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3 years ago

Can you make copies of classified documents provided you alert others?

Computers and Technology

1 answer:

Greeley [361]3 years ago

6 0

Yes you can make copies of classified documents provided you...

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By definition, what is the process of reducing security exposure and tightening security controls?

saw5 [17]

Hardening is the technique of reducing security exposure and tightening security controls of software and network devices.

Security is a major concern, when connecting over a network. Through hardening, security of a network is protected from vulnerable activities. Hardening reduces exposures associated with security and provides tight controls for it.

Hardening is typically a collection of tools and techniques that are used to decrease vulnerability in computer software, applications, network devices and infrastructure. The main goal of hardening is to protect security by identifying and eliminating superfluous programs, applications, permissions and access, which in turn, reduces the chances that attackers and malware will gain access over the network ecosystem.

You can learn more about hardening at

brainly.com/question/27912668

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7 0

2 years ago

What is the purpose of quick access toolbar?

Flauer [41]

Answer:

Toolbar grants direct (quick) access to a set of desired commands in a toolbar that is always visible no matter which ribbon tab is selected.

Explanation:

Given

8 0

2 years ago

Brian gathers data from his classmates about the computers they own such as the type of operating system, the amount of memory,

Stells [14]

Incomplete question. The Options read;

A. The year purchased

B. Brian's classmates

C. The amount of memory

D. The type of operating system

Answer:

B. Brian's classmates

Explanation:

Remember, the question is concerned about "the individuals" in the data set, so the year they purchased their computer, neither is the amount of memory of the computer and the type of operating system can be classified as individuals in the data set.

Hence, we can correctly say, only Brian's classmates are the individuals in this data set.

4 0

2 years ago

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 tool is used to view stars in galaxies far from the Milky Way?

Rom4ik [11]

The tool iused to view stars in galaxies far from the Milky Way is the B. Hubble Space Telescope. This telescope is one of the largest telescopes to be launched in space, and has contributed a vast amount of discoveries and data that are valuable in astronomical research. The telescope is able to capture image intense high-resolution images, capturing entities from large distances.

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3 years ago