Mastering IP Addressing: Top 50 Interview Questions and Answers

In the ever-evolving world of computer networks, a solid understanding of IP addressing is crucial for any aspiring network professional. Whether you’re preparing for an interview or simply seeking to enhance your knowledge, this comprehensive guide will equip you with the tools to tackle the toughest IP addressing questions with confidence.

Understanding IP Addressing Fundamentals

Before we delve into the specific questions, let’s lay the groundwork by exploring the basics of IP addressing:

  • IP Address: An Internet Protocol (IP) address is a unique numerical identifier assigned to every device connected to a network. It serves as the logical address used for communication over the internet or a local network.

  • IPv4 and IPv6: IPv4 (Internet Protocol Version 4) is the most widely used version, employing a 32-bit address space. IPv6 (Internet Protocol Version 6) is the successor, designed to accommodate the growing demand for IP addresses with its 128-bit address space.

  • Classful and Classless Addressing: Classful addressing divides the IP address space into predefined classes (A, B, C, D, and E), while classless addressing, also known as CIDR (Classless Inter-Domain Routing), allows for more efficient allocation of IP addresses.

  • Subnet Masking: A subnet mask is a 32-bit number that separates the network portion from the host portion of an IP address, enabling the creation of smaller networks (subnets) within a larger network.

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Top 50 Networking Interview Questions and Answers | Networking Interview Preparation | Edureka


What is IP address questions and answers?

IP address is an network layer protocol address for a host in a TCP/IP network. What is the use of an IP address? IP address is used to uniquely identify each host in a network. IP address is needed in order to communicate with other hosts in the network using the TCP/IP suite of protocols.

What are the 2 parts of an IP address used on computer networks?

An IP address has two parts: the network ID, comprising the first three numbers of the address, and a host ID, the fourth number in the address. So on your home network — 192.168. 1.1, for example – 192.168. 1 is the network ID, and the final number is the host ID.

What 2 ways can IP addresses be assigned?

You can assign IP addresses statically, which means you manually allocate an IP address to a device. You normally see this with servers because you want the server address to stay constant. IP addresses can also be assigned dynamically, where a DHCP server will assign IP addresses to devices as they join the network.

What are the two types of IP addresses that can be located?

Every individual or business with an internet service plan will have two types of IP addresses: their private IP addresses and their public IP address. The terms public and private relate to the network location — that is, a private IP address is used inside a network, while a public one is used outside a network.

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