FlexM Interview Questions and Answers

Unit Testing

• Unit Testing is a type of testing where individual components or units of a software are tested.

• It focuses on verifying the functionality of each unit in isolation.

• It is usually performed by developers during the development process.

• Examples of unit testing frameworks include JUnit for Java and NUnit for .NET.

Entering valid username and password and successfully logging in

• Enter a valid username and password

• Click on the login button

• Verify that the user is successfully logged in

Test case with invalid credentials and check for error message

• Test with invalid username and password

• Check for error message displayed

• Test with SQL injection

• Test with brute force attack

• Test with session timeout

Test case with valid credentials and expected successful login is most appropriate for testing a login system.

• Test with valid credentials

• Test with invalid credentials

• Test with blank credentials

• Test with special characters in credentials

Smoke testing is a preliminary testing technique to quickly identify major issues in a software build.

• Smoke testing is performed to ensure that the critical functionalities of the software are working as expected.

• It is a high-level testing that focuses on the most important features of the application.

• Smoke tests are usually executed after a new build or deployment to catch any showstopper bugs early.

• The main purpose is to verify if the software is stable enough for further t...read more

The main purpose of a Test Case is to verify that a specific functionality of the software is working correctly.

• Test Cases ensure that the software meets the specified requirements

• They help identify defects and ensure the software is reliable

• Test Cases provide documentation for future reference and regression testing

• They help in reproducing and fixing bugs

• Examples: Testing login functionality, verifying calculations in a financial application

IP addresses are divided into classes A, B, C, D, and E. Each class has a range of IP addresses.

• Class A: 1.0.0.0 to 126.0.0.0

• Class B: 128.0.0.0 to 191.255.0.0

• Class C: 192.0.0.0 to 223.255.255.0

• Class D: 224.0.0.0 to 239.255.255.255

• Class E: 240.0.0.0 to 255.255.255.255

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that assigns IP addresses to devices on a network.

• DHCP is used to automate the process of assigning IP addresses to devices on a network

• DHCP server is responsible for assigning IP addresses to devices

• DHCP client is the device that requests an IP address from the DHCP server

• DHCP lease is the amount of time that a device is allowed to use an assigned IP address

• DHCP relay agent is used to forward DHCP ...read more