Computer Networking
Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

Paperless office
Electronic newspaper
None of these
Global network
Electronic mail

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Computer Networking
HMP (Host Monitoring Protocol) is:

None of these
a protocol that handles error and control messages
a TCP/IP high level protocol for transferring files from one machine to another.
a protocol used to monitor computers
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address

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Computer Networking
How does a host on an Ethernet LAN know when to transmit after a collision has occurred?1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.3. You can improve the CSMA/CD network by adding more hubs.4. After a collision, the station that detected the collision has first priority to resend the lost data.5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

1 and 3
2 and 5
1,3 and 4
2 and 4

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Computer Networking
A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?

IGRP has a faster update timer.
The IGRP route has fewer hops.
IGRP has a lower administrative distance.
RIP has a higher metric value for that route.

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