ITE 8 IT Essentials 8.0 Chapter 3 Exam Answers ITE 8.01 Module 3 – Advanced Computer Hardware

ITE 8 – ITE 8.01 | IT Essentials 8.0 Chapter 3 Exam Answers Version 8.0 | Full 100% 2024 Cisco NetAcad

This is a collection of NetAcad Cisco ITE 8, and ITE 8.01 (IT Essentials 8.0 also known as ITE version 8.0) in ITE 8 Chapter 3 Exam Answers from Cisco NetAcad. All Questions and Answers are useful for practice for ITE 8 Chapter 3 Exam Answers 2024. It’s also called ITE v8, ITE v8.01 Chapter 3 Exam Answers. While you exam, you will meet 22 questions randomly selected from these questions and answers.

IT Essentials (Version 8.0) – IT Essentials 8.0 Chapter 3 Exam Answers Full 100% 2024

1. Match the RAID technology terms to the description. (Not all options are used.)

   

   • parity ==> provides basic error checking and fault tolerance by storing checksums separately from data
   • striping ==> enables data to be distributed across multiple drives
   • mirroring ==> stores the same data on multiple drives simultaneously
   • double parity ==> provides fault tolerance for up to two failed drives
     

     Explanation & Hint: Parity is usually matched with the description “provides basic error checking and fault tolerance by storing checksums separately from data.” This is characteristic of RAID levels like RAID 5 or RAID 6, where parity data is used to recover data in case of a drive failure. Striping corresponds to “enables data to be distributed across multiple drives.” This is a feature of RAID 0, which improves performance by spreading data across several disks, allowing for higher data throughput. Mirroring is described as “stores the same data on multiple drives simultaneously.” This refers to RAID 1, where all data is written identically to two or more disks, providing redundancy for fault tolerance. Double parity provides fault tolerance for up to two failed drives. This would be characteristic of RAID 6, which extends RAID 5 by adding another parity block, thus allowing it to withstand the failure of two drives without data loss.

2. Which two components are commonly replaced when a computer system with a newer motherboard is being upgraded? (Choose two.)

   • RAM
   • hard disk drive
   • CPU
   • optical drive
   • CMOS battery
   • adapter card

   • Explanation & Hint: When a motherboard is being upgraded to a newer version, both the CPU and RAM are commonly upgraded to support the motherboard compatibility requirements.

3. What are two reasons for installing a second hard disk drive inside an existing computer? (Choose two.)

   • to support a RAID array
   • to store BIOS configuration settings
   • to store the system swap file
   • to increase CPU speed
   • to allow access to a secondary display output

   • Explanation & Hint: The common reasons to install a second hard disk drive in a computer include: 1) increase storage space, 2) increase hard drive speed, 3) install a second operating system, 4) store the system swap file, 5) provide fault tolerance, and 6) backup the original hard drive.

4. A technician has just finished assembling a new computer. When the computer is powered up for the first time, the POST discovers a problem. How does the POST indicate the error?

   • It issues a number of short beeps.
   • The LED on the front of the computer case flashes a number of times.
   • It places an error message in the BIOS.
   • It locks the keyboard.

   • Explanation & Hint: When a computer is powered on, the POST is conducted by the BIOS to check the hardware components and ensure everything is functioning correctly before the system boots up. If POST encounters an error before the video card is initialized or if the computer doesn’t have a working video card, it can’t display a message on the screen. Instead, the BIOS uses beep codes—a series of beeps that vary in number and length—to indicate the type of error. Different BIOS manufacturers have different beep codes. For example, one short beep might mean the computer is booting properly, whereas a series of long or short beeps might signify memory or motherboard issues. The user can refer to the motherboard manual or the manufacturer’s website for an explanation of the specific beep codes for their system. This is an effective way to communicate critical problems early in the boot process when visual output is not available.

