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Here are Automation Testing interview questions and answers for fresher and experienced candidates to get their dream job.
Automation Testing uses an automation tool to execute test cases. The main goal of Automation Testing is to reduce the number of test cases to be run manually and not eliminate Manual Testing.2) When will you automate a test?
Automation is preferred in the following cases
Smoke and Sanity Tests.
Test with multiple data sets.
Testing is not recommended for one-off test cases. Usually, the decision on which test cases to automate is based on the ROI (Return on Investment). The more times the automated test is executed, the better the ROI.
3) When will you not Automate testing?
One should not automate in the following cases
When the Application Under Test changes frequently
One-time test cases
Adhoc – Random Testing
Usability tests that generally need manual intervention to check the test results
Test cases with detailed setup requirements to be done before each execution
Test cases that return unpredicted test results
Exclude unplanned test case4) What are the steps involved in the Automation Process?
In the automation process, the steps involved are
Selecting the Test tool
Define the scope of automation
Planning, design, and development
Maintenance5) What are the points covered while planning the phase of automation?
During the planning phase of automation, things that must be taken into concern are:
Selection of the “right” Automation tool
Selection Automation Framework, if any.
List of in-scope and out-of-scope items for automation.
Test Environment Setup.
Preparing Gantt Chart of Project timelines for test script development & execution.
Identify Test Deliverables.6) In what condition you can’t use automation testing for the Agile method?
Automation testing is not helpful for agile methods in the following conditions:
When user stories are constantly changing
When an exhaustive level of documentation is required in Agile.
Only suitable for regression tests during agile testing, like continuous integration.
Learn more about Agile Testing.7) What is a test script?
A test script is a code to perform a set of instructions on an application. It is used to verify whether the application is functioning as per the software requirements.
When you run your script, it gives the test results as a pass or fails, which is determined by whether the application works as per the expectations.8) How to select a good test automation tool?
Wide Test Environment support
Easy to use
Good debugging facility
Robust object identification
Record and Playback
Supports common programming languages for test script creation, for example, Java
Image testing abilities
Testing of database
Support multiple automation frameworks
Type of support is available for the tools like documentation, tutorials, training, etc
Cost and budget
Good reporting system9) Can you tell me some good coding practices while automation?
Here are good automation practices:
You should identify the reusable methods and write them in a separate file.
Must follow the language-specific coding conventions.
Store the test data in a separate file.
Run your scripts regularly.10) What is a Modular Testing framework?
Modular Testing framework is built on the concept of abstraction. In this type of framework, the tester creates scripts for all the application modules under test, and then these scripts are combined in a hierarchical order to create test cases.11) Data-Driven Testing framework
In Data driven testing framework, the input and expected output data corresponding to the input data is stored in a file or database.
The automated script runs the same test steps for multiple data sets. It also allows you to run multiple test cases where only the input data differs, but the steps of execution remain the same.12) What version control systems do you use?
We use GitHub. Version control helps you to track code changes. It controls the test script source code with a recorded history of changes to simplify the modification process. You may also revert to previous code versions if you make a mistake.13) What are XPath Axes? Name some of them.
XPath is a syntax that manipulates XML (Extensible Markup Language) data. They help to locate nodes related to those on the tree. Some important XPath Axes are ancestor, child, namespace, parent, etc.14) How can you speed up an auto test suite?
Applications that require UI testing that interacts with multiple elements can slow down the testing process. It’s better to create a simple test script that speeds up test execution.15) Is documentation necessary in Automation Testing?
Documentation plays a vital role in Test Automation. You should document all the methods and procedures to ensure their repeatability. Test specifications, designs, code changes, test cases, automation plans, bug reports16) What types of frameworks are used in software automation testing?
Four types of frameworks used are
Data-driven automation framework
Keyword-driven automation framework
Modular automation framework
Hybrid automation framework
Learn more about automation frameworks17) Is it possible to achieve 100% automation?
No, it is not possible to automate everything. Achieving 100% automation is difficult as there are some scenarios where a registration page has a captcha or some test cases we don’t execute often. Moreover, automating these test cases will not add value to the automation or bring positive ROI.18) What is the average number of test cases you have automated per day?
The answer depends on the length and complexity of the test scenario. Generally, a QA tester can automate 2-4 test scenarios daily when the complexity is limited. However, sometimes it might reduce to 1-2 when the complexity is high.19) What is the scripting standard while performing automation testing?
While writing the scripts for automation, you must consider the following things:
Uniform naming convention.
Robust error handling and recovery scenario.
Use of Frameworks wherever possible.20) What are the most popular tools for automation testing?
The most popular test tool for automation testing are:
Here is a complete list of automation testing tools.21) How can you measure the success of automation testing?
Following criteria can map the success of automation testing:
Defect Detection Ratio
Automation execution time and time savings to release the product
Reduction in Labour & other costs
Manual testing requires more time and more resources.
Executing the same test case repeatedly is error-prone and tedious.
