Software Testing Interview Questions & Answers | Edureka

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Agenda
Software Testing & Its
Market Trends
Software Testing
Types
Top 50 Software Testing
Interview Questions

Introduction To Software Testing

Introduction To Software Testing
Software testing is defined as an activity to
check whether the actual results match the
expected results and to ensure that
the software system is Defect free.

Digital Transformation with Agile
1
Machine Learning in Testing
2
Increase Adoption of DevOps
3
Big Data Testing
4
IoT Testing
5
Performance Engineering
6
Test Automation
7
Combining Manual & Automation Testing
8
Shortening Delivery Cycles
9
Integration
10
Market Trends

Market Trends

Types of Software Testing
Testing of software is done manually, without
the use of automated tool or applications
available in the market.
Automation testing is an Automatic technique
where the tester writes scripts by own and uses
suitable software to test the software.

Companies using Software Testing

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03
02
01 Beginner level
Intermediate level
Advance level

01 What are the phases involved in Software Testing Life Cycle?
Requirements
Analysis1
Test Planning2
Test Case
Development3
Environment Setup4
Test Execution5
Test Cycle Closure6
Software Testing Life Cycle (STLC) identifies
what test activities to carry out and when to
accomplish those test activities.
Software Testing Interview Questions

02 What is the difference between Black box, White box and Gray Box Testing?
Black – Box
Testing
TEST CASE - INPUT TEST CASE - OUTPUT
In black box, internal
structure/design/implementation of
the item being tested is not known to
the tester.
A

In white box, internal
the item being tested is known to the
tester.
White – Box
Testing
02 What is the difference between Black box, White box and Gray Box Testing?

02 What is the difference between Black box, White box and Grey Box Testing?
In grey box, internal
the item being tested is partly known
to the tester.
A
Grey – Box
Testing

03 What are the different levels of Testing?
Unit Testing
Integration Testing
System Testing
Acceptance Testing

04 Explain Defect/Bug Life Cycle
Defect life cycle is a cycle which a
defect goes through during its
lifetime. It starts when defect is found
and ends when a defect is closed,
after ensuring it’s not reproduced.
A
Active
Assign
Closed
Deferred
Rejected
New
Reopened
Verified
Test

05 What is a Test Case?
Test cases engage in collected steps and conditions
with inputs which can be implemented at the time
of testing. This activity focuses on making sure
whether a product went through a set of tests or
fails by any means such as functionality or other
aspects.
A

06 What is the difference between functional and non functional testing?
Functional
Operation
Non-
Functional
▪ Performed before non-functional testing ▪ Performed after functional testing
▪ Describes what the product does ▪ Describes how the product works
▪ Based on customer requirements ▪ Based on customers expectations

07 What is Verification & Validation in Software Testing?
A
Verification
In this technique, testing
is done without the
execution of the code
Validation
Validation is a dynamic
analysis technique where
testing is done by
executing the code.

08 What is Usability Testing?
Usability testing is a testing methodology where
the end customer is asked to use the software
to see if the product is easy to use, to see the
customer's perception and task time
A

09 What are the categories of Defect?
Defect
Wrong
Missing
Extra

10 On what basis acceptance plan is prepared?
Requirement
Document
Customer
Input
Project
Plan
User
Manual
Acceptance Plan

11 What is Coverage and what are different types of Coverage
techniques?
Coverage is a measurement
used in software testing to
describe the degree to which
the source code is tested.
A Coverage
Techniques
Statement
Coverage
Decision
Coverage
Path
Coverage

12 What are the benefits of Automation Testing?
• Supports execution of repeated tasks
• Enables parallel execution
• Aids in testing large test matrix
• Improves accuracy
• Saves time and money
A

13 Why Selenium is a preferred tool for Automation Testing?
Test Scripts OS Platform Browsers

14 What are different Selenium Components?
Selenium is one of the
most popular automated
testing suites.
A

15 What are different types of locators in Selenium?
32 41
ID
Name
Link Text Partial link text
CSS Selector
5 6
Xpath

16 What is XPath?
XPath can be also defined as XML path
It consists of a path expression along with some conditions
XPath is a language to query XML documents
Important strategy to locate elements in Selenium

17 What is the difference between Absolute & Relative XPath?
Absolute XPath
It is the direct way to find
the element from the
start of the node
Relative XPath
The path starts from the
middle of the HTML DOM
structure

18 What are the different Exceptions in Selenium Webdriver?
▪ Timeout Exception
▪ NoSuchElement Exception
▪ ElementNotVisible Exception
▪ StateElement Exception
A

19 What is Selenium Grid and when should we use it?
A
Selenium Grid can be used to execute same or different test scripts on
multiple platforms and browsers concurrently to achieve distributed test
execution, testing under different environments and saving execution time
remarkably.

20 How to launch browser using WebDriver?
➢ WebDriver driver = new FirefoxDriver();
➢ WebDriver driver = new ChromeDriver();
A

21 Should testing be done only after the build & execution phases are complete?
In real-time, testing is always done only after the build and execution phases.
A

22 What is the relationship between Environmental Reality & Test Phases?
Environment reality
becomes more
important as test
phases start moving
ahead.

23 A defect which could have been removed during the initial stage is removed in
a later stage. How does this affect cost?

