Network Protocols and Ports

The video tutorial covers various network protocols, including their functions and associated port numbers. It explains protocols for terminal communication, DNS, email, file transfer, web access, network management, remote access, VoIP, and database access. The tutorial emphasizes the importance of secure communication and the use of encryption in protocols like SSH, HTTPS, and secure email protocols.

Which port does Telnet use for communication?

• TCP port 22

• TCP port 80

• TCP port 23

• UDP port 53

What is the main security issue with Telnet?

• It requires special hardware

• It sends data in clear text

• It uses too much bandwidth

• It is not compatible with modern devices

Which protocol is used for secure terminal communication and operates over TCP port 22?

• Telnet

• FTP

• SSH

• SMTP

What port does DNS primarily use for communication?

• UDP port 53

• UDP port 67

• TCP port 25

• TCP port 110

Which port is used by SMTP for encrypted communication using TLS?

• TCP port 110

• TCP port 143

• TCP port 587

• TCP port 25

Which protocol is used for secure file transfer and operates over TCP port 22?

• HTTP

• FTP

• TFTP

• SFTP

What is the primary function of DHCP?

• To transfer files securely

• To assign IP addresses automatically

• To synchronize time across devices

• To manage email communication

Which port does HTTPS use for secure web communication?

• TCP port 80

• TCP port 443

• UDP port 161

• TCP port 3389

What protocol is used for remote desktop access on Windows and operates over TCP port 3389?

• SSH

• RDP

• FTP

• SNMP

Which port is used by LDAP for secure communication?

• TCP port 389

• TCP port 636

• TCP port 1433

• TCP port 1521