CompTIA A+ Certification 220-901: Exam

What port does e-mail traditionally use to receive mail?

Options are :

  • 110 (Correct)
  • 143
  • 443
  • 80

Answer : 110

Explanation Correct Answer:The POP3 protocol uses port 110.Incorrect Answers:Port 80 is used by the HTTP protocol.Port 143 is used by the IMAP protocol, which also receives e-mail, but is less commonly used than POP3.Port 443 is used by the HTTPS protocol.

Of the following connection types, which can operate over the longest distance?

Options are :

  • CAT 5
  • CAT 6
  • Fiber (Correct)
  • USB 3.0

Answer : Fiber

Explanation Correct Answer:Fiber-optic connections can operate over2000 meters.Incorrect Answers:The USB 3.0 standard doesn't actually define a maximum cable length, but it's probably somewhere around 3 meters.Both CAT 6 and CAT 5 cables have a maximum length of 100 meters.

Which of the following ports are most commonly used when sending or receiving e-mail? (Select two.)

Options are :

  • 110 (Correct)
  • 25 (Correct)
  • 443
  • 53
  • 80

Answer : 110 25

Explanation Correct Answers:Port 25 is used by the SMTP protocol, which is responsible for sending e-mail, and port 110 is used by the POP3 protocol, which is responsible for receiving e-mail.Incorrect Answers:Port 53 is used by DNS.Port 80 is used by HTTP.Port 443 is used by HTTPS.

You are shopping for a new wireless router. Which standard is going to provide you the fastest throughput?

Options are :

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

Answer : 802.11n

Explanation Correct Answer:Of the different Wi-Fi standards, 802.11n offers the greatest throughput at up to 600 Mbps.Incorrect Answers:802.11a and 802.11g both operate at 54 Mbps.802.11b operates at 11 Mbps.

A user who returns from vacation complains that his battery is draining quickly since his vacation. During the vacation he installed a new app that uses the GPS function on his mobile device. Which of the following will MOST likely resolve the issue without a loss of data?

Options are :

  • Adjust location settings. (Correct)
  • Reboot the mobile device.
  • See if the app has an update available.
  • Uninstall the GPS-enabled app.

Answer : Adjust location settings.

Explanation Correct Answer:Adjust the local settings. Some GPS apps use location reporting or location history. These items can be turned off without causing a loss of data, and will help maximize your battery life.Incorrect Answers:Rebooting the mobile device will not turn off the setting that is causing the drain.An app update will not turn off the setting that is causing the drain. Uninstalling the GPS enabled app will stop the drain, but it could cause a loss of data.

A user needs to install a legacy software on a netbook. Which of the following is MOST likely needed in order to install the software?

Options are :

  • Bluetooth adapter
  • Lightning port
  • NFC chip
  • USB optical drive (Correct)

Answer : USB optical drive

Explanation Correct Answer:Netbooks are designed to perform most of the functions of a laptop, but are smaller and more light weight. In order to achieve this, optical drives are not installed. Legacy software installs from a CD or DVD drive.Incorrect Answers:Lightning ports are used to connect peripherals on Apple devices.A Bluetooth adapter is not designed for installation of software.Near field communication is a protocol for data transfer; it is not designed for software installation.

A user is reporting that her laptop cannot connect to the wireless network from her office, even though she was able to connect yesterday. Which of the following would be the most likely reason?

Options are :

  • Channel interference
  • Radio switch on laptop is disabled (Correct)
  • Radio switch on laptop is enabled
  • User is too far away from the access point

Answer : Radio switch on laptop is disabled

Explanation Correct Answer:The radio switch is the bane of laptop users everywhere. It's very easy to accidentally switch the wireless signal off, which many users don't think to look for.Incorrect Answers:If the radio switch was enabled, there would be no connectivity issue.Channel interference would most likely result in slower network speeds, not a connectivity issue.Assume that the user was trying to connect from the same location as yesterday.

A technician is trying to diagnose a laptop that is experiencing heavy artifact corruption and random loss of video during operation. Which of the following are most likely causes of this problem? (Select two.)