24 What do you mean by Regression and Confirmation Testing?
A
Regression testing ensures that
defect is not introduced
Confirmation testing ensures
that defect is fixed
Confirmation Testing
Change or fix a DEFECT
Regression Testing

25 Explain Boundary Value Analysis
Boundary Value Analysis (BVA) is a black box
test design technique based on test cases. This
technique is applied to see if there are
any bugs at the boundary of the input
domain.
A

26 What is Random/Monkey Testing?
Random testing is sometimes
called monkey testing. In Random
testing, data is generated randomly
often using a tool.
A
System Test ResultsJunk Characters
as Input
Random Testing

27 On what basis you can arrive to an estimation for your project?
1. Divide the whole project into a smallest tasks
2. Allocate each task to team members
3. Estimate the effort required to complete each task
4. Validate the estimation
A

28 Which test cases are written first: white boxes or black boxes?
Normally Black box test cases are written first and white box test
cases later.
A

29 Mention what are the basic components of defect report format?
▪ Project Name
▪ Module Name
▪ Defect detected on
▪ Defect detected by
▪ Defect ID and Name
▪ Snapshot of the defect
▪ Priority and Severity status
▪ Defect resolved by
A

30 Is Automation testing in agile Methodology useful or not?
Automation testing in agile methodology is very useful and helps in
achieving maximum test coverage in a lesser time of the sprint.
A

31 Which Test Cases can be automated?
▪ Smoke test cases
▪ Regression Test Cases
▪ Complex Calculation test cases
▪ Data-driven test cases
▪ Non-functional test cases
A

32 On what basis you 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
A

33 Explain Load Testing On Websites?
To load test a website, quality assurance
engineers and automation engineers
just need to multiply the number of
responses sent to simulate different
traffic loads.
A

34 What is the difference between Selenium and Sikuli?
▪ It cannot automate flash objects like video player,
audio player,
▪ It has got complicated API
▪ It does not have visual match
▪ It can automate only web applications
Selenium
A
▪ It provides extensive support to automate flash objects
▪ It has simple API
▪ It uses a visual match to find elements on the screen.
So, we can automate anything we see on the screen
▪ It ca n automate the web as well as windows
application.
Sikuli

35 How to click on a hyper link using linkText?
driver.findElement(By.linkText(“Google”)).click();
driver.findElement(By.partialLinkText(“Goo”)).click();
A

36 What is TestNG?
TestNG is an advanced framework designed in a way
to leverage the benefits by both the developers and
testers.
A

37 How to set test case priority in TestNG?
package TestNG;
import org.testng.annotations.*;
public class SettingPriority {
@Test(priority=0)
public void method1() {
}
@Test(priority=1)
}
@Test(priority=2)
}
}
A

38 What is the difference between Selenium and QTP?
Selenium
A
QTP
✓ Selenium supports almost all the popular
browsers like Firefox, Chrome, Safari, Internet
Explorer, Opera etc
✓ Selenium is distributed as an open source tool
and is freely available
✓ Selenium supports testing of only web based
applications
✓ QTP supports Internet Explorer, Firefox and
Chrome. QTP only supports Windows Operating
System
✓ QTP is distributed as a licensed tool and is
commercialized
✓ QTP supports testing of both the web based
application and windows based application

39 What is Object Repository? How can we create Object Repository in Selenium?
Object Repository is a term used to refer to the collection of web
elements belonging to Application Under Test (AUT) along with their
locator values. In Selenium, objects can be stored in an excel sheet
which can be populated inside the script whenever required.
A

40 How to input text in the text box using Selenium WebDriver?
• By using sendKeys()method we can input the text in the text box using
Selenium WebDriver
A

41 What kind of input do we need from the end user to begin proper testing?
Acceptance Test Plan
Requirement
Scenarios for Testing
Risk
Live Data

42 Can you explain Workbench concept?
Phases, steps and
tasks
Workbench
A
▪ Input
▪ Execute
▪ Check
▪ Production Output
▪ Rework

43 What is meant by Defect Cascading?
Defect cascading is a defect which is
caused by another defect. One defect
triggers the other defect.
A

44 What are the different strategies for rollout to end users?
▪ Pilot
▪ Gradual Implementation
▪ Phased Implementation
▪ Parallel Implementation
A

45 Explain how can you find broken links in a page using Selenium WebDriver?
You have to use the anchor tags <a> to determine the
different hyperlinks on the web page. For each <a> tag,
we can use the attribute ‘href’ value to obtain the
hyperlinks and then analyse the response received for
each hyperlink when used in driver.get() method.
A

46 Which technique should you consider using throughout the script “if there is neither frame id
nor frame name”?
If neither frame name nor frame id is available,
then we can use frame by index.
A
driver.switchTo().frame(int
arg0);

47 How to take screenshots in Selenium WebDriver?
You can take a screenshot by using
the TakeScreenshot function. By
using getScreenshotAs() method you can
save that screenshot. .
A
File scrFile =
((TakeScreenshot)driver).getScreen
shotAs(outputType.FILE);

48 Explain how you will login into any site if it is showing any authentication popup for
username and password?
A
WebDriverWait wait = new WebDriverWait(driver, 10);
Alert alert = wait.until(ExpectedConditions.alertIsPresent());
alert.authenticateUsing(new UserAndPassword(**username**,
**password**));

49 How to skip a method or a code block in TestNG?
If you want to skip a particular test method, then you can set the ‘enabled’ parameter in test
annotation to false.
@Test(enabled = false)
A

50 Briefly explain what the following snippet of Java code does
It defines a variable sample of type
WebElement, and uses an XPath search
to initialize it with a reference to an
element that contains the text value
“data”.
A
WebElement sample =
driver.findElement(By.xpath("//*[contains(text(),
'data')]"));

Software Testing Interview Questions & Answers | Edureka

Software Testing Interview Questions & Answers | Edureka

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