Intro to Network

Question 1

What is a Network?

Answer 1

Bunch of computers connected through a medium (ethernet, Bluetooth , wifi…)

Question 2

How long are IPv4 addresses?

Answer 2

32 bit

Question 3

How long are IPv6 addresses?

Answer 3

128 bit

Question 4

What are the benefits of using packets to transmit data?

Answer 4

1. Reduces file size

2. allows more networking throughput

Question 5

What are the differences between a Hub and a Switch?

Answer 5

1. A Hub works as a central point, but don’t necessarily identifies singular devices
2. A Switch also works as a central point, but only routes traffic to the specific address

Question 6

_________ are the backbones/heavy lifters of most any network

Answer 6

Routers

Question 7

What are routers responsibilities?

Answer 7

1. Separate and bridge private x public networks
2. Assign IP using DHCP (Dynamic Host Configuration Protocol)
3. Firewall and protect

Question 8

What are the ranges for Classes A, B, and C networks?

Answer 8

Class A: 0 ~ 127

Class B: 128 ~ 191

Class C: 192 ~ 255

Question 9

Name all topologies presented in this course

Answer 9

Ring, Mesh, Star, Fully connected, Line, Tree, Bus

Question 10

What are the 3 elements in any communication?

Answer 10

Sender, Source, and Media