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Correct Answer:A graphics workstation most likely requires a plain old DIMM. SO-DIMMs are for laptops.Incorrect Answers:Graphics workstations use regular RAM, not flash or solid state memory.Even if there were no available memory slots, the user could always just remove an old stick to replace with the new one.
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Correct Answer:The technical name for a CMOS battery is a CR-2032. You can pick them up cheaply at your local Radio Shack or electronics store. When you see the message, "Date and Time Not Set," it usually always points to the CMOS forgetting what time it is because its battery has run out of juice. Get a new one and you'll be good to go!Incorrect Answers:If you incorrectly shut down your computer, you'd get a message stating something about how Windows experienced an improper shutdown and now needs to do some CHKDSK scans to make sure your files are intact.While it may be possible that your operating system isn't syncing up with the time server, we haven't even gotten to a place to view the operating system. We're still trying to get past this bootup error message.The BIOS is most likely not corrupted. This is an error message due to a failure in the CMOS battery.
CompTIA Security+ SY0-501 Exam Preparation (Latest Version) Set 3
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Correct Answer:To get the user's special hotkeys working, the tech needs to install drivers for them.Incorrect Answers:Bluetooth, ACPI, and AHCI drivers won't help.
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Correct Answer:Duplexing is the only option that will allow you to reduce the amount of paper during a print job. It allows for printing on the front and back of the page, which can cut paper consumption in half.Incorrect Answers:The orientation (portrait or landscape) will not always allow less paper usage.Collate papers only sets them in proper order in multipage jobs.Economy ink will only save your ink cost, it will not save paper.
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Correct Answer:The Check Disk utility scans a hard drive for errors and repairs any that it finds.Incorrect Answers:Defragmentation fixes what's called "file fragmentation," where individual files are stored in many different places on a drive.System Restore is used to take an OS install back to a previously-set snapshot in case of OS errors.An anti-virus scan simply scans for and removes viruses. It doesn't fix hard drive errors.
220-801 CompTIA A+ Certification Practice Exam Set 7
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Correct Answer:A personal area network, or PAN, is a small network consisting of devices like wireless headsets, cell phones, and music players.Incorrect Answers:A local area network is a small network in a home or office.Cloud refers to services or storage that are not hosted on a local system, but over the Internet.A metropolitan area network is a network that covers an entire city.
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Correct Answer:The computer's manual should show the technician what the lights mean.Incorrect Answers:A network diagram shows the layout of a network, not what a computer's indicator lights mean.Asset management is the practice of keeping track of supplies or other assets.A wiring scheme is a detailed report of the wiring standards used in a network.
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Correct Answer:802.11 b has a throughput of only 11 Mbps.Incorrect Answers:802.11 a and g have throughput of 54 Mbps.802.11 n has a throughput of up to 600 Mbps.
CompTIA JK0-018 Security+ E2C Certification Practice Exam Set 8
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Correct Answer:OLEDs are able to use LEDs that generate both light and color when supplied a current. This gives the display better perfomance, and a smaller size.Incorrect Answers:Cathode ray tube (CRT) is an older technology.Although modern, plasma screens have a smaller color gamut than OLED.LCD screen technology is also modern, however, since LCDs leak light, they do not provide as good a contrast ratio.
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Correct Answer:It's likely that the technician forgot to attach the video card to the power supply. It's amazing how easy that is to do.Incorrect Answers:Updating BIOS firmware won't help with this problem.If there's no video at all, it's not a driver issue.The general rule with video cards is that if you can plug it into the motherboard, the motherboard supports it.
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Correct Answer:To install SO-DIMM RAM chips into a laptop, you must turn the laptop off.Incorrect Answers:PCMCIA cards, Express cards, and USB hubs can all be installed while the laptop is running.
CAS-001 CompTIA Advanced Security Practitioner Practice Exam Set 6
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Correct Answer:A punch down tool presses the individual strands of wire into a patch panel.Incorrect Answers:A tone probe helps network techs find the port to which a particular Ethernet cord is attached.Loopback plugs help test a NIC.A crimper is used to attach RJ-45 plugs to an Ethernet cable.
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Correct Answer:Traditional hard drives use platters that spin and use read/write heads on actuator arms to read the top and bottom of the platters. The arms are controlled by a servo motor. All these moving metal parts can wear down over time and break. Incorrect Answers:Your system uses electronic signal and no audible sound occurs. Solid state drives do not use moving parts.The hard drive does not have spindle motor bearings.
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Correct Answer:A clicking hard drive means a dying hard drive. Get that hard drive out of the raid and replaced as quick as possible!Incorrect Answers:None of the other answers cause clicking.