Options are :

  • Incompatible or untested video drivers have been installed (Correct)
  • Integrated system video chip is failing and/or near death (Correct)
  • The BIOS is not set for the proper operating temperature of the video chipset
  • The BIOS is underclocking the video card's operating speed
  • Video drivers were not installed directly from Windows Update

Answer : Incompatible or untested video drivers have been installed Integrated system video chip is failing and/or near death

Explanation Correct Answer:This sounds like a case of either a dying video card or bad video drivers. Hopefully it's the drivers, or else the laptop's owner is about to have to go laptop shopping.Incorrect Answers:It's not at all necessary (and is in fact probably a bad idea) to install video drivers from Windows Update.The BIOS doesn't have to be set for the operating temperature of the video chipset. This is a nonsense answer.Underclocking a video chipset is unlikely and, if it was occuring, would probably tend to make things more stable, not less.

The image on a customer's laptop is very dim, with only the outline visible. What can cause this problem? (Select two.)

Options are :

  • CRT
  • Inverter (Correct)
  • LCD (Correct)
  • OLED
  • Plasma screen

Answer : Inverter LCD

Explanation Correct Answers:If the LCD's inverter fails, the backlights can't get any power, causing the image to be so dim as to look almost black.Incorrect Answers:Laptops don't use plasma screens or CRTs, since they are heavy and bulky.OLED screens are very uncommon and don't require a backlight. They either work or they don't; the picture won't get dim from an error.

What is the best way to toggle between a laptop's screen and an external monitor?

Options are :

  • Display settings in Control Panel
  • Function keys on keyboard (Correct)
  • Task Manager
  • Turn the monitors on and off

Answer : Function keys on keyboard

Explanation Correct Answer:The function keys on the keyboard enable users to do things like change the brightness and contrast of the screen, change the speaker volume, and toggle to an external monitor.Incorrect Answers:Task Manager enables you to end unresponsive processes, start and stop services, and check your computer's performance.The display settings won't enable you to toggle a monitor on or off.Turning the monitor on and off won't do anything if the PC isn't outputing any video to it.

What device enables a laptop with a single video output port to support multiple monitors?

Options are :

  • Adjustable monitor arm
  • Docking station (Correct)
  • PCMCIA card
  • VGA to DVI converter

Answer : Docking station

Explanation Correct Answer:A docking station enables you to add additional ports and features that a laptop would otherwise not have.Incorrect Answers:A VGA to DVI converter just enables you to hook a DVI cable up to a VGA port.A monitor arm enables you to reposition your monitor.A PCMCIA card is a type of expansion card for a laptop.

A Windows user states that every time she hits certain letter keys on her notebook, a number appears instead of the letter. Which of the following items is most likely the cause of this problem?

Options are :

  • The user changed the keyboard character set
  • The user enabled accessibility options
  • The user enabled num lock (Correct)
  • The user enabled sticky keys

Answer : The user enabled num lock

Explanation Correct Answer:The num lock key on a laptop turns part of the keyboard into a number pad, like you'd find on a desktop keyboard. This can be surprising if you don't realize what's going on!Incorrect Answers:Sticky keys is an accessibility feature for people who can't press more than one key at a time.Changing they keyboard character set wouldn't cause this problem.There's no accessibility option that would cause a problem like this one.

If a technician has just replaced a laptop's motherboard due to video issues, what should he do first if the speakers stop working?

Options are :

  • Check the speakers' connection to the motherboard (Correct)
  • Replace the speakers
  • Update the video drivers
  • Verify that the speakers are compatible with the replacement motherboard

Answer : Check the speakers' connection to the motherboard

Explanation Correct Answer:It's very likely that the speakers simply didn't get hooked up correctly.Incorrect Answers:Video drivers probably won't have much to do with sound issues.Don't replace the speakers before making sure that they're hooked up properly.Due to the way laptop hardware works, the replacement motherboard is probably the exact same as the old motherboard.

What component can you not typically upgrade on a laptop?

