There are only 13 dns root name servers in the world located in the different countries . Dns is used to resolve the domain to the ip addresses. So if terrorists makes all the Dns root name servers crash simultaneously then Dns servers will not be able to resolve the domain to the ip address. So after small amount of time Dns look ups will be failing due to the crash, then after an hour or so more numbers of Dns look ups will fail and after 24 hours most of the Dns look up will fail. You can only… [...]

Answered: Andrew S. Tanenbaum Edition 5th Exercise 7 Question 1 (Page No. 759)

DNS name, IP address, and Ethernet address are the three distinct and worldwide unique identifiers for business computers [...]

Answered: Which utilization formula to use and why?

WS=(1+2a) a=Tp/Tt Tp=2s Tt=4*8*1024/10*8*10^6=0.0004 Ws=1+2(5000)=10001=15 bit [...]

Answered: Suppose an IP packet has been fragmented. Then which of the following is a set of fragments?

every fragment should be dvisible by 8 except last fragment so c is answer [...]

Answered: NIELIT 2019 Feb Scientist D - Section A: 11

If we take four letters from the word CONSIDERATION i.e OSRT then we can form only one word – SORT then C is the correct option. [...]

Answered: NIELIT 2019 Feb Scientist D - Section A: 8

we will reverse the digits of every number and the middle number after reversing will be – 394 So correct answer is (D) [...]

Answered: NIELIT 2017 OCT Scientific Assistant A - Section A: 54

Answer (B) 18 cost price of 45 limbs =50 RS Selling price of limbs =40 RS(20 % loss on Cost price) women purchase 45 limbs of RS 50 means 9 limbs of RS 10 Without profit she sell 18 limbs of 20RS with 20 % profit she sell 18 limbs of 24 Rs [...]

Answered: NIELIT 2017 DEC Scientist B - Section A: 43

Option D. scientists will never fully understand how DNA functions. [...]

Answered: NIELIT 2017 DEC Scientist B - Section A: 22

Option C. human labour has dignity and value. [...]

Answered: NIELIT 2017 DEC Scientist B - Section A: 24

Option A. Poo Zat Poo, Tim $\Rightarrow$ Eat Good Mangoes …...(1) Sim Poo Kit $\Rightarrow$ Purchase Good sweets ……..(2) From (1) and (2) we can clearly say that Poo $\Rightarrow$ Good [...]

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