PORTS

Question 1

FTP

Answer 1

File Transfer Protocol
Port 20, 21
Transfers files between Client and Server
Unsecure

Question 2

SSH

Answer 2

Secure Shell
Port 22
Allows you to take remote control over computer using cryptographic network protocol.

Question 3

SFTP

Answer 3

SSH File Transfer Protocol
Port 22
Secure File Transfer

Question 4

Telnet

Answer 4

Port 23
Bidirectional interactive communication.
Similar to SSH but insecure

Question 5

SMTP

Answer 5

Simple Mail Transfer Protocol
Port 25
Internet standard for sending email

Question 6

DNS

Answer 6

Domain Name Service
Port 53
Domain Names to IP

Question 7

DHCP

Answer 7

Dynamic Host Control Protocol
Port 67, 68
Dynamically assigns IP to hosts

Question 8

TFTP

Answer 8

Trivial File Transfer Protocol
Port 69
Transmits files used for booting an OS from a LAN file server
Usually used in config files from a router or switch

Question 9

HTTP

Answer 9

Hyper Text Transfer Protocol
Port 80
Unsecured web browsing

Question 10

POP3

Answer 10

Post Office Protocol v3
Port 110
Used by local email clients to retrieve emails from a remote server using tcp/ip connection
DOWNLOADING EMAILS

Question 11

NTP

Answer 11

Network Time Protocol
Port 123
Provides time syncs

Question 12

NetBIOS

Answer 12

Network Basic Input/Output
Port 139
Allows apps on separate computers to communicate over a LAN for file and printer sharing

Question 13

IMAP

Answer 13

Internet Mail Application
Port 143
Receives emails from mail server, DOES NOT DOWNLOAD THEM

Question 14

SNMP

Answer 14

Simple Network Management Protocol
Port 161
Collection and organization of info about managed devices on IP network

Question 15

LDAP

Answer 15

Lightweight Directory Access Protocol
Port 389
Open, Vender Neutral industry standard for accessing and maintaining distributed directory information services
ACTIVE DIRECTORY

Question 16

HTTPS

Answer 16

Hyper Text Transfer Protocol Secure
Port 443
Uses SSL or TLS for secure web browsing

Question 17

SMB

Answer 17

Server Message Block
Port 445
Provides shared access to files, printers, and other communication devices. Works in conjunction with NetBios (port 139) Both would be open if using Windows File Sharing.

Question 18

LDAPS

Answer 18

LDAP Secure
Port 636
Secure Active Directory (TLS/SSL)

Question 19

RDP

Answer 19

Remote Desktop Protocol
Port 3389
Microsoft GUI computer to computer remote connection

Question 20

SIP

Answer 20

Session Initiation Protocol
Port 5060, 5061

▪ Provides signaling and controlling multimedia communication sessions in applications
▪ Used for Internet telephony for voice and video calls, VOIP, and instant messaging