Free Printable Top 20 Most Commonly Used Ports

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Worksheets

Top 20 Most Commonly Used Ports

Total questions: 20

Worksheet time: 10mins

Name

Class

Date

1.

What protocol is used by port 20?

a)

A) FTP Data

b)

B) HTTP

c)

C) SMTP

d)

D) DNS

e)

FTP Control

2.

What protocol is used by port 21?

a)

A) FTP Data

b)

B) HTTP

c)

C) SMTP

d)

D) DNS

e)

FTP Control

3.

What protocol is used by port 22?

a)

A) Telnet

b)

B) SSH

c)

C) IMAP

d)

D) RDP

4.

What protocol is used by port 23?

a)

A) SMTP

b)

B) Telnet

c)

C) HTTPS

d)

D) POP3

5.

What protocol is used by port 25?

a)

A) FTP

b)

B) DNS

c)

C) SMTP

d)

D) SMB

6.

What protocol is used by port 53?

a)

A) DNS

b)

B) HTTP

c)

C) RDP

d)

D) IMAPS

7.

What protocol is used by port 80?

a)

A) HTTPS

b)

B) HTTP

c)

C) FTP

d)

D) POP3

8.

What protocol is used by port 110?

a)

A) POP3

b)

B) SMTP

c)

C) SSH

d)

D) IMAP

9.

What protocol is used by port 143?

a)

IMAP

b)

FTP

c)

Telnet

d)

SMTP

10.

What protocol is used by port 443?

a)

A) HTTP

b)

B) HTTPS

c)

C) DNS

d)

D) FTP

11.

What protocol is used by port 445?

a)

A) SMB

b)

B) SMTP

c)

C) POP3

d)

D) IMAPS

12.

What protocol is used by port 993?

a)

A) POP3

b)

B) IMAPS

c)

C) RDP

d)

D) SSH

13.

What protocol is used by port 995?

a)

A) POP3S

b)

B) FTP

c)

C) HTTP

d)

D) SMTP

14.

What protocol is used by port 3306?

a)

MySQL

b)

DNS

c)

Telnet

d)

RDP

15.

What protocol is used by port 3389?

a)

A) FTP

b)

B) RDP

c)

C) SMTP

d)

D) IMAP

16.

What protocol is used by port 8080?

a)

A) HTTP

b)

B) HTTPS

c)

C) FTP

d)

D) Web Proxy - HTTP

17.

What protocol is used by port 1433?

a)

D) SMTP

b)

C) FTP

c)

B) MSSQL

d)

A) MySQL

18.

What protocol is used by port 161?

a)

D) IMAP

b)

B) HTTP

c)

A) SNMP

d)

C) SSH

19.

What protocol is used by port 389?

a)

D) POP3

b)

A) LDAP

c)

B) HTTPS

d)

C) DNS

20.

What protocol is used by port 69?

a)

D) SSH

b)

C) SMTP

c)

A) HTTP

d)

B) TFTP

100 %

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