Network Engineer Interview Preparation Guide

Refine your Network Engineer interview skills with our 142 critical questions. These questions will test your expertise and readiness for any Network Engineer interview scenario. Ideal for candidates of all levels, this collection is a must-have for your study plan. Access the free PDF to get all 142 questions and give yourself the best chance of acing your Network Engineer interview. This resource is perfect for thorough preparation and confidence building.
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142 Network Engineer Questions and Answers:

1 :: What is network?

A network is a set of devices connected by physical media links. A network is recursively is a connection of two or more nodes by a physical link or two or more networks connected by one or more nodes.
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2 :: Explain Link?

At the lowest level, a network can consist of two or more computers directly connected by some physical medium such as coaxial cable or optical fiber. Such a physical medium is called as Link.

3 :: What is node?

A network can consist of two or more computers directly connected by some physical medium such as coaxial cable or optical fiber. Such a physical medium is called as Links and the computer it connects is called as Nodes.

4 :: Explain a gateway or Router?

A node that is connected to two or more networks is commonly called as router or Gateway. It generally forwards message from one network to another.

5 :: Explain point-point link?

If the physical links are limited to a pair of nodes it is said to be point-point link.
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6 :: Tell us multiple access?

If the physical links are shared by more than two nodes, it is said to be Multiple Access.

7 :: Describe the advantages of distributed processing?

☛ Security/Encapsulation
☛ Distributed database
☛ Faster Problem solving
☛ Security through redundancy
☛ Collaborative Processing

8 :: Tell me the criteria necessary for an effective and efficient network?

☛ Performance:
It can be measured in many ways, including transmit time and response time.
☛ Reliability:
It is measured by frequency of failure, the time it takes a link to recover from a failure, and the network's robustness.
☛ Security:
Security issues includes protecting data from unauthorized access and viruses.

9 :: What are the factors that affect the performance of the network?

☛ Number of Users
☛ Type of transmission medium
☛ Hardware
☛ Software

10 :: What factors that affect the reliability of the network?

☛ Frequency of failure
☛ Recovery time of a network after a failure
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