Options are :

  • Hard drive
  • RAM
  • Video card (Correct)
  • Wireless card

Answer : Video card

Explanation Correct Answer:It's not possible to upgrade video cards in most laptops. Incorrect Answers:You can upgrade hard drives, RAM, or wireless cards in most laptops.

Police commisioner Gordan has noticed a rash of laptop thefts throughout Gotham city. What can he recommend to Gotham's citizens as the most effective way to prevent laptop theft?

Options are :

  • A badge reader
  • A cable lock (Correct)
  • A CCTV system
  • A retina scanner

Answer : A cable lock

Explanation Correct Answer:A cable lock will stymie all but the most dedicated thieves.Incorrect Answers:CCTV doesn't prevent theft so much as make it easier to find the thieves.Badge readers and retina scanners won't stop someone from picking up your laptop and walking off with it.

You want to equip yourself with FRUs for a laptop. What would you take with you? (Choose two.)

Options are :

  • Hard drive (Correct)
  • NIC
  • RAM (Correct)
  • SD card reader
  • Video card

Answer : Hard drive RAM

Explanation Correct Answers:The HDD and RAM are very easy to replace and are considered laptop field replaceable units (FRUs).Incorrect Answers:Video cards, NICs, and SD card readers are usually integrated into the laptop's motherboard and are not considered FRUs.

When you disconnect the AC adapter from the wall, your laptop screen dims, why is this happening?

Options are :

  • The laptop is unable to use 100% brightness on battery power alone
  • The LCD screen in a laptop requires the 60-Hz AC power connector
  • The power management options in your OS have been configured to do this (Correct)
  • The video driver on your laptop has not been configured correctly

Answer : The power management options in your OS have been configured to do this

Explanation Correct Answer:Your operating system has been configured to switch itself into "power conservation" mode while not running on AC power. I do the same thing on my laptop, but instead of dimming the screen, when my AC power is disconnected, Windows Aero is automatically disabled to conserve resources.Incorrect Answers:The LCD screen does not "require" the 60-Hz AC power to run at full brightness. It can do that just fine on battery power, just not for as long as if it were on AC power.The laptop is unable to use 100% brightness on battery power alone. This simply isn't true. The battery will just run out faster at 100% brightness.The video driver on your laptop has no bearing on the power management settings.

Jim wants to be able to access his favorite website wirelessly with his new laptop, from anywhere. Which of the following would be the BEST choice for him to install/configure?

Options are :

  • 802.11g wireless card
  • Bluetooth card
  • Cellular card (Correct)
  • Infared card

Answer : Cellular card

Explanation Correct Answer:A cellular card would allow Jim to be in any location he would like and not have to worry about wires. Unless there's no cellular signal. Sorry, Montana!Incorrect Answers:Bluetooth and Infared are known for their ability to connect devices wirelessly in short ranges, but not for internet connections.An 802.11g wireless card would be great, however, Jim wants to be able to go anywhere. That includes the middle of the park if he wants.

Today's portable computers invariably use which of the following battery technologies?

Options are :

  • Alkaline
  • Lithium Ion (Li-Ion) (Correct)
  • Nickel Cadmium (Ni-CD)
  • Nickel Metal Hydride (Ni-MH)

Answer : Lithium Ion (Li-Ion)

Explanation Correct:Lithium Ion (Li-Ion) is the dominant technology.Incorrect:Nickel Cadmium (Ni-CD) and Nickel Metal Hydride (Ni-MH) are earlier technologies no longer used in portable computers. Alkaline batteries cannot be used with any electronics that need constant voltage.

A mobile phone is responding slowly and erratically for a user. The user has tried a soft reset on the device, but the phone continues to respond slowly. Which of the following is the BEST step the user can take to fix this problem?

Options are :

  • Change your power settings.
  • Close applications that are unsused. (Correct)
  • Reset to factory default.
  • Turn off your location services.

Answer : Close applications that are unsused.

