Cisco Network Engineer Mock Interview

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

Question 18 of 30

What is a NIC?

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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.

During an interview for a network engineering position at Cisco, you will be asked about the various hardware and software components of a network. Some of these will be very basic questions, while others may be more complex and detailed. This is an example of a simple one. Interviewers can ask these questions at any time during the interview. The best way to be prepared for these types of questions is to review the components of a network just before the interview so that they are fresh in your mind.

William Swansen

"A NIC is a Network Interface Card. It is sometimes known as a network adapter or ethernet card. It is a device installed in a computer that enables the computer to be connected to a network. Each NIC has a unique media access control, or MAC address, which helps identify the computer on a network."

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30Cisco 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?

Experience

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

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 you will use it in your job as a Cisco 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?

Competency

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?

Scenario Based

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 Cisco computer network?

Experience

Cisco Network Engineer Mock Interview

What is a NIC?

30Cisco 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 similar to ours here at Cisco?

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 you will use it in your job as a Cisco 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 Cisco computer network?

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