Networking

Question 1

What makes up a Network?

Answer 1

Host, Clients, Communication media, communication interface, Protocols

Question 2

Peer-to-Peer

Answer 2

Easy to setup and inexpensive, but it lacks scalability.

Decentralized control and storage make it difficult to manage.

Question 3

Client Server

Answer 3

Hosts have specific roles. Centralized control and storage allows for scalability.

Question 4

Subnets

Answer 4

Devices connected through the same hub/switch are on the same subnet; routers are used to connect subnets

Question 5

Dial-Up

Answer 5

Uses a RJ-11 cable and has transfer rates of 28.8, 33.3, 56 Kbps. You can’t use the phone and the data(Internet) at the same time.

Question 6

Class A

Answer 6

Range: 1-126
Subnet: XXX.0.0.0

Question 7

Class B

Answer 7

Range: 128-191
Subent: XXX.XXX.0.0

Question 8

Class C

Answer 8

Range: 192-223
Subnet: XXX.XXX.XXX.0

Question 9

Loopback Address

Answer 9

127.0.0.1

Primarily used as a means to validate that the locally connected physical network card is working properly

Question 10

APIPA Address

Answer 10

169.254.0.1-169.254.255.254

DHCP is down or there isn’t any internet connectivity

Question 11

IMAP

Answer 11

Port 143

Allows user to view email without downloading it from a remote server

Question 12

POP3

Answer 12

Port 110

Allows users to download email from a remote server

Question 13

HTTP

Answer 13

Port 80

Question 14

HTTPS

Answer 14

Port 443

Question 15

FTP

Answer 15

Port 21

Simple file transfer protocol. Security feature is username and password

Question 16

SMTP

Answer 16

Port 25

Simple mail transfer protocol that allows for the transmission of email through the internetwork

Question 17

Telenet

Answer 17

Port 23

Allows remote access

Question 18

SSH/SFTP

Answer 18

Port 22

Allows for secure connections/ file transfer/ remote access

Question 19

DNS

Answer 19

Port 53

Domain name server provides name address resolution

Question 20

Connecting a Computing Device to a Cellular Network

Answer 20

Use a USB cable to connect the device
Use the device’s Wi-Fi
Use a USB cellular antennae /Integrated antennae