Explanation Correct Answer:Close the unused apps is the best answer. Many people do not realize that the amount of applications that are running in the background on your mobile device. If you have performance issues, try reviewing the applications that are running on your system, and close applications that are not being used.Incorrect Answers:Power settings will not assist, they are designed to help the battery life of a device.Resetting the tablet may fix the problem, however, you will lose all your data. This problem does not require drastic measures.Turning off location services will not assist. It may help your battery, but it would not affect your response time.

A customer notices that when they are in their basement, her smartphone battery drains unusually fast, and they have poor cellular reception. Which of the following is the reason for the fast battery drainage?

Options are :

  • Defective MicroSD card
  • Malware
  • Unpaired Bluetooth
  • Weak signal (Correct)

Answer : Weak signal

Explanation Correct Answer:Cellular phones are foremost a phone, and will strive to maintain a cellular signal. The constant attempt to connect to the cellular tower with bad reception can drain your battery at a higher rate than usual.Incorrect Answers: Unpaired bluetooth will not cause a signficant drain on the battery.A defective MicroSD card will not drain power from your battery.Malware is a term used to refer to intrusive software and malicious progams.

A techinician is needs to replace a touch screen on a laptop that supports Windows 8.1. Which of the following is the FIRST step the technician should perform?

Options are :

  • Document and label each component upon removal.
  • Recalibrating the LCD screen.
  • Refer to the manufacturer's documentation. (Correct)
  • Removal the laptop bezel.

Answer : Refer to the manufacturer's documentation.

Explanation Correct Answer:Laptop manufacturers all have different procedures for screen removal. It is always best to review the documentation from the manufacturer to ensure you don't have any problems with the repair.Incorrect Answers:Removal will be necessary, but first you must know how to remove the bezel properly.Documentation and labeling is good, but first you must know how to remove the bezel properly.The LCD will not need any tuning until it is installed.

A customer calls and states the new plasma display he just received has a few very noticeable tiny yellow spots at different places on the screen. Which of the following is the most likely cause of this issue?

Options are :

  • Dead pixels
  • Dropped in shipping
  • Stuck pixels (Correct)
  • Using wrong video connector

Answer : Stuck pixels

Explanation Correct Answer:Stuck pixels show up on a monitor as tiny, unchanging discolored spots. Super annoying!Incorrect Answers:a dead pixel gets no input and is always black. Using the wrong video connector would simply prevent any image from being displayed.A dropped monitor tends to look like a dropped piece of glass.

A technician is called in to troubleshoot a four-disk RAID 10 array on a high-end Windows 7 Enterprise workstation. One drive has failed. Which of the following should the technician do to fix the problem?

Options are :

  • Add a fifth drive and make it a spare
  • Replace the failed drive and make sure the RAID rebuilds successfully (Correct)
  • Replace the failed drive and power down the RAID
  • Reseat the drive and verify the RAID array is healthy

Answer : Replace the failed drive and make sure the RAID rebuilds successfully

Explanation Correct Answer:Replace the drive and make sure the array rebuilds successfully. You don't want to leave the drive in the array for one second longer than necessary.Incorrect Answers:Don't just reseat the drive. You need to replace it.After replacing the drive, don't just power the RAID down. You need to make sure that the RAID rebuilds the drive.You can't just add a fifth drive to a RAID 10 array. A RAID 10 has 4 drives by definition.

Which of the following supports IP telephony devices without requiring external power?

Options are :

  • PoE (Correct)
  • QoS
  • VPN
  • WEP

Answer : PoE

Explanation Correct Answer:Power over Ethernet (or PoE) enables networking devices to get their power through an Ethernet cable rather than a power cord.Incorrect Answers:A VPN, or virtual private network, is used to enable remote connections to a local network.QoS, or quality of service, is a method for maintaining stable network performance by prioritizing some network packets over others.WEP is an encryption standard for wireless networks.

A wireless network is experiencing intermittent connectivity. Which of the following would best resolve this issue?

Options are :

  • Change broadcast channel (Correct)
  • Disable SSID broadcasting
  • Enable MAC filtering
  • Enable wireless encryption

Answer : Change broadcast channel

Explanation Correct Answer:Changing your broadcast channel to a less-used one can prevent interference caused by other nearby wireless networks.Incorrect Answers:MAC filtering, wireless encryption, and disabling SSID broadcasting are all security measures, not solutions to intermittent connectivity.

