Exam 8


WHAT TO KNOW

to ace your Comptia Core and OS Technologies A+ Certification Tests

with MOST of the type of questions you'll likely see on the new exams




Exam 1

Exam 2

Exam 3

Exam 4

Exam 5

Exam 6

Exam 7

Exam 8

Exam 9

Exam 10


Cable Types

Coaxial

RG8-
10Base5 thicknet

RG58/U-
10Base2 thinnet solid core (50 ohms)

RG58A/U-
10Base2 thinnet with stranded core (50 ohms)

RG59-
broadband/ cable TV (75 ohms)

RG62-
ARCNet (93 ohms)


UTP
Transfer Rates in Mbits/sec

CAT3-
10 Mbps

CAT5-
100 Mbps

CAT5/e-
1 Gbps

CAT6-
10 Gbps


Connection Transfer Rates in MBytes/sec

Note: 1 MBps is 8 Mbps

serial
0.014 MBps (slowest)

parallel
0.115 MBps (8x faster than serial)

USB
1.5 MBps (100x faster than serial)

SCSI-2 Fast Narrow
10 MBps

SCSI Ultra
20 MBps

IDE Ultra 33
33 MBps

SCSI Ultra Wide
40 MBps

IEEE 1394 FireWire
50 MBps

SCSI Ultra2 Wide
80 MBps



1. The fastest SDRAM of the following listed?
6ns
30ns
80ns

2. When two programs try to write to the same memory space in win9x a __ error occurs?
NLX
SRC
GPF

3. A customer says his computer is experiencing numerous power blackouts and he is losing his data. He has nothing between the computer and AC outlet. What do you advice him to purchase?
surge suppressor
line conditioner
UPS

4. Assists the main CPU by controling the computer's timing, cache, IRQs, DMAs?
disk cache
CMOS
chipset

5. A networking cable which is the least sensitive to electromagnetic interference?
Fiber Optic
Thinnet
UTP

6. What diagnostic setup file in win9x contains the hardware detected during installation of the operating system?
SETUPLOG.TXT
DETLOG.TXT
HWLOG.TXT

7. Upper memory is composed of six 64K blocks (384K) of memory above the conventional memory. What is the first set of blocks from A0000 to C0000 reserved for (hint: one of the other items listed uses the last block of Upper Memory) ?
video BIOS
motherboard BIOS
High Memory

8. The reason computer batteries should be recycled is they can contain __. A poisonous element that is dangerous to people and the environment?
bismuth
hafnium
mercury

9. Using Win 2000 or XP Pro you can convert a dynamic disk to a basic disk by right-clicking the dynamic disk that you want to convert and choosing Convert To Basic Disk. This ___ (hint: you must r click the Disk 0 not the volumes C: D: E: ...) ?
will convert it but also deletes all your data on the disk
is a lie, you cannot convert a dynamic disk back to basic
converts the disk without effecting the data

10. Can be thought of as a set of wires that carries information throughout the computer?
bus
cache
zeon splitter

11. To completely remove a problem device so that you can reinstall it, you may have to go to four different areas of win9x. These are the add/ remove programs, explorer, the device manager, and __?
DOS
registry
system properties

12. The first CPU to have a 32 bit external data bus was the 386DX. The first CPU to have a 64 bit external data bus is the ___ ?
Pentium II
Pentium IV
Pentium

13. This type of encryption is the most powerful in the world. It is used by the U.S. government for the highest levels of security and uses 168 bit encryption?
SSL
RSA
Triple DES

14. The fastest bus?
EISA
VESA
PCI

15. To install USB or IEEE 1394 (FireWire) devices that are Plug and Play compliant using Win XP?
you must turn the computer off first, then plug the device in and it will be detected automatically when you restart the computer
you must turn the computer off first, then plug the device in and on restart Win XP detects the device, then use the Add New Hardware wizard to install and configure the device
just plug the device in and it will be detected automatically even without restarting the computer

16. What is the standard cable type for an IEEE 802.3 Ethernet network?
STP
UTP
BNC

17. The CPU is the fastest running component of your PC. Because is runs so much faster than anything else, it stores what its done in a __ so it doesn't have to WAIT. The other devices can then go here and use this information at their own pace while the CPU continues on with its the next job.
floppy
cache
hard drive

18. Windows 98 subdirectory where all the device drivers are located?
INF
Command
System

19. In a laser printer, during which of the phases is the toner applied to the paper?
conditioning
transferring
developing

20. Win 2000 supports all of these file systems except ___?
HPFS
FAT16
NTFS

Grade =
Correct answers are:







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