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Computer Networking

Computer Networking
On a class B network, how many hosts are available at each site with a subnet mask of 248?

2,046
4,094
16,382
1,022
8,190

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Computer Networking
FDDI is a

bus based network
star network
None of these
ring network
mesh network

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Computer Networking
The CCITT Recommendation X.25 specifies three layers of communications:

physical datalink and network
datalink, network and transport
application, presentation and session
None of these
Session, transport and network

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Computer Networking
The area of coverage of a satellite radio beam is known as

Beam width
Identity
None of these
Circular polarization
Footprint

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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 buffers
show flash
show version
show memory

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Computer Networking
In OSI network architecture, the dialogue control and token management are responsibilities of

session layer
network layer
transport layer
data link layer
None of these

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