Computer Networking
Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?

None of these
SMTP
X.25
UDP
VMTP

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Computer Networking
Terminals are required for

realtime, timesharing, and message switching
None of these
realtime, distributed processing, and manager inquiry
realtime, batch processing, and timesharing
realtime, timesharing, and distributed processing

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Computer Networking
A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?1. A crossover cable should be used in place of the straight-through cable.2. A rollover cable should be used in place of the straight-through cable.3. The subnet masks should be set to 255.255.255.192.4. A default gateway needs to be set on each host.5. The subnet masks should be set to 255.255.255.0.

3 and 4 only
2 and 5 only
2 only
1 only
1 and 5 only

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