IT1600 Memory, Memory Installation, Memory Troubleshooting

Which memory rating identifies the fastest memory?

DDR3-2000

Which of the following BEST descries the theoretical capacity of a DDR4 standard system memory module?

512 GB

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.

Assuming the same operating frequency, what advantages does DDR4 have over DDR3?

DDR4 doubles the data transfer rate of DDR3 DDR4 uses less power than DDR3

Which of the following are terms used to identify memory modules?

DIMM Explanation: A DIMM (dual in-line memory) has pins on both sides of the module, with each pin being unique.

Which of the following is an error detection technique that can also correct the error?

ECC Explanation: Error Correcting Code (ECC) can detect and correct errors

You are attempting to boot a new system. The boot fails, and the system sounds a beep code. Which of the following describes the MOST likely cause of this error?

Either no memory is installed or the memory was not detected

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

There are critical times when memory problems often manifest themselves. Match the critical times on the left with the corresponding descriptions on the right of the causes of the memory problems.

1. Software Installation - This event can require more memory and can cause problems if there is not enough memory when it occurs 2. First boot of a new computer - Memory is not properly seated or missing/the motherboard is defective. 3. Hardware installation or removal - Incompletely or improperly doing this can cause errors that appear to be memory-related 4. Memory upgrade - The memory is not compatible and was not installed and configured properly

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

What is the approximate bus speed of DDR2 memory read at PC2-5300?

333 MHz

You want to build a new system that supports 6B of memory. Which of the following will be the MOST important consideration when building the computer?

64-bit processor Explanation: To use over 4GB of memory, you need a 64-bit processor and 64-bit operating system.

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.

Your motherboard has sockets for 184-pin DIMM RAM. Which type of RAM should you install?

DDR

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 Explanation: Buffered RAM improves stability on systems with a lot of RAM, but it might slow system performance

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 dcomputer from which to work. You need to decided whether to install buffered or non buffered RAM in his 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 have an existing system that has a single DDR3 memory module installed. You would like to add more memory to 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?

Check the motherboard documentation to find which modules are supported. Purchase additional modules that are the same as what is currently installed.

Assuming the same operating frequency, what are the advantages of DDR3 over DDR2?

DDR3 doubles the data transfer rate of DDR2 DDR3 uses less power than DDR2

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 just replaced the motherboard, CPU, and memory in your computer. Now your computer will not start. You press the power button on the system case, but nothing happens, there are no sounds or lights. What should you do?

Connect the power button to the motherboard. Explanation: The system case power button connects to jumper pins on the motherboard. When you press the power button, the cable sends the power on signal to the computer.

Which of the following memory ratings identifies the fastest memory?

DDR3-1600 Explanation: It has a bus frequeny of 800 MHz and bandwidth of 12800 MB/s. For DDR, DDR2, DDR3 and DDR4, the number following the DDR- designation is always twice that of the bus speed, specifying that the double data rate memory transfers double the data in a single clock cycle.

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 and stacked them on top of an old, unused CRT monitor. What is the greatest threat in this environment that could damage these memory modules?

Electrostatic discharge (ESD)

You have installed a new computer with a quad-core 64-bit processor, a 6 GB of memory, and a PCIe video card with 512 MB of memory. After installing the operating system, you see less than 4 GB of memory showing as available in Windows. Which of the following actions would MOST likely rectify this issue?

Install a 64-bit version of the operating system

You have just received an order of various system components from an order you placed several weeks ago. One of the components is labeled as SODIMM memory For which of the following was this memory MOST likely purchased?

Laptop computers Explanation: Small outline dual in-line memory modules (SODIMM) is a compact form factor of DIMM. It is typically used in smaller computers, such as laptops.

After installing two memory modules, you power on the system to check for errors. You find that the BIOS program recognizes only one of the memory modules. While troubleshooting this issue, which of the following is BEST to try first?

Make sure that both modules are seated properly in their slots

A customer needs to use several applications. Currently, the computer cannot keep all the necessary applications open at the same time. Which of the following components should you consider upgrading?

Memory Explanation: When an application is started, it is loaded into memory. If the computer does not have sufficient memory, the application cannot start. To remedy this problem, add more memory to the computer.

You have just built a new system from scratch. You turn the computer on, but the system boot fails and sounds a beep code. Which of the following is the MOST likely cause?

Memory not installed or not detected

You are in the process of configuring a new computer. The motherboard has four memory slots and supports dual-channel memory. You install two memory modules. When you boot the computer, the BIOS recognizes both modules, but the memory is not configured to run in dual-channel mode. What should you do?

Move the modules to the correct motherboard slots Explanation: Dual-channel memory, you will need to install memory in the correct slots. Depending on the motherboard, the two slots might be next to each other or alternating.

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 departmentYou ahve heard that some types of RAM are better than others. which of the following type of RAM would BEST meet the needs of Paul's new computer?

Non-ECC memory, as it is less expensive, and partity is not required

Which type of software-generated problems can indicate that a software bug is causing a memory error?

Page fault Exception error General-protection fault

Which of the following is an error detection technique that can detect errors with only one bit?

Parity

Which of the following are true regarding a dual-channel memory bandwidth configuration? (SELECT TWO)

The memory controller must support dual-channels. Bandwidth is increased by 5-15%.

A laptop that you previously purchased was shipped with SODIMM memory to accommodate the laptop's form factor. You would now like to upgrade the memory. Which of the following is an upgrade to the SODIMM standard?

UniDIMM Explanation: UniDIMM (Universal DIMM) is a specification for DIMMs and is designed to carry DRAM chips. UniDIMMS can be populated with either DDR3 or DDR4 chips, but do not support any additional memory control logic. Because of this, the computer's memory controller must support both DDR3 and DDR4 memory standards. UniDIMM: Is an upgrade to the current SODIMM standard and allows mobile platform users to use both DDR3 and DDR4

Consider the memory modules shown in the image below. Drag the label on the left and drop it on the letter on the right that best identifies the associated memory module form.

a) DDR DIMM b) DDR3 DIMM c) DDR4 DIMM d) DDR2 DIMM e) 200-pin SODIMM f) 144-pin SODIMM g) UniDIMM