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

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 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
a technique used in best-effort delivery systems to avoid endlessly looping packets.

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Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

A and B both
universal accessibility for private network Data Terminal Equipment (DTE)
adequate cost control mechanisms for administration of the private networks
to assign address to private network DTEs
None of these

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