Ports

Question 1

HTTPS (Hype-text transfer protocol)

Answer 1

Secures http transmission over an unsecured network using SSL or TLS.
TCP Port: 80

Question 2

HTTP (Hype-text transfer protocol)

Answer 2

Retrieves content from a web server.

TCP Port: 80

Question 3

DNS

Answer 3

Resolves domain names to corresponding IP address.

TCP OR UDP Port:53

Question 4

SMTP (Simple Mail Transfer Protocol)

Answer 4

used sending emails.

TCP Port: 25

Question 5

SSH (Secure shell)

Answer 5

Securely connects to a remote host over an unsecured network.
TCP Port: 22

Question 6

FTP

Answer 6

Transfers files with a remote host.

TCP Port: 20(data transfer) and 21(control port)

Question 7

FTPS

Answer 7

Provides FTP file-transfer service over secure sockets layer (SSL) or more secure transport layer security (TLS).
TCP OR UDP Port: 989 and 990

Question 8

SFTP (Secure file transfer protocol)

Answer 8

Provides FTP file-transfer service over an SSH connection.

TCP port: 22

Question 9

Telnet

Answer 9

Used to connect to remote host (typically via a terminal)

TCP Port: 23

Question 10

TFTP (Trivial file transfer protocol)

Answer 10

Transfer files with a remote host (does not require authentication)
UDP Port: 69

Question 11

POP 3 (Post office protocol )

Answer 11

Retrieves email from an email server.

TCP Port: 110

Question 12

POP 3 (Post office protocol) over ssh or tls

Answer 12

Retrieves email from an email server over ssl or tls.

TCP OR UDP Port: 995

Question 13

DHCP (Dynamic Host Configuration Protocol)

Answer 13

Dynamically assigns IP address information to a network device.
UDP PORT: 67

Question 14

NTP (Network Time Protocol)

Answer 14

Used by a network device to synchronize its clock with a time server (NTP SERVER)
UDP Port: 123

Question 15

IMAP (Internet message active protocol) version 4

Answer 15

Allows the viewing of an email on an email server

TCP Port: 143

Question 16

IMAP (Internet message active protocol) version 4over ssl/tls

Answer 16

Allows the viewing of an email on an email server while encrypting the email in transit using ssl or the more secure option tls
TCP Port: 993

Question 17

LDAP(Lightweight directory access point)

Answer 17

Provides directory services to network clients.

TCP Port: 389

Question 18

LDAP over SSL/TLS

Answer 18

Provides directory services to network clients OVER SSL/TLS. secures directory service traffic

Question 19

SNMP(Simple network managment)

Answer 19

Used to monitor, manage, and configure network devices, An SNMP agent receives requests on port 161 and an SNMP agent sends traps on port 162.
TCP OR UDP: 161,162

Question 20

RDP (Remote desktop protocol)

Answer 20

A Microsoft protocol that allows a user to view and control the desktop of a remote computer
TCP Port: 3389

Question 21

SIP(Session initiation Protocol)

Answer 21

As signaling protocol used to setup, monitor, and tear down multimedia calls. port 5060 is commonly used for unencrypted calls and port 5061 is commonly used for encrypted calls.
TCP AND UDP Port: 5060, 5061

Question 22

H.323

Answer 22

A ITU T-recommendation that can setup and teardown multimedia calls
TCP Port: 1720

Question 23

SMB (Server message block)

Answer 23

Used primarily in Microsoft networks for sharing resources between devices.
UDP Port: 445