FreePractice - Part 3 (ver 1.2.00)

Click on the MOST correct answer


1 RS-232 is a standard that applies to:
serial ports
parallel ports
game ports
networks
digital frequencies
2 CD-ROMs typically hold ______ of data.
100 meg
500 meg
650 meg
1000 meg
350 meg
3 The terms "red book", "yellow book", and "orange book" refer to: Choose one:
scsi
ide
floppy drive technology
CD-ROM standards
none of the above
4 CD-ROMs are read by _________.
magnetic heads
electronic sensors
stepper motors
laser diodes
titanium servos
5 Comm ports use:
50 pin male connector
14 pin female connector
25 pin male connector
edge connector
parallel connector
6 Before a modem transmits, it send a:
RTS
DTR
DSR
RQS
TRX
7 RTS stands for:
ready to start
ready to switch
request to send
request to scan
ready to set
8 In modem terminology, CD stands for:
collect data
call data
cease deliver
carrier detect
comm detect
9 UART is a type of serial chip. Its letters stand for:
unidirectional access regarding transmission
universal asynchronous receiver/transmitter
upper advanced real transfer
use all rom types
10 Select the true statement: Choose one:
com1 and com3 share the same IRQ
com1 and com 4 share the same IRQ
com2 and com3 share the same IRQ
com1 and com2 share the same IRQ
None of the above
11 In modems that support more than 300 baud, baud and bps do not mean the same thing.
true
false
12 "bps" stands for bits per second. Baud is the number of discrete signals per second. One discrete signal can encode more than one bit. Hence, a 9600 bps modem actually operates at 2400 baud. However, in common non-techie terminology, baud and bps are used synonymously, though that is not technically correct. These are all true statements.
true
false
13 ________ is the term used to refer to the process of two modems establishing communications with each other.
interacting
handshaking
connecting
linking
pinging
14 ISDN stands for:
internal select data nulls
integrated services digital network
interval set down next
interior sector direct none
inferior sector data net
15 Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem?
defective modem
defective computer
software bug
bad phone line
virus
16 You have a serial scanner connected to your computer configured to use com3. It is turned on. Your modem is using com1, and you can't dial out. What is the most likely problem?
everything should work ok
you have an i/o conflict
you have a conflict with IRQ 4
you have a loose connection
you have a conflict with IRQ 3
17 What is the i/o address for com1?
3e8
3bc
5f8
3f8
008
18 What is the i/o address for com2?
2vb
2f8
8f8
330
e8e
19 What is the i/o address for com3?
3e8
345
ff8
5e8
be8
20 What is the i/o address for com4?
4e7
e8e
be0
cb8
2e8
21 Before sending data, a modem sends a request to send signal, or RTS.
true
false
22 ISDN uses _______________ technology.
only digital
digital and analog
only analog
neither digital nor analog
mostly digital
23 A COM port is a _______ port.
parallel
serial
static
multi
scsi
24 Modems use ________________ transmission.
synchronous
asynchronous
timed interval
ata
bank
25 Which of the following can not cause CDs to be misread?
Being placed on a speaker
finger prints
scratches
cracks
slight melting
26 Which interface does CD-ROM drives typically not use?
parallel
ide
scsi
esdi
27 CD-ROM drives do not have which connector?
data cable
molex
audio cable
arcnet
28 In a computer with an eide adapter, where should you connect an ATA CD-ROM drive? Choose one:
on the floppy bus
on the primary ide
on the secondary ide
on the scsi bus
none of the above
29 Your IDE CD-ROM drive is attached to the primary IDE adapter with your hard drive. How should its jumpers be set?
as a master
as a slave
as neutral
auto detect
to 001
30 What does MSCDEX.EXE do?
configures hard drives
it's a scsi driver
bios setup
It's a CD-ROM DOS driver
nothing
31 A CD-ROM drive always uses IRQ....
9
10
11
5
depends on the adapter it's attached to
32 If a computer's bios allows it, you can boot from a CD-ROM.
true
false
33 A single speed CD-ROM drive transfers data at:
1 MB per second
100 bytes per second
20 million bits per second
186,282 bits per second
150 KBs per second
34 Your CD-ROM audio cable connects to the:
speaker
sound card (or motherboard if sound is integrated with it)
power supply
hard drive
bios
35 This statement is in autoexec.bat:
c:\dos\cdrom\mscdex /d:cdrom001 /l:e /m:10 /v