A user calls the help desk and states that she suddenly cannot connect to the Internet or any other network resources. The user is on a company network that uses DHCP. The technician runs IPCONFIG from the command prompt and the PC has an IP address of Which of the following steps should the technician perform first to troubleshoot this issue?

Options are :

  • Assign a static IP address
  • Check the network cable (Correct)
  • Reinstall the network drivers
  • Replace network card

Answer : Check the network cable

Explanation Correct Answer:First off, make sure you check the network cable. A address means that the computer isn't connected to any network.Incorrect Answers:You might eventually want to try replacing the network card or reinstalling the network drivers, but before going to all that effort, why not just check the cable?Assigning a static IP address won't fix the problem.

A technician notices that a computer is making a loud clicking noise but continues to run. System speed is barely affected, but they cannot access certain drives. These are the symptoms of which of the following?

Options are :

  • Bad CMOS chip
  • Bad CPU fan
  • Failing second hard drive (Correct)
  • Failing system hard drive

Answer : Failing second hard drive

Explanation Correct Answer:It's highly likely that a non-system drive is on its way to the great hard drive bay in the sky.Incorrect Answers:If it was a system drive, then the computer wouldn't boot or would randomly crash.A bad CMOS chip would result in a non-booting PC.If the CPU fan went bad, it would likely cause the computer to shut down intermittently due to overheating.

A customer is not able to connect to any Web sites. Which of the following commands should a technician run first to identify the issue?

Options are :

  • IPCONFIG (Correct)


Explanation Correct Answer:The IPCONFIG command will show you a system's IP information, which should enable you to more effectively troubleshoot the system.Incorrect Answers:NETSTAT displays all the network connections being made to a system.NET SHOW is a command for IBM's WebSphere Cast Iron client. Not something you'll run into while doing desktop support.TRACERT lists all the routers that a packet takes as it travels to its destination.

A laser printer is producing completely blank sheets. Which of the following processes should the technician check first?

Options are :

  • Cleaning
  • Fusing
  • Paper handling
  • Transfer (Correct)

Answer : Transfer

Explanation Correct Answer:The transfer roller is responsible for giving the paper a positive electrical charge, which attracts the negatively charged toner. If that's not working, then the toner doesn't go anywhere.Incorrect Answer:A non-working fuser just creates smudges.If the paper handling goes awry, then you get paper jams.A malfunctioning cleaning step just makes splotchy or streaked printouts.

A user sent an e-mail requesting that a technician check if a computer is on and connected to the Internet so the user can log in from home. Which of the following commands in the command prompt would a technician use to verify if the computer is on and connected without having to go to the computer?

Options are :

  • PING (Correct)

Answer : PING

Explanation Correct Answer:The PING command will attempt to contact the computer, so you'll know if it's online or not.Incorrect Answers:NSLOOKUP enables you to see domain name and IP information for a computer.NETSTAT enables you to display routing tables and network connections for a particular comnputer. It's a very powerful tool.IPCONFIG displays IP information about your local computer.

Which of the following is the best tool to make sure a network cable is securely fastened in an RJ-45 connector?

Options are :

  • Cable tester
  • Crimper (Correct)
  • Punch down
  • Small flat screwdriver

Answer : Crimper

Explanation Correct Answer:A crimper attaches RJ-45 plugs to the ends of an Ethernet cable.Incorrect Answers:A cable tester will ensure that you've crimped a cable properly, but you can't crimp cable with one.Neither a screwdriver nor a punch down tool will help you here.

Which of the following can be used as a boot device?

Options are :

  • HDMI
  • Tuner card
  • USB drive (Correct)

Answer : USB drive

Explanation Correct Answer:Of these options, only a USB drive can hold data, making it the only possible boot device.Incorrect Answers:HDMI is an interface for high-definition audio/visual signals.A tuner card picks up television signals on a PC.FDISK is a command-line utility used to partition disks.

