Mod 05 Quiz Supporting Hard Drives and Other Storage Devices
Explain the difference between RAID 0, RAID 1, and RAID 5. Select two.
- All three flavors of RAID could be implemented using hardware or software RAID. - RAID 0 stripes data across disks, RAID 1 mirrors data, and RAID 5 uses parity.
Your friend has compiled a moderate collection of movies they have bought over the years. They all reside on a media server they assembled with remote access capabilities. They would like to have a physical copy of each movie on optical media for off-site storage. Most of the movies consume between 60 and 120 GB of storage. What type of optical storage media should they use to back up the movies? Select two.
- BD-R TL - BD-R QL
Which statements are true, relative to RAID 0, and/or why would you implement it? Select two.
- Improves overall disk performance - RAID 0 requires at least two drives
Johan is a hard drive performance engineer working at a major storage device manufacturer. He needs to measure, record, and analyze the throughput, IOPS, and the latency of the different models of drives the company produces. What is the difference between these three parameters? Select three.
- Latency measures the time required to process a data request or a transaction. - IOPS measures the number of read or write operations performed in one second. - Throughput is the amount of data flow through a point in the data path in one second.
During routine maintenance on your server, you discover that one of the hard drives on your RAID array is starting to go bad. After you replace the drive and rebuild the data, you run diagnostics on the RAID controller card with no problems, so you believe you fixed the problem. The next morning you arrive at work and discover that the RAID has completely failed. None of the disks are working. Your server is still running because you installed the OS on a non-RAID disk, but all the data is missing, and the server shows that none of your RAID disks are found. What might be the problem with your server? (Select all that apply.)
- Motherboard - RAID controller
Devon would like to install a new hard drive on his computer. Because he does not have a SATA port available on his motherboard, he has decided to purchase a NVME SSD hard drive. How can Devon attach a NVME device to his computer? (Select all that apply.)
- PCIe expansion card - U.2 port on the motherboard - M.2 slot on the motherboard
Terry came into work and turned on his computer. During the boot process, the computer shut down. When he tried again, the computer showed the error message, OS not found. Terry called the help desk and explained the computer issue. The help desk technician goes to Terry's office and verifies the problem. What are some things the help desk technician could check or try? Select three.
- SATA cable connection - Device boot order - Use Window Startup Repair
Juridia buys new a 16 GB flash drive, she takes it out of the package, and tries to copy an 8 GB file to it. However, the operation fails with an error message indicating the file is too large. Which of the following statements are most likely to be true? Select two.
- The flash drive needs to be reformatted with the NTFS or exFAT file system. - The flash drive has the FAT32 file system, which supports files up to 4 GB in size.
Sharon believes the computer she is troubleshooting is having problems with the hard drive. She wants to test her theory and finds an older, known, good, SATA drive in the spare parts bin but notices the gold conductors in the SATA power connector are very distressed. Sharon also realizes that the spare drive also has a 4-pin power connector. What type of power connector will Sharon need to supply power to the hard drive?
4-pin Molex connector
Jessica wants to purchase a new hard drive. She wants a drive that has fast access because she will use it to edit videos on her PC. She also needs a lot of storage and wants to have at least 4 TB available to save her videos. Jessica wants to keep the cost down as much as possible. What type of hard drive should Jessica purchase?
7200 RPM magnetic HDD
Your computer has recently started to generate a few S.M.A.R.T messages. What is the most favorable thing you could do?
Backup your data immediately
You have a computer that is running low on storage, so you decide to install a second hard drive to store your files. You would like to partition the drive you just installed and end up with two volumes. In addition, you want to keep the original hard drive intact, which is where the Windows operating system resides. What process would allow you to meet your objective?
Boot Windows and use Disk Management to prepare the new drive.
Delonte has been using his computer at work every day for two years with no problems. The nature of his work requires him to frequently create and delete test files of different types and sizes. However, he is starting to notice that his computer is slowing down. What Windows tool can be used to verify Windows is relocating data to help with performance?
Defrag and Optimization tool
You recently installed a new RAID controller card in a PCIe expansion slot on your computer. After setting up the controller, you transfer data from the backup you created over to the computer. When you finish the setup, you turn the computer off and return it to its normal location. When you turn the computer on, you immediately receive the error message, "RAID not found." What might be the problem?
Expansion card failed or became unseated.
You and a friend decide to watch a movie on your computer. The movie is saved on a second hard drive on your system. When you are ready to watch the movie, you can't find it on your computer. You try to locate the second hard drive, and it is no longer listed in Windows. What might be the problem with the movie and the hard drive?
