CompTIA A+ Certification 220-901: Practice Tests

Having purchased a 4 GB SO-DIMM to install in his graphics workstation, a client finds himself unable to install the RAM. What is the most likely explanation for this?

Options are :

  • The workstation has no available memory slots
  • The memory is incompatible for the workstation (Correct)
  • Graphic workstations require solid state memory
  • Graphic workstations require flash memory

Answer : The memory is incompatible for the workstation

Explanation 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.

You turn on your computer and you get a "Date and Time Not Set" message on the screen immediately after the manufacturer's logo. What is the most likely cause of this message?

Options are :

  • The computer was incorrectly shut down
  • The CR-2032 battery needs to be replaced (Correct)
  • The system BIOS is corrupted
  • The OS has stopped sync'ing with the time server

Answer : The CR-2032 battery needs to be replaced

Explanation 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.

JK0-015 CompTIA E2C Security+ 2008 Edition Practice Exam Set 4

A user reports that the Web browser shortcut key on his laptop's keyboard isn't working. What would a technician do to resolve the problem?

Options are :

  • Installing ACPI drivers from a manufacturer's Web site
  • Installing AHCI drivers from a manufacturer's Web site
  • Installing Bluetooth drivers from a manufacturer's Web site
  • Installing hotkey drivers from a manufacturer's Web site (Correct)

Answer : Installing hotkey drivers from a manufacturer's Web site

Explanation 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.

A company is working on making the office more environmentally friendly, and would like to reduce the amount of paper consumed on a multi-function printer. What setting can be utilized to achieve this outcome?

Options are :

  • Duplex (Correct)
  • Orientation
  • Economy ink
  • Collate

Answer : Duplex

Explanation 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.

Which of the following should be regularly scheduled to fix hard drive errors?

Options are :

  • Defragmentation
  • Check Disk (Correct)
  • Anti-virus scan
  • System Restore

Answer : Check Disk

Explanation 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.

CompTIA Network+ 6 Certification Practice Exams - 2019 Set 9

What type of network is centered around an individual?

Options are :

  • Cloud
  • PAN (Correct)
  • MAN
  • LAN

Answer : PAN

Explanation 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.

A user's computer will not boot. A technician notices four indicator lights on the backside of the computer. Two of the lights are green and two are amber. Which of the following documentation should the technician read to determine what the lights are indicating?

Options are :

  • Network diagram
  • Asset management
  • Wiring scheme
  • Computer manual (Correct)

Answer : Computer manual

Explanation 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.

What 802.11 wireless standard has the lowest throughput?

Options are :

  • G
  • N
  • A
  • B (Correct)

Answer : B

Explanation 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.

BR0-001 CompTIA Bridge Security+ Certification Practice Exam Set 4

Which of the following displays would provide the BEST range of visible colors?

Options are :

  • LCD
  • CRT
  • OLED (Correct)
  • Plasma

Answer : OLED

Explanation 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.

A technician recently installed a new video card in a PC that has integrated video on its motherboard. When the technician turns on the PC, there is no video. Which of the following is most likely the cause?

Options are :

  • The power connector for the video card is unplugged (Correct)
  • The incorrect video card drivers are installed
  • The motherboard BIOS version is out of date
  • The video card is unsupported by the motherboard

Answer : The power connector for the video card is unplugged

Explanation 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.

Which of the following components must be installed while a laptop is completely powered off?

Options are :

  • SO-DIMM chip (Correct)
  • Express card 54 device
  • PCMCIA device
  • USB expansion hub

Answer : SO-DIMM chip

Explanation 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.

CompTIA Network+ 6 Certification Practice Exams - 2019 Set 13

Which of the following tools would be used to connect CAT5e cabling to a patch panel?

Options are :

  • Crimper
  • Punch down (Correct)
  • Loopback plugs
  • Tone probe

Answer : Punch down

Explanation 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.

A user describes a loud clicking noise coming from their system, and are unable to boot their computer to the operating system. The technician determines the loud clicking noise to be from the hard drive. What is MOST likely creating the noise?

Options are :

  • The motion of the read/write head armature parallel to the platter. (Correct)
  • Bad spindle motor bearings.
  • Solid state read/write head scratching the platter surface.
  • Your system attempting to connect to the drive.

Answer : The motion of the read/write head armature parallel to the platter.

Explanation 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.

When walking past a server with a RAID 5 array, a technician hears a loud clicking noise. Which of the following could most likely occur?

