Computer Networking
The packets switching concept was first proposed

None of these
All of these
in the late 1980s for the Defense Ministry of US.
in the late 1950s for Defense Ministry of US
in the early 1960s for military communication systems, mainly to handle speech

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Computer Networking
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?

The lowest IP address of any physical interface
The highest IP address of any physical interface
The lowest IP address of any logical interface
The highest IP address of any logical interface

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

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
None of these
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.
a technique used in best-effort delivery systems to avoid endlessly looping packets.
All of these

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