It is impractical to do manual testing on very large and time-bound projects.23) What are the differences between open-source tools, vendor tools, & in-house tools in automation testing?
Here are the differences between all:
Open-Source Tools: They are free tools with source code available on the internet. Example: Selenium
Vendor Tools: These testing tools are developed by companies, and you need to purchase their licenses. Example: Microfocus UFT.
In-house Tools: It is built by companies for their use.24) What are the Prerequisites of Automation Testing?
A few important pre-requisites of Automation Testing are:
A stable build
Functionalities to be tested
Test cases for automated Testing25) Can you do automation without a framework?
Frameworks are guidelines and not mandatory to create and execute automation scripts. So, yes, we can automate without a framework. Enhancing and maintaining test scripts would be easy if we created and followed a framework.26) Tell me what you know about Selenium
Selenium is a free (open source) test automation suite. It is used to automate Web and Mobile environments. It consists of the following.
Selenium IDE (Browser Addon–Record and Playback Tool)
Selenium Grid (Distributed Testing)
QTP (Quick Test Professional) is now known as Microfocus UFT. It is a commercial automation tool and supports an extensive range of test environments: Web, Desktop, SAP, Delphi, Net, ActiveX, Flex, Java, Oracle, Mobile, PeopleSoft, PowerBuilder, Siebel, Stingray, and Visual Basic, amongst others.
The scripting language is VBScript. The tool gels well with ALM (Test Management Tool) and LoadRunner (Performance Testing Tool).
Salient features of QTP include Business Process Testing, keyword-driven framework, XML support, robust checkpoints, and test results.28) What is SikuliX?
SikuliX is a tool that uses the “Visual Image Match” method to automate the graphical user interface. All the web elements in SikuliX should be taken as an image and stored inside the project.
SikuliX is comprised of
Visual Scripting API for Jython
Practical uses of SikuliX are:
It can automate window-based applications and anything you see on screen without using internal API support.
It provides a simple API.
It can be easily linked with tools like Selenium.
Web applications can be automated.
SikuliX offers extensive support to automate flash objects.
It can work on any technology chúng tôi Java.29) Mention what the difference between Selenium and SikuliX is?
It provides extensive support to automate flash objects It cannot automate flash objects like video players or audio players.
It has a simple API It has got complicated API
It uses a visual match to find elements on the screen. So, we can automate anything we see on the screen. It uses CSS, ID, locators, and other selected to identify GUI elements
It can automate the web as well as windows application It can automate only web applications30) What are the attributes of a good automation framework?
Here are some important attributes of a good automation framework:
Modular: It is a framework that should be adaptable to change. So that testers should be able to modify the scripts as per the environment.
Reusable: It should be reusable so that methods or utilities should be written in a common file accessible to all the scripts.
Consistent: It should be written in a consistent format.
Independent: The automation scripts should be written in such a way that they are independent of each other.
Integration: Automation Framework should be developed in such a way that it is easy to integrate with other applications.31) What is Cross-Browser Testing?
It is a subset of browser automation testing that helps you ensure that the online application operates correctly across different browsers. Google Chrome, Mozilla Firefox, Microsoft Edge, Safari, etc.
The main aim of cross-browser testing is to check that your website or web app works correctly on different combinations of browsers and OS.32) Which Testing can be done using the Selenium Framework?
You can use a Selenium framework for the following testing:
Load testing of web applications.
Regression testing of web applications.
Functional testing of web applications.33) Is Automation testing white box testing or black box testing?
Automation testing is primarily black box testing.34) What keyword is used to fetch the URL of the current page in Selenium?
Selenium WebDriver can help you find the current URL of a page with the getcurrentURL(). This method will find the URL of the open applications and result in a string.35) Where will you maintain information like URL, login, and password?
URL, login, and password are important information used very often and change frequently. They should always be maintained in a separate file. If not done, then the automation tester must change it in every file with its reference.36) What are the Extensions and Test Assets of QTP?
Some Important Test Assets and extensions of QTP are:
Recovery scenario .qrs
Test batch runner .mtb
Shared object repository .tsr
Local object repository .mtr
Test file .mts
Function library .qfl37) What are the differences between manual testing and automation testing?
Here are some major differences between manual and automation testing:
Parameters Manual Testing Automation Testing
Time consumption More Less
STLC Follow manually Follows using tool
Cos Less expensive Expensive
Reliability Less Reliable Highly Reliable
Quality Low High
Skill Set Less skill set required High skill set is required.38) What are the essential modules of an automation testing framework?
Here are some essential modules of the automation testing framework:
Test Assertion Tool: This testing tool will provide assert statements for assessing the expected values in the application under test. For Example, Junit, TestNG, Junit, etc.
Data Setup: Ensures that each test case takes the test data from the database, a file, or embedded in the test script.
Build Management Tool: The framework requires to be built and deployed to create test scripts.
