WorksheetsCOA_Ch07_Pretest
Total questions: 19
Worksheet time: 10mins
Name
Class
Date
1.
The signals exchanged between a sender and a receiver is called a ______________
a)
protocol
b)
prototype
c)
message
d)
rule
2.
The large computer systems use an intelligent type of DMA interface known as ______________
a)
I/O channel
b)
memory-mapped I/O
c)
interrupt-driven I/O
d)
memory I/O
3.
______________are divisions of concentric circles called tracks in disk drives.
a)
Sectors
b)
Segments
c)
Paths
d)
Symmetry
4.
If a read/write head in Rigid Disk Drives were to touch the surface of the disk, the disk would become unusable. This condition is known as a ___________________
a)
head crash
b)
head corrupt
c)
head clean
d)
head burn
5.
Lineal spaces between the pits in a CD-ROM are called ____________
a)
tracks
b)
segments
c)
lands
d)
circles
6.
Electrical signal loss over time or distance during data transfer is called an _______________.
a)
attention
b)
attribute
c)
attenuation
d)
attendention
7.
DVDs rotate at about ______________ times the speed of CDs.
a)
two
b)
Three
c)
four
d)
five
8.
Systems that require high availability and must be able to tolerate more than one concurrent drive failure use________________.
a)
RAID 1
b)
RAID 2
c)
RAID 3
d)
RAID 6
9.
______________ devices offer another approach to transcend the limits of magnetic storage.
a)
Micro-electronic-mechanical
b)
Micro-electro-magnetic
c)
Micro-electro-mechanical
d)
Macro-electro-mechanical
10.
MTTR means
a)
Mean Time To Repeat
b)
Mean Time To Repair
c)
Mean Time To Report
d)
Median Time To Repair
11.
Disk and tape are forms of _______________ storage.
a)
durable
b)
sequential
c)
random
d)
direct
12.
In RAID-2, the error-correction information generated in additional drive is using ____________.
a)
Hamming code
b)
Humming code
c)
spanning code
d)
hamming table
13.
Channel I/O is a type of non-isolated I/O because the systems are equipped with separate I/O buses.
a)
True
b)
False
14.
A standard monitor is the only output device that presents results to the user.
a)
True
b)
False
15.
Two types of transmission modes are serial and parallel transmission modes.
a)
True
b)
False
16.
The storage systems that are not protected by RAID are known as just a bunch of disks (JBOD).
a)
True
b)
False
17.
The I/O modules take care of data movement between main memory and a particular device interface.
a)
True
b)
False
18.
Solid-state drives consist of a microcontroller and flash memory.
a)
True
b)
False
19.
Like RAID-6, RAID DP can tolerate the simultaneous loss of two disk drives without loss of data.
a)
True
b)
False
100 %
