Networking Questions and Answers for Interview
131. What is NVT (Network Virtual Terminal)?
It is a set of rules defining a very simple virtual terminal interaction. The NVT is used in the start of a Telnet session.
132. What is a Multi-homed Host?
It is a host that has a multiple network interfaces and that requires multiple IP addresses is called as a Multi-homed Host.
133. 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.
134. What is OSPF?
It is an Internet routing protocol that scales well, can route traffic along multiple paths, and uses knowledge of an Internet's topology to make accurate routing decisions.
135. What is Proxy ARP?
It is using a router to answer ARP requests. This will be done when the originating host believes that a destination is local, when in fact is lies beyond router.
136. What is SLIP (Serial Line Interface Protocol)?
It is a very simple protocol used for transmission of IP datagrams across a serial line.
137. What is RIP (Routing Information Protocol)?
It is a simple protocol used to exchange information between the routers.
138. What is source route?
It is a sequence of IP addresses identifying the route a datagram must follow. A source route may optionally be included in an IP datagram header.
139. Define static routing ?
In Static routing routes are manually configured on the router by a network administrator.
140. What is a Dynamic Routing?
In Dynamic routing, routes are learned by using a routing protocol. Routing protocols will learn about routes from other neighboring routers running the same routing protocol. Example - OSPF, EIGRP, RIP.