Continuous integration tool: They are required to integrate and deploy the changes done in the framework at each iteration.
Reporting tool: It helps to generate a readable report after the test cases for a better view of the steps, failures, and results.
Logging tool: They help in better debugging of the error and bugs.39) What is Cucumber? 40) What is Test Complete?
TestComplete is an automated UI testing tool for desktop applications, web, mobile, etc. It offers the flexibility to record a test case on one browser and run it on multiple browsers, thus supporting cross browsers testing.41) What is Cypress?
Selenium gives alerts if there are issues while you test. The pop-up interface allows you to handle the alert by switching the control to the pop-up, pressing the OK or Cancel buttons, and turning back to the source page screen.String srcPage = driver.getWindowHandle(); Alert pop = driver.switchTo().alert(); 43) What is a Hybrid Testing framework?
The Hybrid Testing framework develops the test cases from modular scripts by combining them in the modular testing framework.44) Write steps to automate primary “login” functionality test cases for an application?
Here are the steps to automate basic login functionality:
Step 1) Understand the project requirement.
Step 2) Identify the Test scenarios
Step 3) Prepare a data input file with the data corresponding to each scenario
Step 4) Launch the tool from the program.
Step 5) Identify the username, password, and login buttons.
Step 6) Verify that the error message for negative scenarios is the same as the success message for positive test -scenarios.
These interview questions will also help in your viva(orals)
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Here are Machine Learning interview questions and answers for fresher as well as experienced candidates to get their dream job.1) What is Machine learning?
Machine learning is a branch of computer science which deals with system programming in order to automatically learn and improve with experience. For example: Robots are programed so that they can perform the task based on data they gather from sensors. It automatically learns programs from data.2) Mention the difference between Data Mining and Machine learning?
Machine learning relates with the study, design and development of the algorithms that give computers the capability to learn without being explicitly programmed. While, data mining can be defined as the process in which the unstructured data tries to extract knowledge or unknown interesting patterns. During this process machine, learning algorithms are used.
3) What is ‘Overfitting’ in Machine learning?
In machine learning, when a statistical model describes random error or noise instead of underlying relationship ‘overfitting’ occurs. When a model is excessively complex, overfitting is normally observed, because of having too many parameters with respect to the number of training data types. The model exhibits poor performance which has been overfit.4) Why overfitting happens?
The possibility of overfitting exists as the criteria used for training the model is not the same as the criteria used to judge the efficacy of a model.
5) How can you avoid overfitting?
By using a lot of data overfitting can be avoided, overfitting happens relatively as you have a small dataset, and you try to learn from it. But if you have a small database and you are forced to come with a model based on that. In such situation, you can use a technique known as cross validation. In this method the dataset splits into two section, testing and training datasets, the testing dataset will only test the model while, in training dataset, the datapoints will come up with the model.
In this technique, a model is usually given a dataset of a known data on which training (training data set) is run and a dataset of unknown data against which the model is tested. The idea of cross validation is to define a dataset to “test” the model in the training phase.6) What is inductive machine learning?
The inductive machine learning involves the process of learning by examples, where a system, from a set of observed instances tries to induce a general rule.7) What are the five popular algorithms of Machine Learning?
Neural Networks (back propagation)
Support vector machines8) What are the different Algorithm techniques in Machine Learning?
The different types of techniques in Machine Learning are
Learning to Learn9) What are the three stages to build the hypotheses or model in machine learning?
Applying the model10) What is the standard approach to supervised learning?
The standard approach to supervised learning is to split the set of example into the training set and the test.11) What is ‘Training set’ and ‘Test set’?
In various areas of information science like machine learning, a set of data is used to discover the potentially predictive relationship known as ‘Training Set’. Training set is an examples given to the learner, while Test set is used to test the accuracy of the hypotheses generated by the learner, and it is the set of example held back from the learner. Training set are distinct from Test set.12) List down various approaches for machine learning?
The different approaches in Machine Learning are
Concept Vs Classification Learning
Symbolic Vs Statistical Learning
Inductive Vs Analytical Learning13) What is not Machine Learning?
Rule based inference14) Explain what is the function of ‘Unsupervised Learning’?
Find clusters of the data
Find low-dimensional representations of the data
Find interesting directions in data
Interesting coordinates and correlations
Find novel observations/ database cleaning15) Explain what is the function of ‘Supervised Learning’?
Predict time series
Annotate strings16) What is algorithm independent machine learning?
Machine learning in where mathematical foundations is independent of any particular classifier or learning algorithm is referred as algorithm independent machine learning?17) What is the difference between artificial learning and machine learning?
Designing and developing algorithms according to the behaviours based on empirical data are known as Machine Learning. While artificial intelligence in addition to machine learning, it also covers other aspects like knowledge representation, natural language processing, planning, robotics etc.18) What is classifier in machine learning?
A classifier in a Machine Learning is a system that inputs a vector of discrete or continuous feature values and outputs a single discrete value, the class.20) In what areas Pattern Recognition is used?
