A cable that connects the computer to the printer is an example of<br> A.hardware<br> B.software

Describe a situation in which you have experienced harm as a consequence of a failure of computer security. Was the failure mali

frutty [35]

Answer: The goals of computer security are to protect computers and users from data theft or loss as well as damage to any part of the computer.

Explanation: Common means of achieving computer security are firewalls, anti-virus software and this can fail due to hardware problems or weaknesses that prevent malicious attacks.

To answer this question, think of a time when you experienced any one of these. For example, personally, I was once an unfortunate victim of a general malicious attack that took advantage of a weakness in my anti-virus software. After clicking on a link on a dodgy website, a virus was installed on my computer. My computer finally crashed, without any hope of restarting it. I lost all my data and I had to buy a new computer. This was a malicious attack.

However, sometimes people can be specifically targeted to steal their data or monitor their activities.

7 0

3 years ago

2. Consider a 2 GHz processor where two important programs, A and B, take one second each to execute. Each program has a CPI of

allsm [11]

Answer:

program A runs in 1 sec in the original processor and 0.88 sec in the new processor.

So, the new processor out-perform the original processor on program A.

Program B runs in 1 sec in the original processor and 1.12 sec in the new processor.

So, the original processor is better then the new processor for program B.

Explanation:

Finding number of instructions in A and B using time taken by the original processor :

The clock speed of the original processor is 2 GHz.

which means each clock takes, 1/clockspeed

= 1 / 2GH = 0.5ns

Now, the CPI for this processor is 1.5 for both programs A and B. therefore each instruction takes 1.5 clock cycles.

Let's say there are n instructions in each program.

therefore time taken to execute n instructions

= n * CPI * cycletime = n * 1.5 * 0.5ns

from the question, each program takes 1 sec to execute in the original processor.

therefore

n * 1.5 * 0.5ns = 1sec

n = 1.3333 * 10^9

So, number of instructions in each program is 1.3333 * 10^9

the new processor :

The cycle time for the new processor is 0.6 ns.

Time taken by program A = time taken to execute n instructions

= n * CPI * cycletime

= 1.3333 * 10^9 * 1.1 * 0.6ns

= 0.88 sec

Time taken by program B = time taken to execute n instructions

= n * CPI * cycletime

= 1.3333 * 10^9 * 1.4 * 0.6

= 1.12 sec

Now, program A runs in 1 sec in the original processor and 0.88 sec in the new processor.

So, the new processor out-perform the original processor on program A.

Program B runs in 1 sec in the original processor and 1.12 sec in the new processor.

So, the original processor is better then the new processor for program B.

5 0

3 years ago

You are going to write a program for Computer test which will read 10 multiple choice questions from a file, order them randomly

sweet-ann [11.9K]

Answer:

Code is too large , i attached a source file below and also a text file from where i get Questions

Explanation:

6 0

3 years ago

This is due in like an hour but I'm confused so please do lend assistance

blagie [28]

Yes you do have to program it first.

4 0

3 years ago

You recently completed a network overhaul over the weekend. Everything seems to be functioning properly until you receive a swar

ZanzabumX [31]

Answer:

Network switch has been disconnected or switched off

Explanation:

An organization networking can be done by using several switches, routers, modems, etc. A network switch works between modem and systems, connecting the systems to the network.

A network switch is a multi-port switch that connects multiple devices to the network. mostly every floor has a network switch connected with the floor systems.

When a system is connected to switch, its indicator light on NIC is active. but as per the scenario, no system has active indicator lights on NIC, which means that there is some problem with the switch or switch is powered off.

4 0

3 years ago

A cable that connects the computer to the printer is an example of A.hardware B.software