CommVault Technical Support Specialist Interview Questions and Answers

Q1. Explain OSI model and working of each layer?
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• Layer 1 (Physical): Deals with physical connections and data transmission. Example: Ethernet cables.

• Layer 2 (Data Link): Manages data transfer between devices on the same network. Example: MAC addresses.

• Layer 3 (Network): Handles routing and forwarding of data packets. Example: IP address...read more
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Q2. What is the port used for HTTP?
Ans. 
Port 80 is used for HTTP, which is the protocol used for transmitting web pages over the internet.
• Port 80 is the default port for HTTP

• HTTP stands for Hypertext Transfer Protocol

• Other common ports include 8080 for alternative HTTP port
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Q1. What are joins in sequel and their types
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• INNER JOIN returns rows when there is at least one match in both tables

• LEFT JOIN returns all rows from the left table and the matched rows from the right table

• RIGHT JOIN returns all rows from the right table and the matched rows from the left table

• FU...read more
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Q2. What are DML commands?
Ans. 
DML commands are Data Manipulation Language commands used to manage data in a database.
• DML commands include INSERT, UPDATE, DELETE, and SELECT.

• INSERT is used to add new rows of data into a table.

• UPDATE is used to modify existing data in a table.

• DELETE is used to remove rows of data from a table.

• SELECT is used to retrieve data from a database.
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Logical reasoning, patterns,

Will have go through common apti test.

Q1. Well discussion on technical topics.
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Q1. Dicussion about Salary and other
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Sometime it is taken

Q1. It related to product
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Q1. Salary discussion
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