Computer Networking
Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?

Packet switch
Multistage crossbar
Banyan switch
Crossbar switch

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Computer Networking
The Internet Control Message Protocol (ICMP)

None of these
allows gateways to send error a control messages to other gateways or hosts
reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
All of these

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