Frequently Asked Networking Interview Questions Part – 6

1.What is mesh network?

A network in which there are multiple network links between computers to provide multiple paths for data to travel.

2.What is difference between baseband and broadband transmission?

In a baseband transmission,the entire bandwidth of the cable is consumed by a single signal. In broadband transmission,signals are sent on multiple frequencies,allowing multiple signals to be sent simultaneously.

3.What is packet filter?

Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets meeting some criterion are forwarded normally. Those that fail the test are dropped.

4.What is traffic shaping?

One of the main causes of congestion is that traffic is often busy. If hosts could be made to transmit at a uniform rate,congestion would be less common. Another open loop method to help manage congestion is forcing the packet to be transmitted at a more predictable rate. This is called traffic shaping.

5.What is multicast routing?

Sending a message to a group is called multicasting,and its routing algorithm is called multicast routing.

6.What is Kerberos?

It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.

7.What is passive topology?

When the computers on the network simply listen and receive the signal,they are referred to as passive because they don’t amplify the signal in any way. Example for passive topology – linear bus.

8.What are the advantages of Distributed Processing?

a. Security/Encapsulation
b. Distributed database
c. Faster Problem solving
d. Security through redundancy
e. Collaborative Processing

9.Name the factors that affect the reliability of the network?

a. Frequency of failure
b. Recovery time of a network after a failure

10.When a switch is said to be congested?

It is possible that a switch receives packets faster than the shared link can accommodate and stores in its memory,for an extended period of time,then the switch will eventually run out of buffer space,and some packets will have to be dropped and in this state is said to congested state.