Pattern Recognition can be used in
Bio-Informatics21) What is Genetic Programming?
Genetic programming is one of the two techniques used in machine learning. The model is based on the testing and selecting the best choice among a set of results.22) What is Inductive Logic Programming in Machine Learning?
Inductive Logic Programming (ILP) is a subfield of machine learning which uses logical programming representing background knowledge and examples.23) What is Model Selection in Machine Learning?
The process of selecting models among different mathematical models, which are used to describe the same data set is known as Model Selection. Model selection is applied to the fields of statistics, machine learning and data mining.24) What are the two methods used for the calibration in Supervised Learning?
The two methods used for predicting good probabilities in Supervised Learning are
These methods are designed for binary classification, and it is not trivial.25) Which method is frequently used to prevent overfitting?
When there is sufficient data ‘Isotonic Regression’ is used to prevent an overfitting issue.26) What is the difference between heuristic for rule learning and heuristics for decision trees?
The difference is that the heuristics for decision trees evaluate the average quality of a number of disjointed sets while rule learners only evaluate the quality of the set of instances that is covered with the candidate rule.27) What is Perceptron in Machine Learning?
In Machine Learning, Perceptron is a supervised learning algorithm for binary classifiers where a binary classifier is a deciding function of whether an input represents a vector or a number.28) Explain the two components of Bayesian logic program?
Bayesian logic program consists of two components. The first component is a logical one ; it consists of a set of Bayesian Clauses, which captures the qualitative structure of the domain. The second component is a quantitative one, it encodes the quantitative information about the domain.29) What are Bayesian Networks (BN)?
Bayesian Network is used to represent the graphical model for probability relationship among a set of variables.30) Why instance based learning algorithm sometimes referred as Lazy learning algorithm?
Instance based learning algorithm is also referred as Lazy learning algorithm as they delay the induction or generalization process until classification is performed.31) What are the two classification methods that SVM ( Support Vector Machine) can handle?
Combining binary classifiers
Modifying binary to incorporate multiclass learning32) What is ensemble learning?
To solve a particular computational program, multiple models such as classifiers or experts are strategically generated and combined. This process is known as ensemble learning.33) Why ensemble learning is used?
Ensemble learning is used to improve the classification, prediction, function approximation etc of a model.34) When to use ensemble learning? 35) What are the two paradigms of ensemble methods?
The two paradigms of ensemble methods are
Sequential ensemble methods
Parallel ensemble methods36) What is the general principle of an ensemble method and what is bagging and boosting in ensemble method?
The general principle of an ensemble method is to combine the predictions of several models built with a given learning algorithm in order to improve robustness over a single model. Bagging is a method in ensemble for improving unstable estimation or classification schemes. While boosting method are used sequentially to reduce the bias of the combined model. Boosting and Bagging both can reduce errors by reducing the variance term.37) What is bias-variance decomposition of classification error in ensemble method?
The expected error of a learning algorithm can be decomposed into bias and variance. A bias term measures how closely the average classifier produced by the learning algorithm matches the target function. The variance term measures how much the learning algorithm’s prediction fluctuates for different training sets.38) What is an Incremental Learning algorithm in ensemble?
Incremental learning method is the ability of an algorithm to learn from new data that may be available after classifier has already been generated from already available dataset.39) What is PCA, KPCA and ICA used for?
PCA (Principal Components Analysis), KPCA ( Kernel based Principal Component Analysis) and ICA ( Independent Component Analysis) are important feature extraction techniques used for dimensionality reduction.40) What is dimension reduction in Machine Learning?
In Machine Learning and statistics, dimension reduction is the process of reducing the number of random variables under considerations and can be divided into feature selection and feature extraction.41) What are support vector machines?
Support vector machines are supervised learning algorithms used for classification and regression analysis.42) What are the components of relational evaluation techniques?
The important components of relational evaluation techniques are
Ground Truth Acquisition
Cross Validation Technique
Significance Test43) What are the different methods for Sequential Supervised Learning?
The different methods to solve Sequential Supervised Learning problems are
Recurrent sliding windows
Hidden Markow models
Maximum entropy Markow models
Conditional random fields
Graph transformer networks44) What are the areas in robotics and information processing where sequential prediction problem arises?
The areas in robotics and information processing where sequential prediction problem arises are
Model based reinforcement learning45) What is batch statistical learning?
Statistical learning techniques allow learning a function or predictor from a set of observed data that can make predictions about unseen or future data. These techniques provide guarantees on the performance of the learned predictor on the future unseen data based on a statistical assumption on the data generating process.46) What is PAC Learning?
PAC (Probably Approximately Correct) learning is a learning framework that has been introduced to analyze learning algorithms and their statistical efficiency.47) What are the different categories you can categorized the sequence learning process?
Sequential decision48) What is sequence learning?
Sequence learning is a method of teaching and learning in a logical manner.49) What are two techniques of Machine Learning?
