Compute Science (M.Sc)

Q: What type of RJ45 UTP cable is used between switches?

(a) :  Straight-through
(b) :  Crossover cable
(c) :  Crossover with a CSU/DSU
(d) :  Crossover with a router in between the two switches
(e) :  None of the above
Answer:  Crossover cable
Explanation:  To connect two switches together, you would use a RJ45 UTP crossover cable.

Q: The synchronous modems are more costly than the asynchronous modems because

(a) :  they produce large volume of data
(b) :  they contain clock recovery circuits
(c) :  they transmit the data with stop and start bits.
(d) :  they operate with a larger bandwidth
(e) :  none
Answer:  they contain clock recovery circuits
Explanation:  

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