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Thanks for reading!Please enjoy this sample of my 220-901 Pop Quiz Collection PDF.The complete book includes these features:700 questions, 926 pagesUnique multiple-choice formatPerformance-based questionsStudy and test tipsDigital PDF - Immediate deliveryClick here to learn more!

PROFESSOR MESSER'SCOMPTIA 220-901 A POP QUIZ COLLECTIONJ AMES "P ROFESSOR " M ESSERhttp://www.ProfessorMesser.com

Professor Messer's CompTIA 220-901 A Pop Quiz CollectionWritten by James "Professor" MesserCopyright 2016 by Messer Studios, LLChttp://www.ProfessorMesser.comAll rights reserved. No part of this book may be reproduced or transmitted in any form or by any means,electronic or mechanical, including photocopying, recording, or by any information storage and retrievalsystem, without written permission from the publisher.First Edition: May 2016Trademark AcknowledgementsAll product names and trademarks are the property of their respective owners, and are in no way associated oraffiliated with Messer Studios, LLC."Professor Messer" is a registered trademark of Messer Studios LLC."CompTIA" and "CompTIA A " are registered trademarks of CompTIA, Inc.Warning and DisclaimerThis book is designed to provide information about the CompTIA 220-901 A certification exams. However,there may be typographical and/or content errors. Therefore, this book should serve only as a general guide andnot as the ultimate source of subject information. The author shall have no liability or responsibility to anyperson or entity regarding any loss or damage incurred, or alleged to have incurred, directly or indirectly, by theinformation contained in this book.

TABLE OF CONTENTSIntroductionDomain 1.0 - HardwareQuestionsShort AnswersDetailed AnswersDomain 2.0 - NetworkingQuestionsShort AnswersDetailed AnswersDomain 3.0 - Mobile DevicesQuestionsShort AnswersDetailed AnswersDomain 4.0 - Hardware and Network TroubleshootingQuestionsShort AnswersDetailed Answers220-901 Performance Based QuestionsQuestionsAnswersBonus Section: Study and Test Tips for your CompTIA ExamAbout the Author

IntroductionThe process of answering a test question is our ultimate test of knowledge. After hours of video watching, bookreading, and note taking, do you really know the material? If you're trying to prove yourself, nothing beatsgetting the right answer.In 2009, I started an email list that would send subscribers a single CompTIA A sample exam question eachday. I had no idea if there would be an interest in this list, but my daily Pop Quiz quickly gained in popularity.Today, tens of thousands of people try to answer my daily question, and I now write hundreds of Pop Quizquestions a year.This book is a combination of my daily pop quiz questions, hundreds of new questions, and newly writtenperformance-based questions. I've personally curated every question to validate its applicability to the 220-901exam objectives, and many of the original Pop Quiz questions have been updated to make the questions andanswers as unambiguous as possible.I hope this book will help you be the smartest one in the room. Best of luck with your studies!- Professor MesserThe CompTIA A certificationCompTIA's A certification is considered to be the starting point for information technology professionals, andfor good reason. Earning the A certification requires the completion of two exams covering a broad range oftechnology topics. After completing the CompTIA A certification, an A certified professional will have anunderstanding of computer memory modules, storage systems, operating systems, security techniques, andmuch more.The current series of the A certification is based on the successful completion of the 220-901 and the 220-902exams. You must pass both exams to earn your CompTIA A certification. This book focuses solely onquestions and study materials for the 220-901 exam.THE 220-901 EXAMThe bulk of the 220-901 exam is about hardware, but that's only about a third of the overall exam content.You'll also need to know about networking, mobile devices, and how to troubleshoot all of these technologies.Here's the breakdown of each domain and the percentage of each topic on the 220-901 exam:Domain 1.0 - Hardware - 34%Domain 2.0 - Networking - 21%Domain 3.0 - Mobile Devices - 17%Domain 4.0 - Hardware and Network Troubleshooting - 28%THE 220-902 EXAMThe 220-902 exam shifts the focus to Windows operating systems, although there is a good bit of Mac OS andLinux on the exam as well. IT security is also well represented on the exam. Here's the 220-902 domainsummary:

Domain 1.0 - Windows Operating Systems - 29%Domain 2.0 - Other Operating Systems and Technologies - 12%Domain 3.0 - Security - 22%Domain 4.0 - Software Troubleshooting - 24%Domain 5.0 - Operational Procedures - 13%How to use this bookEach chapter of exam domain questions contains three sections: Questions: The first section is a list of every question for a domain. There's a link after every question thatwill jump immediately to the answer page and a detailed explanation. Short Answers: This second section is a consolidated list of the answers without any detail or explanation. Detailed Answers: The detailed answer section repeats the question, the possible answers, and shows theanswer and a detailed explanation. This section is formatted to show only one answer per page to avoid givingaway the answer to any other questions. There's a link on this page that will take you to the next question in thedomain.Given this layout, there are two ways that most people will step through the questions. One method would be toread the question, decide on an answer, and then click the link to see the correct answer and the explanation.Clicking the return link on the explanation page will move you to the next question.If you prefer testing yourself on all of the questions before checking your answers, you could read through theentire first section and record your answers separately. The quick answers section would then be an efficientway to check your results.

