Top 47 Networking Interview Questions

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This is a protocol that provides a way for multiple computers on a common network to share a single connection to the Internet. If you know a production engineer or someone who has experience running interviews at Facebook or another big tech company, then that’s fantastic. linux network engineer But for most of us, it’s tough to find the right connections to make this happen. And it might also be difficult to practice multiple hours with that person unless you know them really well. As a result, we strongly recommend practicing with a peer interviewing you.

What is Linux and its types?

Linux is a Unix-like, open source and community-developed operating system (OS) for computers, servers, mainframes, mobile devices and embedded devices. It is supported on almost every major computer platform, including x86, ARM and SPARC, making it one of the most widely supported operating systems.

Network topology dictates what media you must use to interconnect devices. It also serves as a basis on what materials, connectors, and terminations that is applicable for the setup. The Network layer is responsible for data routing, packet switching, and control of network congestion. VPN means Virtual Private Network, a technology that allows a secure tunnel to be created across a network such as the Internet. For example, VPNs allow you to establish a secure dial-up connection to a remote server. Network Topology refers to the layout of a computer network. It shows how devices and cables are physically laid out, as well as how they connect.

How do you refer to the parallel port where devices such as printers are connected?

To secure a network, there needs to be proper security software, devices, and protocols in place. The list is endless, but I have listed the most common ones below. You would highly secure the network if all of these were combined. When information needs to be broken down into smaller, more manageable bits before being sent across the network, it is called data encapsulation. The source and destination addresses, as well as parity checks, are included in this process. This helps ensure that the information remains intact during transmission over the network. A point-to-point connection is a cable/fiber connecting two devices on a network without using a network device .

  • This is equal to340 trillion trillion trillion IP addresses.
  • This can help the interviewer determine whether you have experience with performing routine maintenance on a network.
  • Likewise, if one side is set to 100/full, make sure the other side is also set to 100/full.
  • It can also provide other critical network information to clients like subnet mask, DNS, default gateway, and other network-related config parameters.
  • It is developing a P2P (point-to-point) connection between all the devices of the network.

The pwd command is short for print working directory command. This serves as an alternative to minimizing and maximizing different windows on the current desktop.

Expert Network Engineer Interview Questions

Log in as root user if you are not logged in as root using su – command. Soft links are used to create links between directories. If in case the original file is deleted then a soft link of that file is useless. $ free –m // this is the simplest command where it will show the memory usage in MB.

  • One highly possible reason for getting different results from what seems to be the same command has something to do with case sensitivity issues.
  • If you want to access internet on these private IPs, you must have to use proxy server or NAT server.
  • OSPF, or Open Shortest Path First, is a link-state dynamic routing protocol.
  • Universally Administered AddressUAA is the most used type of MAC address.
  • Focus on what makes you unique from other candidates and highlight any certifications or training you have completed.

It enables the error-free transfer of data from one node to another node. It is used for transferring the data from one node to another node. A protocol is a set of rules which is used to govern all the aspects of information communication. A public IP address is an address taken by the Internet Service Provider which facilitates you to communication on the internet. The first network operating system was Novel NetWare released in 1983.

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Responses from the distant server are returned to the local application. The network redirector program makes remote files and resources appear as local files and resources on the client machine, allowing them to be used and handled similarly. The demand for Linux is increasing day by day and it opens many doors of jobs for you. The set of above mentioned 60 Linux interview questions and answers would act as a last minute interview preparation guide for you. These questions are useful for the fresher as well as the experienced candidates. So, no need to worry about cracking the Linux interview.

linux interview questions for network engineer

Interview Questions on NetworkingNetworking is a vast subject and is ever expanding. Networking questions are common to all the interviewing candidates of IT no matter he is a System Admin, a Programmer, or deals in any other branch of Information Technology. Which in turn means that market demands, everyone should have the basic knowledge of Networks and Networking. Most of the computer in this century is on network of one kind or other. A computer not attached to network is nothing more than a Metal. Network means connection of two or more computers using protocols (viz., HTTP, FTP, HTTPS, etc) in such a way that they tends to serve information as and when required.

What command would you use to check how much memory is being used by Linux?

In the case of Switching Desktops, you can create discrete virtual desktops to run programs. This page, CATs has prepared to help you for each level of a Network Engineering Interviews.

How do I prepare for a network engineer interview?

  1. What is a network typology?
  2. What is your experience as a Network Engineer?
  3. How do you troubleshoot network issues?
  4. What is a network?
  5. What is a node?
  6. What is a router?
  7. What is the OSI reference model?
  8. What are the layers contained in the OSI reference model?

This means that if you rename or move the original file, the link will not break since the link is for the file itself, not the path where the file is located. A Metropolitan Area Network or MAN is consisting of a computer network across an entire city, college campus, or a small region.

How do you check if a particular service in running?

In this setup, the data transmit pin of one cable is connected to the data receive pin of the other cable, and vice versa. Ping is a utility program that allows you to check connectivity between network devices on the network.

  • The Domain Name System is the second type supporting program that is used by other programs such as to find the IP address of an e-mail recipient.
  • Zombie processes do not take up system resources, except for the tiny amount of space they use up when appearing in the process id table.
  • In this case, it’s 10Mbps, and Base refers to the baseband.
  • There are two commands that can be used to delete a directory in Linux.
  • Soft links are used to create links between directories.
  • Threads have their own stack, but share text, data and heap with the process.