5. What is a function of the BIOS?

   • enables a computer to connect to a network
   • provides temporary data storage for the CPU
   • performs a check on all internal components
   • provides graphic capabilities for games and applications

   • Explanation & Hint: The BIOS, which stands for Basic Input/Output System, has several functions in a computer system, but its primary role during the boot-up process is to initialize and test the system’s hardware components and to load the operating system. This initial check is called the Power-On Self-Test (POST). During POST, the BIOS checks the computer’s internal components such as the CPU, memory, and storage devices to ensure they are functioning correctly before the operating system loads. If a problem is detected, the BIOS can alert the user with an error message or a series of beeps, as previously mentioned.

6. A technician has assembled a new computer and must now configure the BIOS. At which point must a key be pressed to start the BIOS setup program?

   • before the computer is powered on
   • during the Windows load process
   • during the POST
   • after the POST, but before Windows starts to load

   • Explanation & Hint: To enter the BIOS setup program, you must press the proper key or key sequence during POST. Many motherboards will display graphics while the computer is checking hardware and waiting for the proper key press for the user to enter the BIOS.

7. How does an inline UPS protect computer equipment against electrical power brownouts and blackouts?

   • by grounding excess electrical voltage
   • by using a battery to supply a constant level of voltage
   • by switching from main power to a standby power source
   • by stopping the flow of voltage to the computer

   • Explanation & Hint: Uninterruptible power supplies (UPS) contain a battery which is constantly providing a consistent level of voltage to the computer.

8. Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?

   • brownout
   • sag
   • spike
   • surge

   • Explanation & Hint: Surges and spikes are increased voltage levels. A sag is a short duration reduction in line voltage while a brownout is a reduction in voltage that occurs for an extended period of time.

9. How should a technician dispose of an empty inkjet printer cartridge?

   • Refill it.
   • Throw it away.
   • Follow local regulations for disposal.
   • Give it back to the customer.

   • Explanation & Hint: Refilling used inkjet cartridges is not recommended, as it may void the printer warranty and could leak ink, damaging the printer. Printer cartridges should be recycled, following the procedures established for recycling by the manufacturer. Because they are an environmental hazard, they should never be thrown away.

10. What makes CRT monitor disposal dangerous for a technician who is handling the disposal?

    • potential breathing hazards
    • potential explosive materials
    • potential residual high voltage
    • potential health-damaging chemicals

    • Explanation & Hint: CRT monitors do contain lead, barium, and rare earth metals that can be dangerous to the environment if not disposed of properly, but the danger to the technician is in the high voltage levels that can be stored even after powering off the monitor and disconnecting the power cord. A technician might be disposing of a CRT monitor that has the cover ajar or removed and be exposed to the high voltage.

11. Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices?

    • FireWire
    • DVI
    • HDMI
    • USB
    • VGA

    • Explanation & Hint: High definition multimedia interface, or HDMI, was originally a television standard. However, because it has many digital features, it is also a popular interface to connect audio and video devices to computers.

12. What is indicated by the contrast ratio of a monitor?

    • the difference in the intensity of light between the brightest white and darkest black that can be displayed
    • how often the picture image is refreshed
    • the total number of pixels that make up the picture
    • the ratio of the horizontal and vertical viewing areas of the monitor

    • Explanation & Hint: Contrast ratio is one of many factors that is used to describe the resolution of a monitor. Contrast ratio is a measure of the difference in intensity between white and black areas of the picture. A higher contrast ratio means the monitor can produce pictures with brighter whites and darker blacks.

13. What electrical unit refers to the number of electrons moving through a circuit per second?

    • current
    • voltage
    • resistance
    • power

    • Explanation & Hint: Current refers to the amount of electrons moving through a circuit per second and is measured in amperes or amps.

14. What characteristic of electricity is expressed in watts?

    • the amount of work required to move electrons through a circuit
    • the resistance to the flow of current in a circuit
    • the amount of electrons flowing through a circuit per second
    • the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second

    • Explanation & Hint: Watts is the unit used to measure the electrical power. Power refers to the work required to move electrons through a circuit multiplied by the number of electrons flowing through a circuit per second.

15. Which is a BIOS security feature that can prevent data from being read from a hard drive even if the hard drive is moved to another computer?

