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Computer Networking

Computer Networking
What is the loopback address?

None of these
255.255.0.0
255.0.0.0
255.255.255.255.0
127.0.0.1

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Computer Networking
How many non-overlapping channels are available with 802.11a?

3
23
12
40

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Computer Networking
Which command will delete the contents of NVRAM on a router?

delete startup-config
erase NVRAM
delete NVRAM
erase start

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Computer Networking
A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?

64 kbps.
None of these
8 kbps
128 kbps
32 kbps

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Computer Networking
Which statement(s) about IPv4 and IPv6 addresses are true? 1. An IPv6 address is 32 bits long, represented in hexidecimal. 2. An IPv6 address is 128 bits long, represented in decimal. 3. An IPv4 address is 32 bits long, represented in decimal. 4. An IPv6 address is 128 bits long, represented in hexidecimal.

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

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Computer Networking
In a _____ topology, if there are n devices in a network, each device has n - 1 ports for cables.

ring
star
mesh
None of these
bus

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