2.1B - Common Network Ports

Which port number is commonly used by the FTP protocol for data transfer?

• 20

• 21

• 22

• 23

Telnet commonly uses TCP port ___ to provide its connection.

• 20

• 21

• 22

• 23

What does SMTP stand for and what is its primary use?

• Simple Mail Transfer Protocol, used for sending emails

• Secure Mail Transfer Protocol, used for encrypting emails

• Simple Message Transfer Protocol, used for instant messaging

• Secure Message Transfer Protocol, used for secure messaging.

Fill in the blank: DHCP commonly uses UDP port ___ to assign IP addresses.

• A) 25

• B) 53

• C) 67

• D) 80

What is the primary purpose of DHCP in a network?

• To assign IP addresses automatically

• To encrypt data

• To manage email servers

• To transfer files.

HTTP is used for communication in the clear, while HTTPS is used for ________ communication.

• encrypted

• unencrypted

• email

• file transfer

Which UDP port does SNMP use to perform queries?

• 161

• 162

• 389

• 445

SNMP version 3 includes ______ to ensure security.

• encryption

• compression

• redundancy

• fragmentation

What is the standard protocol used by Windows for remote desktop communication?

• SNMP

• LDAP

• RDP

• TCP/IP

Which of the following operating systems can run a client for Remote Desktop Protocol (RDP)?

• Windows only

• Linux, Mac OS, Android, and others

• Mac OS only

• Android only