Wipro Technical Lead Interview Questions and Answers

WebLogic is an application server for building and deploying enterprise applications in Java EE environments.

• Supports Java EE standards, enabling developers to create scalable applications.

• Provides features like clustering for high availability and load balancing.

• Integrates with various databases and messaging systems, such as Oracle Database and JMS.

• Offers tools for monitoring and managing application performance...read more

Basic Unix commands are essential for navigating and managing files in a Unix-like operating system.

• ls: Lists files and directories in the current directory. Example: 'ls -l' for detailed listing.

• cd: Changes the current directory. Example: 'cd /home/user' to navigate to the user's home directory.

• cp: Copies files or directories. Example: 'cp file.txt /backup/' to copy file.txt to the backup directory.

• mv: Moves or r...read more

Implement a systematic onboarding process to ensure employees have access to necessary applications efficiently.

• Conduct a needs assessment: Identify the specific applications required for each role.

• Utilize an access management system: Implement tools like Okta or Azure AD for streamlined access control.

• Create a checklist: Develop a standardized checklist for onboarding that includes all necessary applications.

• Regu...read more

Authentication verifies identity; authorization determines access rights.

• Authentication is the process of verifying who a user is.

• Authorization is the process of verifying what a user has access to.

• Example of authentication: Logging in with a username and password.

• Example of authorization: A user with admin rights can access all files, while a regular user cannot.

CORS (Cross-Origin Resource Sharing) is a security feature in web applications to control which origins can access resources.

• CORS is used to prevent unauthorized access to resources on a different domain

• It is implemented by the server to specify which origins are allowed to access its resources

• CORS headers like Access-Control-Allow-Origin, Access-Control-Allow-Methods, and Access-Control-Allow-Headers are used to ...read more

Java 11 introduced a new garbage collector called Epsilon.

• Java 11 introduced a new experimental garbage collector called Epsilon, which is a no-op garbage collector.

• Epsilon is designed for applications that do not require garbage collection, essentially turning off the garbage collector.

• This can be useful for performance testing or short-lived applications where the overhead of garbage collection is not needed.