Hard drive has crashed.
Dumas, who has excellent mechanical aptitude, owns a computer with two hard drives. One drive is used for the operating system and the other drive is used for his personal files. He decides to install a third disk in a RAID 1 configuration to protect the disk with his files against data loss. He is not too concerned about data loss on the disk with the operating system because he could easily reinstall the OS, so that disk is not included in the RAID configuration. When he is done, he powers up his computer, no error messages are displayed, yet he is distraught because all his data is lost. Why would this happen?
He didn't back up his data. When RAID is configured all data on participating drives is lost.
Leroy buys three identical 2 TB SSDs to implement a fault tolerant RAID configuration. He configures RAID 1 using the three disks, and later discover that the total storage is only 2 TB. What alternative, if any, does Leroy have?
Implement RAID 5
Your computer has three drives in a RAID 5 configuration. One of the drives fails so you replace it right away. Immediately upon replacing the drive you notice that the overall performance seems to have been degraded. You research the issue and conclude that this is the expected behavior. How can you rationalize this behavior?
It takes time to rebuild the data on the new drive. During this time performance is degraded.
You buy a new hard disk drive and install the Linux operating system. You later decide you prefer the Windows operating system so you install it instead. Before you installed either one of the two operating systems, the hard drive had sector markings that allowed you to install the operating system of your choice. What facilitated this capability?
Low-level formatting
This morning when Paul turned on his computer at work, it would not boot. Instead, Paul reported that he heard a loud clicking noise coming from inside his computer. What might be the problem with Paul's computer?
Magnetic hard drive failed.
While working on your computer, you receive the POST error, "Drive Not Recognized." You check your SATA cable to see if it is the problem, and it tests fine. You remove the hard drive and test it in a computer system known to be in good working condition and find that the hard drive is working. You can move data and check to make sure the OS files are not corrupt. You use a power supply tester to see if the voltage for the SATA power connection is correct, and the test shows the power is correct. You even check BIOS to make sure the hard drive can be recognized and find that all settings in BIOS are at default, so the system should recognize the hard drive. What might be the problem with your hard drive system?
Motherboard SATA port has gone bad.
You are installing a new hard drive in a system in which the hard drive will run at 6.0 Gbps. What can you use to determine whether the SATA port number into which you are connecting the drive will also run at 6.0 Gbps?
Motherboard manual
Lucas works at a small production company that receives contracts to perform high-end video editing and rendering. He needs to buy systems with the ability to write 30 Gb/sec to a storage medium. What standard should the systems support?
NVM Express
Andre lost important data and wants to ensure it doesn't happen again. However, he has a limited budget and doesn't want to spend too much money implementing an expensive fault-tolerant solution. What type of RAID configuration would you recommend?
RAID 1
Keion works as a freelancer creating websites and designing logos for clients. He recently had a hard drive failure and lost work for a client, and he would like to prevent the same type of problem from happening again. Keion does not want to rely on a backup but would like a way to ensure that his data is safe on his computer. You recommend that he create a RAID array that will provide fault tolerance and not suffer data loss if one drive fails. What RAID configuration should you recommend to Keion?
RAID 1
You work for a supplier that provides technology products to a variety of industries. One of your partners calls you and indicates they need to buy 10 computers that will run an application that requires writing to the hard drive at 3.5 Gb/sec. What standard should the SATA connector on the motherboard support?
SATA Revision 3.x
Cirrus was hired to start a multimedia group at a major corporation. He has been asked to buy high-end equipment to ensure it will not be obsolete in three or four years. He buys a video camera capable of recording 8 MB/sec. What type of SD memory card should he use in the camera?
V10
Dr. Everest, a professor at a university, is using custom software to visually demonstrate to his class the different techniques SSDs implement to help improve performance and reliability. Specifically, how the logical block addressing on a solid-state drive does not always address the same physical blocks, to distribute write operations more evenly. What should Dr. Everest call this specific portion of his presentation?
Wear leveling
You have a desktop system with a 2.5 inch 500 GB SDD and a laptop with a 200 GB SDD. You want to replace the 500 GB SSD on the desktop with a larger SSD and use the 500 GB SSD in the laptop. All data has been backed up. What factors do you need to consider?
You can simply proceed to install the SDD from the desktop laptop directly in the laptop.
Godiva's computer is having issues booting up. She troubleshoots and her best guess is that the BCD is corrupt. In her endeavor to plan a solution and implement it, what command should she include?
bootrec