JK0-016 CompTIA Network+ 2009 Edition Practice Exam Set 10
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Correct Answer:A toner probe and tone generator can trace a cable to its port.Incorrect Answers:A cable tester analyzes a cable's characteristics.A multimeter measures voltage, resistance, and current.A loopback plug tests a NIC's physical connectivity.
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Correct Answer:Currently, iOS tablets have no ability to add external storage.Incorrect Answers:There are no SD card, USB, or eSATA ports on iOS tablets.
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Correct Answer:Hyperthreading is when one CPU core tricks the operating system into thinking that there are two processors.Incorrect Answers:XD bit refers to a technology for splitting CPU memory into areas for CPU instructions and areas for data.MMU virtualization is the technology that enables virtual machines to access a computer's peripherals.64-bit architecture refers to a computer with a 64 bit wide address bus.
220-801 CompTIA A+ Certification Practice Exam Set 2
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Explanation
Correct Answer:The first thing to do in this case is to replace the problem battery with another one to see if that battery starts charging.Incorrect Answers:It's far easier and more helpful to test a new battery than to use a commercial charger.Putting a battery on an anti-static mat won't actually discharge it.Changing the power settings just delays fixing the problem.
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Correct Answer:Old laptop screens were lit by fluorescent (CCFL) lamps on the sides of the screen.Incorrect Answers:Plasma screens are lit by applying electrical charge to a plasma gas, but there hasn't ever (as far as I know) been a laptop with a plasma screen.LED and OLED screens are newer, more expensive technologies.
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Correct Answer:Thermal paste facilitates heat transfer between the CPU and the heatsink. Without thermal paste, a CPU has difficulty transferring heat across the microscopic gaps in the surface of the CPU and heatsink.Incorrect Answers:A case fan cools the entire system, not just the CPU.Liquid cooling systems require thermal paste, too.CPUs can still overheat with a CPU and no thermal paste.
CompTIA N10-004 Network+ Certification Practice Test Set 10
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Correct Answer:Liquid cooling is both powerful and quiet. Perfect for a home theater PC!Incorrect Answers:Side panel slots help with cooling, but they're definitely not a complete solution. Fans are a bad choice for a home theater environment, since they can create distracting noise.Thermal paste is necessary for cooling, but you can't cool a PC with just thermal paste.
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Correct Answer:It seems like the computer is trying to boot to the external drive instead of the system drive, so the user needs to set her boot order to prioritize the system drive above every other device.Incorrect Answers:A jumper issue would show up immediately after installing a drive, not suddenly at random.The user doesn't seem to be using the PXE to install Windows remotely, so changing the PXE settings wouldn't help.Again, a hard drive cable error would show up after installing a drive.
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Correct Answer:SFTP combines the transferring ease of FTP with security to keep your files from prying eyes.Incorrect Answers:Telnet enables you to connect to a remote computer using a text-based interface.SSH is the encryption protocol used by SFTP, but SSH itself doesn't transfer files.FTP isn't secure. At all.
220-702 CompTIA A+ Practical Application Practice Exam Set 6
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Correct Answer:The BIOS upgrade may have reset the default boot order sequence to the manufacturer's default. Since there have not been any hardware changes, the first thing to review is the updated BIOS settings for the boot sequence.Incorrect Answers:The manufacturer will not determine the boot sequence.The hard drive is being seen, so it has power. It is the operating system that is not being recognized.Hard drive jumper setting cannot be changed by a BIOS update.
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Correct Answer:Try booting into startup repair in order to repair or install video drivers.Incorrect Answers:Component Management is a made up answer.You can't get into Device Manager or Task Manager if there's nothing on the screen!
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Correct Answer:Burn in on a monitor is a permanent discoloration of areas caused by prolonged display of an image that does not move. It creates a permanent ghost like image of the object. Screen savers were a common preventative solution to burn in.Incorrect Answers:A dead backlight will not cause discoloration.ESD does not cause discoloration on the screen.Dead pixels will show small areas with no image display.EMI would only cause temporary display interference, it would not leave a discoloration.
CompTIA JK0-022 Security Cryptography Certification Exam Set 9
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Correct Answer:Cookies can be used to track your Internet browsing behavior, and, as such, can be used as spyware.Incorrect Answers:A rootkit is malware that hides itself from the usual detection methods. They're damaging and hard to find, but cookies are not rootkits.Phishing is the act of using e-mail to pretend to be a trusted authority in the hopes of obtaining sensitive information voluntarily from victims.A worm is a piece of malware that replicates through networks.
