Lesson 5

Question 1

NCP

Answer 1

Network control protocol

Question 2

HTTP

Answer 2

Hypertext transfer protocol

Question 3

SMTP

Answer 3

Simple mail transfer protocol

Question 4

SSH

Answer 4

Secure shell

Question 5

FTP

Answer 5

File transfer protocol

Question 6

DNS

Answer 6

Domain name system

Question 7

OSI model

Answer 7

Open system interconnection

Question 8

7 models of OSI

Answer 8

1. Physical (hardware)
2. Data link (recovery data)
3. Network (oversees data)
4. Transport (data delivery)
5. Session (connection between two devices)
6. Presentation (data translation/encryption)
7. Application (everyday processes)

Question 9

HDLC

Answer 9

High lever data link control

Question 10

IPv4 (IP addressing v4)

Answer 10

32-bit integers that can be expressed in hexadecimal notation. The more common format, known as dotted quad or dotted decimal, is x.x.x.x, where each x can be any value between 0 and 255. For example, 192.0. 2.146 is a valid IPv4 address.

Question 11

IP V6

Answer 11

An IPv6 address is 128 bits long .compared with the 32 bit address of IPv4, this is a huge(2 raised 96 times) increases in the address space

There are 8 groups and each group represents 2 Bytes (16-bits).
Each Hex-Digit is of 4 bits (1 nibble)
Delimiter used – colon (:)

Question 12

Bandwidth

Answer 12

Max data transmission capacity over a network measured by bits per second

Question 13

MAC

Answer 13

Media access control

Question 14

SNMP

Answer 14

Simple network management protocols

Question 15

SFTP

Answer 15

Secure file transfer protocol

Question 16

AES

Answer 16

Advanced encryption standard

Question 17

DHCP

Answer 17

Dynamic host configuration protocol

Question 18

IMAP

Answer 18

Internet message access protocol
(Used for incoming mail)