Which statement pertaining to system reliability is FALSE? Select one: A. Having the latest version of software products can mak
1 answer:
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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
<em>For optimal 4-way merging, we need one dummy run with size 0.</em>
- 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
- 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
<em>The resulting run has length 6000 records</em>.
Part b
<u><em>For step 1</em></u>
Input Output Time
Input Output Time is given as
Here
- L_run is 2300 for step 01
- Size_block is 100 as given
- Time_{I/O per block} is 2 sec
So
So the input/output time is 46 seconds for step 01.
CPU Time
CPU Time is given as
Here
- L_run is 2300 for step 01
- Size_block is 100 as given
- Time_{CPU per block} is 1 sec
So
So the CPU time is 23 seconds for step 01.
Total time in step 01
Total time in step 01 is 69 seconds.
<u><em>For step 2</em></u>
Input Output Time
Input Output Time is given as
Here
- L_run is 6000 for step 02
- Size_block is 100 as given
- Time_{I/O per block} is 2 sec
So
So the input/output time is 120 seconds for step 02.
CPU Time
CPU Time is given as
Here
- L_run is 6000 for step 02
- Size_block is 100 as given
- Time_{CPU per block} is 1 sec
So
So the CPU time is 60 seconds for step 02.
Total time in step 02
Total time in step 02 is 180 seconds
Merging Time (Total)
<em>Now the total time for merging is given as </em>
Total time in merging is 249 seconds seconds
Answer:
The output is attached below
Explanation:
d = {}
while True:
line = input("Enter line: ")
if len(line)==0:
break
token = line.split(' ')
for var in token:
try:
if len(var)==0:
continue
count = d[var]
d[var] = count + 1
except KeyError:
d[var] = 1
pass
for word in sorted(d):
print(word , d[word])
------------------
Answer:
Explanation:
The following code is written in Python. It creates a program that keeps printing out a menu allowing the user to create shapes. These shapes are saved in an array called shapes. Once the user decides to exit, it prints all of the shapes in the array along with their total area. The output can be seen in the attached picture below. Due to technical difficulties, I have added the code as a txt file below.
