Network security engineer Interview Questions
256Network Security Engineer interview questions shared by candidates
How many bits do you need for a subnet size.3 Answers
Need to know subnetting off top of your head.
The minimum addresses needed is 2 bits for 4 addresses 2^(# of addresses) = 2^2 which used for pint to point links. Max addresses can go as much as class A IP address /8 so for maximum bits is 32-8 = 24 bit Less
If number of addreses required in a subnet is "N" , then you need 2 more (network and bcst addreses) in addition to "N". So "N+2" is rounded of to Next 2 to the power . For e.g if we need 64 addresses in a subnet then , 66 rounded to next 2 to the power is is 2**7 ie 128. so number of bits required is 7. Less
I was asked questions on the networking basics and also certain topics related to the network security. Questions were asked on small things like how does a mail pass or how does a computer boot up to check the in-depth technical knowledge. Also various questions were asked on port nos and protocol nos and some questions related to Linux basics . Lastly some personal questions to end the interview1 Answers
Learning the course module of CCNA will be of good use for cracking the interview. Doing a certification in the same would be an added advantage. Also Google the most famous questions or most frequently asked questions for this job role. Less