ITI-107 Unit 2
A field service technician is replacing a server motherboard that supports CPUs with multithreading capabilities. The technician notices the motherboard has four processor sockets. If each socket supports a quad-core processor, how many logical processors does the system appear to have? 16 8 32 4
32
For maximum efficiency and performance, a highly tuned and specialized application needs to run on a system capable of handling exactly 16 threads at the same time from the operating system. Which two of the following will best meet the specified requirement? A system board with two quad-core processors A system with a 64-bit operating system installed A motherboard with two 8-core processors A system board with four quad-core processors A motherboard with four dual-core processors
A system board with two quad-core processors Correct. The number of threads is determined by multiplying the number of CPUs times the number of cores times 2 (each core can handle two threads). 2 CPUs x 4 cores x 2 threads = 16. A motherboard with four dual-core processors Correct. The number of threads is determined by multiplying the number of CPUs times the number of cores times 2 (each core can handle two threads). 4 CPUs x 2 cores x 2 threads = 16.
Yesterday you installed a new game on your computer. When you ran the computer, you noticed that the application was running very slow. After you exited the game and restarted it (the game), you received an error message saying, "Insufficient memory or disk space." You checked the hard drive, and it has more than 250GB of free space. What should you check next in Task Manager? Amount of RAM available. Amount of disk space being used by the application. Amount of processor being used. Programs that are running.
Amount of RAM available. Correct. Check the percentage of RAM being used by the game and other applications. If the percentage is too high because of another application, you can close that application and run the game.
You are reviewing new RAM to purchase for a gaming computer and find three different RAM modules that are the same except for their CL rating. The memory with which rating will work best? CL20 CL15 CL18 They will all perform at the same speed.
CL15 The lower the CAS Latency (CL), the faster the data can be retrieved from the RAM. CL is the delay time between the moment a memory controller tells the memory module to access a particular memory column on a RAM module and the moment the data from the given array is available on the module's output pins.
An organization wants to increase the amount of RAM on their computers. All the computers have four memory slots but only two slots in each computer are populated. They want to add one more memory module to the older computers, and two additional modules to the newer computers. The older computers have three blue slots and one black slot. Which memory type will maximize the number of DIMMS the memory controller can access at the same time in both, the older and newer computers? DDR4 DDR2 DDR DDR3
DDR3 Correct. DDR3 DIMMs can use quad, triple, or dual channels. Installing two additional DDR memory modules in the newer systems will allow it to operate in quad channel mode. Since the older computers have three blue slots, add the third memory module in the blue slot, and leave the black slot unpopulated. This allows the DDR3 DIMMS to use triple channels.
You are researching RAM for a computer you are building for a friend who will be using the system as a home office server for a small business. She wants the added protection so the computer will not crash due to a memory error. What type of RAM should you consider purchasing? Registered ECC Unbuffered Buffered
ECC
A company needs to upgrade their servers and workstations to support the latest 64-bit applications and deliver better performance. Which two processors will satisfy the company's requirements? Core i7 Itanium Celeron Xeon
Itanium Xeon
A computer has four DDR4 memory modules. Two modules have a speed of 3000 MHz and the other two have a speed of 4000 MHz. If the two 3000 MHz DIMMs are upgraded, the new modules to be installed should have what rating? PC4 25600 PC4 32000 PC4 24000 PC4 28800
PC4 32000 Correct. PC4 32000 corresponds to a speed of 4000 MHz (4000 x 8 = 32000). Since only the slower modules are being replaced, you will want to match the speed, type, and manufacturer of the faster modules to achieve a performance gain.
A software development firm needs to test a high-end application on a system with a family of 64-core AMD processors. Which processor will meet their needs? Athlon Pro Ryzen Threadripper Athlon with Graphics Ryzen with Graphics
Ryzen Threadripper Correct. Ryzen Threadripper is an AMD processor with 64 cores and 128 threads. (AMD)
Jenny is working on a laptop computer and notices that the computer is not running very fast. She looks and realizes that the laptop supports 8GB of RAM and that the computer is running only 4GB of RAM. Jenny would like to add four more gigabits of RAM. She opens the computer and finds that there is an open slot for RAM. She checks the other module and determines that the module has 204 pins.What module should Jenny order? SO-DIMM DDR2 SO-DIMM DDR SO-DIMM DDR3 SO-DIMM DDR4
SO-DIMM DDR3 Correct. SO-DIMM DDR3 has 204 pins. The amount of data transferred using DDR 3 per second can range from 8.5GB to 14.9GB, depending on the speed of the FSB (front-side bus).
Tomi buys a CPU from a computer store. The retail box references the amount of L1 cache in the list of features. What is it referring to? The maximum amount of memory the processor can access The memory in the CPU package, but not on the processor die The amount of memory residing directly on the processor die The memory between the CPU package and the DIMM slots
The amount of memory residing directly on the processor die Correct. L1 is the amount of memory on the processor chip (die) itself. It is faster than RAM and typically in the order of Kilobytes per core.
You are able to successfully install new DIMMs with a data path that have 72 bits in a server using a 64-bit processor. Which of the following is true regarding this scenario? It is not possible to fit a 72-bit DIMM in a 64-bit system The system will run as expected with no problems at all The system will power on but then shutdown right away The system will issue an error message and not power up
The system will run as expected with no problems at all
What three characteristics are true about SRAM and DRAM? SRAM and DRAM both need to be refreshed with the same frequency The type of memory used in a memory cache is SRAM because it is faster Both are considered volatile because they only hold data while power is on SRAM is faster than DRAM because it does not need to be refreshed DRAM is closer to the CPU than SRAM because it has a 64-bit data path
The type of memory used in a memory cache is SRAM because it is faster Both are considered volatile because they only hold data while power is on SRAM is faster than DRAM because it does not need to be refreshed
Gina is upgrading your computer with a new processor. She installs the processor into your motherboard and adds the cooling system. She powers up the computer, and it begins to boot but then shuts down. What could be the cause of this problem? Thermal compound was not used. Processor is not seated properly. Processor is not compatible. Computer is overclocked.
Thermal compound was not used. Correct. Gina forgot to add thermal compound, and the processor is overheating. Thermal compound is applied to create an air-tight seal between the processor and the heat sink. If thermal compound is not applied, the CPU will overheat, and the computer will shut down.
Joanna is researching high-end motherboards for a gaming computer with the best performance possible. Which consideration should be highest on the list? Use the highest-performing memory Use the highest-performing processor Use the processor with the most cores Use the highest-performing motherboard
Use the highest-performing processor Correct. The best performance possible is a term that cannot be measured objectively. But getting the highest-performing processor the motherboard supports is a good way to ensure one can extract the best performance the motherboard can deliver.
A system administrator boots a Windows PC using a Live Linux CD/DVD and list the files on the system. One of the files is called pagefile.sys. What is this file used for? Select all that apply. Mirrors the contents of RAM to improve performance. It is a type of cache to backup up the contents of UEFI. Used to enhance the amount of RAM in the system. Windows normally stores virtual memory in this file. Windows stores filesystem information in this file
Used to enhance the amount of RAM in the system. Windows normally stores virtual memory in this file.
