TCS IT Analyst Interview Questions, Process, and Tips

Q1. Jdk jvm jre difference
Ans. 
JDK, JVM, and JRE are all related to Java development, but serve different purposes.
• JDK (Java Development Kit) is a software development kit used to develop Java applications.

• JVM (Java Virtual Machine) is an abstract machine that provides a runtime environment for Java bytecode to be executed.

• JRE (Java Runtime Environment) is a software package that provides libraries, Java Virtual Machine, and other components necessa
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Q2. Spring boot flows
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Q3. All containers in spring
Ans. 
Spring framework provides support for managing and configuring containers for dependency injection.
• Spring containers are responsible for instantiating, configuring, and managing beans.

• There are two main types of containers in Spring: BeanFactory and ApplicationContext.

• BeanFactory is the simplest container, providing basic support for DI and lifecycle management.

• ApplicationContext is a more advanced container, providing...read more
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Q4. String is immutable why
Ans. 
String is immutable due to security, thread safety, and performance reasons.
• Immutable strings prevent accidental modification of data, enhancing security.

• Immutable strings are thread-safe, as multiple threads can access them without interference.

• Immutable strings allow for more efficient memory management and optimization.

• Example: String str = "Hello"; str.concat(" World"); // This does not modify the original string.
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Q5. Arrayslist vs linkedlist
Ans. 
ArrayList is a resizable array implementation, while LinkedList is a doubly linked list implementation.
• ArrayList is faster for accessing elements by index, while LinkedList is faster for adding or removing elements in the middle of the list.

• ArrayList uses less memory overhead compared to LinkedList.

• LinkedList allows for constant-time insertions and deletions, while ArrayList requires shifting elements in the underlying...read more
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Q1. Why joining tcs
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Q2. How to handle a project
Ans. 
Handling a project involves planning, organizing, executing, and monitoring tasks to achieve project goals.
• Define project scope, objectives, and deliverables

• Create a project plan with timelines and milestones

• Assign tasks to team members and monitor progress

• Communicate regularly with stakeholders

• Manage risks and issues effectively

• Adapt to changes and adjust the plan as needed
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Q1. Java related and a selenium related
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Q1. Solid principles
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Q2. Define and write some api calls
Ans. 
API calls are requests made to a server to perform specific actions or retrieve data.
• GET request to retrieve data from a server

• POST request to send data to a server

• PUT request to update existing data on a server

• DELETE request to remove data from a server
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Asked to write anagram problem

Q1. Introduce about you
Ans. 
I am a dedicated IT Analyst with 5 years of experience in system analysis and troubleshooting.
• 5 years of experience in IT analysis

• Proficient in system troubleshooting

• Skilled in data analysis and reporting

• Strong knowledge of network security

• Certified in ITIL and CompTIA Security+
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Q2. Swift messaging process
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Q1. Daily Tasks on SCCM & Application Packaging
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Q1. C# And web api
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Q2. SQL Server and RDBMS
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Q3. Java Script and jQuery
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Q1. Salary And location
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Q2. Document to process
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