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Correct Answer:The power supply, being the part of your computer that is directly plugged into a power outlet at all times, is the most likely suspect if you get a smokey smell coming from your computer. Incorrect Answers:The CPU can potentially overheat, but modern CPUs have special circuitry designed to shut them down before they start burning. If it's not the power supply, though, it's probably the CPU.Since this is probably a power supply issue, proper ventilation of the case won't help a lot.
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Correct Answer:Clock speed is the speed at which the CPU can execute instructions. The faster the clock, the more instructions it can execute.Incorrect Answers:Hyperthreading is not used in single-threading tasks.Fan speed will not effect the CPU task performance.The number of cores will not affect the speed of a single-thread task.
SY0-401 CompTIA Security+ Certification Practice Exam Set 7
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Correct Answer:Disabling the SSID broadcast will make it so that the network doesn't show up when the neighbors look for wireless networks.Incorrect Answers:A proxy server won't help here.WEP encryption might make it difficult for neighbors to join the network, but it won't keep them from discovering it.A demilitarized zone is used as a security measure in some large networks.
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Correct Answer:Time to upgrade that power supply unit! Looks like the addition of a new drive just tilted the scale and now your PSU can't power all your devices. Get a 1000-watt PSU… you'll never worry about power again.Incorrect Answers:The fact that BOTH your DVD-RW and the BD-ROM simultaneously failed is the big clue here. The DVD-RW was probably working just fine before you put the new drive in. And the BD-ROM was brand new. The odds of having to replace that are very unlikely.Replacing the SATA controller wouldn't be the fix here. Most SATA controllers are soldered onto motherboards. How handy are you with a soldering iron?
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Correct Answer:Multi-touch - Multi-touch enables mobile devices to recognize input from more than one finger at a time.Incorrect Answers:An accelerometer helps keep track of a device's orientation in space.A Micro USB port enables mobile devices to connect to a PC.A trackball is an input device that uses a small ball to move a cursor, kind of like a mouse.
220-801 CompTIA A+ Certification Practice Exam Set 1
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Correct:The charging circuit charges the battery. Incorrect:Neither the AC inverter or the CCFL require any special charging circuit. Actually, the inverter charges the CCFL. There is no "laser" on a typical laptop.
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Correct Answers:CAD workstations need large hard drives for the complex CAD files they work with, multiple monitors to give the users more space to work, and a powerful video card to render the CAD files.Incorrect Answers:CAD workstations definitely don't need a powerful sound card, and they can certainly get by without multiple network cards, too.
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Correct Answer:3D workstations require a high-end video card to make rendering and modeling quicker.Incorrect Answers:A multi-core processor is also good, but it's slightly less important than a good video card.TV tuners and tape backup drives aren't important in a 3D workstation.
CompTIA Network+ 6 Certification Practice Exams - 2019 Set 3
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Correct Answer:Laser printers use toner to create an image on the paper.Incorrect Answers:Inkjet printers use ink.Thermal printers use a special type of heat-sensitive paper to create images.Impact printers physically strike the paper to leave a mark.
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Correct Answer:Using a USB enclosure, the user can get all of his data safely onto another computer.Incorrect Answers:You might be able to burn the data to DVD, but not until you get it off the drive using a USB enclosure.The laptop probably doesn't have a SCSI drive.Again, you can't copy the data on to anything until you get that data off the drive using a USB enclosure.
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Correct Answer:When a cable is plugged into a tone generator, it sends a tone through the cable that can be detected through a receiver called a probe. The probe can be pointed at each cable on the switch. When the probe touches the cable that is plugged into the tone generator, the tone can be heard through the probe.Incorrect Answers:An RJ-45 loopback plug is used to test the connection, not to find a cable.A punchdown tool is used to insert wire into a patch panel.A cable tester can only test a cable for electrical connection.
CAS-003 CompTIA Advanced Security Practitioner (CASP+) Exam Set 1
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Correct Answer:Most sytem BIOS setup screens have a way to change your system fan speed.
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Correct Answer:If a computer is shutting down after a few minutes of operation, that's a good sign that it's overheating. Dust out your computer or get a better heat sink.Incorrect Answers:A PC with the wrong kind of RAM wouldn't start up at all.A faulty hard drive would prevent you from booting into the OS.A bad USB hub would just make it so that USB devices didn't work.
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Correct Answer:Since the printer jobs are queuing locally, and the printer is showing ready, the failure is likely in the spooler. Incorrect Answers:The cable does not need replacing, as the laptop was able to connect properly.A test page will only confirm the printer's function; it will not allow the users to print.The technician was able to confirm that the port connects to the network properly.
