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2 years ago

What are the factors that affect self-confidence?

Computers and Technology

1 answer:

denis-greek [22]2 years ago

5 0

Answer:

The factors that affect self confidence are not having enough faith in yourself and letting what others say about you put you down

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

$L_{merged}=L_{mrg}+L_4+L_5+L_6=2300+1000+1200+1500=6000$

The resulting run has length 6000 records.

Part b

For step 1

Input Output Time

Input Output Time is given as

$T_{I.O}=\frac{L_{run}}{Size_{block}} \times Time_{I/O \, per\, block}$

Here

L_run is 2300 for step 01
Size_block is 100 as given
Time_{I/O per block} is 2 sec

$T_{I.O}=\frac{L_{run}}{Size_{block}} \times Time_{I/O \, per\, block}\\T_{I.O}=\frac{2300}{100} \times 2 sec\\T_{I.O}=46 sec$

So the input/output time is 46 seconds for step 01.

CPU Time

CPU Time is given as

$T_{CPU}=\frac{L_{run}}{Size_{block}} \times Time_{CPU \, per\, block}$

Here

L_run is 2300 for step 01
Size_block is 100 as given
Time_{CPU per block} is 1 sec

$T_{CPU}=\frac{L_{run}}{Size_{block}} \times Time_{CPU \, per\, block}\\T_{CPU}=\frac{2300}{100} \times 1 sec\\T_{CPU}=23 sec$

So the CPU time is 23 seconds for step 01.

Total time in step 01

$T_{step-01}=T_{I.O}+T_{CPU}\\T_{step-01}=46+23\\T_{step-01}=69 sec\\$

Total time in step 01 is 69 seconds.

For step 2

Input Output Time

Input Output Time is given as

$T_{I.O}=\frac{L_{run}}{Size_{block}} \times Time_{I/O \, per\, block}$

Here

L_run is 6000 for step 02
Size_block is 100 as given
Time_{I/O per block} is 2 sec

$T_{I.O}=\frac{L_{run}}{Size_{block}} \times Time_{I/O \, per\, block}\\T_{I.O}=\frac{6000}{100} \times 2 sec\\T_{I.O}=120 sec$

So the input/output time is 120 seconds for step 02.

CPU Time

CPU Time is given as

$T_{CPU}=\frac{L_{run}}{Size_{block}} \times Time_{CPU \, per\, block}$

Here

L_run is 6000 for step 02
Size_block is 100 as given
Time_{CPU per block} is 1 sec

$T_{CPU}=\frac{L_{run}}{Size_{block}} \times Time_{CPU \, per\, block}\\T_{CPU}=\frac{6000}{100} \times 1 sec\\T_{CPU}=60 sec$

So the CPU time is 60 seconds for step 02.

Total time in step 02

$T_{step-02}=T_{I.O}+T_{CPU}\\T_{step-02}=120+60\\T_{step-02}=180 sec\\$

Total time in step 02 is 180 seconds

Merging Time (Total)

Now the total time for merging is given as

$T_{merge}=T_{step-01}+T_{step-02}\\T_{merge}=69+180\\T_{merge}=249 sec\\$

Total time in merging is 249 seconds seconds

5 0

3 years ago

Which types of computers are used by large businesses

aniked [119]

answer:

Mainframe computers are used by large companies and organisations to perform critical tasks that involve bulk data processing like transaction processing, census information, statistical data and so on. They consist of extensive input and output facilities, are very stable and dependable and handle millions of transactions every day

Explanation:

4 0

2 years ago

Using filtering as a strategy to deal with information overload requires Group of answer choices reviewing all unsolicited infor

STALIN [3.7K]

Answer:

The answer is "Choice B"

Explanation:

Please find the complete question in the attached file.

A filter is a tool for removing undesirable parts. Eliminate solid from a fluid, for example. The filter may mean the filter action: it could be used as a verb. When the filter is mentioned, various branches of science and technology often refer to a certain type of device. Filtering tries to decide the data you need and the data you have to address the overload.

4 0

2 years ago

What refers to the protocolâ s ability to ensure that data hasnâ t been modified in any way?

Tamiku [17]

Answer:

Option (b) Integrity

Explanation:

Data Integrity refers to the data which is not modified over the process, system.
Data Integrity here refers to which is not corrupted over the system in any way.
Throughout the life cycle of the process, system the data is intact and can be trusted for the future use.So, option (b) Integrity is the correct option.
Option (a) Confidentiality means the data that is kept secret, private but that doesn't mean it is not modified. So, option (a) confidentiality is wrong option.
Option (c) Authentication means the user is authenticated to use the data. It means the user has access to the data or not.So, option (c) is wrong option.
Option (d) Auditing means to examine, inspect a thing to find it fit for a purpose. Here, data auditing means verifying, inspecting,assessing the quality of data for a process.So, option (d) is wrong option.

3 0

2 years ago

Meaning of sperm count

yulyashka [42]

a measure of the number of spermatozoa per ejaculation or per measured amount of semen, used as an indication of a man's fertility.

5 0

2 years ago

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