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Power Point And U Certify > Chapt 1 > Flashcards

Chapt 1 Flashcards

1
Q

Which slot is designed to be a direct connection between the video circuitry and the PC’s memory?
PCIe
RAM
AGP
LGA

A

AGP

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2
Q

In comparison to read only memory (ROM), which of the following is an advantage of random access memory (RAM)?
it can never be accidentally changed or deleted
it takes a special writing machine to write one
it can be written and rewritten on the device in which it is installed
it is slow and can’t be updated

A

it can be written and rewritten on the device in which it is installed

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3
Q

Which of the following are communications devices for computers? Choose Two:

modem
NIC
Sound Card
PCIe

A

modem and NIC

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4
Q

why is land grid array (LGA) sturdier than pin grid array (PGA)?
because LGA sockets have holes
because LGA has the pins in the socket versus on the processor
because LGA sockets have contacts built into them
because LGA has a more complex locking harness

A

because LGA has the pins in the socket versus on the processor

LGA is sturdier than PGA because it has the pins in the socket versus on the processor, which results in less damage to processors from tring to insert them incorrectly into their sockets. PGA sockets have holes, and the processors have pins that fit into the holes. LGA sockets have contacts (often pins) built in to them, which connect with contacts on the cpu. Both sockets have locking mechanisms to hold the processor in place. PGA uses a simple lever, while LGA has a more complex locking harness

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5
Q

which of the following optical disks will store the most data?
CD-ROM
DVD-ROM DL
DVD-ROM DS
BD-ROM

A

BD-ROM store 25Gb per side per layer

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6
Q

which of the following devices is most likely to have a joystick port on it?
network card
modem
video card
sound card

A

sound card
older sound cards had 15-pin joystick ports on them, as well as audio input and output jacks

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7
Q

what type of expansion card allows your computer to talk to other computers without wires?
NIC
modem
PCIe
PSU

A

NIC
a network interface card lets your computer participate on a network, either wired or wireless. modems require telephone lines. PSU is a power supply unit and PCIe is an expansion slot type

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8
Q

which components in your computer store data? choose three:
BD-ROM
PSU
PCI
SSD
RAM

A

BD-ROM
SSD
RAM

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9
Q

Which of the following is faster than RAM?
BD-ROM
none of these
cache
HDD
SSD

A

cache is temporary memory that is closer to the processor than RAM, and it is therefore slightly quicker. it usually comes in smaller quantities though.

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10
Q

which of the following uses a 240 pin connector
SODIMM
DIMM
SATA
PATA

A

DIMM

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11
Q

WHICH OF THE FOLLOWING ARE HARD DRIVE CONNECTOR TYPES? choose 2:
AGP
PATA
SATA
PCIe

A

PATA, SATA

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12
Q

there are a number of discs that are used for data storage and are available in different formats with their capacity. which of the following combinations of disk format and capacity is NOT correct?
DVD-R,DVD+R DS,SL, 50GB
BD-R/RE SS, SL, 25GB
DVD+R SS, DL, 8.5GB
DVD+R/RW SS, SL 4.7GB

A

DVD-R,DVD+R DS,SL, 50GB

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13
Q

DVD+R SS, DL disk formats have a capacity of ?

A

8.5GB

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14
Q

BD-R/RE SS,SL disk formats have a capacity of ?

A

25GB

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15
Q

DVD+R/RW SS, SL disk formats have a capacity of ?

A

4.7GB

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16
Q

you just installed more memory in your computer, but it’s not recognized. your friend suggests that you upgrade your BIOS. whats the best way to do this?
flash the BIOS
order a new BIOS chip from the memory manufacturer
order a new BIOS chip from the motherboard manufacturer
you cant upgrade the BIOS

A

flash the BIOS

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17
Q

Which of the following processor types is most likely to be found in a smartphone?
GPU
32-bit
ARM
Intel

A

ARM

small devices, such as smartphones and tablets, are most likely using ARM processors. They could be 32-bit or 64-bit
GPU is for video processing and intel does not currently produce ARM chips

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18
Q

which connector allows the motherboard to be connected to the power supply to receive power?
SATA hard drive connector
VGA connector
IDE hard drive connector
24-pin block connector

A

24-pin block connector

computers are obviously electronic devices, and electronics, of course, require power. in addition to the other sockets and slots on the motherboard, a special connector, the 24-pin block connector, allows the motherboard to be connected to the power supply to receive power. this connector is where the ATX power adapter plugs in

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19
Q

_____ is the unidirectional flow of electric charge.
AC
ATX
SATA
DC

A

DC

direct current(DC) is the unidirectional flow of electric charge. unlike alternating current (AC), DC does not alter the direction in which the electrons flow

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20
Q

your friend Joe wants to add another hard drive to his computer. what should he check to make sure that his system will support it?

expansion slots
PSU
RAM
CPU

A

PSU
joe needs to make sure his power supply unit (PSU) has a free connector as well as enough power to supply the drive.
hard disk drives do not use expansion slots.
the CPU and Ram are indifferent to how many hard drives there are.

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21
Q

which divice is connected to the motherboard with a 24-pin block connector?