The two techniques of Machine Learning are
Inductive Learning50) Give a popular application of machine learning that you see on day to day basis?
The recommendation engine implemented by major ecommerce websites uses Machine Learning.
These interview questions will also help in your viva(orals)
Introduction To Java Testing Interview Questions And Answers
Due to its platform-independent nature, nowadays Java is mainly used in all kinds of daily life applications such as Windows-based Application, Complex Web Applications, Mobile Applications (Android), ATM Machines, Servers, Kernel Level Applications and so on. Java is a high-level language Software Engineer who uses Java to build many frameworks related to testing automation.
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Below are the 10 important 2023 Java Testing Interview Questions and Answers:
To start knowing about Java, we also can get to know about the concept of Object-Oriented Programming, Class and its accessible Objects, Encapsulation, Polymorphism, Inheritance, Interface, Abstract Class, Java Threading, Collection Framework and so on. Before starting to know about Java, we need to know about JVM (Java Virtual Machine), JRE (Java Runtime Environment) and JDK (Java Development Kit). When we install JRE or JDK in our System to run Java, JVM also gets installed. JVM contains Java Compiler with it that compiles the Java classes that mean .java files to Byte Code Converted files that mean .class files. These .class files are platform-independent in nature.
Java has been designed by James Gosling and developed by Sun Microsystems but now by Oracle Corporation. To run Java in the System on Java Runtime Environment needs to be installed in the target System. Most of the Automation systems use Java as their development language. One of the Java Automation testing tools is known as Selenium Automation Testing. Unit tests also performed in Java using JUnit. Developers can write application-specific Junit test cases using Java. There are different types of automation frameworks available like Hybrid Testing Framework, Data-Driven Testing Framework, Keyword Driven Testing Framework, Modular Testing Framework, and Behavior-Driven Development Framework and so on.
Finally, it comes to know that Java is an Object-Oriented Programming Language that provides all kinds of solutions in real life. It provides a solution to build applications for Desktop, Web, Mobile and also helps to create Kernel level applications, Servers and so on. Not only this, but it also provided solutions to write down the various test cases using JUnit. And to execute or perform those test cases, many Java-based Automation testing tools are available like Selenium, QTP (Quick Test Professional) and so on.
If you are looking for a job that is related to Java Testing, you need to prepare for the 2023 Java Testing Interview Questions. Though every interview is different and the scope of a job is also different, we can help you out with the top Java Testing Interview Questions with answers, which will help you take the leap and get your success in your interview. These questions are divided into parts are as follows:Part 1 – Java Testing Interview Questions (Basic)
This first part covers basic Java Testing Interview Questions and Answers1. What do you know about Framework?
The framework is nothing but a set of rules that we must follow in a systematic way to achieve the desired goal. In Java, there are many frameworks available, such as MVC Frameworks, to develop applications, build up the unit test cases, and perform the automation testing.2. What is the Test Automation Frameworks?
There are the basic Java Testing Interview Questions asked in an interview. Below are some popular Test Automation Frameworks:
Modular Testing Framework.
Keyword Driven Testing Framework.
Hybrid Testing Framework.
Data-Driven Testing Framework.3. Why did you want to use Framework?
In Test Automation Framework, we need to handle many files. To organize those files and systemically complete all tasks and achieve the goal successfully, we have to support any Framework.
Let us move to the next Java Testing Interview Questions.
Automation Testing is faster and better than Manual Testing. So using Test Automation Framework, it saves time as well as money.
In Automation Testing, the probability of getting work test results after execution of any test cases is very low compared to Manual Testing. So it is more reliable.
We can get the test report automatically after the execution of test cases. No manual intervention required for the same.
Minimal manual intervention required in Test Automation Framework.5. Which Framework you have used in your Selenium Project?
In the Selenium Project, we mostly use Java language to develop. Though Selenium supports multi-languages to develop Java with Selenium is the best match. Selenium Project that we have worked upon basically used Data-Driven Testing Framework where Page Object Model design pattern has been used along with Page Factory.Part 2 – Java Testing Interview Questions (Advanced) 6. Where do you apply Object-Oriented Programming concepts in Test Automation Framework? 7. What do you mean by Automation Testing?
Automation testing is a software testing process where minimal manual intervention is required, which is used for software testing by executing some test cases to find out the defects and share the automated test result after execution. Many tools are available to perform this automation testing, like Selenium Web Driver, Appium, Cucumber, Test Studio, RSpec, etc.
Let us move to the next Java Testing Interview Questions.8. What type of Test Cases did you prefer to be automated?
The test cases I preferred to be automated are as below:
Sanity Test Cases
Regression Test Cases
Smoke Test Cases9. Why do you like to use Selenium?
These are the frequently asked Java Testing Interview Questions asked in an interview. I would like to use the Selenium Automation Testing tool for the below reasons.
Selenium is free to download and use and also open source.
Cross-browser compatibility supports by Selenium.
