deVops pathshala Blog – Notes for Me & You

  🔹 Linux Networking – Basic to Advanced Questions ✅ Basic Level 1.What is the difference between IP address, Subnet mask, and Gateway? 2.How do you check your system’s IP address in Linux? (commands) 3.Difference between ifconfig and ip addr command. 4.How do you check active network connections in Linux? 5.What is the difference between TCP and UDP? Give examples. 6.How to test connectivity between two systems? (ping, telnet, nc). 7.What is the use of /etc/hosts file in Linux? 8.What is the difference between public IP and private IP? 9.How do you check open ports on a Linux system? ✅ Intermediate Level 10.What is the difference between switch, router, and bridge in networking? 11.What is DNS? How do you check DNS resolution in Linux? 12.Explain the difference between static IP and DHCP. 13.What is ARP? How to check ARP table in Linux? 14.What is the use of /etc/resolv.conf file? 15.How do you trace the path packets take to a destination? 16.What is netstat command? Why is it re...

  1. Basic Level EC2 Interview Questions ये वो सवाल हैं जो किसी भी fresher या beginner से ज़रूर पूछे जाते हैं। 1.What is Amazon EC2? 2.What are the benefits of using EC2? 3.What is the difference between EC2 and a physical server? 4.What are EC2 instance types? Name a few. 5.What is an AMI (Amazon Machine Image)? 6.How do you launch an EC2 instance? 7.What is the difference between On-Demand, Reserved, and Spot Instances? 8.What is the difference between EBS and Instance Store? 9.What is Elastic IP in EC2? 10.What is the default limit of EC2 instances per region? 11.Can we stop and restart a Spot Instance? 12.How to connect to EC2 instance using SSH? 13.What is Key Pair in EC2? 14.What is the difference between public and private IP? 15.What is the difference between rebooting and stopping an EC2 instance? 2. Intermediate Level EC2 Interview Questions ये तब पूछे जाते हैं जब interviewer देखना चाहता है कि आपको practical और configuration का knowledge है। 16.What is the difference betw...