Network Security Analyst Interview Questions
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Network Security Analyst interview questions shared by candidates
They asked me about Linux OS.
4 Answers
There are two directly-connected switches. Assume that they communicate fine on the physical layer. Why can't two hosts with assigned addresses 192.168.100.5/30 and 192.168.100.50/30 communicate with each other? Also assume that network addresses can be used. How would you remedy this by swapping out only ONE of the devices on the network?
4 Answers↳
The hosts are on two different subnets. Replace one of the switches with a properly-configured router. Less
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the host which assign 192.168.100.5/30 and host 192.168.100.50/30 these subnet is not belong to same subnet Less
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The subnet being used only provides 2 useable address, .5 and .6 the .50 address is out of the range. If there are only switches and no router, swap out one switch with a router and re-configure the network addresses. Less
How many bits do you need for a subnet size.
3 Answers↳
Need to know subnetting off top of your head.
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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
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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 interview
1 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