CompTIA A+ Training Kit: Understanding RAM and CPUs

Chapter Review

Use the following questions to test your knowledge of the information in this chapter. The answers to these questions, and the explanations of why each answer choice is correct or incorrect, are located in the “Answers” section at the end of this chapter.

1. You are replacing two DDR3 DIMMs in an Intel dual-channel motherboard. Into which slots should you put them?

   1. Two different-colored slots

   2. Two identical-colored slots

   3. Separate banks

   4. Slots 1 and 4

2. You are shopping for replacement DDR3 RAM. Your system has a 400-MHz clock. What should you buy?

   1. PC3-400

   2. DDR3-400

   3. PC3-25600

   4. PC3-12800

3. An Intel CPU has two cores, but the operating system shows it has four CPUs. What feature allows this to happen?

   1. Hyper-threading

   2. HyperTransport

   3. Dual-channel RAM

   4. L2 cache

4. Of the following choices, which is fastest?

   1. L1 cache

   2. L2 cache

   3. L3 cache

   4. Triple-channel DDR3

5. Which of the following replaces the Intel Socket H?

   1. LGA 775

   2. LGA 1366

   3. LGA 1156

   4. LGA 1155

6. You are asked to troubleshoot a computer that is randomly rebooting or failing. Of the following choices, what hardware can cause these symptoms? (Choose all that apply.)

   1. RAM

   2. Fan

   3. Power supply

   4. Virus