Secure Network Protocols

A suite of security extensions for an Internet service that translates domain names into IP addresses is known as:

• EDNS

• DNSSEC 

• Split DNS

• •    DDNS

Which of the following answers refers to a non-proprietary cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services?

• RDP

• Telnet

• SSH 

• RAS

Multipurpose Internet Mail Extensions (MIME) specification extends the email message format beyond simple text, enabling the transfer of graphics, audio, and video files over the Internet mail system. Secure MIME (S/MIME) is an enhanced version of the MIME protocol that enables email security features by providing encryption, authentication, message integrity, and other related services.

• True

• False

Which protocol enables secure, real-time delivery of audio and video over an IP network?

• S/MIME

• RTP

• SIP

• SRTP 

LDAPS is an example of:

• Authentication protocol

• Secure directory access protocol 

• Address resolution protocol

• File exchange protocol

Which of the following protocols allow(s) for secure file transfer? (Select all that apply)

• FTPS

• TFTP

• FTP

• SFTP 

Secure File Transfer Protocol (SFTP) is an extension to the FTP protocol that adds support for the Transport Layer Security (TLS) and the Secure Sockets Layer (SSL) cryptographic protocols.

• True

• False

 A network protocol for secure file transfer over Secure Shell (SSH) is called:

• TFTP

• SFTP 

• Telnet

• FTPS

FTPS is an extension to the Secure Shell (SSH) protocol and runs by default on port number 22.

• True

• False

Which version(s) of the SNMP protocol offer(s) authentication based on community strings sent in an unencrypted form? (Select all that apply)

• SNMPv1

• SNMPv2

• SNMPv3

• SNMPv4