A user is installing Windows 7 on a PC with a RAID card. The user has verified all of the cables are connected correctly, but the installation media does not detect any hard drives. Which of the following should the user do to help detect the hard drives?

Options are :

  • Enable PATA in the BIOS
  • Hit the refresh button to force a re-detect
  • Press F8 when prompted
  • Select load driver (Correct)

Answer : Select load driver

Explanation Correct Answer:Loading a driver for your RAID controller enables the Windows install process to communicate with your faincy multi-drive array.Incorrect Answers:Pressing F8 is how you bring up the Safe Mode options during a normal Windows boot.Hitting refresh probably won't do anything if everything's plugged in correctly.Enabling PATA in the BIOS won't help if you're using a RAID card.

A technician troubleshoots a broken PC only to find that a strong burning odor is coming from inside the case. Which of the following parts most likely experienced a level of electrical burn?

Options are :

  • CMOS battery
  • Hard drive
  • Processor
  • PSU (Correct)

Answer : PSU

Explanation Correct Answer:The power supply unit (PSU) is the most likely thing to experience electrical burn.Incorrect Answers:The rest of the components listed are much less likely to experience electrical burn.

You are working on a laptop with an LCD screen that has dead pixels. What is the best way to get rid of them?

Options are :

  • Replace the back bezel
  • Replace the backlight
  • Replace the inverter
  • Replace the LCD panel (Correct)

Answer : Replace the LCD panel

Explanation Correct Answer:Those pixels are defective and the LCD is failing to reproduce light levels correctly. The only way to fix this is to replace the LCD panel itself.Incorrect Answers:You should replace the inverter when you see nothing but a faint image on a dark screen. Replace the backlight(s) when the LCD screen starts to go dim or eventually just goes black.Replacing the back bezel might make your latop look brand new again, but it won't fix a dead pixel.

Bilal is on his wireless network and his laptop receives the IP address, but cannot connect to the Internet. Which of the following should Bilal check on the wireless router?

Options are :

  • DHCP (Correct)
  • DNS
  • WPA
  • WPA2

Answer : DHCP

Explanation Correct Answer:Dynamic Host Configuration Protocol (DHCP) is the protocol/service that hands out IP addresses to all the devices on your network. If you can't contact the DHCP server, then your computer will automatically generate an APIPA of 169.254.x.x.Incorrect Answers:Wi-Fi Protected Access (WPA) is a level of encryption that uses TKIP as its encrypting algorithm.Wi-Fi Protected Access version 2 (WPA2) is a full upgrade from WEP and WPA. It uses AES as its encryption algorithm and is the most secure encryption you can currently use in Wi-Fi.Domain Name Service or System (DNS) takes friendly domain names and turns them into IP address so that you can surf the World Wide Web in bliss.

You are troubleshooting a computer that reboots at strange times. Even when you try and access the CMOS setup, the computer will reboot. What should you check FIRST?

Options are :

  • Check for blown capacitors (Correct)
  • Check to see if the case fan is spinning
  • Check to see if your operating system is corrupted
  • Replace the CR-2032 battery

Answer : Check for blown capacitors

Explanation Correct Answer:Do a google search for "blown capacitor" and you will see exactly what I'm talking about. That is a rough situation there. When this happens, it will short circuit the conductors that are carrying power, causing random reboots, among many other types of errors.Incorrect Answers:While checking to see if your case fan is spinning is a good idea, it's not the FIRST thing to check for in this scenario.Replacing the CR-2032, or CMOS battery, will just give you a brand new CMOS battery, it won't stop the reboots from happening.We can't even stay in the CMOS setup screen before the computer reboots, so don't go troubleshooting your OS just yet.

You are troubleshooting a desktop computer. You have just removed every component, except for the bare essentials, but the computer still won't boot up. When you turn on the computer, all you receive from the system is a repetitive series of beeps. Which of the following is MOST likely the problem?

