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Kobotan [32]
2 years ago
5

Select the WRONG statement about Slide Transitions.

Computers and Technology
2 answers:
faust18 [17]2 years ago
6 0

Answer:

c. You can apply slide transitions to only a few selected slides.

Explanation:

If you want to, you <em>could </em>literally apply slide transitions to<em> </em><em>every</em> slide.

Alex Ar [27]2 years ago
5 0
C

You can apply slide transitions to any amount of slides you wanted
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A security system uses sensors at every door and window which will set off an alarm if any one of them is opened. There is also
jeka57 [31]
Well think of it like this lets say this wasn't and security system and it was a video game console and remote.
 Now the console or keypad or the main components the power on or shut off the devices and the remote or sensors are the secondary parts but they are needed to help the console or keypad figure out what they are doing.
5 0
3 years ago
Determine the factors using computer failures and defects​
ladessa [460]

Answer:

Voltage spike – This is a momentary change in the supply of electric power. It’s important to remember that the size of the transient can range from just milliseconds to longer periods of time. Even a small power glitch can damage a computer and corrupt data. If the screen goes blank during a thunderstorm, it’s likely that a voltage spike is responsible.

Circuit board fails with no visible indication of damage – This is the typical scenario: A computer goes down. A defective circuit board is suspected of the fault, but an inspection reveals no signs of physical damage. A replacement board is installed and operation resumes.

Failure to load software upgrades – Computer software often comes with various bugs, or vulnerabilities. These are simply programming mistakes, but they can make the software susceptible to viruses and glitches. When an error is discovered, the software designer sends out a “patch” that requires downloading and rebooting. Failing to upgrade the software by running the patch can lead to corruption of data.

Failure to keep virus protection up to date – There are several malware protection packages available for computer rooms or data centers. Once installed, the subscription must be maintained. One telltale sign of a malware infected computer is slow data processing.

Inadequate cooling – Computers produce heat, and the more data they process, the more heat must be eliminated. Servers, the “brains” of computers, fail under excess heat, so adequate cooling is essential.

Environment – If a computer room has a dedicated cooling system, there may be an opportunity to closely control the heat. If the cooling is shared with other equipment or the space contains offices, we often face a more challenging task. People have comfort needs different to those of computers.

Loss of Power, PDU fails – Power Distribution Units (PDU’s) are similar to power bars in homes and offices. They distribute power to different components in a computer room, and are usually located next to the server racks. PDU’s suffer a range of problems. Receptacles wear out and can be the sources of bad contacts, and moisture can lead to corrosion.

UPS batteries – Uninterruptible Power Supply (UPS) batteries are found in computer rooms. Most often, they are used to provide continuous power for a limited time, during an outage. Depending on how it’s used and the design of the battery, the life span can be as short as 4-5 years for what is considered a “10 year life” battery. Elevated room temperatures will shorten the life of any battery. Even a small facility such as a dentist office uses UPS batteries.

Transfer switch battery defective – This can be an indication that the site lacks an effective battery maintenance program. It can also be a sign that the transfer switch is “frozen” in position. Preventive maintenance could help avoid a breakdown.

Failure of standby power to synchronize (come on line) – When electric power from the grid disappears, standby power takes over in two different ways. In a small computer room, the focus is on turning computers off in a controlled manner. A fully charged UPS will provide power for 10-15 minutes to allow a computer to save its data and turn off. In a larger facility, it’s the matter of keeping cooling and power going long enough to give the standby generator an opportunity to “synchronize,” to get up to a rate of speed sufficient to power the infrastructure and continue data processing.

Diesel fuel contaminated – Most medium to large facilities have generators powered by diesel fuel, which can become contaminated and useless when a power outage occurs. Water is usually the culprit. Regular fuel testing is necessary to avoid contamination.

Storage defective – Data is stored on magnetic disks or tape. Both can be damaged during normal operation, so it’s a good practice to back up stored data on a regular basis. Backing up means creating a spare data storage. Failure of a tape or disk drive is often, but not always, proceeded by noise. Opening the unit to attempt data restoration is better left to a professional.

Sprinkler system turns on above the servers – Where a data room is protected by a water sprinkler system, a small spill can damage the electronic components. This is particularly true in cases where sprinkler heads are located directly above the servers.

Computers are crucial to business today, but there are so many things that can cause them to fail. By addressing the above common culprits, you could help reduce the overall risk of your computer systems failing.

Explantion: I hope this helps!!!!! :)

4 0
2 years ago
Select the correct answer from each drop-down menu. Which IF formulas are valid? _____ and _____ are valid IF formulas.
Lyrx [107]

Answer:

=IF(D3>50; E3; F3) AND =IF(A1>60;"Pass";"Fail")

Explanation:

An IF structure is built following this pattern:

IF(TEST;IFTRUE;IFFALSE)

These are the only options in the given drop-down menus what comply with this pattern.  All others are not following this pattern.

The computer will do the test and if the result is true will apply the IFTRUE value, otherwise will apply the IFFALSE value.

4 0
3 years ago
I need to create a method named "root positive". which will either print the square root of the number passed to it or if the nu
rjkz [21]

Answer:

Explanation:

The following code is written in Java. It is a method that calculates the square root of a number as requested. The method first checks with an IF statement if the parameter value is a positive number and then calculates the square root and prints it to the screen. Otherwise, it prints Number must not be negative. A test case has been provided in the main method and the output can be seen in the attached image below.

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.print("Enter a number of type double to calculate square root:");

       double num = in.nextDouble();

       rootPositive(num);

   }

   public static void rootPositive(double num) {

       if (num > 0) {

           System.out.println(Math.sqrt(num));

       } else {

           System.out.println("Number must not be negative.");

       }

   }

}

5 0
3 years ago
The principal objectives of computer security are to prevent unauthorized users from gaining access to resources, to prevent leg
Lena [83]

Answer:

True is the correct Answer for the above question.

Explanation:

  • Computer security is a security in which data of the computer is secured from the access of unauthorized users. It is primarily achieved to stop the access grant to the unauthorized user.
  • It means that there is an authorization point which decides that the user is authorized or not. If the user is authorized then only he can enter the system otherwise he can not able to enter the system.
  • It helps to secure the data and the data is the important point of the computer system.
  • The question also states the same which is described above. Hence true is the correct answer.

3 0
3 years ago
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