Interview Questions on Networking, Part 2
What are the commonly used routing protocols?
Routers add entries to routing table with the help of routing protocols. The commonly used routing protocols are,
Routing Information Protocol(RIP):-
It is used to advertise the current status and information in the routing table, including the routes to the rest of the routers in every 30 seconds.
Open Shortest Path First(OSPF):-
It is used to determine the shortest path, otherwise known as the lowest cost path among the nodes of different networks.
What is a routing table?
A routing table contains the path information for data data packets to reach a particular inter-network. Basically this table consists of the following information,
Network ID, Subnet Mask, Gateway Address, Interface(port), and netric(hops or number of gaps between two internetworking devices).
Routers add entries to routing table with the help of routing protocols.
What is attenuation?
Attenuation is the degeneration or weakening of a signal over distance on a network cable. To avoid attenuation amplifiers or repeaters and short cables are used.
What is TCB(Transmission Control Block)?
A TCB is a complex data structure that contains informations about each connection.
What is silly window syndrome?
It is a problem that can affect TCP performance. This problem occurs when data are passed to the sending TCP entity in large blocks, but an interactive application on the receiving side reads only 1 byte at a time.
What is Beaconing?
The process that allows a network to self-repair networks problems is called Beaconing.
The stations on the network notify the other stations on the ring when they are not receiving the transmissions. Beaconing is used in Token ring and FDDI(Fibre Distributed Data Interface) networks.