Options are :

  • The CPU
  • The keyboard
  • The memory (Correct)
  • The video card

Answer : The memory

Explanation Correct Answer:The ongoing series of beeps is the wonderful sound of bad RAM. Swap the RAM out and get some that is working and compatible with your system.Incorrect Answers:The keyboard being bad or disconnected will usually show a prompt on your screen.The video card being bad or disconnected will usually be 1 long beep followed by 2 short ones.The CPU being missing or bad will make your computer just sit there like a rock with power applied to it.

Which of the following choices is true of an asynchronous digital subscriber line connection?

Options are :

  • The data download speed is faster than the data upload speed (Correct)
  • The data upload speed is the same as the data download speed
  • The data throughput speed direction can be selected based on the user's discretion
  • The data upload speed is faster than the data download speed

Answer : The data download speed is faster than the data upload speed

Explanation Correct Answer:As with basically every type of Internet connection, ADSL connections have faster downloads than uploads.Incorrect Answers:The other answers don't describe an ADSL connection.

Craster comes into the shop complaining that his laser printer is having trouble picking paper up from the first paper tray. What should a technician replace first?

Options are :

  • Rollers (Correct)
  • Toner
  • Transfer belt
  • Imaging drum

Answer : Rollers

Explanation Correct Answer:The rollers are responsible for picking paper up out of the paper tray. Replacing the rollers should fix Craster's printer problem.Incorrect Answers:Toner is what a laser printer transfers onto the paper to create images.The transfer belt is used in color laser printers for precisely transferring all the different colors of toner.The imaging drum is the part of the printer that the lasers apply a negative charge to, which is what attracts toner to the page.

Johan needs to finish a presentation before his plane lands, but the underside of his laptop is scorching his legs. What should he do?

Options are :

  • Nothing, all laptops are warm on the bottom.
  • Place the laptop on a hard, smooth surface. (Correct)
  • Ask the flight attendant for a pillow.
  • Put the laptop into sleep mode.

Answer : Place the laptop on a hard, smooth surface.

Explanation Correct Answer:Laptops need a flat, smooth surface for proper airflow.Incorrect Answers:Nothing, all laptops are warm on the bottom. Most laptops get a little warm, but he shouldn't be burned by one!Ask the flight attendant for a pillow. A pillow is the last thing his laptop needs.Put the laptop into sleep mode. This would cool it down, but then he couldn't finish his work.

A client has an issue with large files taking a long time to open or save. As time goes by, the issue worsens. The client has hundreds of GBs of files that are still in the process of backing up. The technician has verified that the hard drive is healthy and there are no signs of failure. Which of the following troubleshooting steps should the technician perform NEXT?

Options are :

  • Perform a scan of the hard drive for disk fragmentation. (Correct)
  • Perform a chkdsk on the hard drive.
  • Reformat the drive with NTFS and reinstall the system software
  • Update the motherboard drivers.

Answer : Perform a scan of the hard drive for disk fragmentation.

Explanation Correct Answer:Disk fragmentation happens to a hard drive over time as you save, change, or delete files. Disk defragmentation is the process of consolidating fragmented data on a hard drive, so it will work more efficiently.Incorrect Answers:Motherboard drivers will not allow your files to save and open faster. Drivers allow your devices to communicate.Chkdsk scans and repairs hard drives for file system errors. It can help in data loss, but not file access speed.Reformatting the drive may help, but is destructive to the system and unnecessary.

What is a common way to calibrate a barcode reader after installing it?

Options are :

  • Scan in program codes (Correct)
  • Use Device Manager to enable I/R ports
  • Enable the code reader in the BIOS
  • Adjust jumper switches

Answer : Scan in program codes

Explanation Correct Answer:Many barcode readers come with a set of program codes that help calibrate the device.Incorrect Answers:You don't need to enable the reader in BIOS, enable I/R ports, or adjust jumpers.

After connecting a laptop to an external monitor, no display is detected and the monitor goes into sleep mode. Which of the following should be attempted first to correct the problem? (Select two.)

