wrong

MikeMeyers  ||  ProfMesser

These are the questions and answers I answered incorrectly at the endchapter review in the Mike Meyers A+ book.



Ch 1:  Safety and Professionalism

6. You are at a customer’s workstation to install several software and hardware updates, a process that will take a while and require several reboots of the computer. What should you do about the password to the user’s account?

C. Ask the user to change her password temporarily for you to use.



Ch 2:  The Visible Computer

8. Which of the following paths would open Administrative Tools in Windows 8.1?

B. To open Administrative Tools (in Win 8.1), right-click the Start button and select Administrative Tools.



Ch 3:  CPUs

1. What do registers provide for the CPU?

B. The CPU uses registers for temporary storage of internal commands and data.


2. What function does the external data bus have in the PC?

C. The external data bus provides a channel for the flow of data and commands between the CPU and RAM.


3. What is the function of the address bus in the PC?

A. The address bus enables the CPU to communicate with the memory controller chip.


6. Into which socket would you place an Intel Core i5?

B. You’ll find Core i5 processors in several socket types, notably LGA 1150 and LGA 1151.


9. A client calls to complain that his computer starts up, but crashes when Windows starts to load. After a brief set of questions, you find out that his nephew upgraded his RAM for him over the weekend and couldn’t get the computer to work right afterward. What could be the problem?

B. Most likely, the nephew disconnected the CPU fan to get at the RAM slots and simply forgot to plug it back in.


10. Darren has installed a new CPU in a client’s computer, but nothing happens when he pushes the power button on the case. The LED on the motherboard is lit up, so he knows the system has power. What could the problem be?

B. The best answer here is that he forgot the thermal paste, though you can also make an argument for a disconnected fan.



Ch. 4:  RAM

3. What is the primary reason that DDR4 RAM is faster than DDR3 RAM?

B. The input/output speed of the DDR4 RAM is faster. [The input/output speed of the DDR4 RAM is faster than that of DDR3 RAM (although the latency is higher).]


6. Silas has an AMD-based motherboard with two sticks of DDR3 RAM installed in two of the three RAM slots, for a total of 8 GB of system memory. When he runs CPU-Z to test the system, he notices that the software claims he’s running single-channel memory. What could be the problem? (Select the best answer.)

D. He needs to move one of the installed sticks to a different slot to activate dual-channel memory. [Motherboards can be tricky and require you to install RAM in the proper slots to enable dual-channel memory access. In this case, Silas should move one of the installed sticks to a different slot to activate dual-channel memory. (And he should check the motherboard manual for the proper slots.)]


10. Cindy installs a second stick of DDR4 RAM into her Core i5 system, bringing the total system memory up to 16 GB. Within a short period of time, though, she begins experiencing Blue Screens of Death. What could the problem be?

A. She installed faulty RAM. [If you have no problems with a system and then experience problems after installing something new, chances are the something new is at fault.]



Ch. 5:  Firmware

2. What is the correct boot sequence for an older BIOS-based PC?

D. Power good, CPU, POST, boot loader, operating system. [PCPBO]


3. Jill decided to add a second hard drive to her computer.  She thinks she has it physically installed correctly, but it doesn’t show up in Windows.  Which of the following options will most likely lead Jill where she needs to go to resolve the issue?

B. Jill should reboot the computer and watch for instructions to enter the CMOS setup utility (for to example, a message may say to press the Delete key).  She should do what it says to go into CMOS setup.


5. Which of the following most accurately describes the relationship between BIOS and hardware?

A. All hardware needs BIOS.


6. After a sudden power outage, Samson’t PC rebooted, but nothing appeared on the screen.  The PC just beeps at him, over and over and over.  What’s most likely the problem?

A. The power outage toasted his RAM. [The long repeating beep and a dead PC most likely indicate a problem with RAM.]


9. Jill boots an older Pentium system that has been the cause of several user complaints at the office.  The system powers up and starts to run through POST, but then stops.  The screen displays a “CMOS configuration mismatch” error.  Of the following list, what is the most likely cause of this error?

A. The CMOS battery is likely dying.



Ch. 6:  Motherboards

5. Amanda bought a new system tat, right in the middle of an important presentation, gave her a BSOD.  Now her system won’t boot at all, not even to CMOS. After extensive troubleshooting, she determined that the motherboard was at fault and replaced it.  Now the system runs fine.  What was the most likely cause of the problem?

A. Burn-in failure. [Critical error associated with manufacturing defects.]



Ch. 7:  Power Supplies

2. What voltage does an ATX12V P1 connector provide for the motherboard?

D. 3.3, 5 and 12 volts.


8. A PC’s power supply provides DC power in what standard configuration?

B. Three primary voltage rails, one each for 12-volt, 5-volt and 3.3-volt connectors.


10. How many pins does a SATA power connector have?

D. 15.



Ch. 8:  Mass Storage Technologies

2. Which form factor connects directly to a dedicated motherboard socket?

C. M.2 SSD


3. How many PATA hard drives can you have on a system with two PATA hard drive controllers?

D. 4 [Each controller supports 2 drives]


4. How do you differentiate two PATA drives on the same cable?

B. You set jumpers on the individual drives to determine which is which.  [PATA drives use master/slave jumpers to differentiate between the two drives.]