    • drive encryption
    • RAID
    • secure boot
    • BIOS passwords

    • Explanation & Hint: There are several commonly available BIOS security features. Drive encryption is used to encrypt hard drives to prevent data access. Secure boot ensures that devices will only boot a trusted operating system. BIOS passwords allow different levels of BIOS access. RAID is not a BIOS security feature but rather provides redundancy and fault tolerance by using multiple hard drives.

16. What data is stored in the CMOS memory chip?

    • BIOS settings
    • Windows configuration settings
    • user login information
    • device drivers

    • Explanation & Hint: The complementary metal-oxide semiconductor (CMOS) chip is a small memory chip located on the motherboard that is used to store saved BIOS settings.

17. What is the purpose of LoJack?

    • It allows the owner of a device to remotely locate, lock, or delete all files from the device.
    • It ensures that a computer will only boot an operating system that is trusted by the motherboard manufacturer.
    • It provides passwords for different levels of access to the BIOS.
    • It encrypts data on hard drives to prevent access without the correct password.

    • Explanation & Hint: The LoJack security feature protects against data theft if a device is stolen by allowing the owner to locate, lock, or delete all files on the device.

18. What is one purpose of adjusting the clock speed within the BIOS configuration settings?

    • to allow a computer to run multiple operating systems in files or partitions
    • to change the order of the bootable partitions
    • to disable devices that are not needed or used by the computer
    • to allow the computer to run slower and cooler

    • Explanation & Hint: The CPU clock speed can be adjusted up or down within the BIOS configuration settings. By lowering the clock speed, a CPU can run slower and cooler. Increasing the CPU clock speed makes the computer run faster and hotter.

19. Which security feature in modern CPUs protects memory areas that contain part of the operating system from malware attacks?

    • encryption
    • TPM
    • execute disable bit
    • LoJack

    • Explanation & Hint: The execute disable option can be turned on, if the feature is supported by the OS, to prevent malicious code from being executed inside a specific memory area that contains operating system files.

20. Which statement describes the capability of an HDMI version 1.4 type A port?

    • It can be used for 4K and 8K resolutions.
    • It supports high premium speeds of up to 48 Gbps.
    • It can change a monitor’s refresh rate to match the source device output rate.
    • It uses a 20-pin connector for delivering high-bandwidth video and audio signals.

    • Explanation & Hint: HDMI version 1.4 type A port is a standard HDMI port. It can change a monitor’s refresh rate to match the source device output rate.

21. What is the advantage of having a redundant power supply?

    • It can be used to power high-performance graphic cards.
    • It provides a Field Replacement Unit for immediate replacement in the event of a power supply failure.
    • It allows for the replacement of the faulty power supply without loss of power to the server.
    • It can be linked to increase the wattage required for the newer processors.

    • Explanation & Hint: A redundant power supply is hot-swappable. This allows the faulty power supply to be replaced without losing power to the computer.

22. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 6?

    • 3
    • 4
    • 6
    • 7

    • Explanation & Hint: RAID 6 requires a minimum of four drives. It is similar to RAID 5 but with an additional parity block. This means it can withstand the failure of two drives simultaneously without data loss. The extra parity allows for more robust fault tolerance by spreading the parity across all drives in the array.

23. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 10?

    • 4
    • 5
    • 6
    • 7

    • Explanation & Hint: RAID 10, also known as RAID 1+0, is a combination of RAID 1 (mirroring) and RAID 0 (striping). To configure RAID 10, you need at least two mirrored pairs. Since each mirrored pair requires two drives, the minimum number of drives required to set up RAID 10 is four.

24. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 10?

    • 4
    • 6
    • 10
    • 7

    • Explanation & Hint: For RAID 10, which combines the features of RAID 1 (mirroring) and RAID 0 (striping), the minimum number of drives required is four. This allows for two mirrored pairs, which are then striped together, providing both redundancy and performance benefits. RAID 10 can be expanded with more drives, but they must be added in pairs to maintain the RAID 10 structure.

25. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 1?

    • 2
    • 6
    • 10
    • 7

    • Explanation & Hint: RAID 1 is a mirrored configuration where all data written to one drive is simultaneously written to another, creating a mirror image. This level of RAID only requires a minimum of two drives to implement.

26. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 5?

    • 3
    • 7
    • 6
    • 10

    • Explanation & Hint: RAID 5 requires a minimum of three drives. It uses striping with parity, which means that data and parity (used for recovery in the event of a drive failure) are distributed across all the drives in the array. This configuration allows for the failure of one drive without the loss of data.

27. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 5?

    • 3
    • 1
    • 7
    • 10

    • Explanation & Hint: RAID 5 requires at least three drives to be configured. It uses block-level striping with distributed parity, which means data and parity information are spread across all the drives, allowing for the failure of one drive without loss of data or access to data.

28. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 6?

    • 3
    • 4
    • 7
    • 10

    • Explanation & Hint: RAID 6 requires a minimum of four drives. It extends RAID 5 by using two parity blocks instead of one, offering enhanced fault tolerance by allowing for the failure of up to two drives simultaneously without data loss.

29. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 6?

    • 3
    • 4
    • 5
    • 6

    • Explanation & Hint: RAID 6 requires a minimum of four drives. It uses block-level striping with double parity, providing fault tolerance by allowing up to two simultaneous drive failures without data loss. This increased redundancy makes RAID 6 a popular choice for critical data storage systems.

30. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 10?

    • 4
    • 5
    • 1
    • 6

    • Explanation & Hint: RAID 10 (also known as RAID 1+0) requires a minimum of four drives. It combines the features of RAID 1 (mirroring) and RAID 0 (striping), providing both high performance and data redundancy. RAID 10 arrays are created by striping data across pairs of mirrored drives, requiring at least two pairs to set up.

31. A data analyst has asked a technician to help protect locally stored data by installing a RAID. What is the minimum number of drives the technician has to install if configuring a RAID level 1?

    • 2
    • 6
    • 1
    • 5

    • Explanation & Hint: RAID 1 requires a minimum of two drives. It works by mirroring data across two or more drives, providing redundancy by keeping an exact copy of all the data on each drive. This configuration allows for the failure of one drive without the loss of data, as all data is preserved on the remaining drive(s).

32. A technician has been asked to configure several computers with RAID. The customer needs protection if one drive fails, fast access, and drive capacity. Which RAID should the technician install?

    • RAID 5
    • RAID 4
    • RAID 2
    • RAID 3

    • Explanation & Hint: RAID 5 is the best choice for the customer’s requirements. It provides data protection by distributing parity information across all drives in the array, allowing for the recovery of data in the event of a single drive failure. RAID 5 also offers fast access times due to its striping mechanism, where data is split into blocks and spread across multiple drives, allowing for higher read speeds. Additionally, RAID 5 offers a good balance between storage capacity and redundancy; it only sacrifices the equivalent of one drive’s capacity for parity data, maximizing the available storage space compared to the total number of drives in the array.

33. A technician has been asked to configure several computers with RAID. The customer needs protection if two drive fails and wants as much drive capacity as possible. Which RAID should the technician install?

    • RAID 6
    • RAID 7
    • RAID 2
    • RAID 3

    • Explanation & Hint: RAID 6 is the best option for the customer’s needs. It provides fault tolerance by allowing for the failure of up to two drives simultaneously without data loss, thanks to its dual parity system. RAID 6 uses block-level striping with two sets of parity data distributed across all drives in the array. While it offers less usable capacity than RAID 5 because it uses the space equivalent to two drives for parity information, it still maximizes drive capacity efficiently compared to the total number of drives in the array. RAID 6 is ideal for systems where data availability and protection are critical, and the loss of two drives can be tolerated without disrupting data accessibility. RAID 7, RAID 2, and RAID 3 are either proprietary, not commonly used, or do not meet the specific requirements of tolerating two drive failures while maximizing capacity.

34. A technician has been asked to configure several computers with RAID. The customer needs protection if two drive fails and wants as much drive capacity as possible. Which RAID should the technician install?

