Networking is a process that fosters the exchange of information and ideas among individuals or groups that share a common interest. It may be for social or business purposes. Professionals connect their business network through a series of symbolic ties and contacts. Business connections may form due to an individual’s education, employer, industry or colleagues. For instance, a business network of Harvard Business School alumni may develop. Networking may also refer to the setting up and operation of a physical computer network
Computer networking involves connecting computers in the same building or office so users can readily communicate with other computers or devices. Switches connect multiple devices in one building on the same network. Computers, for instance, can connect to printers, fax machines, scanners and servers through a switch. Routers tie multiple networks together, such as when a computer connects to an internet router to access the web. Routers control the information going to and from computer networks through security software and programs.
Important Questions of Computer Networking – CCNA are Listed Bellow (Part-2)
1- What is Gateway-to-Gateway protocol?
Answer: It is a protocol formerly used to exchange routing information between Internet core routers.
2- What is NVT (Network Virtual Terminal)?
Answer: It is a set of rules defining a very simple virtual terminal interaction. The NVT is used in the start of a Telnet session.
Answer: It is a host that has a multiple network interfaces and that requires multiple IP addresses is called as a Multi-homed Host.
4- What is Kerberos?
Answer: It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorised access to files.
5- What is OSPF?
Answer: 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.
6- What is Proxy ARP?
Answer: 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.
7- What is SLIP (Serial Line Interface Protocol)?
8- What is RIP (Routing Information Protocol)?
Answer: It is a simple protocol used to exchange information between the routers.
9- What is source route?
Answer: 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.