CallHub Software Tester Interview Questions and Answers

Q1. What exception have you faced and how to you handle exceptions
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Q2. About robot class
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Q3. Reverse a string/number of vowels in giver string
Ans. 
Reverse a string and count the number of vowels in the given string.
• Create a function that takes a string as input

• Reverse the string using built-in functions or loops

• Count the number of vowels in the string using a loop or regex

• Return the reversed string and the count of vowels
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Q4. Print the repeating substring in given string
Ans. 
Find and print the repeating substring in a given string.
• Iterate through the string and check for repeating substrings

• Use a hashmap to keep track of seen substrings

• Return the repeating substrings as an array of strings
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Q5. Screen shot code
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Q6. Types of waits in selenium
Ans. 
Types of waits in Selenium include implicit, explicit, and fluent waits.
• Implicit wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent wait: Waits for a condition to be true with a defined polling frequency.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
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Q7. Explain runner file and code for report
Ans. 
A runner file is used to execute test scripts and generate reports in software testing.
• Runner file is a script that executes test cases written in a testing framework.

• It can be used to run multiple test cases in a specific order.

• The code for generating reports in a runner file typically includes functions to collect test results and format them into a readable report.

• Example: In a Selenium test automation project, a ru...read more
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Q8. Interface in selenium
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Interface in Selenium is a way to define a set of methods that a class must implement.
• Interface in Selenium is used to define a contract for classes that implement it.

• It helps in achieving abstraction and modularity in test automation.

• Example: WebDriver interface in Selenium is implemented by classes like ChromeDriver, FirefoxDriver, etc.
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Q1. Gave me user story and asked me to write test cases
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Q1. Screening round with questions about my experience
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Q1. What is the difference between inner join and outer join?
Ans. 
Inner join returns only the matching rows between two tables, while outer join returns all rows from both tables.
• Inner join only includes rows with matching values in both tables

• Outer join includes all rows from both tables, even if there are no matching values

• Types of outer joins include left outer join, right outer join, and full outer join
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Q2. How would you test an ATM machine?
Ans. 
To test an ATM machine, I would perform functional, security, and usability testing to ensure it operates correctly and securely.
• Test the functionality of withdrawing cash, depositing cash, checking balance, transferring funds, etc.

• Perform security testing to check for vulnerabilities such as card skimming, unauthorized access, etc.

• Conduct usability testing to ensure the interface is user-friendly and intuitive for cus...read more
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Q3. Previous project details.
Ans. 
I have worked on a project testing a mobile banking application for a major financial institution.
• Performed functional testing to ensure all features worked correctly

• Conducted regression testing after each new release

• Collaborated with developers to troubleshoot and resolve issues

• Created and executed test cases based on user stories
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Q4. What database did you use previously?
Ans. 
I have previously used MySQL and MongoDB databases.
• MySQL was used for relational database management system.

• MongoDB was used for NoSQL database management system.
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Q1. Explain Sanity.
Ans. 
Sanity testing is a subset of regression testing that focuses on testing specific areas of the software after changes to ensure no major issues have been introduced.
• Sanity testing is a quick and focused testing of specific functionalities to ensure they still work after changes.

• It is usually performed before full regression testing to save time and effort.

• Sanity testing is not exhaustive and does not cover all function...read more
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Networking
It configuration
Roger
WAN Technologies
Auto cad
DHCP&HSRP

Q1. What is ip address
Ans. 
An IP address is a unique numerical label assigned to each device connected to a computer network.
• IP addresses are used to identify and locate devices on a network.

• There are two types of IP addresses: IPv4 (e.g. 192.168.1.1) and IPv6 (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334).

• IP addresses can be static (manually assigned) or dynamic (assigned by a DHCP server).
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Q2. What Is networking
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Networking is the practice of connecting computers and other devices together to share resources and information.
• Networking involves setting up connections between devices using cables or wireless technology.

• It allows devices to communicate with each other and share resources such as files, printers, and internet access.

• Networking can be done locally within a home or office (LAN) or over a larger geographical area (WAN...read more
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Q1. C and python programming related Basics questions
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Q2. Core related Questions
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Q1. They asked about our details
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Q1. How to find Xpath of the elements?
Ans. 
Xpath of elements can be found using browser developer tools or automated testing tools.
• Use browser developer tools like Chrome DevTools to inspect elements and generate Xpath

• Automated testing tools like Selenium WebDriver can also generate Xpath for elements

• Xpath can be based on element attributes like id, class, name, etc.

• Xpath can also use element hierarchy to locate elements
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Q2. All about selenium with Java?
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Q1. Why are you leaving your previous org?
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Q2. Explain your last project?
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Q1. What is regression testing
Ans. 
Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.
• It is performed after changes are made to the software

• It ensures that existing functionality is not affected by the changes

• It helps to catch any defects or bugs that may have been introduced by the changes

• It can be automated to save time and effort

• Examples include testing after bug fixes
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Q1. What is SQL in details
Ans. 
SQL is a programming language used to manage and manipulate relational databases.
• SQL stands for Structured Query Language

• It is used to create, modify, and query databases

• SQL commands include SELECT, INSERT, UPDATE, DELETE, and more

• It is used in various database management systems such as MySQL, Oracle, and SQL Server
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