Cc's CompTIA Essentials Mini Quiz

1.

What is a Peltier device?
- A.
  
  Electronic component that gets colder when a voltage is applied.
- B.
  
  Slot
- C.
  
  Bus
- D.
  
  None of the above
Correct Answer
A. Electronic component that gets colder when a voltage is applied.

Explanation
A Peltier device is an electronic component that exhibits the Peltier effect, which is the phenomenon of getting colder when a voltage is applied. This effect is achieved by passing an electric current through two dissimilar conductors, causing a temperature difference between them. This device is commonly used for cooling applications, such as in refrigeration systems or electronic devices that require temperature control.

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2.

POST stands for:

Correct Answer
Power-On-Self-Test
power-on-self-test

Explanation
POST stands for Power-On-Self-Test or power-on-self-test. This is a diagnostic testing process that a computer system undergoes when it is powered on. The purpose of the POST is to check the hardware components of the computer system to ensure they are functioning correctly before the operating system is loaded. This test helps identify any potential hardware issues or failures that may prevent the computer from booting up properly.

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3.

A keyboard error is how many beeps when detected by POST?

Correct Answer
3

Explanation
When a keyboard error is detected by POST (Power-On Self Test), it typically results in three beeps. This is a common indication that there is an issue with the keyboard, such as a connection problem or a malfunctioning key. The three beeps serve as an alert to the user and can help diagnose and troubleshoot the problem.

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4.

True of False? Data bus is the bus between the CPU and the video circuitry to display data.

Correct Answer
False
false

Explanation
The given answer is correct. The statement is false. The data bus is not the bus between the CPU and the video circuitry to display data. The data bus is responsible for transferring data between the CPU and other components such as memory and input/output devices. The bus between the CPU and the video circuitry is typically referred to as the video bus or the graphics bus.

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1
4 1
5.

How many bits does a PC/AT bus has?
- A.
  
  16
- B.
  
  28
- C.
  
  None
- D.
  
  32
Correct Answer
A. 16

Explanation
A PC/AT bus has 16 bits. This means that it can transmit 16 bits of data simultaneously.

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6.

True or False? Baud is a measure of signal changes per second.

Correct Answer
True
true

Explanation
Baud is a measure of signal changes per second. It is used to measure the rate at which data is transmitted over a communication channel. The baud rate indicates the number of times the signal can change per second, which directly corresponds to the number of bits that can be transmitted per second. Therefore, the statement "Baud is a measure of signal changes per second" is true.

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7.

If there is no sound in speaker, what should you check first? Settings or install an Expansion Card?

Correct Answer
Settings
settings

Explanation
The first thing to check when there is no sound in the speaker is the settings. It is possible that the sound settings on the device are either muted or turned down too low. By checking the settings, you can ensure that the sound is enabled and at an audible level. Installing an expansion card would not be the first step to take as it is a hardware-related solution and may not be necessary if the issue is simply with the settings.

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8.

True or False? Fat 32 has a better security feature than NTFS.

Correct Answer
False
false

Explanation
The statement is false. NTFS (New Technology File System) has better security features compared to FAT32 (File Allocation Table). NTFS supports file-level security, encryption, and permissions, which allow users to control access to files and folders. On the other hand, FAT32 does not have built-in security features and does not provide the same level of protection for data. Therefore, NTFS is considered to have better security features than FAT32.

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9.

True or False? Does ScanDisk fixes physical errors and damage files.

Correct Answer
False
false

Explanation
ScanDisk does not fix physical errors or damaged files. ScanDisk is a utility program used to check and fix errors on a computer's hard drive. It primarily focuses on fixing logical errors, such as file system errors, bad sectors, and cross-linked files. Physical errors, on the other hand, relate to hardware issues and require specialized tools or professional assistance to repair. Additionally, ScanDisk does not have the capability to repair or recover damaged files. It mainly aims to ensure the integrity and stability of the file system.

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10.

What is the command that allows you to check if their is connectivity between a PC and another PC?

Correct Answer
ping
Ping

Explanation
The command "ping" or "Ping" allows you to check the connectivity between a PC and another PC. By using this command, you can send a network request to the target PC and receive a response. If you receive a response, it indicates that there is connectivity between the two PCs.

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11.

What are the Windows levels of groups?

Correct Answer
user, admin and guest
admin, guest and user
guest, user and admin

Explanation
The correct answer is "guest, user and admin". This is because the question is asking for the Windows levels of groups, and in Windows, the order of group levels is typically guest, user, and admin.

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12.

True or False? If a DVD can't be played on your PC, you should check for a software that allows you to do this.

Correct Answer
True
true

Explanation
If a DVD cannot be played on a PC, it is recommended to check for a software that allows playing DVDs. This is because PCs do not always come pre-installed with DVD playback software. By installing appropriate software, the PC will be able to read and play DVDs. Therefore, the statement "True" is correct.

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13.

PCI bus is a ___-bit bus

Correct Answer
32

Explanation
The PCI bus is a 32-bit bus because it transfers data in 32-bit chunks. This means that it can transfer 32 bits of data at a time between the computer's processor and peripheral devices connected to the PCI bus. This allows for faster data transfer and improved performance compared to a bus with a smaller bit width.

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Cc's CompTIA Essentials Mini Quiz

What is a Peltier device?

POST stands for:

A keyboard error is how many beeps when detected by POST?

True of False? Data bus is the bus between the CPU and the video circuitry to display data.

How many bits does a PC/AT bus has?

True or False? Baud is a measure of signal changes per second.

If there is no sound in speaker, what should you check first? Settings or install an Expansion Card?

True or False? Fat 32 has a better security feature than NTFS.

True or False? Does ScanDisk fixes physical errors and damage files.

What is the command that allows you to check if their is connectivity between a PC and another PC?

What are the Windows levels of groups?

True or False? If a DVD can't be played on your PC, you should check for a software that allows you to do this.

PCI bus is a ___-bit bus