Ports and Protocols

Question 1

FTP (File Transfer Protocol)

Answer 1

Host to Host File Transfer

TCP: port 21

Question 2

SSH, SCH, SFTP (Secure Shell, Secure Copy, Secure File Transfer Protocol)

Answer 2

Secure remote terminal access, secure copy functions, secure file transfer.

TCP: port 22

Question 3

TELNET

Answer 3

Provides insecure remote control of another machine

TCP: port 23

Question 4

SMTP (Simple Mail Transfer Protocol)

Answer 4

Provide the ability to send email over the netwrok

TCP: port 25

Question 5

DNS

Answer 5

Translates domain names to IP addresses

TCP/UDP: port 53

Question 6

TFTP (Trivial File Transfer Protocol)

Answer 6

Lightweight file transfer for sending config files or network booting of an operating system.

UDP: port 69

Question 7

HTTP

Answer 7

Used for insecure web browsing

TCP: port 80

Question 8

KERBEROS

Answer 8

Network Authentication protocol

UDP: port 88

Question 9

POP3 (Post Office Protocol)

Answer 9

Responsible for retrieving email for a server

TCP: port 110

Downloads the email for the server and removes it from that server

Question 10

NNTP (Network News Transfer Protocol)

Answer 10

Used for accessing news groups

TCP: port 119

Question 11

RPC (Remote Procedure Call)

Answer 11

Facilitates comm between different system processes.

TCP/UDP: port 135

Seen as part of window file sharing system

Question 12

NetBIOS

Answer 12

Networking protocol suite used in windows domain environment to share network names, file and printer sharing

TCP/UDP: port 137, 138, 139

Question 13

IMAP (Internet Message Access Protocol)

Answer 13

Allows access to email messages on a server

TCP: port 143

Access the email from the server, remains saved in the server

Question 14

SNMP (Simple Network Management Protocol)

Answer 14

Manages network devices

UDP: port 161

Question 15

SNMPTrap

Answer 15

Sends SNMP trap messages

UDP: port 162

Question 16

LDAP (Lightweight Directory Access Protocol)

Answer 16

Facilitates directory services

TCP: port 389

Question 17

HTTPS

Answer 17

Secure web communications

TCP: port 443

Question 18

SMB (Server Message Block)

Answer 18

Used for file an drpinter sharing over a network

TCP: port 445

Question 19

SMTPS (SMTP Secure)

Answer 19

Provides secrue SMTP communications using SSL or TLS

TCP: port 465, 587

Question 20

Syslog

Answer 20

Used to send log messages

UPD: port 514

Question 21

LDAPS (LDAP Secure)

Answer 21

LDAP comms over SSL or TLS

TCP: port 636

Question 22

IMAPS (IMAPS over SSL/TLS)

Answer 22

Used for secure emal retrieval

TCP: port 993

Question 23

POP3S (POP3 over SSL/TLS)

Answer 23

Used for secure email retrieval

TCP: port 995

Question 24

Microsoft SQL

Answer 24

Comms with MS SQL server

TCP: port 1433

Question 25

RADIUS (Remote Authentication)

Answer 25

Used for remote authentication authorization and accounting

TCP: port 1645, 1646

Question 26

RADUIS UDP

Answer 26

Used for authentication authorization and accounting as defined by the internet engineering task force (IETF)

UDP: port 1812, 1813

Question 27

RDP (Remote Desktop Protocol)

Answer 27

Enables remote desktop access

TCP: port 3389

Question 28

Syslog TLS

Answer 28

TCP: port 6514