TCS IT Analyst Team Lead Interview Questions and Answers

Q1. Explain Replication in SQL server
Ans. 
Replication is a process of copying and distributing data and database objects from one database to another.
• Replication is used to improve the availability and scalability of databases.

• It can be used for disaster recovery, reporting, and load balancing.

• There are three types of replication: snapshot, transactional, and merge.

• Snapshot replication copies the entire database to another server.

• Transactional replication copi...read more
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Q2. What is cluster in Sql server.
Ans. 
A cluster in SQL Server is a group of servers that work together to provide high availability and scalability.
• A cluster is used to ensure that a database is always available, even if one server fails.

• It allows for load balancing across multiple servers to improve performance.

• SQL Server supports two types of clusters: failover clusters and active-active clusters.

• Failover clusters have one active server and one or more s...read more
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Q3. What are the high availability techniques
Ans. 
High availability techniques ensure system uptime and minimize downtime.
• Redundancy of hardware and software components

• Load balancing to distribute traffic across multiple servers

• Clustering to provide failover capabilities

• Disaster recovery planning to ensure business continuity

• Automated monitoring and alerting to quickly identify and resolve issues
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Q4. How will you fix log space issue and tempdb issues.
Ans. 
To fix log space and tempdb issues, I would increase the size of the log file and move tempdb to a separate drive.
• Increase the size of the log file to prevent it from filling up too quickly

• Move tempdb to a separate drive to improve performance and prevent it from competing with other databases for space

• Regularly monitor and manage log space and tempdb usage to prevent future issues
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Q5. What is fragmentation
Ans. 
Fragmentation is the process of breaking something into smaller pieces or parts.
• Fragmentation can occur in various fields such as computer storage, memory, and databases.

• In computer storage, fragmentation happens when files are broken into smaller pieces and scattered across different parts of the hard drive, making it slower to access the data.

• In memory, fragmentation occurs when there are small gaps between blocks of...read more
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Q6. Difference between blockings and dead locks.
Ans. 
Blocking occurs when one transaction holds a lock on a resource that another transaction needs, while a deadlock occurs when two or more transactions are waiting for each other to release locks.
• Blocking occurs when a transaction is waiting for a resource that is locked by another transaction.

• Deadlock occurs when two or more transactions are waiting for each other to release locks.

• Blocking can be resolved by allowing th...read more
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Q7. Performance tuning in sql server
Ans. 
Performance tuning in SQL Server
• Identify slow queries using SQL Profiler or DMVs

• Optimize query execution plan using indexes and statistics

• Reduce network latency by minimizing data transfer

• Use stored procedures instead of ad-hoc queries

• Consider partitioning large tables

• Regularly monitor and maintain database health
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Q1. What is attrition and how do you handle it
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Q2. Team management problems
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Q3. Tell a scenario where you had trouble with an employee which was very unheard of and you were able to overcome by your management skills.
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Q1. Windows questions
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Q2. Network related things what you have done and then deep dive on that
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Q1. Salary and work timings clarification
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Q1. They will just check your basic knowledge on java and selenium
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Numerology and calculation based test held online.

Java based program test included 2 programs preparation within 1 hr