Essential Network Devices, TCP and UDP ? (2)

What is the Essential Network Devices

Switch
Router

What is the Switch?

It connects devices within the same Local Area Network (LAN). It manages data traffic within a single home or office.

Where is the Switch operates at the OSI model Layers?

It operates at the Layer 2 of the OSI model. It uses MAC Addresses (the physical address) to determine which device is talking to which other device.

What is the meaning of word OSI?

The OSI (Open Systems Interconnection)

What is the OSI model?

is a theoretical framework consisting of seven layers, used to understand and standardize how computers communicate across networks.

What is the Router?

It connects two different networks, the most common example being the device that connects your local network to the Internet (the WAN). It performs the Routing process.

Where is the Router operates at the OSI model Layers?

It operates at the Layer 3 of the OSI model. It uses IP Addresses (the logical address) to decide the best path a packet must take from one network to another.

What is the meaning of word IP, and what is it?

IP (Internet Protocol) address is a unique numerical label assigned to every device connected to a computer network.

What is the TCP and UDP?

When you use the internet (watch a video, send a message, open a website), data must travel from one computer to another. That data doesn't go all at once it's broken into small pieces called packets.

make internet communication efficient, flexible, and reliable

TCP and UDP are rules (protocols) that define how those packets are sent and received. Think of them as two different delivery methods.

What is the meaning of word TCP?, and what is it?

TCP (Transmission Control Protocol)

is like sending a registered package It is reliable and careful. What TCP guarantees

TCP makes sure (4)?

How TCP works (simple steps)?

This is called a connection-oriented protocol.

When TCP is used?

Advantages and Disadvantages of TCP? (4)

what is the meaning of word UDP?, and what is it?

UDP (User Datagram Protocol)

UDP is like shouting a message or sending a postcard It is fast but not careful.

What UDP does NOT guarantee? (4)

It just sends data and hopes for the best. This is called a connectionless protocol.It just sends data and hopes for the best. This is called a connectionless protocol.

How UDP works (simple steps)?

This is called a connection-oriented protocol.

When UDP is used?

Advantages and Disadvantages of UDP? (4)