CPT 267 Test 2 Review

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A body of material that supports the head is know as a _______________________

A.) When the drive is powered off B.) When the drive is powered on (during normal operation)

A) When does a contact start stop head touch the surface of a platter in a HDD? B) When does a contact start stop head not touch the surface of a platter in a HDD?

SCSI

Alan Shugart helped create the SASI interface which was later renamed to the _____________ interface

server

Currently, tape drives and media are only used in high-end _______________ backups

FAT16

Flash memory cards up to 2GB use which file system

9.4

GPT permits drives to be partitioned,above the limit of MBR; The theoretical limit of GPT formatting is __________________ Billion Terabytes

faster

If a system requires a memory module with a specific speed, a memory module with a ________________ speed can almost always be substituted for it

slowest

If modules with various speed ratings are installed on a motherboard, the memory bus run at the speed of the _____________ module

Module

If software based memory diagnostics are not identifying memory failures, a memory test machine usually known as a _______________ tester can be utilized to test modules thoroughly at differing voltages, speeds and timings

A.) The platter looks like a mirror B.) The platter looks brownish-orange

If the platters of a HDD that are the thin-film If the platters of a HDD that are oxide-coated

previous versions

In general current versions of the ATA standard are compatible with ____________

Performance Monitor

In order to find out if your computer system needs more memory, what Windows utility does the author suggest using?

All of the above

Name 3 applications of the 2.5" form factor

Sony Memory Stick SecureDigital

Name all the flash memory devices that include both encryption and a mechanical write (erase) protection switch

More rigid (can be made thinner), thermally stable

Name the advantages of using glass-ceramic material for the platter of a HDD rather than metal.

Inexpensive, can be densely packed, slow

Name three characteristics of DRAM (two good and one not so good).

Fast, expensive, memory cells cannot be densely packed in chips

Name three characteristics of SRAM (one good and two not so good).

RLL

Of the encoding techniques presented in the text, the _________ encoding technique provides the highest recording density.

0

On an unmagnetized medium there are many magnetic particles (fields) each with its own direction of polarity. What is the overall resulting magnetism?

boot

One ideal use for an SSD in a desktop computer is to use it as a __________________ drive because of its high performance.

cloud

Remote storage that is accessed by the internet is known as _________________ based storage

exFAT

SDXC cards have capacities above 32GB and use which file system?

False

TRUE or FALSE: A 320 GB HDD actually has the same storage capacity as a 320 GiB HDD.

True

TRUE or FALSE: A Femto slider has 3 distinct areas with complex shapes designed to float at a constant height above the surface of the disk at any location on the disk and to minimize height loss under high-altitude conditions (environment)

True

TRUE or FALSE: A HDD manufactured to ATA-6 standards will also work on an ATA-7 standard interface.

True

TRUE or FALSE: A larger capacity memory module can be installed on a specific motherboard if the motherboard is designed to accept the larger capacity memory module

True

TRUE or FALSE: According to the author, it may be best to buy memory modules from first-party or second-party supplier.

True

TRUE or FALSE: An unrecoverable error is an error that cannot be corrected even after ECC has been applied.

False

TRUE or FALSE: Computers today typically come with a floppy drive

False

TRUE or FALSE: Current best practice is to run a head parking program before shutting the power off on a computer to avoid damaging either the heads or the platters.

False

TRUE or FALSE: Disk drive storage for computers was actually developed and introduced prior to tape drive storage for computers.

False

TRUE or FALSE: If a memory module has chips mounted on both its sides, then it must have two banks (ranks) of memory installed on it.

True

TRUE or FALSE: In general, the largest drive that BIOS would support in a computer before 1994 was 528 MB.

True

TRUE or FALSE: It is almost impossible to access a HDD that utliizes ATA-3 security if the password is lost.

False

TRUE or FALSE: It is not necessary to allow a HDD that is brought in from the cold to adjust to room temperature before trying to use it?

False

TRUE or FALSE: MTBF is an accurate measure of how long you can expect the HDD in your computer to operate before it needs to be repaired or replaced.

True

TRUE or FALSE: Magneto-resistive head assemblies actually contain two heads because a magneto-resistive head cannot write to a medium.

True

TRUE or FALSE: One Terabyte (T) is smaller than one Tebibyte (Ti)

True

TRUE or FALSE: PMR technology was first introduced commercially in floppy disks.

True

TRUE or FALSE: ROM is technically a type of RAM.

True

TRUE or FALSE: SATA drives do not need to be configured as a master, slave, or cable select.

True

TRUE or FALSE: SLC stores 1 bit in a single cell, MLC stores 2 and TLC stores 3 bits in a single cell

False

TRUE or FALSE: SSDs should be defragmented periodically to improve their performance and lengthen their life.

True

TRUE or FALSE: SSDs use NAND flash technology

True

TRUE or FALSE: Servo in voice-coil actuators Indicate the position of the heads in relation to cylinders and positions the heads accurately over the cylinders

False

TRUE or FALSE: Stepper motor mechanisms can move in increments of less than a single track and correct for temperature-induced errors

False

TRUE or FALSE: Tapes used in tape drives are expensive.

False

TRUE or FALSE: The key notch for a DDR2 DIMM and DDR3 DIMM are located in the same position

True

TRUE or FALSE: The type of flash memory used for a motherboard is not the same type that is used for a jump drive or digital camera.

