Computer Networking
Which type of OSPF network will elect a backup designated router?1. Broadcast multi-access2. Non-broadcast multi-access3. Point-to-point4. Broadcast multipoint

None of these
1 and 2
3 and 4
3 only

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Computer Networking
A front-end processor is

a processor in a large-scale computer that executes operating system instructions
None of these
a minicomputer that relieves main-frame computers at a computer centre of communications control functions
a user computer system
preliminary processor of batch jobs.

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Computer Networking
The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

None of these
cannot talk at once
can send or receive data one at a time
can do one way data transmission only
can receive and send data simultaneously

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