CSG International Senior Technical Support Analyst Interview Questions and Answers

Q1. How does internet works
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Q2. HTTP codes SQL troubleshooting
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Q1. SQL python java
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Q1. Salary negotiations
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Q2. Work shifts questions
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Q1. Write a SQL join query
Ans. 
A SQL join query combines rows from two or more tables based on a related column between them.
• Use keywords like INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL JOIN to specify the type of join

• Specify the columns to join on using ON keyword

• Include the table names and column names in the query
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Q2. What is telnet ?
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Telnet is a network protocol used to access and manage devices remotely over a network.
• Telnet allows users to connect to a remote device or server using a command-line interface.

• It is commonly used for troubleshooting network issues, configuring devices, and accessing remote servers.

• Telnet operates on port 23 and transmits data in plain text, making it less secure compared to SSH.

• Example: telnet 192.168.1.1 23
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Q3. What are vpns and working
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VPNs are Virtual Private Networks that allow users to securely access a private network over a public network.
• VPNs encrypt data to ensure privacy and security

• They can be used to access region-restricted websites or bypass censorship

• Common VPN protocols include OpenVPN, L2TP/IPsec, and IKEv2
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Q1. How to do technical troubleshooting
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Technical troubleshooting involves identifying, isolating, and resolving technical issues to ensure systems are functioning properly.
• Identify the problem by gathering information from the user or system logs

• Isolate the issue by testing different components or configurations

• Resolve the problem by applying solutions based on the root cause

• Document the troubleshooting process and solution for future reference
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Q2. Write left join query
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A left join query combines rows from two tables based on a related column, including all rows from the left table.
• Use the LEFT JOIN keyword in your query

• Specify the columns you want to select from both tables

• Specify the join condition using ON clause

• Example: SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2.id
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Few Technical bits too apart from aptitude

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Q1. Basic Networking Questions and cse topics
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Q1. About Projects and Personal Questions
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Q1. Few linux commands
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Q2. Explain few, Any command for example
Ans. 
Some common commands for technical support engineers include ping, ipconfig, and tracert.
• Ping: Used to test the reachability of a host on an IP network.

• Ipconfig: Displays all current TCP/IP network configuration values.

• Tracert: Shows the route that packets take to reach a specified destination.
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Q1. Tell me about yourself and past experiences
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Q1. Linux environment, hardware issues, navigation in linux, logs.
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Q1. Discussion about past experience and current roll
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Q1. About projects which I have worked on hybris
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Q2. Tools in hybris used
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Hybris uses various tools for development and support tasks.
• Eclipse IDE for development

• Hybris Administration Console for configuration

• HAC for monitoring and troubleshooting

• Ant for building and deploying

• Jenkins for continuous integration
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Q1. What is your expected salary?
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Q2. Are you willing to relocate?
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Q1. Basic C/C++ knowledge
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Q2. Which are not Object Oriented Languages?
Ans. 
Non-object oriented languages do not support the concept of objects and classes.
• C

• COBOL

• Fortran

• Pascal
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