True

TRUE or FALSE: Third-party disk-partitioning tool such as Parted Magic can resize partitions without destroying data

True

TRUE or FALSE: When you install 4 Gigs of memory on a computer running a Windows 32-bit OS most of the 4th Gig will be disabled because it is already occupied by other system hardware

True

TRUE or FALSE: You should disable the processor/memory caches before running memory test programs.

clock signal

That timing signal is called a __________.

5 1/4 inch

The _________________________ drives replaced the 8 inch floppy drives

bit cell transition cell

The area on a tape or disk in which the head creates a flux reversal is called a ________ ________ or a __________ _____________(choose two answers)

utilities

The existing computer system BIOS, operating systems, and _________________ work with either SATA or PATA.

1967

The floppy drive was invented in _________

2.2 TB

The maximum amount of drive that can be recognized under the MBR(Master Boot Record) partitioning is _________________

LTO Ultrium-6 (native/compressed capacity of 2.5/6.25 TB) LTO Ultrium-3 (400 / 800 GB ) SDLT LTO Ultrium-4 (800GB / 1.6 TB) LTO Ultrium-5 (1.5 / 3.0 TB)

The most common types of tapes used in backups today include (pick all that apply)

cylinder

The name for all of the identically aligned tracks on both sides of all platters in a HDD is called a __________.

seek

The time required for the heads to move from one cylinder to another cylinder a random distance away is called the Average __________ time

FAT32

USB flash memory drives typically use which file system?

Rotary actuator

Voice coil actuator that is characterized by being lightweight but creating azimuth error as it moves the heads across the surface of the platter?

4

What action did the HDD industry take to increase storage efficiency and improve read error rates in HDDs? Increased HDD sector size to ______ kB

All of the above

What are the step(s) that are required to prepare a HDD for use.

Master(single) CS(cable select) SP(slave present)

What are the three of the four possible ways in which a parallel ATA drive can be configured?

Compaq

What company designed and installed the first 40 pin ATA (IDE) connectors on its motherboards?

CPU

What computer component is used for PIO transfers, but not for DMA transfers?

It has no moving parts and no vacuum tubes

What does the author say is the basic definition for a SSD?

U-shaped

What is the basic shape of a read/write head?

To have a single driver-level interface supported by all advanced SATA host drivers. To eliminate the need for custom drivers for each manufacturer's SATA host adapter

What is the main 2 ideas behind AHCI?

four

What is the minimum number of HDDs required to implement the striped mirrors of RAID ?

PRML

What is the name of the circuitry that can be used in the read circuit to increase by 40% the amount of data stored on a disk

Endec

What is the name of the device that generates waveforms to optimize placement of flux patterns on the disk during writing and converts the waveforms back into binary data during reading?

Host protected area

What is the name of the feature of ATA-4 that can set the apparent end of the drive before the actual end of the drive in order to make a secure area for storing disk recovery information- do not use acronymn

Perpendicular magnetic recording

What is the name of the recording technique that aligns magnetic bits vertically rather than horizontally on the surface of a drive?

Platter rotational speed track linear density

What two factors determine media transfer rate of a HDD?

Registered modules

What type of memory module uses additional chips to temporarily hold data passing to and from the module so that more memory chips can be placed on modules and more modules can be installed in servers and workstations?

Pulse

What type of waveforms does a head output when it is reading a tape or disk?

+3.3 VDC +12 VDC + 5 VDC

What voltages are provided by a SATA power connector?

Outer tracks of the platter, Outer tracks of the platter

When ZBR is used, which of the tracks have the largest number of sectors? Which of the tracks permit highest data transfer rates?

10

When a minimum of four drives are first combined into pairs as RAID 1 sets and then the pairs are striped as a RAID 0 configuration, what is the name of the RAID? RAID Level ___

Memory

When is a___________ bus considered to be running at optimum speed when its speed equals the speed of the processor bus

flux

When the flow of current through its coil is reversed it is called a _______________ reversal.

Inside the drive

Where is the drive controller located in an ATA disk drive system?

ATA-4

Which ATA standard first enabled ATA devices to be adapted to Firewire ports?

SD

Which does the author say is the most popular format for flash memory

Memory module speed

Which of the following is not a factor that limits the maximum physical size of memory in a computer?

Logical address composed of one number

Which of the following lists characterizes the way LBA addressing works in a HDD?

All of the above

Which of the following types of flash memory devices does the author recommend?

Increasing the rotational speed of the disk

Which of the items in the list below is Not a desirable result of making magnetic heads for HDDs smaller

L3 cache

Which of the three levels of cache can be shared among the processors in a multicore processor and is well-suited for processors with 4 or more cores?

L1 cache

Which of the three levels of cache is the fastest?

Embedded servo

Which of the three types of servos that can be used in HDDs is most often used today?

average access time = average seek time + latency

Write an equation that relates average access time, latency, and average seek time.

Latency

__________ is the average time for a sector to be available after the heads reach a track

Volatile memory

__________ means that RAM loses any information it has stored when power is removed from the RAM

Areal density

____________ __________ = the number of bits/inch stored on a track multiplied by the number of tracks/inch

Logical

______________ mapping and layout refer to how the memory addresses are associated with actual memory ICs and what address locations contain which types of system information.

trim

_______________ is the ATA command that improves SSD performance by causing the drive to be informed immediately when any blocks of data are deleted? The drive can erase the data from the blocks making them ready to be written to quickly in the future.