Common Ports 1.5

Question 1

File transfer protocol (FTP)

Answer 1

Tcp 20/21

20 active mode data

21 control process - tells system which file to send next

Question 2

Telnet

Answer 2

TCP 23

Question 3

SSH

Answer 3

TCP 22

Question 4

DNS

Answer 4

UDP 53

Question 5

SMTP

Answer 5

TCP 25

Question 6

SMTP TLS

Answer 6

587

Question 7

IMAP

Answer 7

TCP 143

Question 8

POP3 TLS

Answer 8

995

Question 9

IMAP

Answer 9

143

Question 10

IMAP v4 TLS

Answer 10

993

Question 11

SFTP

Answer 11

Secure File Transfer Protocol

TCP 22

Resuming interrupted transfers

Question 12

TFTP

Answer 12

Trivial FTP

UDP 69

No authentication

Not a lot of file management capability

Question 13

DHCP

Answer 13

Dynamic host configuration protocol

UDP 67 and 68

Question 14

HTTP

Answer 14

TCP 80

Question 15

HTTPS

Answer 15

TCP 443

Uses newer version of secure socket layer (SSL) called Transport Layer Security (TLS)

Question 16

SNMP

Answer 16

UDP 161

Trap UDP 162

SNMP V1 in the clear

SNMP V2 in clear but enhancements

SNMP V3 encrypted used today

Question 17

SYSLOG

Answer 17

UDP 514

Database of activity on network devices

Resides in System information Event Manager (SIEM)

Question 18

RDP

Answer 18

TCP 3389

Question 19

NTP

Answer 19

UDP 123

Question 20

SIP

Answer 20

TCP 5060 and

5061 session initiation

Question 21

SMB

Answer 21

TCP 445

This used to be accomplished using NETBIOS

Question 22

LDAP

Answer 22

TCP 389

Question 23

LDAP SECURE

Answer 23

SSL

TCP 636

Question 24

SQL

Answer 24

TCP 1443

Question 25

Oracle SQLnet or Net8

Answer 25

TCP 1521

Question 26

MySQL

Answer 26

TCP 3306