Computer Networking
The main difference between TCP and UDP is

TCP is an Internet protocol where as UDP is an ATM protocol
UDP is a datagram where as TCP is a connection oriented service
None of these
UDP is connection oriented where as TCP is datagram service
All of these

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Computer Networking
You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?

(config-if)# ip access-group 110 in
(config-if)# blocksales ip access-list in
(config-if)# ip access-group Blocksales in
(config)# ip access-group 110 in

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Computer Networking
The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

The network becomes less efficient
An additional token is added for every 1,000 nodes
After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device
The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500
The network becomes more efficient

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Computer Networking
Error detecting code is

a check bit appended to an array of binary digits to make the sum of all the binary digits.
the ratio of the data units in error to the total number of data units
an error-detecting code based on a summation operation performed on the bits to be checked
a code in which each expression conforms to specify rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
None of these

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