This statement is in config.sys:
device=c:\cdrom\atapicd.sys /d:cd001

Your CD-ROM drive is not working. What is wrong?
the "v" switch in autoexec.bat is invalid
the device name is not the same in both files
the "m" switch in autoexec.bat is set too high
config.sys is not using the dos directory
nothing, it should work
36 Which of the following are SCSI issues? Choose one:
unique id settings
limited cable length
parity
passive termination
All of the above
37 On some older SCSI adapters, the boot hard drive must be set to id#: (as a side note, some of the older IBM SCSI PCs had to have the boot hard drive set to id 6, but this question deals primarily with most other PC makes and clones)
2
3
0
9
11
38 You have a PC with a SCSI adapter built into the system board. It has only one connection (internal), which is used for your hard drive, CD-ROM drive, and tape drive. Your boss wants to connect a SCSI scanner to the PC, so you install a SCSI adapter with an external connection to support the scanner. Now you have a PC with two SCSI adapters. SCSI adapters normally use id# 7, which the onboard adapter is set for. The adapter you installed should: Choose one:
use a different id
use id 7 also with a different IRQ
not use an id
None of the above
39 You run a super wing-ding diagnostic program on your PC, and it reports that your hard drive, microprocessor, ram, and video card have seen better days. To resolve this problem you should:
replace each part one at a time, rerunning the diagnostic before replacing the next part.
check to see if you have a software problem
replace everything at once and rerun the diagnostic
get another copy of the diagnostic program
run an exhaustive memory check
40 Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because:
there are a lot more i/o addresses than IRQs
the bios sometimes has more of a problem controlling IRQs
i/o addresses cannot conflict
software tends to correct i/o conflicts
software tends to mess up IRQs
41 SCSI adapters usually don't need drivers, just the devices that interface with them.
true
false
42 Most SCSI-2 devices will work fine with SCSI-1 adapters.
true
false
43 Single-ended SCSI or "regular" SCSI has one wire for each signal that needs to be sent along the SCSI bus. Differential SCSI has two wires for each signal that is sent. Differential SCSI cable lengths can be up to 25 meters. How long can single-ended SCSI cables be?
up to 50 meters
up to 100 meters
up to 6 meters
up to 14 meters
up to 3 meters
44 Your PC has both internal and external SCSI devices connected to one SCSI host adapter. Which devices should be terminated?
the last internal & external device on the chain
the host adapter
the host adapter and one external device
the PC
45 How many devices can connect to the typical SCSI adapter? Assume is has only one data connector.
7
8
20
10
depends on whether both internal and external devices are used
46 How many devices can be used on a single SCSI bus? Keep in mind that the SCSI host adapter counts as a device.
7
8
20
10
47 What is the jumper setting on a SCSI device to configure it to use the fourth SCSI id? Remember, SCSI ids start with zero.
010
110
011
101
001
48 Which type of interface provides for the fastest data transfer?
IDE
SCSI
parallel
serial
ISA
49 In addition to i/o port addresses, SCSI adapters also use a range of rom addresses for their onboard bios.
true
false
50 SCSI-2 cables have how many pins?
40
25
50
72
100
51 IDE cables have how many pins?
25
50
100
40
65
52 You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
as a master
as a secondary
as a slave
as a primary
as auto-select
53 What is the maximum number of IDE drives that EIDE will support?
15
3
4
2
0
54 You are installing an IDE hard drive that will be your boot drive. Which is the correct order of steps that need to be followed?
jumper properly, auto-detect(or configure manually) in cmos, low level format, high level format, partition
jumper properly, auto-detect(or configure manually) in cmos, partition, high level format with /s switch
jumper properly, partition, auto-detect(or configure manually in cmos, high level format with /s switch
jumper properly, auto-detect in cmos, regular format
jumper properly, partition, low level format, high level format
55 On a flat data cable, a red or blue stripe means:
ground
high voltage
null connection
pin 1
that it's an IDE or SCSI cable
56 Which of the following would not be considered an FRU?
hard drive
system board
ram
DMA controller
level 2 cache simm
57 Which of the following would not be considered an FRU?
hard drive
any soldered IC
floppy drive
system board
58 You have a system that periodically locks up. You have ruled out software, and now suspect that it is hardware. What should you do first that could help you narrow it down to the component at fault?
replace the CPU
replace the ram
rotate the ram
disable the CPU cache in cmos
replace the level 2 cache simm
59 You have a PC with no video on a known good monitor. Pick the best order you should follow in tracking down the problem.
replace the video card, replace the monitor, replace the power supply, replace the system board, try a different monitor
check that PC and monitor are plugged in, check that monitor brightness is turned up, check that PC fan is running, remove all option cards
check PC supply voltages, replace video card, replace CPU
check that everything's plugged in, replace system board
check that everything's plugged in, replace hard drive, replace ram
60 Most PCs give a single beep on bootup to indicate they are ok hardware wise. You boot your PC and don't get a beep. What should you check first?
system board
ram
microprocessor
power supply
speaker
61 What beep codes could not indicate a system board or power supply failure?
steady short beep
one long continuous beep tone
steady long beeps
no beep
one long, two short beeps
62 Your PC is continuously rebooting itself. Which of the following could be causing the problem? Choose one:
faulty power at AC outlet
defective adapter card
bad system board
bad PC power supply
all of the above
63 You have an old PC that you decide to upgrade with a 1 gig IDE hard drive. You find that you can't configure cmos to see the entire hard drive. The best you can do is 540 meg. What is the fix?
put multiple partitions on the hard drive
make the bios think it's a SCSI drive
get a newer PC
manually input the sectors, cylinders, and heads of the hard drive
use a device driver that makes the bios see the drive as simply a block storage device, or upgrade the bios if possible
64 A sound card typically uses which IRQ?
1
5
6
15
it doesn't use an IRQ
65 Your IDE hard drive is not spinning up when you turn on the PC. What is the most likely problem?
bad system board
virus
loose molex connector
bad data cable
incorrect jumper setting on drive
66 You have a PC with no video. Which of the following is least likely to be causing the problem?
low AC outlet power
loose video card
crashed hard drive
defective microprocessor
defective ram (bank zero)
67 A virus can mimic just about any hardware symptoms you can think of.
true
false
68 A static jolt of as little as ____ volts can fry almost any PC integrated circuit.
200
30
500
20
1000
69 A human cannot feel a static discharge as high as ____ volts.