10+ Site Reliability Engineer Interview Questions and Answers for Freshers

To monitor intermittent high response, use monitoring tools like Prometheus or Datadog. Troubleshoot by analyzing logs, identifying bottlenecks, and optimizing code.

• Set up monitoring tools like Prometheus or Datadog to track response times

• Analyze logs to identify patterns of high response times

• Use profiling tools to pinpoint bottlenecks in the code

• Optimize code to improve response times

To copy contents of a file to another file, you can use file handling methods in programming languages.

• Open the source file in read mode and the destination file in write mode

• Read the contents of the source file and write them to the destination file

• Close both files after the copying process is complete

Python program to remove whitespace, check if strings are anagram, and reverse a string.

• Use the replace() function to remove whitespace from a string.

• Use sorted() function to check if two strings are anagrams.

• Use string slicing to reverse a string.

Use 'find' command to fetch larger files in specific directory

• Use 'find' command with '-size' option to specify file size

• Example: find /path/to/directory -type f -size +100M

Implement rolling updates and blue-green deployments to apply security patches with minimal downtime.

• Utilize rolling updates to gradually apply security patches to different instances without taking the entire system offline.

• Implement blue-green deployments to switch traffic from the old version (blue) to the new version (green) seamlessly.

• Use automation tools like Ansible, Puppet, or Chef to streamline the patching process and reduce human error.

• Perform thorough testing in a...read more

Command to check free memory space

• Use the 'free' command to check free memory space

• The 'free' command displays the total, used, and free memory space in the system

• It also shows the amount of memory used for buffers and cache

• The 'free' command can be used with options like '-h' for human-readable output

NoSQL is a non-relational database that provides flexible schema and horizontal scalability, while SQL is a relational database with structured schema and vertical scalability.

• NoSQL databases are schema-less and can handle unstructured data.

• SQL databases use structured query language and have predefined schemas.

• NoSQL databases are horizontally scalable, allowing for easy distribution of data across multiple servers.

• SQL databases are vertically scalable, meaning they can handl...read more

To copy files to a remote machine, use a file transfer protocol like SCP or SFTP.

• Use SCP (Secure Copy) command to copy files between local and remote machines

• Example: scp /path/to/local/file username@remote:/path/to/destination

• Use SFTP (Secure File Transfer Protocol) for interactive file transfers

• Example: sftp username@remote, then use put command to upload files

To rename a file, use the 'mv' command in the terminal or use a file manager with a rename option.

• In the terminal, use the 'mv' command followed by the current file name and the new file name.

• Example: mv oldfile.txt newfile.txt

• In a file manager, right-click on the file and select the 'Rename' option.

• Enter the new file name and press Enter.

TCP/IP model is a networking protocol suite that defines how data is transmitted over a network.

• TCP/IP model consists of four layers: Application, Transport, Internet, and Link.

• Each layer has specific functions and protocols to ensure data transmission.

• Examples of protocols in TCP/IP model include HTTP, TCP, IP, and Ethernet.

• The model allows for reliable and efficient communication between devices on a network.