A+ 901 Test 5 Flashcards
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
Platters of a magnetic hard drive spin at a rate measured in:
Revolutions per minute
The capability for replacing computer system components without causing interruption to the system operation is known as:
Hot swapping
Which of the following answers list(s) example(s) of hot-swappable drives?
USB drive
FireWire drive
SATA drive
eSATA drive
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
Flash memory card formats include:
xD-Picture Card
CompactFlash (CF)
Secure Digital (SD)
Which of the terms listed below refers to a proprietary flash memory card format used mainly in older digital cameras?
xD
A hybrid drive provides a combination of which of the following technologies?
HDD
SSD
A type of media used as a secondary system storage in tablets and mobile phones is known as:
eMMC
A storage technology that combines multiple disk drive components into a single logical unit to increase logical volume size, improve performance, or reliability is known as:
Redundant Array of Independent Disks (RAID)
Which of the following solutions does not offer fault tolerance?
RAID 0
RAID Level 0:
Is also known as disk striping
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
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
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)
Which RAID type has the highest disk overhead?
RAID Level 1
RAID Level 10 requires a minimum of:
4 drives
Which of the answers listed below refer to a nested (hybrid) RAID level?
RAID 1+0
RAID 10
Which type of RAID level creates a striped set from a series of mirrored drives?
RAID 10
A single-sided, single-layer DVD disc can store up to:
4.7 GB of data
A single-sided, double-layer DVD disc can store up to:
8.5 GB of data
Which of the following statements describing the Blu-ray Disc (BD) technology 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
A single-layer mini Blu-ray disc can store up to:
7.8 GB of data
What is the capacity of a dual-layer mini Blu-ray disc?
15.6 GB
Which of the answers listed below describe the features of tape drives?
Magnetic media
Slow seek times
High capacity
