Question

Which of these are NOT used in IPv4 addressing?

Answer 1

Hexadecimal digits are NOT used in IPv4 addressing. Option C is the answer.

Step-by-step explanation:

IPv4 addresses are composed of four sets of decimal numbers separated by dots (e.g., 192.168.0.1). Each set represents an octet, and each octet ranges from 0 to 255. IPv4 uses a 32-bit addressing scheme, and the address is represented in dotted-decimal format for human readability. Hexadecimal digits (0-9 and A-F) are commonly used in IPv6 addressing, where addresses are represented in eight groups of four hexadecimal digits separated by colons. However, IPv4 exclusively uses decimal digits for addressing, making it distinct from IPv6 in this aspect.

Understanding the characteristics of IPv4 and IPv6 addressing is crucial for network administrators and IT professionals managing and configuring network infrastructure.

Option C is the answer.

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Complete Question

Which of these are NOT used in IPv4 addressing?

IPv6 addresses

MAC addresses

Hexadecimal digits

CIDR notation.

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Answer 2

Step-by-step explanation:

IPv4 addressing uses a 32-bit address space, which consists of certain standard elements. However, instead of listing the components that are NOT used in IPv4 addressing, I'd like to inform you about the key components that are used, which are:

1. Dotted-decimal notation: IPv4 addresses are often represented in dotted-decimal notation, where each byte of the address is written in decimal form and separated by a period (e.g., 192.0.2.1).

2. Network ID: A part of the IP address that represents the network to which a host belongs. The network ID is defined by the subnet mask.

3. Host ID: A part of the IP address that represents a specific host within a network. The host ID must be unique within the same network.

4. Subnet mask: A 32-bit value that allows routers to determine the network portion and the host portion of an IPv4 address (e.g., 255.255.255.0).

5. Network classes: IPv4 addresses are divided into five classes (A, B, C, D, and E) based on the first few bits of the address, intended for different sizes of networks and specific purposes.

Any elements that do not fit within the above-mentioned concepts are likely NOT used in IPv4 addressing.