Options are :

  • RAID array failure
  • Hard drive failure (Correct)
  • OS not found on boot
  • BSOD

Answer : Hard drive failure

Explanation 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.

FC0-U41 CompTIA Strata IT Fundamentals Practice Exam Set 7

What would a technician use to trace a cable back to its port in a patch panel?

Options are :

  • Toner probe (Correct)
  • Cable tester
  • Loopback plug
  • Multimeter

Answer : Toner probe

Explanation 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.

An iOS tablet user needs more storage. What external storage devices are available in this case?

Options are :

  • SD Card
  • Nothing (Correct)
  • eSATA drive
  • Thumb drive

Answer : Nothing

Explanation 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.

What is it called when logical cores appear as real physical cores to an operating system?

Options are :

  • 64-bit architecture
  • Hyperthreading (Correct)
  • MMU virtualization
  • XD bit

Answer : Hyperthreading

Explanation 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.

N10-006 CompTIA Network+ Certification Practice Test Set 4

The technician is dispatched to look at a user's laptop. The user reports the system shuts down after 30 minutes of field use. The technician notices the battery is not fully charging. Which of the following should the technician perform to resolve this?

Options are :

  • Remove the battery and connect it to a commercial battery charger
  • Replace the battery (Correct)
  • Change the power setting on the laptop to use less power
  • Discharge the battery using a static mat

Answer : Replace the battery

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.

Older laptop screens are backlit by which of the following technologies?

Options are :

  • OLED
  • A CCFL lamp (Correct)
  • A gas
  • LEDs

Answer : A CCFL lamp

Explanation 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.

Which of the following is the very first layer in transferring heat away from the CPU?

Options are :

  • Liquid cooling
  • Case fan
  • Heatsink
  • Thermal paste (Correct)

Answer : Thermal paste

Explanation 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 JK0-015 E2C Security+ Certification Practice Test Set 6

Danerys needs high-powered but perfectly quiet cooling for a HTPC she's building. What's her best option?

Options are :

  • Thermal paste
  • Additional fans
  • Side panel slots
  • Liquid based (Correct)

Answer : Liquid based

Explanation 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.

A user states that when she power on her computer, she receives a "Non-bootable drive" error. The user works with external storage devices to transport data to her computer. The user stated that the computer worked fine the day before. Which of the following should be checked first to resolve this issue?

Options are :

  • Jumper settings
  • PXE boot settings
  • Hard drive cable
  • Device boot order (Correct)

Answer : Device boot order

Explanation 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.

If you want to securely transfer a large file, what is the best protocol to use?

Options are :

  • SFTP (Correct)
  • SSH
  • Telnet
  • FTP

Answer : SFTP

Explanation 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.

SY0-401 CompTIA Security+ Certification Practice Exam Set 9

After upgrading a motherboard BIOS of a computer running multiple hard drives, the system will no longer boot to the operating system. Upon boot, it displays "Operating system not found". Which of the following is the FIRST thing the technician should review?

Options are :

  • Check the hard drive manufacturer in the BIOS.
  • The hard drive jumper settings.
  • The motherboard power connection on the hard drive.
  • Review the boot sequence settings in the BIOS. (Correct)

Answer : Review the boot sequence settings in the BIOS.

Explanation 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.

After an installation of a video adapter, the screen on a Windows 7 system doesn't display anything after POST. Which of the following Windows 7 functions will resolve this?

Options are :

  • Startup Repair (Correct)
  • Device Manager
  • Component Management
  • Task Manager

Answer : Startup Repair

Explanation 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!

A user complains of a discoloration of the screen on their monitor after leaving their system on during vacation. This is an example of:

Options are :

  • burn in (Correct)
  • ESD
  • EMI
  • dead pixels
  • dead backlight

Answer : burn in

Explanation 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

An Internet browser's cookie could be classified as which of the following?

Options are :

  • Rootkit
  • Worm
  • Spyware (Correct)
  • Phishing

Answer : Spyware

Explanation 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.

A technician has been dispatched to a customer site to diagnose an issue where the computer turns off intermittently. Upon arriving at the site, the technician detects a smoke smell coming from the computer. Which of the following is the best solution?

Options are :

  • Power down the system and replace the power supply (Correct)
  • Remove the side panel for proper ventilation
  • Install an additional case fan for proper ventilation
  • Power down the system and replace the CPU

Answer : Power down the system and replace the power supply

Explanation 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.

Which of the following CPU characteristics is the MOST important for performing single-threading tasks, as quickly as possible?

