TSYS|Total System Services Senior Devops Engineer Interview Questions and Answers

Scripts and basic topics

Q1. Client call one to one
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Q1. Salary discussion and relocation
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Q1. Diff btwn this and arrow in javascript
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The 'this' keyword in JavaScript refers to the current object, while the arrow function does not bind its own 'this'.
• The 'this' keyword in JavaScript refers to the object that is executing the current function.

• Arrow functions do not bind their own 'this' value, instead they inherit the 'this' value from the enclosing lexical context.

• Using 'this' in a regular function can lead to unexpected behavior, especially in neste...read more
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Q2. Diff btwn let, var, const
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let, var, and const are all used to declare variables in JavaScript, but they have different scopes and behaviors.
• let is block-scoped and can be reassigned, var is function-scoped and can be reassigned, const is block-scoped and cannot be reassigned

• Using let:

• let x = 10;

• x = 20; // valid

• Using var:

• var y = 5;

• y = 8; // valid

• Using const:

• const z = 15;

• z = 25; // error, cannot reassign const variable
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Q1. Explain Transite gatewat
Ans. 
Transit gateway is a service that enables customers to connect their VPCs and on-premises networks through a central hub.
• Transit gateway simplifies network architecture by allowing multiple VPCs to connect to it, reducing the need for complex peering relationships.

• It supports VPN connections, Direct Connect gateways, and inter-region peering.

• Transit gateway can also be used to connect on-premises networks to multiple V...read more
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Q2. What is VPC and explain this
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VPC stands for Virtual Private Cloud, a virtual network dedicated to your AWS account.
• VPC allows you to create a logically isolated section of the AWS Cloud where you can launch resources in a virtual network.

• You have complete control over your virtual networking environment, including selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways.

• VPC helps in improv...read more
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Q3. Gateway endpoint
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Q4. Transit gateway
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Q5. Kuber native architecture
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Q1. Asking about the linux questions like pipeline, grep, head commands
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Q2. SSL related questions
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Q3. Asked about the python experience
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Q4. Linux command for background running process/service
Ans. 
The Linux command for background running process/service is 'nohup'.
• The 'nohup' command is used to run a command immune to hangups and with output to a non-tty.

• It is often used to run long-running processes or services in the background.

• The syntax for using 'nohup' is: nohup command &

• The '&' symbol at the end of the command tells the shell to run the command in the background.

• Example: nohup python my_script.py &
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3 ques at time in coding round with mid level difficulty

Scripts and basic topics

Q1. Client call one to one
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Q1. Salary discussion and relocation
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