Please help! Answer this question if you know computer science very well. I need help with computer science.

Computers and Technology

1 answer:

Kamila [148]3 years ago

4 0

Answer:

Option E is the right choice.

Explanation:

Total time = Initial time of setup + Maximum time from the list of tasks

= 3 (Setup) + 7 (Hurricane)

= 10 min

The other five tasks in the list will be finished parallel to this task having the maximum time of 7.

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Explanation:

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It takes 2 seconds to read or write one block from/to disk and it also takes 1 second of CPU time to merge one block of records.

Alexxx [7]

Answer:

Part a: For optimal 4-way merging, initiate with one dummy run of size 0 and merge this with the 3 smallest runs. Than merge the result to the remaining 3 runs to get a merged run of length 6000 records.

Part b: The optimal 4-way merging takes about 249 seconds.

Explanation:

The complete question is missing while searching for the question online, a similar question is found which is solved as below:

Part a

For optimal 4-way merging, we need one dummy run with size 0.

Merge 4 runs with size 0, 500, 800, and 1000 to produce a run with a run length of 2300. The new run length is calculated as follows $L_{mrg}=L_0+L_1+L_2+L_3=0+500+800+1000=2300$
Merge the run as made in step 1 with the remaining 3 runs bearing length 1000, 1200, 1500. The merged run length is 6000 and is calculated as follows