Dear Reader, Below are 3 questions based on network concepts. First question is related to speed of networks, while the last two are based on specific terms / technologies.

Question 1

Which of the below factors do not affect speed of internet in a computer in a LAN ?

1) Amount of internet usage by all LAN devices
2) Response of DNS servers
3) A non working website
4) None of the above

Answer : 3) A non working website.

Reason :

If more devices are using internet, obviously the bandwidth share of every device will be reduced. Similarly, if DNS (Domain Name Servers) are slow the websites appear to load slower. However, a non working website is the problem specific to that particular website and is not going to affect the speed of the internet in a LAN as a whole.

Question 2

Which of the following is false about multihoming ?

1) Improves speed of internet in a host machine
2) Needs additional network adapter to be installed on a host machine.
3) Decreases the reliability of applications using internet.
4) None of the above

Answer : 3) Decreases the reliability of applications using internet

Reason :

Multihoming is a concept where a system is fitted with additional ethernet adapter. However all the adapters are configured to use the same IP. Due to this redundancy, there is an increased reliability but not a speed (performance) improvement.

Question 3

Which of the following statements is not true regarding network hops ?

1) Lesser the network hops, more the speed of a connection
2) Lesser the network hops, more the reliability
3) More the network hops, lesser the network delay
4) None of the above

Answer : 3) More the network hops, lesser the network delay

Reason :

Lesser the number of hops, more the reliability and speed of connections. Hence increased number of hops actually raise network delays.