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قديم 10-21-2010, 01:53 AM   #2
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تاريخ التسجيل: Oct 2010
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افتراضي رد: IT Essentials 4.1 نماذج الامتحانات



1 محدد الخصائص
Which two characteristics are determined by the chip set on a motherboard? (Choose two.)
maximum amount of memory that can be installed
operating system compatibility
type of connectors that will be on the motherboard
keyboard layout


2بارز متوفر
PATA data cables are available in two different types. The types are distinguished by the number of conductors. Which two types are available? (Choose two.)
6
40
68
80
120



3
صنف الاصناف
Which two categories are used to classify CPU architecture? (Choose two.)
ATX
BTX
CISC
PnP
RISC
ZIF



4
معدل عاجز
Which type of memory is unable to have the contents modified?
DRAM
RAM
ROM
SRAM



5

مقدم المعروض حل
Refer to the exhibit. What is the maximum length of the cable presented in the graphic, which is commonly used for connecting a computer to a printer? تخطيطي
15 ft (4.5 m)
20 ft (6 m)
27 ft (8 m)
30 ft (9 m)





6
تخزين
A technician needs to back up 4 GB of data using a single storage medium. Which medium can hold the entire 4 GB on a single disc?
floppy disc
CD-RW
CD-R
DVD+/-R




7
الادوات
Which two devices are considered input devices? (Choose two.)
biometric authentication device
printer
digital camera
projector
speakers




8
اتصالات عموما مصادر
Which three system resources are commonly used for communication between the CPU or memory and other components in the computer? (Choose three.)
IRQ
DMA

UDP
I/O address
USB
PnP




9
معروض
Which important feature is offered by the USB standard?
A single USB connection to a computer can support up to 255 separate devices.
It offers rates of around 580 Mb/sec in low-speed mode.
It allows up to 920 Mb/sec in the 2.0 version

. سماح
It can supply power from the computer to devices.



10 معالج مصادر
Which type of computer resources are direct lines to the processor used by computer
المكونات
components to request information from the CPU?
DMAs
I/O addresses
IRQs
memory addresses




11
محدد خصائص
Which two characteristics of a motherboard can be determined by the form factor? (Choose two.)
type of processor supported
color
size
maximum memory supported
shape




12

Which two form factors are commonly used to build a new computer? (Choose two.)
BTX
NLQ
ATX
CLV
ECC




13

اوليا
Which type of memory is primarily used as cache memory?
DRAM
RAM
ROM
SRAM




14
مصمم الهندسة المعمارية
Which CPU architecture uses a small set of instructions that are designed to be
executed rapidly منفذ بسرعة?
CISC
RAID
RISC
RISK
SCSI




15

الوصلة الموصل
What are the two connector types for the 1394a interface? (Choose two.)
2-pin
4-pin
6-pin
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8-pin
9-pin
15-pin




16


A technician has been asked to install memory that detects multiple bit errors and corrects single bit errors in memory. Which type of memory should be installed if the motherboard supports these features?
parity
ECC
fault tolerant
CRC




17


Which type of ROM can be reprogrammed with software while it is still physically installed in the computer?
EEPROM
EPROM
PROM
ROM





18

مسيطر عليه
Which two activities are normally controlled by the Northbridge part of the chip set? (Choose two.)
communication between the CPU and the I/O ports
access to the RAM
communication between the CPU and the hard drive
access to the video card
communication between the CPU and the sound card




19

تخطيطي المعروض
Refer to the exhibit. Which type of cable is shown in the graphic?
FireWire
Parallel
Serial
USB




20

قائد الفرق الموسيقية
How many conductors are found in a SATA data cable?
3
4
7
10
12




21


A technician is helping a customer compare two hard drives. Which unit of measurement is used for the hard drive speed?
revolutions per minute
gigabytes
pages per minute
clusters per minute




22

معتبر
Which three devices are considered output devices? (Choose three.)
fingerprint scanner
headphones
keyboard
monitor
mouse
printer



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