Multi-language support and very easy compatibility with Java.
A large no of users are using Selenium as a Test Automation tool; that’s why the help communities are larger compared to the other test Automation tools.10. What type of test cases you would not prefer to be automated?
Based on Project Stability, the test cases that change frequently or the test cases that I need to run rarely or only one time, I would not pick up those to be automated.Recommended Article
This has been a guide to the List Of Java Testing Interview Questions and Answers so that the candidate can crackdown these Java Testing Interview Questions easily. Here in this post, we have studied about top Java Testing Interview Questions, which are often asked in interviews. You may also look at the following articles to learn more –
Introduction To JMeter Interview Questions And Answers
Web development, programming languages, Software testing & others
This article contains the top 10 most frequently asked JMeter interview questions and answers. This will help the candidate to succeed in the interview.Part 1 – Basic JMeter interview questions with answers 1. What is the use of the regular expression in JMeter?
Regular expressions in JMeter extract some values dynamically from the response. The values act as the intermediate results in subsequent requests to the server or save them for reporting purposes. Both pre-processors and post-processors use regular expressions.2. Explain the flow of the Test script recorder.
HTTP(s) Test Script Recorder records all the HTTP(s) requests going to the server from the application. The following changes are made in the JMeter application to make it work.
Enter the port number to start your proxy server.
Select a workbench or add a recording controller in the test plan and select the same target for storing all recordings in one place.
Start the proxy server.
Configure the browser with manual proxy settings with port numbers the same as in the test script recorder.
Let us move to the next JMeter Interview Questions.3. Can we run selenium scripts on JMeter? If yes, how?
Answer:4. What are the roles of the listeners in the JMeter?
The role of the listeners in the JMeter is to save the outcomes of the test after viewing the same. They are very useful in tabular and graphical analysis of the outcomes. Commonly used listeners are the aggregate graph, view results tree, an aggregate report.5. What are the main parts of the thread group?
The main parts of the thread group in the JMeter are a controller, sampler, assertion, configuration elements, and listeners. The detailed description is as follows:
Controller: It controls the flow of the thread group.
Sampler: It sends different requests to the server.
Assertion: This is responsible for time management as it checks whether the response is there for a request within a specific time.
Configuration elements: It manages the information related to the requests integrated with the samplers.
Listener: It saves the final output of the task.Part 2 – JMeter Interview Questions (Advanced) 6. What is a Post-processor in JMeter?
The post-processor in the JMeter is used after the accomplishment of the sampler request. That is, it takes any action in response to a request. It is simple to use to extract values from the sampler response.7. Explain the execution order of the test elements.
Listeners8. How to manage cookies and sessions in the JMeter?
We can manage cookies and sessions in the JMeter by using config elements such as HTTP cache manager which can clear the cookies in every iteration and allows users to add user-defined cookies. It also helps to clear the cache as per user requirements in the load tests, and it limits the number of elements that can be stored in the cache. These config elements can be attached to the listener.9. What is the purpose of a workbench in JMeter?
The workbench is a storage area for storing and adding the components to the test plan as needed. The components of the workbench with the test plan are temporarily saved. It has to save as test fragments. The HTTP request test script recorder is the essential part of the workbench for storing HTTP request recordings, which later measures the performance.10. What are the types of controllers in the JMeter?
Controllers in the JMeter control the flow of the request. Some of the controllers in the JMeter are as below:
Loop controller and
Finally, it’s an overview of JMeter and the most frequently asked topics in the interviews. I suggest you go through the remaining concepts in addition to this article to clear the interview 100 percent. All the best for your interview.Recommended Articles
This has been a guide to the list of JMeter interview questions and answers so that the candidate can crack the interview easily. You may also look at the following articles to learn more –
Here are SDLC interview questions and answers for fresher as well as experienced candidates to get their dream job.
SDLC is an abbreviation of Software Development Life Cycle. SDLC is series of steps that offers a defined model for the development and lifecycle management of an application.2) Name five Models used in SDLC
Rapid Application Development(RAD) model
Spiral model3) Explain Phases of the waterfall model
Following are the different Waterfall Model phases:
Implementation & Maintenance4) States the importance of Design phase?
5) What are the tasks performed in Coding phase?
In the coding phase, the design document is converted into an executable programming language. The output of the coding stage is the source code which can act as input for testing and maintenance phase.6) What is feasibility study?
Feasibility allows assessing how viable software project development will be for any organization. The software analyst does the complete study to understand the operational, economic, and technical feasibility of any project.7) What are the Maturity levels in CMM?
Capability Maturity Model is a benchmark for analyzing the maturity of an organization’s software development process. It is a technique which is used to refine a company’s software development process. It is using to assess any company against a scale of five different levels of levels based on their Key Process Areas. It tells about the maturity of the company based on the project the company is dealing with and the clients.
Initial, Managed, Defined, Quantitatively Managed and Optimizing are five levels which determine CMM levels of any company.8) Give some benefits of using V model?
