Network Administrator Interview Preparation Guide
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Network Administrator frequently Asked Questions in various Network Administrator job Interviews by interviewer. The set of questions here ensures that you offer a perfect answer posed to you. So get preparation for your new job hunting

105 Network Administrator Questions and Answers:

1 :: Who is network administrator?

Network administrator is responsible for the maintenance of computer hardware and software systems that make up a computer network including the maintenance and monitoring of active data network or converged infrastructure and related network equipment.
Network administrators are generally mid-level support staff within an organization and do not typically get involved directly with users. Network administrators focus on network components within a company's LAN/WAN infrastructure ensuring integrity. Depending on the company and its size, the network administrator may also design and deploy networks.

2 :: What is network management?

Network management is the operation, administration, maintenance, and provisioning (OAMP) of networked systems. Network management is essential to command and control practices and is generally carried out of a network operations center.

3 :: List the layers of the OSI reference model?

There are 7 OSI reference layers:
☛ Physical Layer
☛ Data Link Layer
☛ Network Layer
☛ Transport Layer
☛ Session Layer
☛ Presentation Layer
☛ Application Layer

4 :: Explain routers?

Routers can connect two or more network segments. These are intelligent network devices that store information in its routing table such as paths, hops and bottlenecks. With this info, they are able to determine the best path for data transfer. Routers operate at the OSI Network Layer.

5 :: Describe point to point link?

Anonymous FTP is a way of granting user access to files in public servers. Users that are allowed access to data in these servers do not need to identify themselves, but instead log in as an anonymous guest.

6 :: What is link?

A link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.

7 :: Explain backbone network?

A backbone network is a centralized infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels.

8 :: Define LAN?

LAN is short for Local Area Network. It refers to the connection between computers and other network devices that are located within a small physical location.

9 :: Define node?

A node refers to a point or joint where a connection takes place. It can be computer or device that is part of a network. Two or more nodes are needed in order to form a network connection.

10 :: Explain subnet mask?

A subnet mask is combined with an IP address in order to identify two parts: the extended network address and the host address. Like an IP address, a subnet mask is made up of 32 bits.