Networking Devices

Question 1

in sits simplest form, what is a host?

Answer 1

Hosts are ANY device which Sends Or receives traffic

Question 2

Name 5 different examples of Hosts

Answer 2

Computers, laptops, phones, printers, servers, cloud servers are hosts
Also any Internet of Things (IOT) device is considered a host
TVs, Smart Watches, Smart Fridges, Smart Lights, Thermometers, anything that sends or receives traffic over a network is considered a host

Question 3

what is a “client” in networking?

Answer 3

A “Client” is a host that initiates requests over a network

Question 4

What is a “server” in networking?

Answer 4

A Server is simpiliy and computer with a software installed to respond to specific requests. any device can be turned into a server, just with the proper software.

Question 5

What is the purpose of a IP Address?

Answer 5

An IP Address is the identity of each host. If you intend to send anything over the internet network, you need an IP device. IP addresses will be stamped on packets you receive or send.

Question 6

What does The SRC abbreviation mean?

Answer 6

“Source” as in Source IP Address or Source Mac Address

Question 7

what does DST Mean?

Answer 7

DST means destination, as in destination IP address or Destination Mac address

Question 8

How do we read/convert IP Addresses?

Answer 8

Every IP Address is made up of 32 1s and 0s (Bits) that we break down into 4 octets and then translate into a decimal number

Question 9

What is a bit?

Answer 9

A Bit is a 1 or a 0

Question 10

what is an octet?

Answer 10

Octet is a group of 8

Question 11

What process is used to assign IP Addresses?

Answer 11

Subnetting

Question 12

What is a Network?

Answer 12

A Network is what transports traffic between hosts. any time 2 hosts are connected, you have a network

More Specific Definition: A Grouping of hosts which require similar connectivity.

Question 13

what is ISP and what is the purpose of it/them?

Answer 13

ISP stands for Internet Service Provider, and the ISPs job is to connect networks together

Question 14

What are Repeaters? What are their purpose?

Answer 14

A Repeater is something that helps regenerate the signal from the computer. Think Red Stone Repeaters in Minecraft. After a certian Distance the connection fades so you need a repeater. same thing here.

The Repeaters Purpose is to connect computers over longer distances

Question 15

What is a Hub? What is its purpose? and whats its flaw?

Answer 15

A Hub is a Receiver but with multiple multiple ports. its purpose is to make adding new hosts infinitly easier, as they just connect to the hub rather than directly to each computer

the “Flaw” With Just Hubs, is when it recieves data, it amplifies it through all its ports. basically, everyone gets everyone elses data.

Question 16

What is a bridge? (networking) And what is its purpose?

Answer 16

A network bridge is a device or software that connects multiple networks or network segments into a single network.

its purpose is to connect networks, and help contain packets into their respective networks

Question 17

What are the Things that make a network bridge different from repeaters & Hubs?

Answer 17

Network Bridges only Have 2 Ports
and
Network Bridges Learn whats on each side of each port. this allows it to contain packets to the network the packet needs to go to.

Question 18

What is the difference between a Hub and a Repeater?

Answer 18

A Repeater amplifies a signal to the other side of where its going while a hub is made up of multiple receivers that a bunch of other hosts are connected to making a Local Area Network (LAN) it allows for packets to be forwarded to all devices on this network. it allows for connecting new devices infinitely easier.

Question 19

What is a switch and what is its purpose?

Answer 19

A Switch is basically a combination of a hub and a bridge. It is a hub because many devices can connect to it, and its a bridge because it can learn which hosts are on each port. allowing 2 computers in a 70 Host network talk directly with eachother without packets being sent to the other 68 computers VIA the Switch knowing which ports the computers are and sending packets through only those ports.

Question 20

What Are Addresses?

Answer 20

Unique identifiers in a network eg IP, MAC, Port number etc.

Question 21

What are the main purposes of a router?

Answer 21

A routers main purpose is to facilitate communication between 2 networks.

Because it is basically a hub that all other networks have to flow through, its also a great traffic control point(security, filtering, redirecting)

Question 22

What is Default Gateway?

Answer 22

Default gateway is the “Default” way out of a network. like a router, you have to go through your router to connect to another device, so it has its default gateway

Question 23

What is the internet?

Answer 23

the internet is basically a bunch of routers that allow for data to be sent to people all over the globe. all these routers are handled by ISPs and that is why they exist. their job its to make sure information gets from point A to B as Efficiently as possible.

Question 24

What is a Routing Table?

Answer 24

Routers learn “Routes” to other networks, and all these routes are stored in a Routing Table. The Rounding Table is all the networks the router knows about.