Simple and easy to use.
Each phase has specific
V model is more successful because of the early development of test plans. This reduces the cost of bug fixes
Works most effective with small projects where requirements are small9) What is the ‘scope’ of a project?
The scope of the project is nothing but, the goals, objectives, and expectations of the project. Software scope is a well-defined boundary, which includes all the process which are performed to develop and deliver the software product. The software scope consists of all functionalities and artifacts to be delivered to the software system. The software scope also helps to identifies what the system will do and what it will not do.10) According to you, when should users be trained on a new system?
During the implementation phase11) Name the phase where the performance of the new system monitored? 12) What is a computer-based information system?
It is a system in which computers perform some procedures.13) Explain Low Level Or Detailed Design concerning SDLC
In Low-Level Design, High-Level Design is broken down into modules and programs. Logic design is developed for every program, and it will be documented as program specifications.14) What is the use of JAD session?
JAD (Joint Application Design) session is used to gain data and information about the system15) State the Difference Between SDLC And Stlc
SDLC involves the complete Verification and Validation of a Project. SDLC stage requires business requirement analysis, design, Development Process, Testing Process, and Maintenance.
Whereas STLC involves only Validation.16) Who are the people involved in the phases of Waterfall Model
The people involved in the waterfall model depend upon the structure of the organization. Here, are professionals who are generally involved
Technical Manager or Senior Developers
Technical Lead or System Architect in Design Phase
Developers in Coding phase.
Testers in Testing Phase.
Project Manager, and Maintenance Team in the Maintenance phase17) What is level-0 DFD?
Highest abstraction level is called Level 0 DFD (Data Flow Diagram). It is also is known as context level DFD. It gives specifications about the entire information system as one diagram which has all the details about the system.18) Explain the team Requirement Gathering concerning SDLC
Requirement Gathering is an important SDLC phase. In this stage business requirements are gathered. The schedule and cost of the project also analyse in this phase.19) Briefly explain Testing Phase
Different testing methodologies are practiced detecting the software bugs, which happen to take birth during the previous phases. Today, there are many types o testing tools, and methodologies are available. Few firs are also building their testing tools, which are custom made as per the need or their organizations.20) What are problems faced in the waterfall model?
Some of the common problems face in waterfall model are
Waterfall model is not ideal for complex projects where requirements are not clear
It needs lots of time to complete every stage
There are certain bugs which never rectified in this model21) What is the details study of the existing system is called?
The detailed study of the existing system is called System analysis22) What is the main aim of prototyping aim?
Prototyping offers mini-model of the proposed system23) In which step of SDLC project early termination could be done?
In the SDLC process, project termination can be performed in the feasibility study phase.24) According to you which is most creative and challenging phase of system life cycle?
The design is one of the most challenging phases of the SDLC lifecycle.25) Name the type of feasibility where the cost saving and additional profits will exceed the investment required.
It is known as Economic Feasibility26) Can bug fixes also include software maintenance?
Yes, bug fixes stage also includes software maintenance27) Cost of error correction is least in which stage of SDCL life cycle?
Cost of error correction is very less at the early stage of requirement analysis.
These interview questions will also help in your viva(orals)
blog / Technology Top Cloud Engineer Interview Questions and Answers in 2023
With cloud computing becoming an integral part of the digital world, cloud engineer careers are in more demand than ever before. There are currently 145,000+ job openings for cloud engineers in the U.S. with the national average remuneration standing at $113,260 per year. Hence, knowing how to answer the most frequently asked cloud engineer interview questions will improve the odds of succeeding in an interview for the role.
In this article, we have compiled a list of the most widely encountered interview questions for cloud engineers along with some sample responses to help professionals prepare.Basic Cloud Engineer Interview Questions 1. What is Cloud? List Some Different Versions of Cloud.
The term ‘cloud’ refers to a collaboration between networks, hardware, services, storage, and interfaces utilized for provident commuting as a service. It includes three users—end users, cloud service providers, and business management users.
The various cloud versions are ulti-cloud, public cloud, private cloud, and hybrid cloud.2. What is the Meaning of Function as Service?
Function as a Service (FaaS) provides users a platform where they can develop, administer, and run their cloud applications without having to worry about infrastructure maintenance.3. What are the Main Components of the Cloud Ecosystem?
The following are the main components of the cloud ecosystem that define how you view cloud architecture: cloud consumers, direct customers, and cloud service providers.
ALSO READ: How to Become a Cloud Engineer: The Ultimate Career GuideIntermediate Cloud Engineer Interview Questions
Following some knowledge of the basics, let us move on to the intermediate-level cloud engineer interview questions.1. What is the Meaning of AMI and How is it Implemented?
Amazon machine image or AMI is a replication of the root file system. It offers the details necessary for launching an instance. From a single AMI, multiple instances can share the same configuration.
