TCP/IP TCP and UDP Ports

Question 1

What are the well-known ports

Answer 1

Ports 0- 1023

Question 2

What are the Commonly used ports?

Answer 2

Ports 1024-49151

Question 3

What are the free ports?

Answer 3

Ports 49152- 65535

Question 4

FTP

Answer 4

TCP 20,21

File transfer protocol

Question 5

SSH

Answer 5

TCP 22

Secure Shell

Question 6

Telnet

Answer 6

TCP 23

Question 7

SMTP

Answer 7

TCP 25

Simple Mail transfer protocol

Question 8

DNS

Answer 8

TCP/UDP 53

Domain Name service

Question 9

DHCP

Answer 9

UDP 67, 68

Dynamic host configuration Protocol

Question 10

HTTP

Answer 10

TCP 80

Hyper transfer text protocol

Question 11

POP 3

Answer 11

TCP 110

Post office protocol version 3

Question 12

NetBIOS/NETBT

Answer 12

TCP 137- 139

Question 13

SNMP

Answer 13

UDP 161, 162

simple network management protocol

Question 14

LDAP

Answer 14

TCP 389

Lightweight directory access protocol

Question 15

SLP

Answer 15

TCP 427

Service location Protocol

Question 16

HTTPS

Answer 16

TCP 443

Hyper text transfer protocol secured

Question 17

SMB/CIFS

Answer 17

TCP 445

Server Message Block/ Common internet file system

Question 18

AFP

Answer 18

TCP 548

Apple filling protocol

Question 19

RDP

Answer 19

TCP 3389

Remote Desktop Protocol

Question 20

Class A Network

Answer 20

First Octet: 1-127
Default subnet mask: 255.0.0.0
Large networks.

Question 21

Class B Network

Answer 21

First Octet: 128-191
Default subnet mask: 255.255.0.0
Medium size networks

Question 22

Class C Network

Answer 22

First Octet: 192-223
Default subnet mask: 255.255.255.0
Small networks with few hosts

Question 23

Class D Network

Answer 23

First octet: 224-239
For Multicast (sending messages to multiple systems)

Question 24

Class E Network

Answer 24

First octet: 240-255

Reserve for testing.

Question 25

subnet mask for class A

Answer 25

/8 through /15

Question 26

Subnet mask for class A and B

Answer 26

/16 through /23

Question 27

Subnet mask for class A, B and C

Answer 27

/24 though /30

Question 28

APIPA Network start with

Answer 28

169.254.0.0 and on.

Question 29

IPV6 Loopback address

Answer 29

::1

Question 30

IPV6 Global Unicast address

Answer 30

2000::/3 Range

Question 31

IPV6 Unique local Unicast adresses

Answer 31

FC00::/7 Range

Question 32

Link local Address for IPv6

Answer 32

FE80::/10

Question 33

Multicast Adresses for IPv6

Answer 33

FF00::/8