Common Ports and Protocols Review

A company wants to ensure secure communication for LDAP services. Which protocol and associated port number should they choose for encrypted LDAP?

• LDAP over SSL (Port 636)

• LDAPS (Port 389)

• SNMP (Port 161/162)

• SSH (Port 22)

A web hosting provider needs to ensure secure web browsing for its clients. Which protocol and port number should they ensure is available for encrypted web communication?

• HTTPS (Port 443)

• HTTP (Port 80)

• FTPS (Port 990)

• SSH (Port 22)

A database administrator wants to ensure secure communication for database access. Which protocol should they consider for encrypted database connections?

• SQLnet

• MySQL

• LDAP

• SNMP

A system administrator needs to securely retrieve emails from a server to a client. Which protocol and associated port number should they use for secure email retrieval?

• SMTP TLS (Port 587)

• IMAP over SSL (Port 993)

• POP3 over SSL (Port 995)

• DNS (Port 53)

Which protocol utilizes port 587 for secure email transmission?

• POP3

• SMTP TLS

• IMAP

• LDAP

An organization wants to enable secure remote access for employees to their work computers. Which protocol and associated port number should they enable for this purpose?

• RDP (Port 3389)

• Telnet (Port 23)

• FTP (Port 21)

• DNS (Port 53)

What is the secure version of FTP, often using port 21 or 990 for encrypted file transfers?

• TFTP

• FTPS

• SCP

• Telnet

A company needs to securely transfer confidential files between its offices. Which protocol and port number combination should they use for encrypted file transfer?

• FTP (Port 20)

• FTPS (Port 21)

• SFTP (Port 22)

• TFTP (Port 69)

Which protocol uses port 995 for secure email retrieval?

• POP3 over SSL

• SMTPS

• IMAPS

• DNS

What ports are used for the Simple Network Protocol?

• 20/21

• 67/68

• 5060/5061

• 161/162