week 2-11.pdf - 1 of 7 https/cdn.testout.com/client-v-571/startlabsim.html Exam Report 3.14.3 Practice Questions Date 8:23:04 pm Time Spent 0:23

week 2-11.pdf - 1 of 7...

  • No School
  • AA 1
  • 7

This preview shows page 1 out of 7 pages.

Unformatted text preview: 1 of 7 Exam Report: 3.14.3 Practice Questions Date: 9/11/2019 8:23:04 pm Time Spent: 0:23 Candidate: Howie, Peter Login: peter27 Overall Performance Your Score: 0% Passing Score: 80% View results by: Objective Analysis Individual Responses Individual Responses Question 1: Incorrect Which of the following processor features used is MOST likely to dynamically reduce power consumption based on current operating conditions? Caching Throttling Hyper-threading Overclocking Multi-core Explanation Throttling modifies the operating characteristics of a processor based on current conditions. Overclocking is a feature offered on special motherboards that causes the processor to operate at a higher speed. A multi-core processor has multiple processor cores integrated into a single processor package. Hyper-threading is a feature of some Intel processors that allows the CPU to process threads in parallel. Caching, when used to describe processors, is a temporary storage area for data that is waiting for the processor. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_01] Question 2: Incorrect You have a system that has been overheating. Which of the following actions will NOT help to keep the system cool? Adding thermal paste or a thermal pad between the CPU and the heat sink. Cleaning off the inside of the computer case. Installing a water cooling system. Removing the case side panel. Installing heat spreaders and heat sinks on internal components. 9/11/2019, 8:23 PM 2 of 7 Explanation Removing the case side panel will not keep a system from overheating. The system case is specially designed to maximize air flow across system components. By removing the side panel, you modify the air flow path and reduce its effectiveness. In addition, removing the side panel allows more dust to accumulate. Dust acts as an insulator and traps heat close to components. Cleaning off the inside of the computer case, installing heat spreaders and heat sinks on internal components, installing a water cooling system, and adding thermal paste or a thermal pad between the CPU and the heat sink are all good ways to help keep a system cool. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_02] Question 3: Incorrect What is the correct order for installing a processor for proper cooling? Heat sink, CPU, thermal paste, fan Thermal paste, CPU, heat sink, fan CPU, thermal paste, heat sink, fan CPU, heat sink, thermal paste, fan Explanation The following is the correct order for applying devices to cool a processor: • • • • CPU Thermal paste Heat sink Fan References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_03] Question 4: Incorrect Which of the following thermal solutions might you find on memory modules? Active heat sink Passive heat sink Surface area dissipation Liquid cooling Explanation Memory modules use passive heat sinks (also called heat spreaders). They do not have a fan because they rely on increased surface area and passive air movement to cool them. Surface area dissipation is a generic term for cooling used by both active and passive cooling systems. Active heat sinks are used by components that generate more heat, such as CPUs, high-end video cards, and some motherboard chipsets with integrated graphics. Liquid cooling systems are used when air cooling is not sufficient. Liquid-based cooling systems are composed of tubes, cooling plates, a reservoir, and a radiator; they are primarily used for high-end gaming computers and high-performance systems. 9/11/2019, 8:23 PM 3 of 7 References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_04] Question 5: Incorrect Match the cooling system types on the left with the appropriate characteristics and uses on the right. Each cooling system type can be used once, more than once, or not at all. Used for cooling high-end video cards Active heat sink Used for cooling high-end gaming computers Liquid cooling Has a fan attached to the heat sink Active heat sink Used for cooling CPUs Active heat sink Exhausts hot air out of the back of the case Power supply Used for cooling memory modules Passive heat sink Used for cooling high-performance systems Liquid cooling Has no fan attached to the heat sink Passive heat sink Explanation Active heat sinks have an attached fan that helps cool off the component at a faster rate. Active heat sinks are used with the following components: • CPUs • High-end video cards Passive heat sinks do not have a fan and instead rely on increased surface area and passive air movement to cool the component. Passive heat sinks are used with the following components: • Low-end video cards • Memory modules ATX power supplies aid in cooling by exhausting hot air out the back of the case. Liquid cooling systems are used when air cooling is not sufficient. Because liquid cooling can dissipate heat much faster than air cooling, it is primarily used for high-end gaming computers and highperformance systems. Case fans create a pressurized system that allows air to flow through the case in a specific way. 9/11/2019, 8:23 PM 4 of 7 References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_05] Question 6: Incorrect Which of the following accurately describes case fans? (Select TWO). To reduce dust and debris, they should all exhaust hot air. Pull cool air from the front and blow hot air out the back. Do not have a specific design for moving air. Create a pressurized system inside the case. Only necessary on high-end gaming systems. Explanation Case fans create a pressurized system that allows air to flow through the case in a specific way. • Intake fans (at the front) pull air inside the case to cool components. • Outtake fans (at the back and top) exhaust warm air from inside the case. Because all computers generate heat, case fans are necessary on even basic computers to properly dissipate heat and prevent overheating issues. Even though intake case fans will pull in dust and debris, having all the case fans exhaust air would be extremely inefficient and could cause overheating issues. Case fan filters can be installed if dust and debris is an issue. