CompTIA A+ Core 1: RAM & Storage Solutions

Question 1

In which use cases would you most likely benefit from using virtual memory?

Answer 1

When your system does not have enough RAM installed

Question 2

A SODIMM is most likely to be found in which type of system?

Answer 2

Laptop

Question 3

If a DDR3 memory module is labelled “DDR3-1600”, to which value does the 1600 refer?

Answer 3

Million transfers per second (MT/s)

Question 4

What is the maximum bandwidth for the latest revision of DDR memory?

Answer 4

25,600 MBps

Question 5

At which voltage does DDR5 memory operate?

Answer 5

1.1V

Question 6

If a byte is written to an ECC memory module that has four-bit values set to 1, and four set to 0, which type of parity information will be used?

Answer 6

Even parity

Question 7

What is the overall bus width for a system that uses single channel memory?

Answer 7

64 bits

Question 8

If your system supports dual channel memory, and has four physical slots, in which configuration should the memory modules be installed if you only have two modules?

Answer 8

One in channel A, and one in channel B

Question 9

What is the overall bus width for a system that uses triple channel memory?

Answer 9

192 bits

Question 10

If your system supports quad channel memory, and you have six physical memory modules, which is the optimal channel configuration that should be used?

Answer 10

Triple channel

Question 11

What is the most common platter rotation speed for a hard drive found in a desktop computer?

Answer 11

7200 RPM

Question 12

Which of the following characteristics would be not be attributed to a solid-state drive?

Answer 12

Less expensive

Question 13

Which RAID configuration is typically implemented with 2, and only 2 disks?

Answer 13

1

Question 14

What is the maximum storage capacity for a typical compact disc (CD)?

Answer 14

650-700 megabytes