3.8.12 Practice Questions

You have been asked to implement a RAID 5 solution for an engineer's desktop workstation. What is the minimum number of hard disks you can use to configure RAID 5? Two Three Four Five Six

A RAID 5 array stripes data and parity information across multiple hard disks. To complete a RAID 5 array, a minimum of three hard disks is required. RAID 0 and RAID 1 can both be implemented with a minimum of two hard disks.

You want to create a software RAID 1 array on your Windows 11 workstation using Disk 1 and Disk 2. What do you need to do with Disk 1 and Disk 2 before configuring them for a RAID 1 array? Verify that both disks are the same size. Format both disks with the same file system. Convert the disks from dynamic to basic. Convert the disks from basic to dynamic.

Convert the disks from basic to dynamic. You can only use dynamic disks to create a software RAID array in Windows. Therefore, you need to convert Disk 1 and Disk 2 (using the Disk Management tool) from basic disks to dynamic disks.

You have a computer with three hard disks. A RAID 0 volume uses space on Disk 1 and Disk 2. A RAID 1 volume uses space on Disk 2 and Disk 3. Disk 2 fails. Which of the following is true? answer Data on both volumes is still accessible. Data on the RAID 0 volume is accessible. Data on the RAID 1 volume is not. Data on the RAID 1 volume is accessible. Data on the RAID 0 volume is not. Data on both volumes is inaccessible.

Data on the RAID 1 volume is accessible. Data on the RAID 0 volume is not. In this scenario, Disk 2 is shared between both volumes. If Disk 2 fails, the RAID 1 volume is still accessible because RAID 1, which uses mirroring, can sustain a loss of a single disk. The data on the RAID 0 volume is not accessible. RAID 0 uses striping, which distributes the data evenly between multiple disks. If a single disk fails, the entire volume is lost.

You are configuring a new system, and you want to use a RAID 0 array for the operating system using SATA disks and a special controller card that includes a RAID processor. Which RAID method should you use? Software Operating system JBOD Hardware

Hardware Hardware RAID uses a special controller card that includes a RAID processor. While it is the most expensive RAID method, it provides much better performance and is more reliable than other methods.

You have configured Disk 3 and Disk 4 on your Windows 11 workstation as a RAID 1 array with the NTFS file system, and you have assigned F as the drive letter for the array. Each disk has an individual storage capacity of 1 TB. However, when you check the available storage size of F, you notice that it only lists 1 TB (instead of 2 TB) of available disk storage space. What should you do to resolve the issue? Make sure both disks are set to dynamic instead of basic. You need to change to a RAID 5 array. Change the volume to a spanned volume. Nothing. The RAID array is working as designed.

Nothing. The RAID array is working as designed. You do not need to do anything. A RAID 1 array provides mirroring, which means that the same data is available on both disks. This means that the total size of the volume is equal to just the size of one of the disks in the array. In this case, the total volume size is still 1 TB, even though each disk is capable of storing 1 TB.

Jessica is concerned about losing data due to a hard disk failure. Her computer will only support a maximum of three disks. To protect her data, she has decided to use RAID (Redundant Array of Independent Disks). Which of the following RAID types would give Jessica the BEST mirrored data protection? RAID 0 RAID 1 RAID 5 RAID 10

RAID 0 RAID 1 RAID 5 RAID 10 RAID 1 is the only mirrored solution that can work on three or less drives. RAID 0 and RAID 5 protect data using striping. RAID 10 uses mirroring, but this requires a minimum of four disks.

One of your customers wants you to build a personal server that he can use in his home. One of his concerns is making sure that he has at least one data backup stored on the server in the event that a disk fails. You have decided to back up his data using RAID. Since this server is for personal use only, the customer wants to keep costs down. Therefore, he would like to keep the number of drives to a minimum. Which of the following RAID systems would BEST meet the customer's specifications? RAID 0 RAID 1 RAID 5 RAID 10

RAID 0 RAID 1 RAID 5 RAID 10 RAID 1 protects memory from a single disk failure and provides high-read performance. RAID 1 also only requires a minimum of two disks. RAID 5 would also protect data from a single disk failure but requires a minimum of three disks, and RAID 10 requires a minimum of four disks.

A computer that is being used by the HR department needs to ensure that all of the data on that computer is protected from a single hard disk failure. The data needs to be read as quickly as possible, and the HR department would like to maximize drive use as much as possible. This computer can use up to three hard drives. Which of the following RAID types would meet these requirements and provide the BEST data protection? RAID 0 RAID 1 RAID 5 RAID 10

RAID 5 A RAID 5 volume combines disk striping across multiple disks with parity for data redundancy. Parity information is stored on each disk. If a single disk fails, its data can be recovered using the parity information stored on the remaining disks. RAID 5 also provides an increase in performance for read operations. With three drives, RAID 5 uses approximately 33% overhead, whereas RAID 1 and 10 use 50%. RAID 0 does not provide fault tolerance. If one disk in the set fails, all data is lost. RAID 10 requires a minimum of four disks. This computer only has three.

Which of the following drive configurations uses striping with parity for fault tolerance? answer RAID 0 RAID 1 RAID 10 RAID 5

RAID 5 Explanation RAID 5 uses disk striping, but provides fault tolerance for a single disk failure. Disk striping breaks data into units and stores the units across a series of disks by reading and writing to all disks simultaneously. RAID 0 uses disk striping and offers no fault tolerance. A failure of one disk in the set means that all data is lost. RAID 1 provides fault tolerance, but does not use striping. A RAID 10 array nests a mirrored array within a striped array.

You work for a small company as the human resources specialist. Since the company is fairly small, you are maintaining all of the employee information on your desktop computer, which is running Windows 11. This computer has two high-capacity hard disks. You want to ensure that this information is protected from a hard disk failure, so you want to set up a Windows software RAID system. Which of the following would be your BEST solution? answer Use mirrored volumes. Use striped volumes. Use RAID 5 volumes. Use spanned volumes.

Use mirrored volumes.

You want to create a software RAID 1 array on your Windows 11 workstation using Disk 1 and Disk 2. What do you need to do with Disk 1 and Disk 2 before configuring them for a RAID 1 array? Verify that both disks are the same size. Format both disks with the same file system. Convert the disks from dynamic to basic. Convert the disks from basic to dynamic.

Verify that both disks are the same size. Format both disks with the same file system. Convert the disks from dynamic to basic. Convert the disks from basic to dynamic.