A+ 901 Test 3

Question 1

For CPUs without integrated memory controller, which part of the chipset manages communication between the CPU and memory?

Answer 1

Northbridge

Question 2

In order to retain its configuration data, CMOS RAM requires constant supply of electricity which is provided by the:

Answer 2

CMOS battery

Question 3

Which of the answers listed below refers to a source of power for an RTC when the computer is turned off? 
Power inverter
CMOS battery
Power Supply Unit (PSU)
AC adapter

Answer 3

CMOS battery

Question 4

What is the name of the most common connector type used for providing power to various hardware components inside the computer case?

Answer 4

Molex

Question 5

A switch, button, or LED on the front/top panel of a computer case has a connector linked to it that must be attached to the appropriate pins on the:

Answer 5

Motherboard

Question 6

Which of the memory types listed below are designed to store permanent data that cannot be changed?
RAM
EPROM
ROM
PROM
EEPROM

Answer 6

ROM

PROM

Question 7

Random Access Memory (RAM) falls into the category of the so-called volatile storage media. It requires a continuous flow of electricity to preserve its contents thus all the data stored in RAM lasts only while the power is on. (True or False)

Answer 7

True

Question 8

Which of the answers listed below refer(s) to the characteristic feature(s) of Static Random Access Memory (SRAM)?
Non-volatile storage media type
Faster than Dynamic Random Access Memory (DRAM)
Widely used as system’s primary storage media (regular RAM modules installed in memory slots on the motherboard)
More expensive in comparison to Dynamic Random Access Memory (DRAM)
Slower than Dynamic Random Access Memory (DRAM)
Volatile storage media type
Utilized for CPU cache memory chips
Less expensive in comparison to Dynamic Random Access Memory (DRAM)

Answer 8

Faster than Dynamic Random Access Memory (DRAM)
More expensive in comparison to Dynamic Random Access Memory (DRAM)
Volatile storage media type
Utilized for CPU cache memory chips

Question 9

Which of the following answers describes(s) the characteristics of Dynamic Random Access Memory (DRAM)?
Volatile storage media type
Utilized for CPU cache memory chips
More expensive in comparison to Static Random Access Memory (SRAM)
Non-volatile storage media type
Slower than Static Random Access Memory (SRAM)
Widely used as system’s primary storage media (regular RAM modules installed in memory slots on the motherboard)
Faster than Static Random Access Memory (SRAM)
Less expensive in comparison to Static Random Access Memory (SRAM)

Answer 9

Volatile storage media type
Slower than Static Random Access Memory (SRAM)
Widely used as system’s primary storage media (regular RAM modules installed in memory slots on the motherboard)
Less expensive in comparison to Static Random Access Memory (SRAM)

Question 10

The term “Synchronous Dynamic Random Access Memory (SDRAM)” refers to a broad category of DRAM modules that rely on the signal sent by the system clock in order to coordinate their functioning with other internal PC components. (True or False)

Answer 10

True

Question 11

Which of the statements listed below are true?
The speed of the system bus is measured in clock cycles
In computer architecture, the term “word” refers to a group of bits processed as a unit
The speed of the system bus in modern PCs is measured in GHz (i.e. billions of cycles per second)
A single clock cycle is an equivalent of a period of time between two adjacent signals sent by the system clock
The speed of the system bus in modern PCs is measured in MHz (i.e. millions of cycles per second)
Depending on the system specs, a single clock cycle might be an equivalent of multiple ticks of the system clock

Answer 11

The speed of the system bus is measured in clock cycles
In computer architecture, the term “word” refers to a group of bits processed as a unit
A single clock cycle is an equivalent of a period of time between two adjacent signals sent by the system clock
The speed of the system bus in modern PCs is measured in MHz (i.e. millions of cycles per second)

Question 12

A Single Data Rate Synchronous Dynamic Random Access Memory (SDR SDRAM) can read/write one word of data per clock cycle. (True or False)

Answer 12

True

Question 13

What is the number of contact pins used in SDR SDRAM modules?

Answer 13

168

Question 14

The placement of a notch on the RAM module contact surface allows for proper alignment of the module with the memory bank on the motherboard and prevents the installation of incompatible memory types. (True or False)

Answer 14

True

Question 15

What are the characteristic features of the Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM)?

Answer 15

184 contact pins
Reads/writes 2 words of data per clock cycle
1 notch on the module contact surface

Question 16

Which of the answers listed below refers to the industry name used for DDR-333 modules? 
PC-2100
PC-2400
PC-2700
PC-3200

Answer 16

PC-2700

Question 17

What is the peak transfer rate of a DDR-266 module?

Answer 17

2133 MB/s

Question 18

What are the characteristic features of the Double Data Rate 2 Synchronous Dynamic Random Access Memory (DDR2 SDRAM)?

Answer 18

Reads/writes 4 words of data per clock cycle
1 notch on the module contact surface
240 contact pins

Question 19

Which of the following answers refers to the industry name used for DDR2-1066 modules?

Answer 19

PC2-8500

Question 20

What is the total bandwidth of a DDR2-533 module?

Answer 20

4266 MB/s

Question 21

What are the characteristic features of the Double Data Rate 3 Synchronous Dynamic Random Access Memory (DDR3 SDRAM)?

Answer 21

1 notch on the module contact surface
240 contact pins
Reads/writes 8 words of data per clock cycle

Question 22

Which of the answers listed below refers to the industry name used for DDR3-1333 modules? 
PC3-6400
PC3-8500
PC3-10600
PC3-12800

Answer 22

PC3-10600

Question 23

What is the maximum amount of data that can be transferred each second by a DDR3-1600 module?

Answer 23

12800 MB/s

Question 24

Which of the answers listed below describe(s) the characteristics of Dual In-line Memory Modules (DIMMs)?
Printed Circuit Board (PCB) type used as a placeholder for memory chips
32-bit data path
Separate electrical contacts on each side of the module
Obsolete memory packaging type used only in legacy systems
64-bit data path
Unified electrical contact surface spanning both sides of the module
Used with various SDRAM memory types (SDR, DDR, DDR2, and DDR3)

Answer 24

Printed Circuit Board (PCB) type used as a placeholder for memory chips
Separate electrical contacts on each side of the module
Used with various SDRAM memory types (SDR, DDR, DDR2, and DDR3)
64-bit data path

Question 25

What is the most common memory module form factor type used in laptop computers?

Answer 25

SO-DIMM