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_06] Question 7: Incorrect Which of the following will ensure optimal system cooling? (Select THREE). Stack hard drives next to each other. Remove unused expansion slot covers to increase air flow. Bundle cables together and secure unused cables to the case. Leave space between the case and any walls or obstructions. Remove the side panel on the case. Keep the ambient temperature below 80° F. Explanation Consider the following recommendations to ensure optimal system cooling: • Keep the case free of dust and debris. Excess dust can restrict airflow and prevent proper heat transfer. • Reduce the number of airflow obstructions. 9/11/2019, 8:23 PM 5 of 7 • Employ proper cable management (bundle cables together and secure unused cables to the case). • Space out multiple hard disk drives instead of stacking them next to each other. • Maintain appropriate ambient temperatures. Optimal ambient temperatures are between 60 and 80 degrees Fahrenheit. • Ensure proper ventilation; leave space between the computer and any walls or desks. • Preserve negative pressure inside the case by keeping all covers and shields installed (unused expansion cards, I/O shield, front drive bays). References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_07] Question 8: Incorrect Which of the following characteristics accurately describe passive heat sinks? Used by liquid-based cooling systems More reliable than active heat sinks Used on high-end video cards More efficient than active heat sinks Explanation Passive heat sinks do not have a fan and instead rely on increased surface area and passive air movement to cool the component. Because they do not use a fan, passive heat sinks are 100% reliable. Passive heat sinks are used with the following components: • Most motherboard chipsets • Low-end video cards • Memory modules (heat sinks on memory modules are also called heat spreaders) Active heat sinks use a fan and are able to cool components much faster and more efficiently than passive heat sinks. Liquid-based cooling systems use cooling plates and thermal liquid to dissipate heat from components. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_08] Question 9: Incorrect You have just finished upgrading the CPU in your desktop system. After running the system for about 10 minutes, the system locks up and automatically restarts. Which of the following is the BEST first step in troubleshooting the problem? (Select TWO). Check the power supply voltage switch. Remove any unneeded components and run the system. Replace the power supply. Make sure the heat sink is properly mounted and has thermal paste. 9/11/2019, 8:23 PM 6 of 7 Check the CPU fan power. Explanation System lockups and restarts can be caused by several problems, including an overheated processor. Because the CPU has just been replaced, this is the most likely cause of the problem. First, you should make sure the CPU fan is running. After that, you should check if the heat sink is properly mounted and has thermal paste between it and the CPU. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_09] Question 10: Incorrect Where should the thermal paste go when installing a processor? Between the CPU and fan Between the heat sink and CPU Between the motherboard and CPU Between the heat sink and fan Explanation Thermal paste or a thermal pad is found between the heat sink and the CPU. The thermal paste helps to make a good contact between the CPU and the heat sink so that heat can move between the two. Processors require some form of heat dissipation system to function properly. Without a heat dissipation system, a processor will overheat and burn out in less than a minute. Most modern CPUs require a heat sink and a fan. References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_10] Question 11: Incorrect A computer was brought into your help desk center for repair. You have been told that it randomly locks up. Which of the following is MOST likely causing this issue? Failing network adapter Overheated processor Loose monitor cable Faulty mouse or keyboard Explanation An overheated processor is the most likely cause of random system lockups. A loose monitor cable will only affect the display and cause the image to cut out or distort. A faulty mouse or keyboard only causes problems with user input. A failing network adapter will cause networking issues, such as internet connection loss, but the system will still be able to run. 9/11/2019, 8:23 PM 7 of 7 References TestOut PC Pro - 3.14 Cooling [e_cool_pp6.exam.xml Q_COOLING_11] 9/11/2019, 8:23 PM ...
View Full Document

  • Fall '19
  • Computer cooling, heat sink, Computer hardware cooling

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes