Computer Networking
RS-232-G

is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
None of these
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
is an interface between two data circuit terminating equipment as examplified by a local and remote modem

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Computer Networking
Which of the following technique is used for encapsulation?

a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
All of these
None of these
One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
a technique used in best-effort delivery systems to avoid endlessly looping packets.

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