HDD
PSU
RAM
SSD

A

PSU

the power supply unit (PSU) is connected to the motherboard with a 24-pin block connector

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22
Q

a user named Monika wants to upgrade the memory in her laptop. what type of memory will she need?
SODIMM
DDR3
DDR4
DIMM

A

SODIMM

SODIMM’s are made for laptops
DIMMs are for desktops
SODIMMs come in DDR2,3,4, so without more info we don’t know

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23
Q

most home computer components are ____ . that is, they can be removed and replaced by another piece of hardware that does the same thing, provided that it’s compatible and that it fits

A

modular

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24
Q

FRU

A

field replaceable units

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25
are smartphones modular?
no
26
_____ are usually a combination of metal and plastic and serve two primary functions: keeping all the components securely in place protecting the components from harm
case
27
it connects all the other components
motherboard
28
another name for the motherboard
system board
29
PCB
printed circuit board
30
the most common form factors for mother boards, name 3
ATX, micro ATX and ITX
31
ATX
advanced technology extended
32
the collection of small form factor (SFF) boards are called?
ITX
33
the functions of chipsets can be divided into two major groups
northbridge and southbridge
34
____ is responsible primarily for communications with integrated video and processor-to-memory communications
northbridge
35
the communications between the CPU and the memory occur over what is known as the ?
Front Side Bus
36
______ is a set of signal pathways between the CPU and any external cache memory
backside bus
37
_____ is responsible for providing support to the onboard slower peripherals and managing their communications with the rest of the computer and the resources given to them.
south bridge
38
a _____ is a common collection of signal pathways over which related devices communicate within the computer system.
bus
39
a _____ bus communicates one bit of data at a time
serial
40
a ____ bus communicates in several channels at once
parallel
41
today, many of the fastest peripheral-connection tech's in use are all ________? parallel, serial
serial
42
______ sockets have holes, and the processors have pins that fit into the holes
PGA
43
____ sockets have contacts (often pins) built into them, which connect with contacts on the CPU
LGA
44
____ has a more complex locking harness. LGA, PGA, BGA
LGA
45
______ sockets use small balls as their contact points.
BGA
46
_____ is the primary memory used to store currently used data and instructions for the CPU
RAM
47
memory between the CPU and RAM
cache
48
_____ is a fast form of memory and it improves system performance by predicting what the CPU will ask for next and prefetching this information before being asked.
cache
49
three main type of expansion slots
PCI, AGP, PCIe
50
PCI
peripheral component interconnect
51
PCI data rate
133 MBps and 266 MBps
52
bus speed (how fast it is) multiplied by the channel width (how much it can push through in bytes) to get the
data rate
53
PCI slots and adapters are manufactured in what two versions
3.3 and 5V
54
a legacy video card most likely uses what type of expansion slot
AGP
55
AGP 1x uses a 32-bit (4-byte) channel and a 66 MHz clock which gives a data rate of ?
4-bytes * 66 MHz = 266 MBps
56
name the 7 different speeds supported by PCIe
1,2,4,8,12,16,32
57
PCIe x 1 runs at ____ MBps
500
58
PCIe 4.0 with a x16 card can operate at ____
31.5 GBps
59
IDE
integrated drive electronics
60
____ is the name given to any software that is encoded in the hardware
firmware
61
BIOS
basic input output system
62
upon power on BIOS runs _____ first
POST test
63
The bios settings are stored on the ______ chip?
CMOS
64
Amd
Advanced micro devices
65
RISC
reduced instruction set computing
66
CISC
intel’s complex instruction set computing
67
Advantages to RISC processors
Smaller, generate less heat
68
Hertz (Hz)
Electric cycles per second
69
_____ is a quick form of memory that greatly speeds up the performance of the computer
Cache
70
EEPROM
Electronically Erasable programmable ROM
71
SRAM
Static ram , used in L2,, L3 cache
72
DRAM
Dynamic RAM is volatile (needs power to retain values)
73
Virtual memory is also called a _____ file
Swap or page file
74
If you need to touch the computer, do what first?
Discharge static electricity by touching the case
75
keeps the content with itself till the power is provided static dynamic rom ram
static
76
retains it contents but has to be constantly powered static dynamic rom ram
dynamic
77
stores information permanently and cannot be modified static, dynamic, rom, ram
rom
78
provides information stored in whatever location static, dynamic, rom, ram
ram
79
DDR pin sequence for DIMM
184, 240, 240, 288, 288
80
DDR pin sequence for SODIMM
200, 200, 204, 260, 262
81
which of the following devices are used to permanently store user data in a computer? Choose all that apply. A) RAM B) HDD C) SSD D) ROM
HDD, SDD, ROM
82
what is the capacity of a DVD+R SS, DL?
8.5 Gb
83
what is the capacity of a DVD+R/RW SS, SL
4.7 Gb
84
which of the following statements is NOT true of the liquid cooling method? A) it moves heat away from the heat sink immediately B) it is more efficient and much quieter C) it is expensive and requires less familiar components D) it uses special water block to conduct heat away from the processor
it moves the heat away from the heat sink immediately

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