Network Basics – OSI & TCP/IP Models & IPv4 Addressing

These flashcards cover key concepts and details related to networking basics, OSI and TCP/IP models, and IPv4 addressing.

What governs all communications in a network?

Protocols.

What is the purpose of the Internet Engineering Task Force (IETF)?

To propose, publish, and manage RFCs for internet standards.

What does a network communication model help illustrate?

The interaction between multiple protocols in a layered stack.

What protocol governs the interaction between a web server and a web client?

Hypertext Transfer Protocol (HTTP).

What does Transmission Control Protocol (TCP) ensure?

The reliable delivery of information and manages flow control.

What is the main goal of using a layered model in network communication?

To assist in protocol design and ensure compatibility between different vendors.

Which OSI model layer is responsible for segmenting, transferring, and reassembling data?

Transport layer.

How does the OSI model layer structure differ from the TCP/IP model?

The TCP/IP model simplifies layers, combining some of the OSI layers for functionality.

What is a MAC address?

A unique physical identifier used at Layer 2 of the OSI model.

What is the range of IP addresses class A?

0 to 126.

What is reserved for the network ID in an IP address?

The first address on each segment.

What does the subnet mask inform a router?

How many bits are for the network and how many are for the host.

What role does Dynamic Host Configuration Protocol (DHCP) serve in a network?

Assigning IPv4 addresses to hosts in large networks.

What is CIDR notation used for?

CIDR notation is used to express an IP address and its associated network mask, indicating the number of bits allocated for the network part.

What is a common CIDR notation for a default subnet mask for a Class C IP address?

A common CIDR notation for a Class C IP address is /24, which provides 256 IP addresses (0-255). 255.255.255.0/24

Can CIDR notation represent more than one subnet?

Yes, CIDR notation can represent multiple subnets by using different prefixes to define subnet boundaries.

What are the three main classes of IP addresses?

The three main classes of IP addresses are Class A, Class B, and Class C.

What indicates the class type in an IP address?

The class type in an IP address is indicated by the first