COMPTIA A 220-901 - DOMAIN 1.0 - HARDWARE - QUESTIONS1-1. Which of these connection types would you most commonly associate with NAS?A. EthernetB. eSATAC. USBD. FireWireE. SerialJump to Answer1-2. If you had four identical drives, which of these RAID types would provide both redundancy and the mostavailable storage space for your data?A. RAID 0B. RAID 1C. RAID 5D. RAID 1 0Jump to Answer1-3. You have just purchased a new dual-core PC, but when you look at the Windows Task Manager'sPerformance tab, you see usage statistics for four CPUs. What would be the most likely cause of this difference?A. Dual-core CPUs appear as four separate CPUs in WindowsB. The dual-core CPUs are using HTTC. The new computer uses dual-channel memoryD. Windows Task Manager is improperly configuredJump to Answer1-4. What is one of the fundamental characteristics of parity memory?A. Parity memory identifies and corrects errors on the flyB. Parity memory will retry memory transactions until zero errors are identifiedC. Parity memory can be used on any computerD. Parity memory uses an additional bit to identify errorsJump to Answer1-5. What software is responsible for starting your computer when power is applied?A. MBRB. NTLDRC. OS KernelD. BIOSJump to Answer

1-6. What type of voltages would you commonly expect to find on motherboard's power supply connector?A. 120V ACB. 12V DC, 5V DC, 3.3V DCC. 12V AC, 5V AC, 3.3V ACD. 120V DCJump to Answer1-7. Which of these interface types would you expect to find in a laptop computer?A. Mini PCIB. DIMMC. AGPD. PCI-XJump to Answer1-8. What 15-pin connector is commonly used to transmit video?A. RCAB. VGAC. DVID. HDMIJump to Answer1-9. Which of these best describes NFC?A. Requires line-of-site communicationB. Commonly connects devices in an automobileC. Operates at a range of 10 cm or lessD. Commonly used with wireless headsetsE. Uses light as a transport mechanismJump to Answer1-10. What memory type is often used as L1 cache memory?A. SRAMB. DRAMC. SDRAMD. RDRAMJump to Answer

1-11. How does a thermal printer display information on a printed page?A. The printer uses heat and pressure to "fuse" the image to the paperB. A heated print head pulls a small bubble of ink from an ink cartridgeC. A small set of pins are heated and pressed onto the pageD. Special paper is heated until it changes colorE. A set of colored ink rolls are heated until the colors transfer to the paperJump to Answer1-12. Which of these would be the best example of an output device? Pick two.A. Barcode readerB. PrinterC. Motion sensorD. SpeakerE. Smart card readerF. WebcamJump to Answer1-13. Your new motherboard comes with four SATA ports. What is the maximum number of SATA devicesthat it can support?A. Two at any time, using any of the four interfacesB. Four devicesC. Eight devicesD. The maximum number of devices will be dependent on the SATA speeds of the devicesJump to Answer1-14. Which of these features would not be commonly found in a BIOS?A. Hardware diagnosticsB. USB port disablingC. Disk partitioning optionsD. Date and time settingsJump to Answer1-15. Which of these memory types are designed to detect errors? Pick two.A. ECCB. SDRAMC. DDRD. Parity memoryJump to Answer

1-16. What type of memory is used to improve the performance of CPU instruction processing?A. CacheB. StaticC. HybridD. SDRAMJump to Answer1-17. Which of these best describes digital modulation?A. Listening to an FM radio stationB. Playing audio from computer speakersC. Using a modem for Internet connectivityD. Ringing a bellJump to Answer1-18. Which of these characteristics would be most important for a CAD/CAM workstation? Pick two.A. Powerful processorB. High-end videoC. Enhanced audioD. HDMI interfacesE. TV tunerJump to Answer1-19. You've just replaced the SATA hard drive in your desktop PC with an SSD. Which of these changesshould you expect? Pick two.A. Access to your data on the SSD should be faster than the hard driveB. The SSD should require more defragmentation than the hard driveC. The SSD should make as much noise as your hard drive when accessing dataD. The SSD should have very similar motherboard connections as the existing hard drive interfaceJump to Answer1-20. What is the purpose of a CPU cache?A. It increases the clock rate of the CPUB. Improves the overall clock speed of the FSBC. Adds an extra CPU core at each cache layerD. Holds data, instructions, or results for fast retrievalJump to Answer

