Computer Networking
Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer:

OSI
Network operating system
Virtual Private Network
Network Server

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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.

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

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Computer Networking
Bandlimited signal is

None of these
simultaneous transmission of data to a number of stations
a signal all of whose energy is contained within a finite frequency range
transmission of signals without modulation
All of these

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Computer Networking
If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?

The highest IP address of any physical interface
The highest IP address of any logical interface
The lowest IP address of any physical interface
The lowest IP address of any logical interface

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