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Comptia A+ Exam Storage Notes CompTIA A+ Exam Storage Notes Sky D. Semone September 2018 1 Questions All questions taken from 2016 reference guides and various helpful online sources. [2];[1] 1. Which of the following answers list(s) example(s) of storage media type(s) that can be read, but not written to? • CD-ROM • DVD-ROM 2. Which of the terms listed below refers to computer data storage systems, data storage devices, and data storage media that can be written to once, but read from multiple times? • WORM 3. Which of the following is an example of Write Once, Read Many (WORM) storage media type? • BD-R 4. What are the storage limitations of a standard CD-ROM media format? • Less than 800 MB of data storage capacity • Up to 80 minutes of uncompressed audio 5. Which of the following answers list(s) example(s) of storage media type(s) that can be erased and written to multiple times? • DVD-RW • BD-RE • CD-RW 6. Platters of a magnetic hard drive spin at a rate measured in: • Revolutions per minute 1 7. Which of the acronyms listed below refers to a dedicated storage appliance that can be added to a local network? • NAS 8. Which of the following answers list(s) example(s) of hot-swappable drives? • USB drive • FireWire drive • SATA drive • eSATA drive 9. A type of storage device with no moving parts that uses memory chips instead of magnetic platters is commonly referred to as a Solid-State Drive (SSD). • True 10. Flash memory card formats include: • xD-Picture Card • CompactFlash (CF) • Secure Digital (SD) 11. Which of the terms listed below refers to a proprietary flash memory card format used mainly in older digital cameras? • xD 12. A hybrid drive provides a combination of which of the following technolo- gies? • HDD • SSD 13. A type of media used as a secondary system storage in tablets and mobile phones is known as: • eMMC 14. A storage technology that combines multiple disk drive components into a single logical unit to increase logical volume size, improve performance, or reliability is called: • Redundant Array of Independent Disks (RAID) 15. Which of the following solutions does not offer fault tolerance? • RAID 0 2 16. RAID Level 0: • Decreases reliability (failure of any disk in the array destroys the entire array) • Is suitable for systems where performance has higher priority than fault tolerance • Is also known as disk striping 17. RAID Level 1: • Requires at least 2 drives to implement • Offers improved reliability by creating identical data sets on each drive (failure of one drive does not destroy the array as each drive contains identical copy of the data) • Is also referred to as disk mirroring 18. The term "Disk duplexing" refers to a more reliable RAID Level 1 con- figuration setup where each disk relies on its own hardware that controls the drive. • True 19. RAID Level 5: • Requires at least 3 drives to implement • Offers increased performance and fault tolerance (single drive failure does not destroy the array and lost data can be re-created by the remaining drives) 20. Which of the following RAID array types has the highest disk overhead? • RAID Level 1 21. RAID Level 10 requires a minimum of: • 4 drives 22. Which of the answers listed below refer to a nested (hybrid) RAID level? • RAID 1+0 • RAID 10 23. Which type of RAID level creates a striped set from a series of mirrored drives? • RAID 10 24. A single-sided, single-layer DVD disc can store up to: • 4.7 GB of data 3 25. A single-sided, double-layer DVD disc can store up to: • 8.5 GB of data 26. Which of the following statements describing the Blu-ray Disc (BD) tech- nology are true? • BD-RE discs can be erased and written to multiple times • A standard-size dual-layer Blu-ray disc can store up to 50 GB of data • BD-R discs can be written to once • A standard-size single-layer Blu-ray disc can store up to 25 GB of data 27. A single-layer mini Blu-ray disc can store up to: • 7.8 GB of data 28. What is the capacity of a dual-layer mini Blu-ray disc? • 15.6 GB 29. Which of the answers listed below describe the features of tape drives? • Magnetic media • Slow seek times • High capacity 30. Which of the following answers lists storage media types arranged from lowest to highest capacity? • Floppy disk, CD, DVD, BD (Blu-ray), Tape 31. What is the name of a cloud-based data storage service provided by Mi- crosoft? • OneDrive 32. Which of the answers listed below refer(s) to the common storage media types that can be used locally to boot/install an OS? • Recovery partition on internal HDD • USB drive • CD-ROM disc • DVD disc 4 33. The term "Recovery disc" refers to a removable media type commonly shipped with most new computers allowing a user to reformat the hard drive and restore the operating system to the original factory condition as configured by an Original Equipment Manufacturer (OEM). Most OEM recovery systems for Microsoft Windows involve booting from a separate CD-ROM or DVD, however in recent years bundled recovery CD-ROMs and DVDs have become less common as in case of newer systems more frequently the recovery data becomes available on a separate partition of a new computer's hard drive. • True 34. Which of the following answers lists an HDD form factor used in desktops? • 3.5-inch 35. On a SCSI bus, each device is assigned a number from 0 to 15 known as: • SCSI ID 36. Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) allows for monitoring system for anticipated: • HDD failures 37. Which of the following methods provides the most effective way for per- manent removal of data stored on a magnetic drive? • Degaussing 38. Which of the memory types listed below allows for permanent storage of data? • DVD-RAM 39. A 3.5-inch floppy disk can store up to: • 1.44 MB 40. What is the HDD form factor used in laptops? • 2.5-inch 5 References [1] Dulaney Emmett. Skandier Toby. Docter, Quentin. CompTIA A+ Complete Certification Kit: Exams 220-901 and 220-902. Sybex, 2016. [2] Mike Meyers. CompTIA A+ Certification All-in-One Exam Guide, Ninth Edition (Exams 220-901 220-902). McGraw-Hill Education, 2016. 6.
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