1-21. Which of these security technology restricts users from making any changes to their hardwareconfiguration?A. Wireless encryptionB. Anti-spyware softwareC. BIOS securityD. BiometricsJump to Answer1-22. You have recently upgraded the CPU in one of your servers, including a heat sink and a CPU fan.Unfortunately, the temperature of the CPU is getting very hot during normal operation. Which of these is mostlikely the cause of this overheating?A. The CPU configuration in the BIOS is misconfiguredB. The CPU is not the correct type for your motherboardC. The amount of thermal paste is insufficientD. The processor is faultyJump to Answer1-23. One of your associates has told you that he's added a supervisor password to the BIOS of every computerin the organization. What does the addition of this BIOS password mean?A. You can't make changes to the BIOS configuration without the passwordB. You can't boot the computer without the passwordC. You can't add new device drivers without the passwordD. You can't shut down the computer without the passwordJump to Answer1-24. One of your customers is looking for a MIDI-to-USB interface for her new laptop computer. What is sheprobably connecting to her PC?A. A digital video cameraB. An analog audio inputC. An external monitorD. An electronic piano keyboardJump to Answer1-25. Which of these would be a best-practice for thermal printer output?A. Don't use paper clips on thermal printer outputB. Don't keep the output in large stacksC. Don't put the output near a heat sourceD. Don't store the output in a cardboard or paper folderJump to Answer

COMPTIA A 220-901 - DOMAIN 1.0 - HARDWARE - SHORTANSWERS1-1. A.1-2. C.1-3. B.1-4. D.1-5. D.1-6. B.1-7. A.1-8. B.1-9. C.1-10. A.1-11. D.1-12. B. and D.1-13. B.1-14. C.1-15. A. and D.1-16. A.1-17. C.1-18. A. and B.1-19. A.1-20. D.1-21. C.1-22. C.1-23. A.1-24. D.1-25. C.

COMPTIA A 220-901 - DOMAIN 1.0 - HARDWARE - DETAILED ANSWERS1-1. Which of these connection types would you most commonly associate with NAS?A. EthernetB. eSATAC. USBD. FireWireE. SerialAnswer: A. EthernetNAS (Network Address Storage) is accessible across the network, so one of the most common NASconnections is over Ethernet.220-901, Objective 1.11 - Device Connectors and Cableshttp://professormesser.link/220901011102Next Question

1-2. If you had four identical drives, which of these RAID types would provide both redundancy and the mostavailable storage space for your data?A. RAID 0B. RAID 1C. RAID 5D. RAID 1 0Answer: C. RAID 5RAID 0 does not provide redundancy, and RAID 1 and 1 0 are mirroring data and therefore are effectivelylimiting available storage space by 50%. RAID 5 also provides redundancy, but it only uses the space of asingle drive for the redundant parity data. With four drives, this means that RAID 5 would provide data storagethat was equal to three of the four disks, or 75% of the total disk space.220-901, Objective 1.5 - An Overview of RAIDhttp://professormesser.link/220901010701Next Question

1-3. You have just purchased a new dual-core PC, but when you look at the Windows Task Manager'sPerformance tab, you see usage statistics for four CPUs. What would be the most likely cause of this difference?A. Dual-core CPUs appear as four separate CPUs in WindowsB. The dual-core CPUs are using HTTC. The new computer uses dual-channel memoryD. Windows Task Manager is improperly configuredAnswer: B. The dual-core CPUs are using HTTHyper-Threading Technology is designed to allow a single CPU to schedule two processes at the same time,allowing the system to share the workload between both threads. If you view an HTT-enabled CPU in TaskManager, it will appear as if the computer has two or more CPUs for every physical CPU.220-901, Objective 1.6 - Understanding CPU 10701Next Question

1-4. What is one of the fundamental characteristics of parity memory?A. Parity memory identifies and corrects errors on the flyB. Parity memory will retry memory transactions until zero errors are identifiedC. Parity memory can be used on any computerD. Parity memory uses an additional bit to identify errorsAnswer: D. Parity memory uses an additional bit to identify errorsA computer that supports parity memory will take advantage of an additional bit that can be used to identifyerrors. Unlike ECC memory, parity memory can identify errors but not correct them.220-901, Objective 1.3 - Understanding PC Memoryhttp://professormesser.link/220901010302Next Question

