Question 11 : Broadcasting delivers the content to :
1. a single client
2. all clients, regardless whether they want the content or not
3. a group of receivers who indicate they wish to receive the content
4. none of the mentioned
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Question 12 : Unicasting delivers the content to :
1. a single client
2. all clients, regardless whether they want the content or not
3. a group of receivers who indicate they wish to receive the content
4. none of the mentioned
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Question 13 : The three general methods for delivering content from a server to a client across a network are :
1. unicasting
2. multicasting
3. broadcasting
4. all of the mentioned
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Question 14 : In SCAN – EDF, requests with the same deadlines are ordered according to :
1. SCAN policy
2. EDF policy
3. FCFS policy
4. FIFO policy
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Question 15 : The EDF scheduler uses ________ to order requests according to their deadlines.
1. stack
2. disks
3. queue
4. none of the mentioned
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Question 16 : Multimedia systems require _________ scheduling to ensure critical tasks will be serviced within timing deadlines.
1. soft real time
2. hard real time
3. normal
4. none of the mentioned
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Question 17 : If several requests have different deadlines that are relatively close together, then using the SCAN – EDF algorithm :
1. the SCAN ordering will service the requests in that batch
2. the EDF ordering will service the requests in that batch
3. the FCFS ordering will service the requests in that batch
4. none of the mentioned
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Question 18 : The hybrid algorithm that combines EDF with SCAN algorithm is known as :
1. EDS
2. SDF
3. SCAN-EDF
4. None of the mentioned
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Question 19 : Servicing requests strictly according to deadline using EDF may result in :
1. lower seek times
2. lower bandwidth
3. higher seek time
4. higher bandwidth
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Question 20 : As disks have relatively low transfer rates and relatively high latency rates, disk schedulers must reduce latency times to :
1. ensure high bandwidth
2. ensure low bandwidth
3. make sure data is transferred
4. reduce data transfer speeds
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