3.8 Quiz
Which of the following are true regarding a dual channel memory bandwidth configuration?
1. Bandwidth is increased by 5-15% 2. The memory controller must support dual channels
You have an existing system that has a single DDR3 memory module installed. You would like to add more memory to the three remaining empty memory slots. Which of the following steps should MOST likely be taken to make sure you get the right memory for the system?
1. Purchase additional modules that are the same as what is currently installed. 2. Check the motherboard documentation to find which modules are supported.
You have a computer that has four DDR2 memory slots. Currently, there are two 512 MB memory modules installed. You check the motherboard documentation and find that the system has a 4 GB memory limitation. You want to add more memory to this system. By adding new memory modules, and without replacing the existing memory modules, what is the maximum total amount of usable RAM you can have in this system?
3 GB
You want to build a new system that supports 6 GB of memory. Which of the following will be the MOST important consideration when building the computer?
64 bit processor
You have a computer with a Pentium 4 CPU and two PC-2400 DDR modules. The motherboard has room for two additional memory modules, and you'd like to install two PC-4000 modules. Which of the following statements is true?
All memory will operate at 300 MHz.
What type of RAM might slow system performance because it holds memory addresses or data to improve stability on systems with more than 1 GB of RAM before it is transferred to the memory controller?
Buffered
A new computer is being purchased for Peter, the new administrative assistant. Peter primarily uses word processing, spreadsheets, presentation software, and a web browser to complete his job assignments. Which of the following BEST describes the reason to choose unbuffered instead of buffered memory for this new computer?
Buffered memory is more expensive and slower than unbuffered memory.
You work as the IT administrator for a small corporate network. Sam, an employee in the support department, wants to run a virtual machine on his computer to troubleshoot customer issues from, and he needs a very stable computer from which to work. You need to decide whether to install buffered or nonbuffered RAM in his computer. Which of the following BEST describes the reason to choose buffered instead of unbuffered memory for this new computer?
Buffered memory reduces the load on the memory controller and allows the system to be more stable.
With a memory module read request, there is a delay between the time of the data request and the time the data is available for output from the memory module. What is this delay called?
CAS latency
You want to upgrade all memory in your system with the fastest memory available. Which of the following should you choose?
Choose the type of memory that is supported by your motherboard.
You are in a carpeted office lighted by fluorescent bulbs. You are preparing to add memory modules to a user's computer. The user has already unpacked the memory modules and stacked them on top of an old, unused CRT monitor. In this environment, what is the greatest threat to these memory modules?
Electrostatic discharge (ESD)
Which of the following is the most common method for removing RAM from a motherboard?
Move the tabs holding the RAM out of the way; pull straight up to remove the RAM.
Paul has just joined your company, and you are in the process of purchasing a laptop computer for his use. Paul will work as a sales rep in the sales department. You have heard that some types of RAM are better than others. Which of the following types of RAM would BEST meet the needs of Paul's new computer?
Non-ECC memory, as it is less expensive, and parity is not required.
Which of the following statements is true regarding single and double sided memory?
Single sided memory uses half the number of memory modules as double sided memory of the same capacity.
