Network Engineer Mock Interview

Practice 30 Network Engineer interview questions covering routing protocols, network security, and troubleshooting scenarios.

Question 1 of 30

Please explain the important characteristics of computer networking.

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William Swansen

William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.

This is a general question the interviewer will ask early in the interview to begin the conversation to learn more about your qualifications and collect some information from you they can use later in the interview. This type of question allows you to start to move the interview in a positive direction.

William Swansen

"Some of the key characteristics of networking are:

Topology - This defines how the devices are arranged in the network, either physically or logically.
Protocol - The instructions or guidelines used to establish communication between devices on a network.
Medium - This is the transmission equipment used to move information across the network, consisting of either copper or fiber optic cables, or air, in the case of wireless communications via radio waves."

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Anonymous Answer

The important characteristics of computer networking are its reliability, usability, and security. A reliable network is always available to use. That way, users can depend on the network being up. A usable network is not slow and does not impact users while they are on the network. A secure network is protected from network attacks that can impact the reliability, usability, or performance of the network.

Stephanie's Feedback

You present strong content knowledge here, but I suggest personalizing your response by adding an example of how you've used computer networking in a professional capacity. The more specific the example, the better!

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30Network Engineer Interview Questions & Answers

Competency

1.Please explain the important characteristics of computer networking.

Competency

2.Can you discuss some of the terminologies commonly used in networking?

Competency

3.What are the main types of networks, ranked by their sizes?

Competency

4.Can you define the various types of internet connections?

Competency

5.What are the different ways data is moved across networks?

Experience

6.What are the different types of network topologies you've worked with, and what are their advantages?

Competency

7.Can you describe the OSI reference model, its layers, and their purpose?

Competency

8.Can you describe the differences between a hub, switch, and router?

Competency

9.What are TCP and UDP, and how do they differ from one another?

Competency

10.Can you explain the TCP/IP Model?

Competency

11.What are HTTP and HTTPS, and what port do each of these protocols use?

Competency

12.What is the function of a Firewall in a network environment?

Competency

13.Can you describe what a DNS is and the services it provides?

Competency

14.How does a Domain differ from a Workgroup?

Competency

15.Do you have experience working with Proxy Servers? If so, how do you use them to protect a computer network?

Competency

16.What are the IP classes that make up an IP address?

Competency

17.Is the IP address 127.0.0.1 a Class A IP?

Competency

18.What is a NIC?

Competency

19.What is the function of data encapsulation in transmitting information across the network?

Competency

20.What is a VPN? Are there different types of VPNs?

Competency

21.What are Ipconfig and Ifconfig, and how do they differ from each other?

Competency

22.Can you describe what a subnet mask is and how it is used in your job as a network engineer?

Competency

23.What is a point-to-point link, and when would you use this?

Competency

24.Can you describe Network Address Translation or NAT and the function it provides?

Experience

25.Are you familiar with anonymous FTP, and can you provide the use case for it?

Competency

26.What is a UTP cable, and what is the maximum length allowed for one of these?

Competency

27.What is a private IP address, and when would you use this?

Competency

28.What is a protocol you would use to send data from one network to another one?

Scenario Based

29.Can you describe some of the ways you would secure a computer network?

Experience

Network Engineer Mock Interview

Please explain the important characteristics of computer networking.

30Network Engineer Interview Questions & Answers

1.Please explain the important characteristics of computer networking.

2.Can you discuss some of the terminologies commonly used in networking?

3.What are the main types of networks, ranked by their sizes?

4.Can you define the various types of internet connections?

5.What are the different ways data is moved across networks?

6.What are the different types of network topologies you've worked with, and what are their advantages?

7.Can you describe the OSI reference model, its layers, and their purpose?

8.Can you describe the differences between a hub, switch, and router?

9.What are TCP and UDP, and how do they differ from one another?

10.Can you explain the TCP/IP Model?

11.What are HTTP and HTTPS, and what port do each of these protocols use?

12.What is the function of a Firewall in a network environment?

13.Can you describe what a DNS is and the services it provides?

14.How does a Domain differ from a Workgroup?

15.Do you have experience working with Proxy Servers? If so, how do you use them to protect a computer network?

16.What are the IP classes that make up an IP address?

17.Is the IP address 127.0.0.1 a Class A IP?

18.What is a NIC?

19.What is the function of data encapsulation in transmitting information across the network?

20.What is a VPN? Are there different types of VPNs?

21.What are Ipconfig and Ifconfig, and how do they differ from each other?

22.Can you describe what a subnet mask is and how it is used in your job as a network engineer?

23.What is a point-to-point link, and when would you use this?

24.Can you describe Network Address Translation or NAT and the function it provides?

25.Are you familiar with anonymous FTP, and can you provide the use case for it?

26.What is a UTP cable, and what is the maximum length allowed for one of these?

27.What is a private IP address, and when would you use this?

28.What is a protocol you would use to send data from one network to another one?

29.Can you describe some of the ways you would secure a computer network?

30.What is a common way hackers attempt to shut down an organization's network?