Ports

Question 1

FTP (file transfer protocol)

Answer 1

20-21

Transfer files between a client and server

Question 2

SSH (secure shell)

SFTP (secure file transfer protocol)

Answer 2

22

Question 3

Telnet

Answer 3

23

Virtual access of a computer, text based

Question 4

SMTP (simple mail transfer protocol)

Answer 4

25

Sends messages between servers

Question 5

DNS (domain name server))

Answer 5

53

translates domain names to IP addresses

Question 6

HTTP (hyper text transfer protocol)

Answer 6

80

Establish connection with web server

Question 7

POP 3 (post office protocol)

Answer 7

110

Download email to a client

Question 8

SNMP (simple network management protocol)

Answer 8

161/162

Used to share information between devices

Question 9

IMAP (internet message across protocol)

Answer 9

143

Accessing email on a server

Question 10

HTTPS (hypertext transfer protocol secure)

Answer 10

443

Secure HTTP

Question 11

RDP (Remote Desktop protocol)

Answer 11

3389

Connects to a remote client with a graphic interface

Question 12

Netbios

Answer 12

137-139

Allows applications in separate computers to connect in the session layer IOS model

Question 13

SMB/CIFS (server message block/common internet file system)

Answer 13

445

Allows applications on other computers to read/write and request services

Question 14

AFP (AppleTalk filing protocol)

Answer 14

548

Offers file services for MacOs

Question 15

DHCP (dynamic host configuration protocol)

Answer 15

67/68

Used to automate the process of configuring devices on an IP network

Question 16

LDAP (lightweight directory access protocol)

Answer 16

389

Directory service authentication

Question 17

TFTP (trivial file transfer protocol)

Answer 17

69

Allows à client to file transfer

Question 18

NNTP (network news transfer protocol)

Answer 18

119

Transfer and read net news articles

Question 19

NTP (network time protocol)

Answer 19

123

Used to synchronize computer clocks

Question 20

LDAPS (lightweight directory access protocol secure

Answer 20

636

LDAP secure

Question 21

H.323 Call Signaling

Answer 21

1720

Provides audio/video communications

Question 22

MGCP (Cisco média gateway control protocol)

Answer 22

2427

Signal and call control for VOIP

Question 23

RTP (real-time transport protocol)

Answer 23

5004-5005

Delivers streaming audio/video packets over the internet

Question 24

SIP (session initiation protocol)

Answer 24

5060-5061

Establishes a VOIP session, IP address and ports

Question 25

TACACS

Terminal Access Controller Access-Control System

Answer 25

49