Unformatted text preview: 1 of 7 Exam Report: 5.4.7 Practice Questions Date: 9/11/2019 8:37:09 pm
Time Spent: 0:11 Candidate: Howie, Peter
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Question 1: Incorrect 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 10. 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
Which of the following would be your BEST solution?
Use mirrored volumes.
Use RAID 5 volumes.
Use striped volumes.
Use spanned volumes. Explanation
A Windows software RAID system can be configured in Windows 10 using the Windows Disk
Management tool. Of the available options from within Disk Management, you would need to
configure a mirrored volume to protect your data from a disk failure. Disk mirroring requires two
available drives with sufficient storage. Once configured, the data written to a mirrored volume
is duplicated to both drives. This duplication, or mirroring, means that if one of the mirrored
drives fails, all of the data can still be retrieved from the remaining good drive.
A spanned volume is a dynamic volume consisting of disk space on more than one physical disk.
This method does not duplicate the data. If a spanned volume drive fails, the data is lost.
A striped volume uses the free space on more than one physical hard disk to create a bigger
volume similar to a spanned volume. However, a striped volume writes across all volumes in the
stripe in small blocks, distributing the load across the disks in the volume. In other words, when
a single file is written, some of the file will be on one disk, and the rest of the file will be on
another disk. This makes writing files faster as the data to all of the disks in the strip at the
same time. It does not, however, protect the data in the event of a disk failure.
RAID 5 requires more than two disks.
Question 2: Incorrect You are running Windows 10 on your computer. You want to decrease the time it takes to write
data to your drives. To do this, you have decided to create a Windows software RAID system using
a striped volume. 9/11/2019, 8:38 PM 2 of 7 Before you create the striped volume, which action MUST you take?
Format your disks to use GPT partitions.
Format your disks to use MBR partitions.
Use a multi-partition volume on a basic disk.
Convert basic disks to dynamic disks. Explanation
When creating a Windows software RAID on Windows 10, all of the drive used for the RAID
system must be configured as dynamic disks.
The step of formatting your disks comes after the step of configuring your drives as either basic
or dynamic. Like basic disks, dynamic disks can use the MBR or GPT partition styles on systems
that support both.
With older versions of Windows, a basic disk included a multi-partition volume. To encourage
the use of dynamic disks, multi-partition volume support was removed from basic disks and is
now exclusively supported on dynamic disks.
Question 3: Incorrect 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 he has at least one backup of their data 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 10 Explanation
RAID 1 will protect memory from a single disk failure and provides high-read performance. It
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.
Question 4: Incorrect Ben is concerned about losing data due to a hard disk failure. His computer will only support a
maximum of three disks. To protect his data, you have decided to use RAID (redundant array of
Which of the following RAID types would give Ben the BEST mirrored data protection?
RAID 1 9/11/2019, 8:38 PM 3 of 7 RAID 5
RAID 10 Explanation
RAID 1 is the only mirrored solution that can work on three or less drives. RAID 0 and RAID 5
protects data using stripping. RAID 10 uses mirroring, but requires a minimum of four disks.
Question 5: Incorrect You have been asked to configure the drives in a computer. The end user wants to use striping
without incorporating any fault tolerance.
Which of the following will BEST meet these requirements?
Expanded volume set
RAID 0 Explanation
RAID 0 uses disk striping and offers no fault tolerance. Disk striping breaks data into units and
stores the units across a series of disks by reading and writing to all disks simultaneously. A
failure of one disk in the set means all data is lost. This is the fastest of all RAID types. RAID 5
also uses disk striping, but provides fault tolerance for a single disk failure. RAID 1 provides fault
tolerance, but does not use striping. An expanded volume set is a volume that spans more than
one hard drive. An expanded volume set also offers no fault tolerance, yet does not use striping.
Question 6: Incorrect You are building a new computer that will contain two hard disks. To provide increased
performance, you have decided to configure the drives using RAID technology.
Which of the following will BEST meet your needs?
