ITSP135 m02 chapter3 review
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?
1 A motherboard with four dual-core processors 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. 2 A system board with two quad-core processors 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.
What three characteristics are true about SRAM and DRAM?
1 Both are considered volatile because they only hold data while power is on Once power is removed from SRAM and DRAM the information stored is lost. 2 SRAM is faster than DRAM because it does not need to be refreshed SRAM does not need additional clock cycles to refresh the data. DRAM, or dynamic RAM, is the most common type of RAM and loses its data rapidly, so the memory controller must refresh it several thousand times a second. 3., The type of memory used in a memory cache is SRAM because it is faster The type of memory used in cache memory is SRAM; it is faster than DRAM.
Which of the following two statements are true regarding DRAM?
1 DIMM is a type of DRAM used in modern motherboards DIMM is the type of DRAM used in modern motherboards. 2 SO-DIMM is a type of DRAM used in modern laptop motherboards SO-DIMM is the type of DRAM used in modern laptop motherboards.
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.
1 Windows normally stores virtual memory in this file. Pagefile.sys is a hidden file in the C: drive. It stores data from RAM that is not accessed frequently. The goal is to free up memory in RAM for additional data that is frequently accessed. 2 Used to enhance the amount of RAM in the system. Pagefile.sys is a hidden file in the C: drive. It stores data from RAM that is not accessed frequently. The goal is to free up memory in RAM for additional data that is frequently accessed.
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? 4 8(X) Incorrect. The system can accommodate four processors. Each processor has four cores. Each core, using multithreading, can handle two threads so each CPU appears to have eight logical processors. Thus, the total number of logical processors is 32 (4 CPUs x 4 Cores per CPU x 2 threads per core). 16 32
32
Multithreaded processors have extra registers, or holding areas, to store multiple threads for processing. Intel calls this technology Hyper-Threading and AMD calls it HyperTransport.
64-bit All DIMMs have a 64-bit data path.
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? 1Amount of RAM available. 2Amount of processor being used. 3Amount of disk space being used by the application.(X) Incorrect. The amount of disk space being used will not affect the amount of available disk space. The hard drive can be used for virtual memory, which might cause a disk space error, but you checked the hard drive and found that 250GB are still available. 4Programs 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.
What is the most likely result of a correctly installed processor, but an incorrectly installed cooler?
Boot process begins, but the system suddenly turns off after a short period If the system comes up and begins the boot process but suddenly turns off, most likely the processor is overheating because the cooler is not installed correctly.
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?
CL15 The lower the CAS Latency (CL), the faster the data can be retrieved from the RAM. CL is important on a gaming computer. Any type of lag (time you wait for a response) could cause you to lose a game.
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?
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?
ECC Correct. ECC compares bits written to the module to what is later read from the module and detects and corrects errors in a single bit but only detects errors within 2 bits.
A help desk technician is reading the manual for the motherboard in a server to ensure the right type of memory is installed during an upgrade. The documentation says it provides additional reliability because it is capable of correcting single bit errors. What technology do the memory modules use?
ECC ECC, or error-correcting code, is an error checking technology used in DIMMs for servers to ensure extreme reliability by detecting and correcting single bit errors.
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? Itanium Celeron Xeon Correct. The Xeon processor is a 64-bit processor designed for use in servers and workstations. It requires a 64-bit operating system and can handle 32-bit applications by simulating 32-bit processing. Core i7 Incorrect. Core i7 processors are hybrid processors. A hybrid processor, also known as an x86-64 bit processor, supports both 32-bit and 64-bit operating systems.
Itanium Correct. The Itanium processor is a 64-bit processor designed for use in servers and workstations. xeon Correct. The Xeon processor is a 64-bit processor designed for use in servers and workstations. It requires a 64-bit operating system and can handle 32-bit applications by simulating 32-bit processing.
What type of processor memory is located on the processor chip (processor die)?
Level 1 cache Correct. Level 1 cache, or L1 cache, is the memory on the processor chip (called a die).
A processor housing that contains more than one processor is referred to as what term? Multithreaded processor(X) Incorrect. Multithreaded processors have extra registers or holding areas to store multiple threads for processing. Multicore processor Multiprocessor platform Multihoused processor
Multicore processor
What is the general name of the processor feature that AMD calls HyperTransport?
Multithreading Multithreaded processors have extra registers, or holding areas, to store multiple threads for processing. Intel calls this technology Hyper-Threading and AMD calls it HyperTransport.
A customer takes a computer to a repair shop because the system did not boot successfully after adding a memory module to help increase performance. What is likely to be the problem?
One memory stick in unbuffered, the other is registered
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 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.
An entrepreneur wants to design and produce memory modules that meet industry specifications. To increase memory performance in servers the module should use technology to hold and amplify the signal just before the data is written to the module. What technology should the memory modules include?
Registers Registers and buffers hold data and amplify a signal just before the data is written to the module.
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?
Ryzen Threadripper 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 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 amount of memory residing directly on the processor die
When selecting a processor to match system needs, what features should you NOT consider?
The latest and most powerful processor available because the performance benefit will far outweigh the cost
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?
The system will run as expected with no problems at all Error correction code (ECC) memory has a data path that is 72 bits. Installing ECC memory on a motherboard that supports it will allow the system to power up and run as expected with no problems.
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. 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 processor 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.
After installing the processor and reassembling the computer, the system begins the boot process and suddenly turns off before completing the boot. You turn everything off, unplug the power cord, press the power button to drain the power, and open the case. What should you do next? Verify the processor is securely seated and connected Verify the cooler is securely seated and connected Rotate the processor clockwise 90 degrees in the socket Remove the old power supply and install a new one(X) Incorrect. Replacing the power supply will not resolve the issue. You should replace the power supply only when you have a power supply issue.
Verify the cooler is securely seated and connected If the cooler is not installed correctly, the system will boot but shut down before the process is complete as the processor is overheating.
Malai has a desktop computer at home that among other apps, is also running an older 32-bit video game. What type of processor does the computer most likely have?
x86-64 Correct. x86-64 processors are hybrid processors. When a 64-bit operating system is installed, the system is capable of running both, 32-bit and 64-bit applications.
Multithreaded processor Incorrect. Multithreaded processors have extra registers or holding areas to store multiple threads for processing. Multicore processor Multiprocessor platform Multihoused processor
x86-64 Correct. x86-64 processors are hybrid processors. When a 64-bit operating system is installed, the system is capable of running both, 32-bit and 64-bit applications.