Options are :

  • Toggle the display using the keyboard shortcut (Correct)
  • Reboot the operating system
  • Reload the display adapter drivers
  • Verify network connectivity
  • Change the input mode on the monitor (Correct)

Answer : Toggle the display using the keyboard shortcut Change the input mode on the monitor

Explanation Correct Answers:You should first try to change the input mode on the monitor, ensuring that it's looking at the correct video source. Also make sure that your laptop is actually outputting to an external display by using the keyboard's external display toggle.Incorrect Answers:Rebooting probably won't help. It might be OK to try eventually, but not before the correct solutions.Reloading the display drivers won't help.Network connectivity has nothing at all to do with this problem.

A technician installed a second hard drive in a computer. Upon restart, a message appears stating, "Primary drive 0 not found. Press F1 to continue." Which of the following should the technician check first?

Options are :

  • If the BIOS boot settings are correct
  • Proper drive installation (e.g. cables/jumpers) (Correct)
  • That NTLDR and boot.ini are not missing
  • If computer can boot into Safe Mode

Answer : Proper drive installation (e.g. cables/jumpers)

Explanation Correct Answer:Error messages after a drive installation is a good sign that you might have installed the drive improperly.Incorrect Answers:A newly-installed drive wouldn't have NTLDR or boot.ini on it.A computer that can't find its hard drive won't be able to boot into Safe ModeIf everything's installed properly, then you'd check the boot settings in BIOS. But not first.

A technician user is building a system that requires turning off the onboard video and installing a higher end video card. When booting to the operating sytem, the card is not working correctly, although it was working fine on the test bench. Which of the following Windows utilities should the technician use to start troubleshooting the problem?

Options are :

  • Task Manager
  • System Configuration
  • Device Manager (Correct)
  • Computer Management

Answer : Device Manager

Explanation Correct Answer:Device manager is the Windows utility used to view the hardware devices in your system, and determine if they are working properly. It will also allow you to modify the system's hardware settings.Incorrect Answers:Task Manager allows you to review software and operating system software that is currently running.System Configuration is a utiity that allows you to identify the problem with the Windows startup process.Computer Management is a collection of tools to manage a local or remote computer.

Ursula needs to configure a Cisco router using the serial port on her Vista laptop. The router documentation says the COM port needs to be set to: 9600 bits/sec, 8 data bits, no parity, one stop bit. Where does she go to make these settings for the serial port?

Options are :

  • Phone and Modem Control Panel applet
  • Sound Control Panel applet
  • CMOS
  • Device Manager (Correct)

Answer : Device Manager

Explanation Correct:Device Manager. Go to the Ports setting and locate your serial port. Select Properties.Incorrect:Your CMOS will have settings to enable/disable the serial port as well as settings to set I/O addresses and IRQs, but there will not be settings for the COM port.The Sound Control Panel applet controls sound inputs and outputs, not COM ports.The Phone and Modem Control Panel applet sets up your telephony rules and tests your modems but does not deal with serial ports.

A technician receives a report from a client that is having issues with colors on a monitor. The technician notices that the monitor does not appear to have any red hues. The technician sees that the monitor has two types of inputs. VGA is currently in use, and the HDMI cable is not. The technician powers down the system and switches from using the VGA cable to the HDMI cable and the issue is resolved. Which of the following was MOST likely the issue?

Options are :

  • The VGA cable had damaged pins. (Correct)
  • The video card drivers need to be updated.
  • HDMI was the original diplay configuration.
  • The monitor did not support VGA input.

Answer : The VGA cable had damaged pins.

Explanation Correct Answer:Since the HDMI cable resolved the issue, the cable was damaged.Incorrect Answers:Display configuration will adjust when a new type is connected.The VGA cable had already been in use.Since the cable resolved the issue, the drivers were not outdated.

Where do you configure things like basic boot priorities, voltage parameters for the processor, and SATA options in a PC system?

Options are :

  • BIOS
  • MBR
  • VRAM
  • CMOS (Correct)

Answer : CMOS

Explanation Correct Answer:CMOS setup enables you to change BIOS settings, such as CPU voltage, SATA options, and boot priorities.Incorrect Answers:MBR stands for master boot record, which contains partition information for a drive.VRAM was a type of memory used in old graphics cards.BIOS contains instructions about how the computer boots and how the hardware interacts with the software.

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