Networking Basics Quiz

A system that uses only two digits (0 and 1) to represent numbers.

Each digit in a binary number has a specific value based on its position within the number.

A binary number is made up of a sequence of 32 bits, divided into four 8-bit sections called octets.

Each octet in an IPv4 address is represented by a decimal number between 0 and 255.

The decimal (base-10) numbering system uses digits from 0 to 9.

A sequence of 0s and 1s that represents a specific value in the binary system.

A group of 8 bits.

The value of a digit in a number is multiplied by a power of 10 based on its position.

A unique identifier assigned to a network interface card (NIC) that allows devices to communicate on a local network.

The first 24 bits of a MAC address that identifies the manufacturer of the network card.

The last 24 bits of a MAC address that uniquely identifies a specific network card within a vendor's product line.

The process of grouping devices together on a local network (LAN) so they can communicate with each other.

A network where devices share a common physical connection, allowing communication between them.

A network that extends beyond a local area, allowing communication between devices over a wider geographical range.

The system of assigning unique addresses to devices on a network, allowing them to be located and communicated with.

The range of IP addresses in Class C is from 192.0.0.0 to 223.255.255.255. This class utilizes 24 bits for the network portion and the remaining 8 bits for host addresses, allowing for a maximum of 254 hosts per network.

Class D IP addresses are reserved for IP multicast, a technology used to send data to multiple recipients at once.

Class E IP addresses are designated for experimental purposes and are not currently used for standard internet communication.

A network address (all zeros) and a broadcast address (all ones) are reserved within each subnet, thereby reducing the usable host addresses. Therefore, the number of usable host addresses is calculated as 2^(number of host bits) - 2.

Dotted decimal notation is a method of representing IP addresses using four decimal numbers separated by periods. This notation makes it easier for humans to read and understand IP addresses.

A 32-bit address that is made up of a network portion and a host portion.

A method for identifying the network and host portions of an IPv4 address. Each bit in the subnet mask is compared to the corresponding bit in the IP address to determine whether it belongs to the network part or the host part.

ANDing is a bitwise operation that combines two binary numbers according to a specific rule. In the context of subnet masks, ANDing is used to determine the network and host portions of an IPv4 address by comparing the subnet mask to the IPv4 address.

A simpler notation for representing a subnet mask. It represents the number of bits set to 1 in the subnet mask, starting from the most significant bit.

The first part of an IPv4 address that identifies the network to which a device belongs.

The second part of an IPv4 address that identifies a specific device on a network.

A method to represent an IPv4 address and its subnet mask in a combined form. The prefix length is appended to the IPv4 address using a forward slash.

The practice of dividing a large network into smaller, manageable subnetworks.

An IP address range that identifies all the devices within a specific subnetwork.

The highest IP address that can be used within a subnetwork.

IPv4 addresses were previously categorized into classes A, B, C, D, and E based on their network size and address range. Each class had specific rules defining the number of network and host bits within the address.

Classful addressing was inefficient as it wasted many addresses, leading to its replacement with classless addressing. Classless addressing allows for more flexible allocation and utilization of IP addresses by using variable network mask lengths.

The Internet Assigned Numbers Authority (IANA) oversees the distribution of IP addresses. They delegate address blocks to Regional Internet Registries (RIRs), which then allocate them to ISPs. These ISPs further distribute IP addresses to smaller ISPs and organizations.

The total number of IPv6 addresses possible is 2^128, which is a huge number, ensuring a vast address space.