QUICK HEAL TECHNOLOGIES Technical Support Engineer Interview Questions and Answers

Q1. What is shell in linux?
Ans. 
Shell in Linux is a command-line interpreter that allows users to interact with the operating system by executing commands.
• Shell is a program that takes commands from the keyboard and gives them to the operating system to perform.

• It can also be used to automate tasks by writing scripts.

• Common shells in Linux include Bash, Zsh, and Ksh.

• Shell scripting allows users to write programs that can be executed by the shell.

• Exam...read more
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Q2. What are the different types of joins
Ans. 
Different types of joins include inner join, outer join, left join, and right join.
• Inner join: Returns rows when there is a match in both tables

• Outer join: Returns all rows when there is a match in one of the 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
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Q1. How to tune a sql query?
Ans. 
Tuning a SQL query involves optimizing its performance by adjusting various factors.
• Identify slow-performing queries using tools like SQL Profiler or Execution Plan.

• Optimize query structure by using appropriate indexes and avoiding unnecessary joins.

• Consider rewriting the query to use more efficient techniques like subqueries or CTEs.

• Update statistics and ensure database indexes are up to date.

• Limit the number of rows ...read more
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Q2. How to find errors in log files in linux
Ans. 
Errors in log files in Linux can be found by searching for keywords, timestamps, and error codes.
• Use 'grep' command to search for specific keywords or error codes in log files

• Look for timestamps to identify when errors occurred

• Check for any error messages or warnings that may indicate issues

• Use 'tail' command to view the end of log files for recent errors

• Consider using 'journalctl' command for system logs in systemd-ba
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Q1. What is shell in linux
Ans. 
Shell in Linux is a command-line interpreter that allows users to interact with the operating system by executing commands.
• Shell is a program that takes commands from the keyboard and gives them to the operating system to perform.

• It can also be used to automate tasks by writing scripts.

• Common shells in Linux include Bash, Zsh, and Ksh.

• Examples of shell commands include ls (list files), cd (change directory), and mkdir
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Q2. What are the different types of joins
Ans. 
Different types of joins include inner join, outer join, left join, and right join.
• Inner join: Returns rows when there is a match in both tables

• Outer join: Returns all rows when there is a match in one of the 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
Answered by AI
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Q1. How to tune a sql query?
Ans. 
Tuning a SQL query involves optimizing its performance by adjusting various factors.
• Identify slow performing queries using tools like SQL Profiler or Execution Plan.

• Optimize query structure by using appropriate indexes and avoiding unnecessary joins.

• Consider rewriting the query to use more efficient techniques like subqueries or CTEs.

• Update statistics on tables involved in the query to ensure accurate query execution p...read more
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Q2. How to find errors in log files in linux
Ans. 
Errors in log files in Linux can be found by searching for keywords, timestamps, and error codes.
• Use 'grep' command to search for specific keywords or error codes in log files

• Look for timestamps to identify when errors occurred

• Check for any error messages or warnings that may indicate issues

• Use 'tail' command to view the end of log files for recent errors

• Consider using 'journalctl' command for system logs in systemd-ba
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Q1. Support Role Questions 1) Like explaining a case which was done in your previous role and experience
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Q2. Questions on Javascript
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Q1. Technical Interview questions on Javascript, HTML, CSS and behavioural
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Q1. Manager Questions based on Position and previous work experience.
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Q1. Most of the questions were scripting related
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Q2. There were few questions regarding ServiceNow Core functionalities
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Q1. The Questions were asked about scripting and debugging
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Q1. Questions were asked regarding servicenow scripting and functionalities
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Q1. It was an managerial round where they evaluate your behaviour skills and attitude
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Q1. Salary discussion and onboarding process
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Mcq based on javascript linux sql

Q1. Tell me about yourself
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Q2. Your tech skills
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Q3. About sql and javascript
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Q1. Questions regarding CV Backround
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First round include mcq related sql ,linux

Q1. It is related to my project it was easy
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Q2. Question about join in sql
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Q1. Service now question bussines rule etc
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Q1. Behaviour question like why service now
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