Ports & Services

Question 1

NTP

Answer 1

Network Time Protocol

Port: 123

Question 2

DNS

Answer 2

Domain Name Service
Port: 53

UDP/53 for queries
TCP/53 for zone transfers

Question 3

FTP

Answer 3

File Transfer Protocol

port: 21/20

Question 4

FTPS

Answer 4

File Transfer Protocol secure

Port: 990/989

Question 5

HTTP

Answer 5

Hypertext Transfer Protocol

Port: 80

Question 6

HTTPS

Answer 6

HTTP over SSL

Port: 443

Question 7

LDAP

Answer 7

Lightweight Directory Access Protocol

Port: 389

Question 8

LDAPS

Answer 8

LDAP over SSL

port: 636

Question 9

POP

Answer 9

Post Office Protocol

port: 110

Question 10

POPS

Answer 10

Post Office Protocol/Secured

Port: 995

Question 11

IMAP

Answer 11

Internet Mail Application Protocol

Port: 143

Question 12

IMAPS

Answer 12

Internet Mail Application Protocol/Secured

port: 993

Question 13

RDP

Answer 13

Remote Desktop Protocol

Port: 3389

Question 14

SMTP

Answer 14

Simple Mail Transfer Protocol

Port: 25

Question 15

SMTPS

Answer 15

Simple Mail Transfer Protocol/Secured

port: 465

Question 16

SNMP

Answer 16

Simple Network Management Protocol

port: 161

Question 17

SNMP Trap

Answer 17

Port: 162

Question 18

SSH

Answer 18

Secure Shell

port: 22

Question 19

SFTP (Secure FTP)

Answer 19

port: 22

Question 20

SCP (Secure Copy)

Answer 20

port: 22

Question 21

ICMP

Answer 21

Internet Control Message Protocol (ICMP) is used for reporting errors and performing network diagnostics

Network Layer.

No Port number.

Question 22

netbios

Answer 22

port 139 - Windows

Question 23

Kerberos

Answer 23

Port: 88

Question 24

L2TP

Answer 24

Layer 2 Tunneling Protocol (L2TP)

Port: 1701