6. What is the maximum cable length of an internal SATA device?

D. 1 meter


9. Which SATA version offers the least overhead (and thus the best performance)?

A. AHCI.  Supports magnetic SATA drives efficiently.


10. Which RAID standard requires at least four drives?

D. RAID 10 requires at least four drives.



Ch. 9:  Implementing Mass Storage

1. Which is the most complete list of file systems Windows can use?

B. FAT 32, exFAT and NTFS.


2. Which of the following correctly identifies the four possible entries in a file allocation table?

C. An end of file marker, a bad-block marker, code indicating the cluster is available, the number of cluster where the next part of the file is stored.


9. Which of the following partitioning schemes enable the creation of more than four partitions or volumes on a single hard drive? Select Two.

B. GPT

C. Dynamic disk



Ch. 10:  Essential Peripherals

1. Jason put in a recommendation that the company upgrade the SD cards used in the company smartphones from 32 GB SDHC A1 to 128 GB SDXC A2.  What does A2 signify?

D. A2 cards sustain faster IOPS than A1 cards. [A1 and A2 Application Performance Class ratings refer to the IOPS rating of the card, with A2 cards offering better performance than A1.  This matters for smartphones with multiple apps running.  SDHC and SDXC refer to the capacity of a card’s storage.]


5. What is the highest speed that Hi-Speed USB 2.0 can go?

D. 480 Mbps


8. What type of a file is a MIDI file?

D. Text


9. Which optical disc type offers the most capacity writing and rewriting data files?

C. BD-RE  ((what is diff BD-RE and BD-RW?))



Ch. 11:  Building a PC

3. Cindy’s client wants a new graphics workstation.  The client’s small business has ten current workstations connected in a Windows domain, and the client wants the new graphics workstation to be part of that domain.  What edition of Windows 10 should Cindy install on a new computer to accomplish this goal and provide the best value?

C. Windows 10 Pro.  


4. What is the most important component for building a virtualization workstation?

C. RAM.  Every virtual machine uses a large share of RAM.


8. If Windows locks up during the installation, what should you do?

D. Unplug and restart.



Ch. 12:  Windows under The Hood

2. What is the name of the command-line version of the Task Manager?

B. tasklist


3. When using Performance Monitor, which settings are defined to track resource usage? (Select Two)

B,C. To track resource usage in Performance Monitor, you need to configure Objects and Counters.



Ch. 13:  Users, Groups and Permissions

1. Which tool or mechanism defines what resources a user may access and what he or she may do with those resources?

D. Authentication through NTFS defines resources a user may access and what he or she can do with those resources.


3. How can you encrypt an entire drive, including files and folders belonging to other users?

D. BitLocker 


5. Which permission enables an administrator to change the ownership of a file without knowing the user account password for that file?

D. The Take Ownership permission enables an administrator to change the ownership of a file without knowing the user account password for that file.


6. You copy a file from a folder on a hard drive formatted as NTFS, with permissions set to Read for everyone, to a USB thumb drive formattes as FAT32.  What effective permissions does the copy of the file have?

D. None. [The key here is that you are copying from and NTFS hard drive to a FAT32 USB drive.  Copying from and NTFS-based partition to a FAT- or exFAT-based partition creates two copies of the object; the copy of the object in the new location has no effective permissions at all.]


7. Which of the following commands is used to change file permissions in Linux?

A. chmod


8. Which tool in Windows 8.1 enables you to create a new user account based on a global Microsoft account?

C. Settings charm



Ch. 14:  Maintaining and Optimizing Operating Systems

1. xxxWhich tool or mechanism defines what resources a user may access and what he or she may do with those resources?

D. xxxAuthentication through NTFS defines resources a user may access and what he or she can do with those resources.


3. How can you encrypt an entire drive, including files and folders belonging to other users?

D. BitLocker 


5. xxxWhich permission enables an administrator to change the ownership of a file without knowing the user account password for that file?

D. The Take Ownership permission enables an administrator to change the ownership of a file without knowing the user account password for that file.


6. xxxYou copy a file from a folder on a hard drive formatted as NTFS, with permissions set to Read for everyone, to a USB thumb drive formattes as FAT32.  What effective permissions does the copy of the file have?

D. None. [The key here is that you are copying from and NTFS hard drive to a FAT32 USB drive.  Copying from and NTFS-based partition to a FAT- or exFAT-based partition creates two copies of the object; the copy of the object in the new location has no effective permissions at all.]


7. xxxWhich of the following commands is used to change file permissions in Linux?

A. chmod


8. xxxWhich tool in Windows 8.1 enables you to create a new user account based on a global Microsoft account?

C. Settings charm





MikeMeyers || ProfMesser

 

These are the questions I answered incorrectly on the Professor Messer A+ Core 1 Exam.

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