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

Command to list CPUs in Linux system

• Use the 'lscpu' command to list detailed information about CPUs

• Use the 'nproc' command to display the number of processing units available

• Use the 'cat /proc/cpuinfo' command to view information about each CPU core

Determine the power of a number based on its contiguous substring representation and analyze its properties.

• Definition of Power: The power of a number can refer to its representation as a contiguous substring, such as '123' being 123.

• Contiguous Substrings: For a number '1234', the contiguous substrings include '1', '12', '123', '2', '23', '3', '34', '4'.

• Power Calculation: The power can be calculated by evaluating each contiguous substring as an integer and applying a specific...read more

Command to check free disk space

• Use the 'df' command to check free disk space

• The '-h' option displays the output in human-readable format

• The '-T' option shows the filesystem type

• The '-x' option excludes specific filesystem types

• The '-t' option filters the output based on filesystem type

Upgrading EKS involves updating the control plane and worker nodes to ensure compatibility and access to new features.

• Check Current Version: Use the AWS CLI command `aws eks describe-cluster --name <cluster-name>` to find the current version of your EKS cluster.

• Upgrade Control Plane: Execute `aws eks update-cluster-version --name <cluster-name> --kubernetes-version <new-version>` to upgrade the control plane.

• Upgrade Node Groups: Update your managed node groups using `aws eks ...read more

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

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.

The OSI Model is a conceptual framework that standardizes the functions of a communication system into seven layers.

• The OSI Model stands for Open Systems Interconnection Model.

• It was developed by the International Organization for Standardization (ISO) in 1984.

• The model is divided into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and interacts with the layers above and below it.

• The model helps...read more