Port numbers

Question 1

20/21

Answer 1

File Transfer Protocol (FTP)

Question 2

22

Answer 2

Secure Shell (SSH)

Question 3

22

Answer 3

Secure File Transfer Protocol (SFTP)

Question 4

23

Answer 4

Telnet

Question 5

25

Answer 5

Simple Mail Transfer Protocol (SMTP)

Question 6

53

Answer 6

Domain Name System (DNS)

Question 7

67/68

Answer 7

Dynamic Host Configuration Protocol (DHCP)

Question 8

69

Answer 8

Trivial File Transfer Protocol (TFTP)

Question 9

80

Answer 9

Hypertext Transfer Protocol (HTTP)

Question 10

110

Answer 10

Post Office Protocol v3 (POP3)

Question 11

123

Answer 11

Network Time Protocol (NTP)

Question 12

143/993 secure

Answer 12

Internet Message Access Protocol (IMAP)

Question 13

161/162

Answer 13

Simple Network Management Protocol (SNMP)

Question 14

389

Answer 14

Lightweight Directory Access Protocol (LDAP)

Question 15

443

Answer 15

Hypertext Transfer Protocol Secure (HTTPS) [Secure Sockets Layer (SSL)]

Question 16

443

Answer 16

HTTPS [Transport Layer Security (TLS)]

Question 17

445

Answer 17

Server Message Block (SMB)

Question 18

514

Answer 18

Syslog

Question 19

587

Answer 19

SMTP TLS

Question 20

636

Answer 20

Lightweight Directory Access Protocol (over SSL) (LDAPS)

Question 21

993

Answer 21

IMAP over SSL

Question 22

995

Answer 22

POP3 over SSL

Question 23

1433

Answer 23

Structured Query Language (SQL) Server

Question 24

1521

Answer 24

SQLnet

Question 25

3306

Answer 25

MySQL

Question 26

3389

Answer 26

Remote Desktop Protocol (RDP)

Question 27

5060/5061

Answer 27

Session Initiation Protocol (SIP)

Question 28

IP protocol types

Answer 28

Internet Control Message Protocol (ICMP) - TCP -connection-oriented - UDP- Connectionless - Generic Routing Encapsulation (GRE) - Internet Protocol Security (IPSec) - Authentication Header (AH)/Encapsulating Security Payload (ESP)