When it comes to launching instances with various specifications, it is necessary to launch various AMIs as well. In the case of instance-store-backed AMIs, it comprises one or more EBS volume snapshots and a template for the instance’s root volume.
The permissions it launches decides which one of the Amazon Web Services (AWS) accounts can use the AMI for launching instances. Additionally, AMIs need block device mapping for defining the volumes in the correct sequence and connecting them to the instances when they are launched.2. What are Serverless Components in Cloud Computing?
Serverless components in cloud computing make it possible to develop applications without having to deal with the hassle of managing the infrastructure. As a result, the user is able to write code without logging into the server.
Virtual machines and container management are handled by serverless machines. These parts also control other aspects, such as multithreading and hardware allocation.3. Sample Cloud Engineer Interview Questions for Mid-Level Executives
What is the full form of EUCALYPTUS and what does it do in cloud computing?
How do the cloud and conventional data centers differ?
What is edge computing?
What are the various implementations of the cloud computing data center?
What are the benefits and drawbacks of serverless computing?
What are some of the cloud-enabling technologies?
Why microservices are essential for a true cloud system
What is the cloud usage monitor?
What functions do APIs provide in cloud services?
What are the key cloud computing metrics?What are the Advanced Cloud Engineer Interview Questions? 1. Describe the Cloud Computing Architecture.
Cloud computing architecture includes the parts of a cloud model that fit together from an architectural standpoint. The model comprises the cloud consumer, cloud provider, and the cloud auditor.
The cloud service consumer is a representation of the various types of uses of cloud services. Regardless of what the requirements are of a particular constituent, it is crucial to combine the appropriate services that can assist both internal and external users.
Cloud providers should be able to make services easily available in order to accommodate changing company needs This includes the on-premises computing model-based services, infrastructure, middleware, and applications.
Cloud auditors offer oversight by an internal or external group which ensures that the consumer group meets its obligations.2. Who are the Cloud Service Providers in a Cloud Ecosystem?
Commercial vendors or businesses that develop their own cloud capabilities are known as cloud service providers. The commercial vendors sell their services to cloud consumers. Alternatively, a business may choose to offer internal cloud services to its own partners, workers, and clients as a service or as a profit center. For such environments, cloud service providers also create applications or services.3. What are Microservices?
Microservices is the process of developing applications using code that is independent of one another and from the underlying platform on which it is being developed. Once developed, each microservice runs a distinct process and interacts via clear, standardized APIs. These services are described as a catalog so that developers may quickly find the appropriate service and comprehend the governance guidelines for usage.4. Why are Microservices Important for a True Cloud Environment?
a. Each microservice is designed to fulfill a specific and limited purpose, and hence application development becomes simplified. Small development teams can then concentrate on creating the code for some of the precisely specified functions.
b. Code changes become smaller and less complex when compared to a complex integrated application. It will be simpler and quicker to make modifications, whether to patch a bug or upgrade a service to meet new requirements.
c. Scalability, which enables fast deployment of an additional instance of a service or changes that service as needs evolve.
d. Microservices undergo extensive testing and validation. Developers can assume the integrity of new apps without continuous testing when they make use of existing microservices.5. What is the Cloud Usage Monitor?
The cloud usage monitor is an autonomous lightweight software application that is responsible for gathering and processing the IT resource utilization data.
Cloud usage monitors may exist in various formats depending on the kind of usage metrics these are designed to gather and how the usage data needs to be collected.
The three typical agent-based implementation formats are: monitoring agent, resource agent, and polling agent.6. How Does the Monitoring Agent Monitor Cloud Usage?
A monitoring agent is a service agent that exists as an intermediate and an event-driven application that resides alongside the current communication channels. It examines and transparently monitors data flows. The monitoring agent is frequently used to gauge message metrics as well as network traffic.7. How Does the Polling Agent Monitor Cloud Usage?
A polling agent is a processing component that collects information about how cloud services are used by polling IT resources. The polling agent has also been used to promptly track the uptime and downtime of IT resources.8. Sample Cloud Engineer Interview Questions for Experienced Developers
What are cloud-native applications?
How does the resource agent monitor cloud usage?
What is an API gateway?
What does ‘containers as a service’ (CaaS) refer to?
What do you mean by encapsulation in cloud computing?
What do you mean by rate limiting in cloud computing?
What are the different data centers deployed for cloud computing?
What are containerized data centers?
What are low-density data centers?
How does resource replication take place in cloud computing?
ALSO READ: What a Good Cloud Engineer’s Salary Package Should be and WhyLearn Online from the Best
While gearing up for a cloud engineer interview, aspirants must remember that top organizations now look for engineers with experience in Linux, OpenStack, Amazon Web Services, Google Compute Engine, and Microsoft Azure. Additionally, having knowledge of DevOps, APIs, and NoSQL improves the chances of landing your dream job. Explore Emeritus’ wide range of online technology courses to become a full-stack developer and stay at the top of your field!
By Rupam Deb
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