Flashcards
CompTIA A+ - Extra Revision
Cards in this deck (49)
- 1Which RAID standard requires at least 4 drives?RAID 10
- 2LTOLinear Tape Open
- 3DLTDigital Linear Tap
- 4HDD – Rotational Speeds and Latency5400 – 5.55ms
7200 – 4.16ms
10,000 – 3ms
15,000 – 2ms - 5What is the storage capacity for a single-layer (SL) DVD-ROM?4.7GB
- 6What is the storage capacity for a dual-layer (DL) DVD-ROM?8.5GB
- 7What is the storage capacity for a dual-layer (DL) BLU-RAY DISC?50GB
- 8What is the storage capacity for a single-layer (DL) BLU-RAY DISC?25GB
- 9Where do we usually find a 2.5" SATA interface?Laptop.
- 10What is the throughput of an M.2 Interface device?4GB/second and faster
- 11What is the average rotational latency of a hard drive with a rotational speed of 15,000 rpms?2 ms
- 12What is the average rotational latency of a hard drive with a rotational speed of 10,000 rpms?3 ms
- 13What is the average rotational latency of a hard drive with a rotational speed of 7,200 rpms?4.16 ms
- 14What is the average rotational latency of a hard drive with a rotational speed of 5,400 rpms?5.55 ms
- 15EEPROMElectrically Erasable Programmable Read-Only Memory
- 16Which is cheaper HDD or SSD?HDD
- 17RPMRevolutions Per Minute
- 18SATA based SSD connection are how wide?2.5"
or 3.5" - 19Hardware based RAID means we use (3)1) Motherboard built-in support
2) RAID adapter card
3) Network-Attached Storage device - 20What is an example of Nested RAID?RAID 10 (RAID 1 + 0)
- 21A word for fault tolerance?Redundancy
- 22On a USB, NAND memory is dibided in blocks of________16KB to 512KB
- 23What is Bad Block ManagementUsed in USB
NAND memory
keeps track of Bad Blocks
inputs EDAC info - 24SDs come in 3 sizes?Standard (32x24mm)
mini (21.5x20mm)
micro (15x11mm) - 25Capacity of Standard SD4GB
- 26Capacity of High-Capacity SD32GB
- 27Capacity of extended Capacity SD2TB
- 28Capacity of Ultra-Capacity SD128 TB
- 29Typical storage capacity of Compact Flash32GB
- 30CF Form FactorsType I - 3.3mm thick
Type II - 5mm - 31On a CD, what does 48x represent?Read Speed.
The actual speed is
48 x 150KB = 7.2MB/s - 32Recording speed of CD-R48x (7.2MB/s)
52x (7.8MB/s - 33Recording speed of CD-RW24x (3.6MB/s)
32x (4.8MB/s) - 34How wide are CD-ROM drives?5.25"
- 35Size of etched pits in DVD compared to CD0.74 micrometers
vs
1.6 micrometers - 36Capacity of DVD-SL (DVD-5)4.7GB
- 37Capacity of DVD-18 2 sides / 4 layer17GB
- 38Standard Capacity of Blu-Ray (DL)50GB
- 39The capacity of Blu-Ray is how many times larger than DVD?10 times
- 40Capacity of a 4 layer BD-XL disc?128GB
- 41Drive speeds of Blu-ray1x to 16x
36 Mb/s (4.5MB/s) to 576 Mb/s (72MB/s) - 42How much data can a SATA Revision 3.0 drive transfer per second?6 Gb/s
After encoding amounts to 600 MB/s - 43How much data can a SATA Revision 3.2 drive transfer per second?16 Gb/s (1969 MB/s)
requires SATA Express or M.2 - 44Typical write Speed of Blu-ray Disc?50 MB/s
- 45How many PATA hard drives can you have on a system with two PATA hard drive controllers? a) 1 b) 2 c) 3 d) 4b) 2
PATA drives use master/slave jumpers to differentiate between the drives - 46PATA use ___ pin cables40-pin cables
- 47PATA cables are also known asIDE cables
- 48PATA use _____ connectors?Molex
- 49AHCIAdvanced Host Controller Interface
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- CompTIA A+ Flashcards on CompTIA A+ - Extra Revision, created by Amber Saxon on 06/02/2020.
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- Amber Saxon
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