26.Remote Logging, Electronic Mail, and File Transfer

When both sender and receiver are connected to a mail server via a LAN or a WAN, we need ___________________.

• two UAs, two pairs of MTAs, and a pair of MAAs
• two UAs, and two pairs of MTAs
• two UAs, two pairs of MTAs, and two pairs of MAAs
• none of the above

The actual mail transfer is done through ____________.

• UAs
• MTAs
• MAAs
• none of the above

If the sender wants an option enabled by the receiver, it sends a _______ command.

• WILL
• DO
• WONT
• none of the above

When the sender is connected to the mail server via a LAN or a WAN, we need ______________.

• two MTA
• two UAs and two pairs of MTAs
• two UAs and a pair of MTAs
• none of the above

The ________ usually contains the sender address, the receiver address, and other information.

• message
• envelope
• both a and b
• none of the above

NVT uses two sets of characters, one for _____and one for __________.

• sending; receiving
• request; reply
• data; control
• none of the above

In FTP, ASCII, EBCDIC, and image define an attribute called _______.

• file type
• data structure
• transmission mode
• none of the above

The third stage in an email transfer needs a ________ protocol.

• pull
• push
• both a and b
• none of the above

_______ is the standard mechanism provided by TCP/IP for copying a file from one host to another.

• TELNET
• SMTP
• TFTP
• none of the above

In the _______ mode, each character typed is sent by the client to the server.

• default
• character
• line
• none of the above