Exam 10: E-Mail Security

What are three e-mail security measures that organizations can take to protect its users and computers?

What is displayed in the figure above?

In terms of encryption, the original S/MIME version used a 56-bit encryption method, called RC3.

Does SMTP support the transmission of ASCII text as well as binary file?

A(n) host address resource record associates a particular TCP/IP service to a server.

Looking up a computer on the basis of its name and then associating that name with an IP address is accomplished by defining a DNS _____ .

Do direct attacks on SMTP typically come from client e-mail software such as Outlook, Evolution, or Apple Mail?

Authenticating e-mail is one of the most effective ways to ensure the privacy of messages while they are in transit and after they arrive at an SMTP server.

What TCP port does IMAP use?

GPG is a security method that is designed to be compatible with PGP.

One way to help control UCE is for an organization to ensure that its mail servers are not configured as open SMTP relay servers.

List four of the e-mail communication security measures that are supported by Outlook Express.

CAST was developed by Xuejia Lai and James Massey and uses a 128-bit key.

MIME is designed for the exchange of electronic mail between networked systems, particularly via the Internet.

E-mail encryption reduces the chance that someone can forge an e-mail, because both the sender and the recipient must be using the same encryption ____________________ and the same encryption method.

A local delivery agent is used to transmit an e-mail message.

In an SMTP message, are the address header and the message text both encoded in 15-bit ASCII format?

SMTP is a client and server process.

Is unsolicited commercial e-mail very expensive for organizations?

POP3 is popular among many ISPs because it is designed so that messages are downloaded to an inbox on the client's computer, rather than being stored on the e-mail server after they are accessed.