    • RAID 6
    • RAID 7
    • RAID 8
    • RAID 4

    • Explanation & Hint: RAID 6 is the appropriate choice for a setup requiring protection against the failure of two drives while also aiming to retain as much drive capacity as possible. It employs block-level striping with double parity, ensuring data protection even if two drives fail simultaneously. Unlike RAID 4, which uses a single dedicated parity drive (thus a single point of failure if two drives fail), RAID 6 distributes parity across all drives, enhancing fault tolerance. RAID 7 and RAID 8 are not standard RAID levels recognized in the common RAID configurations and do not specifically address the need for dual-drive failure protection along with maximizing storage capacity. RAID 6 offers a good balance between reliability, fault tolerance, and efficient use of storage space.

35. A technician has been asked to configure several computers with RAID. The customer needs protection for one drive failure and only has room in the computer for two drives. Which RAID should the technician install?

    • RAID 1
    • RAID 7
    • RAID 8
    • RAID 4

    • Explanation & Hint: RAID 1 is the best option given the customer’s requirements. It mirrors data across two drives, providing redundancy and protection in case one of the drives fails. With only room for two drives in the computer, RAID 1 allows for the entire capacity of one drive to be duplicated on the other, ensuring that data is preserved even if one drive stops working. RAID 1 is a straightforward and effective choice for systems limited to two drives where data redundancy is a priority. RAID 7, RAID 8, and RAID 4 are not suitable or standard options in this scenario; RAID 7 and RAID 8 do not exist as recognized RAID levels in standard RAID configurations, and RAID 4, which focuses on block-level striping with a dedicated parity drive, is not applicable to a two-drive system focused on redundancy.

36. A technician has been asked to configure several computers with RAID. The customer wants RAID and full drive capacity, but does not care about a drive failure, because all data is constantly backed up. The computer where the RAID is to be installed only has room for two drives. Which RAID should the technician install?

    • RAID 0
    • RAID 8
    • RAID 7
    • RAID 4

    • Explanation & Hint: RAID 0 is the best choice for the customer’s situation. It stripes data across all drives in the array, which can improve performance and provides full use of the drive capacities. Since the customer does not require redundancy for drive failures—due to constant backups of all data—RAID 0 meets the need for maximizing storage space without concern for data loss. In a two-drive setup, RAID 0 will utilize the entire capacity of both drives but will not offer any data protection if one drive fails. RAID 8 and RAID 7 are not standard RAID levels, and RAID 4 focuses on block-level striping with a dedicated parity drive, which does not align with the customer’s requirement for full drive capacity without redundancy.

37. A technician has been asked to configure several computers with RAID. The customer wants data to be stored on two drives that are used to maximum capacity and does not care if a single drive fails, because data is backed up hourly. Which RAID should the technician install?

    • RAID 0
    • RAID 8
    • RAID 7
    • RAID 4

    • Explanation & Hint: RAID 0 is the appropriate choice for this scenario. It stripes data across all drives in the array, effectively utilizing the full capacity of each drive. Since the customer does not require redundancy for a single drive failure—due to hourly data backups—RAID 0 meets the requirement for maximizing storage space. RAID 0 offers no data protection in the event of a drive failure, but this concern is mitigated by the customer’s robust backup strategy. RAID 8 and RAID 7 are not recognized as standard RAID levels in typical RAID configurations, and RAID 4, which involves block-level striping with a single dedicated parity drive, does not provide the full drive capacity utilization that the customer desires.

38. A technician has been asked to configure several computers with RAID. The customer wants data to be stored on three drives and protection for one drive failure. Which RAID should the technician install?

    • RAID 5
    • RAID 2
    • RAID 8
    • RAID 7

    • Explanation & Hint: RAID 5 is the most suitable option for the customer’s needs. It uses block-level striping with distributed parity, allowing data and parity information to be spread across all drives in the array. This configuration provides the customer with the desired protection against the failure of a single drive, as the data can be reconstructed from the remaining drives using the parity information. RAID 5 also efficiently utilizes the storage capacity of the drives, only sacrificing the equivalent of one drive’s capacity for parity, thus meeting the requirement for storing data on three drives with some level of redundancy. RAID 2, RAID 8, and RAID 7 are not standard or commonly used RAID levels for such requirements. RAID 2 is an obsolete technology that used bit-level striping with Hamming-code parity, and RAID 7 and RAID 8 are not recognized in the set of standard RAID levels.