Options are :

  • Number of cores
  • Fan speed
  • Hyperthreading
  • Clock speed (Correct)

Answer : Clock speed

Explanation 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.

N10-006 CompTIA Network+ Certification Practice Test Set 8

Joanna is setting up a SOHO wireless network and doesn't want her neighbors to be able to discover the network. How can she make this happen?

Options are :

  • Configure a proxy server address
  • Disable SSID broadcast (Correct)
  • Enable WEP encryption
  • Configure DMZ settings

Answer : Disable SSID broadcast

Explanation 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.

You recently told your friend about how amazing Blu-Ray is, so they decided to install a BD-ROM in their PC. After installation, they call you because now their existing DVD-RW and the new drive aren't working. What should you tell them they need to replace?

Options are :

  • BD-ROM
  • SATA controller
  • Power supply (Correct)
  • DVD-RW

Answer : Power supply

Explanation 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?

Which of the following allows a user to pinch zoom on an Android device?

Options are :

  • Accelerometer
  • A trackball
  • Multi-touch (Correct)
  • Micro USB port

Answer : Multi-touch

Explanation 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.

JK0-015 CompTIA E2C Security+ 2008 Edition Practice Exam Set 10

What is the function of the charging circuit on a laptop?

Options are :

  • Charges the AC inverter
  • Charges the battery (Correct)
  • Charges the CCFLs
  • Charges the laser

Answer : Charges the battery

Explanation 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.

What are the most important features when shopping for a CAD workstation? (Select three.)

Options are :

  • Multiple large HD monitors (Correct)
  • Powerful sound card
  • Powerful video card (Correct)
  • Multiple network cards
  • Large drive space allocation (Correct)

Answer : Multiple large HD monitors Powerful video card Large drive space allocation

Explanation 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.

Which of the following components is the most important in a workstation used for 3D graphics work?

Options are :

  • Multi-core processor
  • Specialized video card (Correct)
  • Tape backup drive
  • TV tuner/recorder

Answer : Specialized video card

Explanation 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.

SY0-401 CompTIA Security+ Certification Practice Exam Set 9

In which of the following printers would you have to replace toner as part of printer maintenance?

Options are :

  • Impact
  • Thermal
  • Inkjet
  • Laser (Correct)

Answer : Laser

Explanation 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.

A user's laptop has died but the hard drive is still functioning. Which of the following is the best way for the user to still access and edit all of his data?

Options are :

  • Copy their data to a USB flash drive
  • Burn their data to DVDs
  • USB hard drive enclosure (Correct)
  • Use a SCSI to USB adapter

Answer : USB hard drive enclosure

Explanation 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.

An older network needs to labeled to show where each network connection terminates in a patch panel. Which of the following tools would be BEST for the technician to identify the connections?

Options are :

  • Tone generator and probe (Correct)
  • RJ-45 loopback plug
  • Cable tester
  • Punchdown tool

Answer : Tone generator and probe

Explanation 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.

JK0-017 CompTIA E2C Project+ Certification Practice Exam Set 6

Where can you change the speed of your system fans?

Options are :

  • Device manager
  • BIOS (Correct)
  • Power options
  • Action center

Answer : BIOS

Explanation Correct Answer:Most sytem BIOS setup screens have a way to change your system fan speed.

A computer starts up and runs for less than a minute before shutting down or locking up. This is a symptom of:

Options are :

  • A faulty hard drive
  • A bad internal USB hub
  • Incompatible RAM
  • Overheating (Correct)

Answer : Overheating

Explanation 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.

A network printer is not printing for any of the users, and the jobs sent are showing in the queus of the local machines. The printer has paper in the trays and the toner cartridge is full. The printer display shows ready on the LCD display. A technician has been able to connect with a laptop to test the network port, and is able to connect. Which of the following should the technician do to get the printer functioning again?

Options are :

  • Review that the server's print spooler service is running properly. (Correct)
  • Move the printer to a different port, and connect to the network.
  • Replace the network cable to the printer.
  • Try to print a test page with the laptop connected to the printer directly.

Answer : Review that the server's print spooler service is running properly.

Explanation 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.

BR0-003 CompTIA A+ 2009 Edition Bridge Practice Exam Set 2

You are configuring a new wireless router for a SOHO network and you want to ensure that only specific client machines can connect. What should you use?

Options are :

  • DMZ
  • MAC filtering (Correct)
  • Port forwarding
  • WPS

Answer : MAC filtering

Explanation 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.

When installing a new point of sale printer, which of the following will you most likely need?

