eClinicalWorks Technical Support Engineer Interview Questions, Process, and Tips

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 ?
Ans. 
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
Ans. 
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
Ans. 
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
Ans. 
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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Q1. Sql basic optimization
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Q2. Java exception and oops
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Q1. What is telnet,ping and sql
Ans. 
Telnet is a network protocol used to connect to remote devices, ping is a network utility used to test connectivity, and SQL is a language used for managing databases.
• Telnet is a protocol that allows you to connect to a remote device over a network.

• Ping is a utility used to test the reachability of a host on an IP network.

• SQL (Structured Query Language) is a language used for managing and querying databases.

• Examples: T...read more
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Q1. Hr interview had basic sql and network based questions
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Q1. Detailed sql , networking and java related questions
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Q1. Basic questions related to you and your interests
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