39. A technician has been asked to configure several computers with RAID. The customer wants three drives to be used and protection if one drive fails. Which RAID should the technician install?

    • RAID 5
    • RAID 2
    • RAID 4
    • RAID 3

    • Explanation & Hint: RAID 5 is the optimal choice for the customer’s requirements. It uses block-level striping with distributed parity, allowing for the storage of data across three or more drives with the added benefit of fault tolerance. If one drive fails, the system can reconstruct the lost data from the parity information stored across the remaining drives. RAID 5 efficiently utilizes the storage capacity of all the drives in the array, minus the equivalent of one drive’s capacity used for parity. This setup offers a good balance between storage capacity, performance, and data protection, making it suitable for environments where both performance and data redundancy are important. RAID 2, RAID 4, and RAID 3 are not as commonly used or recommended for general purposes: RAID 2 uses bit-level striping with Hamming-code error correction and is considered obsolete. RAID 4 uses block-level striping with a dedicated parity drive, which can create a bottleneck at the parity drive. RAID 3 uses byte-level striping with a dedicated parity drive and is not commonly used in practice due to its inefficiency and specialized requirements.

40. A technician has been asked to configure several computers with RAID. The customer wants to incorporate mirroring and striping as part of the RAID. Which RAID should the technician install?

    • RAID 10
    • RAID 3
    • RAID 4
    • RAID 2

    • Explanation & Hint: RAID 10 (also known as RAID 1+0) combines mirroring and striping in its setup. This RAID level provides the redundancy of RAID 1 (mirroring) with the performance benefits of RAID 0 (striping). It requires at least four drives to implement, as data is first mirrored between pairs of drives and then striped across those pairs. This setup is ideal for high-performance and critical systems where both speed and data integrity are paramount. RAID 10 offers excellent fault tolerance (as it can survive the failure of one drive in each mirrored pair) and improved performance over single RAID levels. RAID 3, RAID 4, and RAID 2 do not combine both mirroring and striping: RAID 3 uses byte-level striping with a dedicated parity drive, which is not commonly used today. RAID 4 uses block-level striping with a single dedicated parity drive, offering no mirroring. RAID 2, an obsolete standard, used bit-level striping with Hamming-code error correction and is not practical for modern applications.

41. A technician has been asked to configure several computers with RAID. The customer wants the best RAID possible with three drives used. Which RAID should the technician install?

    • RAID 6
    • RAID 3
    • RAID 4
    • RAID 2

    • Explanation & Hint: Given the constraint of using exactly three drives and aiming for “the best RAID possible” under these conditions, while recognizing that “best” can be subjective depending on whether the emphasis is on redundancy, performance, or a balance of both, let’s evaluate the options provided: RAID 6 requires a minimum of four drives to function because it uses dual parity to provide fault tolerance against the failure of two drives. Therefore, it cannot be configured with just three drives. RAID 3 uses byte-level striping with a dedicated parity drive. It’s not commonly used in modern applications due to its inefficiency with small read/write operations and the fact that it requires all drives to work in unison, which can lead to bottlenecks. RAID 4 uses block-level striping with a single dedicated parity drive. Like RAID 3, it’s less common in practice today, as it can also lead to bottlenecks because all parity data is written to a single drive. RAID 2 is an obsolete technology that uses bit-level striping with Hamming-code error correction. It’s not used in contemporary systems. Given the options and the requirement to use three drives, none of the specified RAID levels (RAID 6, RAID 3, RAID 4, RAID 2) are ideally suited or even possible with three drives under the premise of being “the best RAID possible” based on common objectives (since RAID 6 is not possible with just three drives, and the others are not typically used or recommended for general purposes today). However, if the goal is to maximize both redundancy and performance with three drives, the closest standard RAID configuration that could be recommended (though not listed in the options) would be RAID 5. RAID 5 provides block-level striping with distributed parity, allowing for good performance and fault tolerance with the capacity to withstand the failure of one drive. It’s a common choice for systems that require a balance between storage efficiency, performance, and redundancy with three or more drives.