Options are :

  • Drivers (Correct)
  • RJ-11
  • RG-58
  • Operating system disk

Answer : Drivers

Explanation Correct Answer:You'll need to install drivers so that the computer can communicate with the printer.

Where is a laptop's wireless antenna typically located?

Options are :

  • Rear panel
  • Keyboard
  • Display bezel (Correct)
  • Bottom bezel

Answer : Display bezel

Explanation 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.

SY0-401 CompTIA Security+ Certification Practice Exam Set 6

Which of these wireless standards is limited to the 5 GHz range?

Options are :

  • 802.11b
  • 802.11g
  • 802.11a (Correct)
  • 802.11n

Answer : 802.11a

Explanation 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.

Which of the following features can be configured with keyboards to assist users with disabilities?

Options are :

  • Pointer trails
  • Character Map
  • Magnifier
  • Sticky keys (Correct)

Answer : Sticky keys

Explanation 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.

A technician, trying to upgrade the RAM in a laptop, opens the bottom of the case to discover that there is only one RAM slot when there are supposed to be two. Where might the other slot be?

Options are :

  • Above the PC card slot
  • Inside the display bezel
  • Second hard drive bay
  • Under the keyboard (Correct)

Answer : Under the keyboard

Explanation Correct Answer:Laptops sometimes hide the second RAM slot under the keyboard.Incorrect Answers:The other locations usually do not hide a RAM slot

CompTIA A+ 220 901

On a laptop, which function key might keep a user from accessing the Internet?

Options are :

  • Bluetooth
  • Screen lock
  • Wireless (Correct)
  • Volume

Answer : Wireless

Explanation 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.

Which of the following is the best tool to verify the cable is plugged into the correct port on the patch panel?

Options are :

  • Cable certifier
  • Cable tester
  • Toner probe (Correct)
  • Punch down

Answer : Toner probe

Explanation 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.

Pick out the public IP address.

Options are :

  • 192.168.1.1
  • 10.0.0.1
  • 172.16.0.1
  • 62.10.1.1 (Correct)

Answer : 62.10.1.1

Explanation 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 A+ (220-801) Certification Exam Practice Test Set 1

A technician is repairing a workstation that exhibits random reboots at odd times of the day. Which of the following should be performed first when troubleshooting the issue? (Select two.)

Options are :

  • Check the optical drive integrity
  • Check the video card integrity
  • Check the PSU integrity (Correct)
  • Check the CMOS battery
  • Check the memory integrity (Correct)

Answer : Check the PSU integrity Check the memory integrity

Explanation 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.

A technician is building a PC with a motherboard he has not used in the past. He notices that the 8 DIMM sockets are numbered 0 through 7, and are colored yellow and black, equally. Which of the following would the technician do FIRST?

Options are :

  • Consult the motherboard documentation. (Correct)
  • Utilize socket 0 first, then 1, etc.
  • All sockets must be utilized.
  • Utilize the black DIMM sockets first.
  • Utilize the yellow DIMM sockets first.

Answer : Consult the motherboard documentation.

Explanation 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.

Twenty Windows 7 laptops must have their memory upgraded from 2 GB to 4 GB. Some of the laptops use DDR2 and some use DDR3. The memory purchased for the upgrade was all DDR3. What will most likely happen during this upgrade?

Options are :

  • The DDR3 notebooks are the only ones that will accept the new memory (Correct)
  • The DDR3 memory will not work correctly unless the CAS (CL) values are the same
  • The DDR2 memory will fit in the DIMM positions and work
  • The DDR2 notebooks will work with DDR3 provided the DDR2 is installed in the first DIMM positions

Answer : The DDR3 notebooks are the only ones that will accept the new memory

Explanation 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.

CV0-001 CompTIA Cloud+ Certification Practice Exam Set 7

Joe is considering getting into the CAD game. What should he look for in a computer if he's going to be doing computer-aided drafting and 3D modelling?

Options are :

  • Powerful processor, high-end graphics card, and maximum RAM (Correct)
  • Surround sound audio, compact form factor, HDMI output
  • File streaming, printer sharing, and a RAID array
  • Processor and RAM that meets minimum Windows requirements

Answer : Powerful processor, high-end graphics card, and maximum RAM

Explanation 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.

What type of connection is necessary to connect a touchscreen LCD monitor apart from DVI and power?

Options are :

  • Parallel
  • USB (Correct)
  • Ethernet
  • SCSI

Answer : USB

Explanation 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.

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