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3 years ago

The backbone networks of the Internet are typically owned by long-distance telephone companies called

Computers and Technology

1 answer:

Aneli [31]3 years ago

5 0

Answer:

network service providers

Explanation:

The backbone networks of the Internet are typically owned by long-distance telephone companies called network service providers.

A network service provider can be defined as a business firm or company that is saddled with the responsibility of leasing or selling bandwidth, internet services, infrastructure such as cable lines to small internet service providers.

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The idea generating technique most often used in writing business letter is ?

aivan3 [116]

Hihi!

The correct answer is free writing! Free writing is a prewriting technique in which a person writes continuously for a set period of time without regard to spelling, grammar, or topic! People tend to use it because it produces raw, often unusable material, but helps writers overcome blocks of apathy and self-criticism!

I hope I helped!
-Jailbaitasmr

6 0

3 years ago

Read 2 more answers

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

Joshua wants to be a lawyer. He found the following table on the Bureau of Labor Statistics’ website to find out about the emplo

mars1129 [50]

The answer to your question is,

C) The number of lawyers will increase, so it may be difficult to find a job.

-Mabel <3

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3 years ago

Read 2 more answers

What is meant by check digit

Strike441 [17]

Answer:it is the last number in a general digit

Explanation:

6 0

3 years ago

Which button could Pamela press in the Microsoft Word spell checker to make the word “colour” instantly change to “color” whenev

Savatey [412]

One step is to right click on the word to add it to her personal dictionary. or, Press F7. Word starts the spelling and grammar checking utility. Make corrections, as appropriate, when prompted.

However, one can create a macro that would do the conversions :

1) Identify a list of words whose spelling you want to convert.2) Turn on the macro recorder. 3) Use the Replace feature to replace the spellings.4) Turn off the macro recorder.

The macro will do a conversion from one to the other. Later, as we have more words that need to be automatically replaced, we can just edit the macro and add those words.

8 0

3 years ago