Protocols and Ports

Question 1

FTP

Answer 1

File Transfer Protocol —– 20/21

Insecure file transfers

Question 2

SSH

Answer 2

Secure Shell —- 22

Remote Control. Cryptographic protocol.
It’s secure on both ends.

Question 3

SFTP

Answer 3

Secure File Transfer Protocol —- 22

Provides secure file transfers

Question 4

Telnet

Answer 4

Telnet — 23
Insecure remote access. Data is transmitted in clear text.
NEVER EVER USE IT.

Question 5

SMTP

Answer 5

Simple Mail Transfer Protocol —- 25

Sends emails over the network.

Question 6

DNS

Answer 6

Domain Name System – 53

Convert domain names to IP and vice versa.

Question 7

DHCP

Answer 7

Dynamic Host Configuration Protocol —- 67/68

Automatically assign IP address and network parameters to clients.

Question 8

HTTP

Answer 8

Hypertext Transfer Protocol —– 80

Used for insecure web browsing.

Question 9

POP3

Answer 9

Post office Protocol 3 —- 110

Used for receiving email.

Question 10

NTP

Answer 10

Network Time Protocol —- 123

Time synchronization to keep accurate time for clients on network.

Question 11

NetBIOS

Answer 11

Network Basic Input Output System —- 139

File and Printer sharing in a windows network on the Local Area Network.

Question 12

IMAP

Answer 12

Internet Message Access Protocol — 143

The new version of retrieving emails improves POP3.
Emails can be stored and unread.

Question 13

SNMP

Answer 13

Simple Network Management Protocol —- 161/162

Collect data about network devices and monitor their status.

Question 14

LDAP

Answer 14

Lightweight Directory Access Protocol —- 389

Open, vendor-neutral protocol to provide directory services to your network.

Question 15

HTTPS

Answer 15

Hypertext Transfer Protocol Secure —- 443

Secure web browsing.

1) SSL - Secure Sockets Layer
2) TLS - Transport Layer Security

Question 16

SMB

Answer 16

Server Message Block —- 445

Shared access between files & printers among different computers on your network.

Question 17

Syslog

Answer 17

Syslog — 514

Logging data to the administrator.

Question 18

SMTP TLS

Answer 18

Simple Main Transfer Protocol over Tranport Layer Security —- 587

Secure and encrypted way to send emails.

Question 19

LDAPS

Answer 19

Lightweight Directory Access Protocol Secure — 636

Secure directory services.

Question 20

IMAP over SSL

Answer 20

Internet Message Access Protocol over Secure Sockets Layer —- 993

Secure and encrypted way to receive emails.

Question 21

POP3 over SSL

Answer 21

Post Office Protocol 3 over Secure Sockets Layer — 995

Secure and encrypted way to receive emails.

Question 22

SQL

Answer 22

Structured Query Language — 1433

Communicate from a client to a database.

Question 23

SQL Net

Answer 23

Structured Query Language Net – 1521

Communicate from a client to an Oracle database.

Question 24

MySQL

Answer 24

MySQL — 3306

Communicate from a client to a MySQL database engine.

Question 25

RDP

Answer 25

Remote Desktop Protocol