RAID 1 Explanation
RAID 0 (striping) uses two or more disks and provides an increase in performance, but not fault
tolerance. RAID 1 (mirroring) uses two disks to provide fault tolerance, but not an increase in
performance. RAID 5 uses a minimum of three disks and provides both fault tolerance and an
increase in read performance.
Question 7: Incorrect 9/11/2019, 8:38 PM 4 of 7 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?
Data on the RAID 1 volume is accessible; data on the RAID 0 volume is not.
Data on both volumes is still accessible.
Data on both volumes is not accessible.
Data on the RAID 0 volume is accessible; data on the RAID 1 volume is not. Explanation
In this scenario, Disk 2 is shared between both volumes. If Disk 2 fails, the RAID 1 volume is
still accessible because RAID 1 (mirrored) volumes 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.
Question 8: Incorrect A computer 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
RAID 10 Explanation
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.
Question 9: Incorrect What is an advantage of RAID 5 over RAID 1?
RAID 5 provides redundancy; RAID 1 does not.
RAID 5 improves performance over RAID 1.
RAID 5 continues to operate with a failure in two disks; RAID 1 can only operate with a
failure of one disk. 9/11/2019, 8:38 PM 5 of 7 RAID 5 provides redundancy for the disk controller. Explanation
RAID 5 provides both fault tolerance and improved performance. RAID 1 (mirroring) provides
only fault tolerance with no performance benefit. Both RAID 5 and RAID 1 can only sustain a
loss of one disk in the set. Use multiple disk controllers to provide redundancy for the disk
Question 10: Incorrect You have been asked to implement a RAID 5 solution for an engineer's desktop workstation. What
is the minimum number of hard disks that can be used to configure RAID 5?
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.
Question 11: Incorrect One of the video editors in your company is worried that he may lose a lot of data if his hard drive
fails. He has asked you to come up with a solution. To do this, you have decided to implement a
RAID 10 solution on his desktop workstation.
Which of the following is the MINIMUM number of hard disks that can be used?
A RAID 10 array nests a mirrored array within a striped array. To create a RAID 10 array, a
minimum of four hard disks is required (two for the mirrored array and two more to stripe the
Question 12: Incorrect Which of the following drive configurations uses striping with parity for fault tolerance? 9/11/2019, 8:38 PM 6 of 7 RAID 0
RAID 10 Explanation
RAID 5 also 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 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.
Question 13: Incorrect You are configuring a new system, and you want to use a RAID 0 array for the operating system
using SATA disks and the RAID functionality built into the motherboard.
Which of the following BEST describes the action you will take as part of the configuration?
In the BIOS, set the disk mode to IDE.
Set the disk mode to AHCI in the BIOS.
Set master/slave jumpers on the hard drives.
Load the RAID drivers during operating system installation. Explanation
If you are using an onboard RAID controller with SATA drives, edit the CMOS settings and
identify the drive type as RAID. This tells the system to load the onboard BIOS for accessing the
connected drives. If you want to install the operating system on a RAID array, you need to
manually load the controller driver so that Windows can see the RAID array.
Question 14: Incorrect You have an existing computer running Windows 10. You want to configure a RAID 1 array in the
computer. You install two new SATA drives, then use the RAID controller integrated in the
motherboard to define a RAID 1 array using them. When you boot the computer, Windows does
not show the logical RAID drive. What should you do?
Install the drivers for the RAID controller.
In the BIOS, change the SATA disk mode to AHCI.
In the BIOS, change the SATA disk mode to RAID.
Set the jumpers on the drives to use SATA I mode. Explanation
You must install the RAID driver so that Windows recognizes arrays created by the motherboard
RAID utility. Without the driver, Windows will not be able to see the logical drive defined by the
array. When you define the array, you configure the BIOS to use RAID as the SATA type. If you
had not completed this step, you would not be able to run the RAID configuration utility. Use
AHCI to configure SATA drives to support hot swapping. 9/11/2019, 8:38 PM 7 of 7 [e_raid_pp6.exam.xml Q_RAID_CFG_RAID_1_01] 9/11/2019, 8:38 PM ...
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