Network Engineer Interview Preparation Guide
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Network Engineer job test questions and answers guide. The one who provides the best answers with a perfect presentation is the one who wins the job hunting race. Learn Network Engineer and get preparation for the new job

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.
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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.
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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.
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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.
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7 :: Describe the advantages of distributed processing?

☛ Security/Encapsulation
☛ Distributed database
☛ Faster Problem solving
☛ Security through redundancy
☛ Collaborative Processing
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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.
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9 :: What are the factors that affect the performance of the network?

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