Networking and Protocols Overview

These flashcards cover key concepts related to networking, device roles, protocols, and security measures.

What is a Host in networking?

A Host is any computer that is connected to a network and participates in network communication.

What is the purpose of an IP Address?

An IP Address identifies the host and the network to which the host is attached.

What are Servers in the context of networking?

Servers are computers that provide information, such as email, to other end devices on the network.

What are End Devices?

End Devices are individual devices on a network that use the address of the destination to initiate communication.

What are Intermediary Devices?

Intermediary Devices connect individual end devices to the network and ensure data flow across the network.

What are the four criteria for choosing network media?

Maximum distance, environmental considerations, data transmission speed, and cost.

What is a Network Interface Card (NIC)?

A NIC physically connects an end device to the network.

What distinguishes a Local Area Network (LAN) from a Wide Area Network (WAN)?

LAN provides access within a small geographical area, while WAN connects multiple LANs over larger geographic distances.

What is the Internet?

The Internet is a collection of worldwide interconnected networks.

What is an Intranet?

An Intranet is a private connection of LANs and WANs belonging to an organization, accessible only to authorized personnel.

What does DHCP stand for and what is its function?

Dynamic Host Configuration Protocol; it automatically assigns IP addresses and other network parameters to devices.

What is the definition of 'Quality of Service' (QoS) in networking?

QoS is ensuring reliable delivery of content to users while preventing congestion in the network.

What is the function of the Transport Layer?

The Transport Layer facilitates logical communication between applications on different hosts.

What protocol is primarily used for reliable data transfer?

TCP (Transmission Control Protocol) is used for reliable data transfer.

What is the role of ICMP in networking?

ICMP is used for sending error messages and operational information in networking.

What does the Address Resolution Protocol (ARP) do?

ARP is used to map an IPv4 address to a MAC address in a local network.

What are the benefits of using Firewall in network security?

Firewalls protect networks from outside threats by filtering incoming and outgoing traffic based on specified rules.