CompTIA JK0-015 E2C Security+ Certification Practice Test Set 17
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Correct Answer:Looks like you want to turn on MAC filtering and set yourself up a whitelist. Now only the machines YOU decide on get to connect to the network.Incorrect Answers:Port forwarding forwards packets to a specific IP address based on a specific port that you configure. This is used for practically any application that needs to connect directly with other users on the Internet.Wi-Fi Protected Setup (WPS) is a wireless computing standard that enables a user to simply press a button on a wireless device so that it can easily join a WPS enabled Wi-Fi network. This standard is frequently used with Wi-Fi printers.A Demilitarized Zone (DMZ) is a feature that can be enabled routers. Think of what is happening for port fowarding and then apply that knowledge to all 65,536 ports on the Internet. Feeling vulnerable yet? You should.
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Correct Answer:You'll need to install drivers so that the computer can communicate with the printer.
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Correct Answer:Wireless antennas are typically installed in laptops' screen bezels, since this results in the best possible reception.Incorrect Answers:Putting the antenna anywhere else in a laptop would result in worse performance.
CV0-001 CompTIA Cloud+ Certification Practice Exam Set 7
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Correct Answer:802.11 a only operates on the 5 GHz range, giving it a speed of 54 Mbps and a range of around 50 feet.Incorrect Answers:802.11 b and g operate on the 2.4 GHz band.802.11 n can operate either on the 2.4 or 5 GHz band.
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Correct Answer:Sticky keys makes it so that a user doesn't have to press more than one key at a time in order to do keyboard shortcuts.Incorrect Answers:Pointer trails make it easier to track the movement of the mouse pointer across the screen.The magnifier feature enables users with visual impairments to more effectively use a computer.The Character Map is a huge list of all the special characters that your system is capable of displaying.
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Correct Answer:Laptops sometimes hide the second RAM slot under the keyboard.Incorrect Answers:The other locations usually do not hide a RAM slot
Mock : CompTIA CySA+ (CS0-001)
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Correct Answer:If the user accidentally presses the wireless function key, it will turn his wireless NIC off, preventing him from getting Internet connectivity.Incorrect Answers:The screen lock key doesn't exist.The volume function keys control how loud the speakers or headphones are.The Bluetooth function key toggles Bluetooth on and off.
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Correct Answer:A toner probe is used with a tone generator to determine which cable is plugged into which port.Incorrect Answers:A cable certifier is used to certify that a cable run meets the specifications that it is supposed to.A punch down tool is used to attach cables into a patch panel.A cable tester tests cables for continuity and resistance, making sure that there aren't any broken wires.
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Correct Answer:62.10.1.1 is the only public IP address listed. It's a Class A address.Incorrect Answers:10.0.0.1 is a Class A private address.172.16.0.1 is a Class B private address.192.168.1.1 is a Class C private address. You see this often as the default IP address for SOHO routers.
CompTIA JK0-015 E2C Security+ Certification Practice Test Set 6
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Correct Answers:Start by checking both the power supply and RAM, as those are the two components most likely to cause random reboots when they begin to fail.Incorrect Answers:A dead CMOS battery just results in the CMOS settings being reset to their default values after every restart.A dying video card usually results in video corruption.A failing optical drive simply won't read optical discs, or will refuse to open.
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Correct Answer:Motherboard manufacturers use different layout rules for the sockets. It is best to always review the motherboard manual for specifics on how to install devices.Incorrect Answers:Manufacturers have different standards for their socket color, you cannot count on the socket color to indicate which slot should be used first.Some motherboards do require all sockets be filled, but without the motherboard documentation, you will not know if it is required.The socket nomenclature does not always indicate which slot is used first, or if the ram needs to be paired.
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Correct Answer:DDR3 RAM will only fit into PCs designed to accept it. You can't install DDR3 RAM into a DDR2 slot.Incorrect Answers:The other answers don't describe the process of upgrading laptop RAM.
CompTIA JK0-015 E2C Security+ Certification Practice Test Set 18
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Correct Answer:CAD and 3D modelling require a high-end, multi-core CPU, a beefy graphics card, and as much RAM as you can fit into the motherboard.Incorrect Answers:The other answers won't help you much for a CAD computer.
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Correct Answer:Just like a mouse or keyboard, a touchscreen monitor requires a USB connection in order to accept input.Incorrect Answers:SCSI was a hard drive connector.Ethernet is for networks, silly.Parallel connections are primarily used for hooking up printers after travelling ten years into the past.