1-5. What software is responsible for starting your computer when power is applied?A. MBRB. NTLDRC. OS KernelD. BIOSAnswer: D. BIOSYour computer's Basic Input/Output System is firmware that tells your computer how to launch your operatingsystem.220-901, Objective 1.1 - BIOS and UEFIhttp://professormesser.link/220901010101Next Question

1-6. What type of voltages would you commonly expect to find on motherboard's power supply connector?A. 120V ACB. 12V DC, 5V DC, 3.3V DCC. 12V AC, 5V AC, 3.3V ACD. 120V DCAnswer: B. 12V DC, 5V DC, 3.3V DCA computer's power supply provides the motherboard with a number of different DC voltages, usually including3.3 volts DC, 5 volts DC, and 12 volts DC.220-901, Objective 1.8 - Computer Power Next Question

1-7. Which of these interface types would you expect to find in a laptop computer?A. Mini PCIB. DIMMC. AGPD. PCI-XAnswer: A. Mini PCIThe Mini PCI interface was built specifically for smaller form factors such as laptops and tablets.220-901, Objective 1.2 - Motherboard Expansion Slots and Bus Speedshttp://professormesser.link/220901010202Next Question

1-8. What 15-pin connector is commonly used to transmit video?A. RCAB. VGAC. DVID. HDMIAnswer: B. VGAA VGA connector is a three-row 15-pin connector that is commonly used for computer video.220-901, Objective 1.11 - Display Connectors and Cableshttp://professormesser.link/220901011101Next Question

1-9. Which of these best describes NFC?A. Requires line-of-site communicationB. Commonly connects devices in an automobileC. Operates at a range of 10 cm or lessD. Commonly used with wireless headsetsE. Uses light as a transport mechanismAnswer: C. Operates at a range of 10 cm or lessNFC (Near Field Communication) is commonly used with payment systems, and it operates best at a very closerange of 10 centimeters or less.220-901, Objective 1.7 - Wireless Interface Speeds and ext Question

1-10. What memory type is often used as L1 cache memory?A. SRAMB. DRAMC. SDRAMD. RDRAMAnswer: A. SRAMStatic RAM is commonly used for L1, L2, and L3 cache memory.220-901, Objective 1.3 - An Overview of PC Memory Typeshttp://professormesser.link/220901010301Next Question

1-11. How does a thermal printer display information on a printed page?A. The printer uses heat and pressure to "fuse" the image to the paperB. A heated print head pulls a small bubble of ink from an ink cartridgeC. A small set of pins are heated and pressed onto the pageD. Special paper is heated until it changes colorE. A set of colored ink rolls are heated until the colors transfer to the paperAnswer: D. Special paper is heated until it changes colorThermal printers don't use any ink or toner because of the special paper used during the printing process. Aheating element in the print head applies a small amount of heat, and the paper changes color wherever it'sheated.220-901, Objective 1.14 - Understanding Thermal xt Question

1-12. Which of these would be the best example of an output device? Pick two.A. Barcode readerB. PrinterC. Motion sensorD. SpeakerE. Smart card readerF. WebcamAnswer: B. Printer and D. SpeakerOutput devices are printers, speakers, display devices, and any other component that gets data out of acomputer.220-901, Objective 1.12 - An Overview of PC Output t Question

1-13. Your new motherboard comes with four SATA ports. What is the maximum number of SATA devicesthat it can support?A. Two at any time, using any of the four interfacesB. Four devicesC. Eight devicesD. The maximum number of devices will be dependent on the SATA speeds of the devicesAnswer: B. Four devicesSATA connections can only support a single device per interface.220-901, Objective 1.7 - Computer Interface Speeds and ext Question

1-14. Which of these features would not be commonly found in a BIOS?A. Hardware diagnosticsB. USB port disablingC. Disk partitioning optionsD. Date and time settingsAnswer: C. Disk partitioning optionsThe BIOS does not provide any partitioning functionality. Although a BIOS will recognize a physical storagedevice, the logical setup of that storage device is the responsibility of the operating system.220-901, Objective 1.1 - BIOS and UEFIhttp://professormesser.link/220901010101Next Question

1-15. Which of these memory types are designed to detect errors? Pick two.A. ECCB. SDRAMC. DDRD. Parity memoryAnswer: A. ECC and D. Parity memoryParity memory includes an additional parity bit that helps to identify errors, but it's not designed to correct theerror. Error Correcting Code (ECC) Memory can detect and correct memory errors on the fly.220-901, Objective 1.3 - Understanding PC Memoryhttp://professormesser.link/220901010302Next Que