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Computer Networking

Computer Networking
Who originally designed TCP/IP?

IBM
Novell
The Department of Defense
None of these
Xerox

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Computer Networking
When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?

100
150
None of these
30
80

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Computer Networking
The OCR reading unit attached to a POS terminal is called a

None of these
cursor
light pen
All of these
wand

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Computer Networking
What is the administrative distance of OSPF?

90
120
110
100

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Computer Networking
A network administrator wants to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?

show version
show flash
show memory
show buffers

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Computer Networking
Which of the following types of connections can use full duplex?1. Hub to hub2. Switch to switch3. Host to host4. Switch to hub5. Switch to host

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

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