FIS Senior Devops Engineer Interview Questions and Answers

It was easy 2 question hackerrank exam

Q1. What is sql join?
Ans. 
SQL join is used to combine rows from two or more tables based on a related column between them.
• SQL join is used to retrieve data from multiple tables based on a related column.

• Types of SQL joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;
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Q2. Explain CORS and its importance
Ans. 
CORS stands for Cross-Origin Resource Sharing and is a security feature that allows or restricts resources on a web page to be requested from another domain.
• CORS is important for security reasons as it prevents malicious websites from making unauthorized requests to a different domain.

• It allows servers to specify who can access their resources by setting appropriate HTTP headers.

• CORS is essential for enabling cross-ori...read more
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Q3. Explain your project
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Q1. What makes you believe that this job is suitable for you?
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Q1. What are the issues you faced ink8s
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Q2. Kubernetes architeachture
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Q3. What ways torxpose the application
Ans. 
Exposing the application can be done through API Gateway, Load Balancer, or directly through public IP.
• Use API Gateway to expose RESTful APIs securely

• Utilize Load Balancer for distributing traffic across multiple instances

• Expose the application directly through a public IP address

• Implement security measures such as SSL certificates and firewalls
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Q1. What is problem management
Ans. 
Problem management is the process of identifying, analyzing, and resolving recurring issues to minimize their impact on the system.
• Problem management aims to prevent incidents from occurring by addressing their root causes.

• It involves documenting and tracking problems, analyzing their patterns, and implementing corrective actions.

• Examples of problem management activities include trend analysis, root cause analysis, and...read more
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Q2. Few Linux base questions
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Q1. How to regain a deleted branch in git?
Ans. 
To regain a deleted branch in git, use the reflog and checkout commands.
• Use 'git reflog' to find the commit hash of the deleted branch

• Run 'git checkout -b ' to recreate the branch
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Q2. Command to list all hosts of Ansible inventiory.
Ans. 
The command to list all hosts of Ansible inventory is 'ansible-inventory --list'.
• Use the 'ansible-inventory' command

• Add the '--list' option to list all hosts

• The command should be run from the command line
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