Computer Networking
In geosynchronous orbit, satellite

remains in a fixed position related to points on earth
None of these
moves faster than the earth's rotation so that it can cover larger portion of earth.
remains in a fixed position so that as earth rotates, it can fully cover the earth
moves simultaneously

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

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Computer Networking
Which of the following technique is used for fragment?

None of these
one of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
All of these
a technique used in best-effort delivery systems to avoid endlessly looping packets
a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame

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Computer Networking
Which two of the following are true regarding the distance-vector and link-state routing protocols?1. Link state sends its complete routing table out all active interfaces on periodic time intervals.2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.3. Link state sends updates containing the state of its own links to all routers in the internetwork.4. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

2 and 3 only
1 only
None of these
3 only

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