1-Basics

Question 1

What is a network?

Answer 1

Its a digital telecommunications network that allows nodes to share resources

Question 2

What is an End-Host

Answer 2

It’s either a server or a client.

Question 3

PC 1 sends photos to PC 2 which of them is the server and which one is the client?

Answer 3

PC 1: Server
PC 2: Client

Question 4

Name the node that utilizes a service from a server.

Answer 4

Client

Question 5

Name the node that provides a service.

Answer 5

Server

Question 6

Can the same device be both a server and a client?

Answer 6

yes

Question 7

What do you use to connect two different networks?

Answer 7

A Router

Question 8

What do you use to create a LAN?

Answer 8

A Switch

Question 9

Name two Cisco enterprise switches.

Answer 9

1- Catalyst 9200
2- Catalyst 3650

Question 10

Why use a switch for a LAN and can it connect to other LANs?

Answer 10

1- They have many ports to connect multiple interfaces
2- No

Question 11

How many ports does a switch have usually?

Answer 11

24 or more

Question 12

Name some Cisco routers.

Answer 12

1- ISR 1000
2- ISR 900
3- ISR 4000

Question 13

Describe routers.

Answer 13

1 - Routers have less ports that switches
2 - Routers connect entire networks or LANs.

Question 14

What do you use to protect a network?

Answer 14

A Firewall.

Question 15

Should you put the firewall inside or outside the LAN?

Answer 15

You can put them inside and outside at the same time

Question 16

Give some examples of Cisco Firewalls.

Answer 16

1- ASA500-X
2- Firepower 2100

Question 17

Describe Firewalls.

Answer 17

1- They monitor and control network traffic based on configured rules
2- They be placed inside or outside the network.

Question 18

What are Next-Generation Firewalls?

Answer 18

They are firewalls that provide modern and advance filtering capabilities.

Question 19

Differentiate between Network firewalls and host-based firewalls.

Answer 19

Network firewalls are hardware based and they monitor traffic between networks

host-based firewalls are software applications that monitor and filter traffic entering and exiting a host machine

Question 20

Cognitive: A phone receiving a photo from a server is called an end host

Answer 20

Partly true, an end host is either a server or a client so the phone is called a client

Question 21

Cognitive: What do you use when you want to connect end hosts to network

Answer 21

a switch