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1 year ago

What type of malicious software technology is used to download and install software without the user's interaction?

Computers and Technology

1 answer:

Mnenie [13.5K]1 year ago

8 0

Answer:Auto Download Software

Explanation:

Auto Download Software is a software technology which downloads and installs software without the user's interaction

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Suppose you with had two algorithms, A and B, with growth functions fa(n)=200n2 and fb(n)=2n4. If you were to do an exact analys

anyanavicka [17]

Answer:

For values when n<32 use fb(n) else use fa(n).

See explaination for details

Explanation:

Earlier when n=1 fa(n)=2000 while fb(n)=2. for n=2 fa(n)=2000*22 =2000*4=8000 while fb(n)=2*24=2*16=32. It is observed that fa(n) requires more time than fb(n) for small values.

Now, we will see when fb(n) crosses fa(n). This can happen only when fb(n) values equals or greater than fa(n)

therefore,

2000n2<=2n4

Solving equation we get n2>=1000 which can happen when n>=32.

So for values when n<32 use fb(n) else use fa(n)

7 0

3 years ago

witch option in a presentation program contains the formatting and placeholders for all the items that appear on a slide?

Nikitich [7]

SWITCH BETWEEN OPEN PRESENTATIONS. ..... Presentation software is a program designed for the production and display of .... image file format and version number. 1. .... Option. To Do This. Normal. Contains three panes: the outline pane, the slide pane, and the notes pane. .... appear on every slide in a presentation.

7 0

3 years ago

Read 2 more answers

List any two different between primary memory and secondary memory.

nikitadnepr [17]

Answer:

Primary memory is directly accessible by Processor/CPU. Secondary memory is not directly accessible by the CPU. ... The memory devices used for primary memory are semiconductor memories. The secondary memory devices are magnetic and optical memories

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3 years ago

Read 2 more answers

NumA=2<br> for count range (5,8)<br> numA=numA+count <br> print(numA)

love history [14]

Answer:

for count in range (5,8): numA=numA+count print(numA)

Explanation:

7 0

2 years ago

In a batch operating system, three jobs are submitted for execution. Each job involves an I/O activity, CPU time and another I/O

Ilia_Sergeevich [38]

Answer:

a) CPU utilization for uniprogramming system = 18.2%

b) CPU utilization for multiprogramming system = 41.379%

Explanation:

IO time = total time – CPU time

For JOB 1

CPU time = 3ms ,

total time= 23ms

IO time = 23-3 = 20ms ,

For JOB 2

CPU time =5ms

total = 29ms

IO time = 29-5 = 24ms

For JOB 3

CPU time = 4ms

total = 14ms

IO time = 14-10 =10ms

1.) In uniprogramming system, operations are performed sequentially

CPU utilization=total CPU time / total real time

CPU utilization =(3+5+4) / (23+29+14)

CPU utilization =0.182 or 18.2%

2) In multiprogramming system, jobs wait for the CPU to get free while performing IO operations concurrently

steps followed by the os

1. IO for 1st job at 0ms

2. IO for 2nd job at 0ms

3. IO for 3rd job at 0ms

4. CPU time for 3rd job at 5ms

5. Next IO job for 3rd job at 9ms END at 14ms

6. CPU time for 1st job at 9ms

7. Next IO job for 1st job at 14ms END at 23ms

8. CPU time for 2nd job at 14ms

9. Next IO job for 2nd job at 15ms END at 29ms

CPU time is 3+5+4 =12ms

Total execution time = 29ms

CPU utilization = 12*100/29= 41.379%

5 0

2 years ago