Class test 220-901
Ghost images - Ghost images are light images of pages that were previously printed that are appearing on the currently printed page. This is usually caused by the erasure lamp or cleaning blade. The cleaning blade is part of the toner cartridge and is easier to replace than the erasure lamp
T
Home Server - RAID array, Gigabit NIC
T
Home Theater PC - Surround-sound audio, TV tuner, HDMI output
T
In hibernate mode, the contents of RAM are written to a hard disk, and the computer powers down completely. You can wake a computer from hibernate mode by pressing the power button, which powers up the computer, and transfers the saved contents of memory from the hard disk back to RAM
T
Loud noise - Loud noise is usually caused by system fans, the power supply, or the hard drives because very few internal devices have moving parts
T
Low memory errors - Often just turning the printer off and back on will fix this problem
T
No display - This is most often caused when the display is dimmed via the controls or when the display has been sent to the external device
T
No image on printer display - This is most often caused because the printer is unplugged or in standby mode.
T
No sound from speakers - This is most often caused by the sound being muted or the device being in silent or vibrate mode. If that does not fix the problem, try adjusting the volume. As a last resort, reboot the device.
T
Overheating - If your mobile device overheats, try removing the protective case that you have it in. Other solutions are to remove the device from direct sunlight; shut down apps you are not using, or buy a glare screen and turn down the brightness. Finally, turn your mobile device off or put it in airplane mode when not in use.
T
Paper not feeding - This is usually caused by worn pickup rollers. Replace the pickup rollers. Pickup rollers are part of printer maintenance kits.
T
Printer will not print - If you are sure that the printer has power and paper, you should try printing a test page.
T
Printing blank pages - The most often cause of this problem is that the printer is out of ink or toner. It can also be caused by clog print nozzles in an ink jet printer.
T
SXGA stands for Super Extended Graphics Array. This LCD technology provides a maximum resolution of 1280 x 1024.
T
Slow performance - This is usually caused by too many apps running in the background.
T
Sticking keys - Dust accumulation can cause keys to stick. In addition, most keys have a spring that can wear out. First you should try to blow out the keyboard using compressed air
T
Streaks - This problem is usually caused by a malfunctioning fuser because the fuser is responsible for fusing the toner to the paper.
T
System lockups - System lockups occur when the system mysteriously stops functioning and no error or BSOD is displayed. Examine the system log files to troubleshoot the issue. Usually system lockups are due to memory issues, viruses, malware, or video issues.
T
Touchscreen non-responsive - This is most often caused by a dirty screen
T
Twisted nematic (TN) panel types are the oldest and are still widely used. Advantages of TN include: 1. Provide the shortest response times 2. Offer high brightness 3. Draw less power 4. Cheap to manufacture The disadvantage for TN is the color shifts that occur at wider viewing angles.
T
UXGA stands for Ultra Extended Graphics Array. This LCD technology provides a maximum resolution of 1600 x 1200.
T
Unable to decrypt email - This is usually caused by a missing or expired key or certificate
T
Unable to install printer - If this problem occurs, the account used to install the printer probably does not have permissions to install the printer. Use an administrative-level account to install the printer
T
Unexpected shutdowns - Random shutdowns that are not accompanied with a particular error message are usually the result of overheating.
T
Vertical black lines on page - Vertical black lines are caused by scratches on the drum or dirty corona wire. If you suspect that scratches are on the drum, replace the toner cartridge. If you suspect the corona wire, try cleaning it first.
T
Vertical white lines - Vertical white lines are caused by a dirty transfer corona wire. Clean the corona wires.
T
Virtualization Workstation - Maximum RAM and CPU cores
T
WXGA stands for Wide Extended Graphics Array. This LCD technology provides a maximum resolution of 1366 x 768.
T
XGA stands for Extended Graphics Array. This LCD technology provides a maximum resolution of 1024 x 768
T
a hard drive will start emitting a grinding noise. This is the first sign of impending hard drive failure
T
To use the tracert utility, you should type the tracert command at a command prompt and either an ________________or a ________________ variable after the command.
IP address or a Domain Name System (DNS) name
You are explaining the significance of the wires running from a power supply. The Power Good signal sends power to the motherboard to indicate that the electrical power is sufficient, and can prevent the computer from booting. Which voltage is used by the Power Good signal?
+5
100BaseFX standard support network speed of 100 Mbps between two devices and a Maximum distance of _______ m.
100
Category 5 is suitable for transmissions of up to _____ Mbps.
100
The 10BaseT and 100BaseT topologies support a maximum distance of ________ m between two devices.
100
Category 5e and Category 6, which support speeds of up to ______ Mbps.
1000
Which network topology supports the longest maximum cable length? 10Base2 10Base5 10BaseF 100BaseT
10BaseF ( 10Mbps, maximum distance of 2 km and 10BaseF is also known as 10BaseFL )
Networks configured with a 10Base2 topology support a maximum cable length of ________ m.
185
Networks built on a 10Base5 topology support a maximum cable length of _____ m.
500
Jack has several areas in office where he needs to install cabling. He has coaxial cable on hand, and he would like to use splitters to connect the different computers and areas. If he runs multiple splitters, which effects should he anticipate? (Choose all that apply.) A. signal loss B. connection speed issues C. service quality issues D. more collisions E. fewer collisions
ABC ( signal loss, connection speed issues & service quality issues )
You want to use Enhanced Intel SpeedStep Technology in a laptop. Which components must support this technology to use it? (Choose all that apply.) A. motherboard B. BIOS C. software drivers D. operating system
ABD ( motherboard, BIOS, & operating system In addition, the chipset and processor must support the technology. )
A user named Brad calls and reports that he is unable to connect to a file server on your 100BaseT network, although he is able to connect to folders on other computers. A single hub exists on the network. A. a defective hub B. an improper termination C. a defective NIC in the file server D. a defective NIC in Brad's computer
AC ( a defective hub OR a defective NIC in the file server )
The _________________ is used in TCP/IP to resolve media access control { MAC } addresses to IP addresses.
Address Resolution Protocol (ARP)
You have decided to enable overclocking to increase the performance of a computer. On which computer components can you specifically enable overclocking? (Choose all that apply.) A. motherboard B. processor C. system bus D. RAM E. hard drive
BC ( processor, system bus )
You have a color laser printer that is connected through the network and is managed by a Windows Server 2008 print server. A user has requested that he be allowed to print to the color laser printer. You need to create a permanent connection to the printer. During printer setup at the user's computer, which factors can you use to connect to the printer? (Choose two.) A. MAC address B. IP address C. NetBIOS name D. Host name
BD ( IP address Host name )
You are setting up an 802.11a wireless network in a small office environment that includes three wireless access points. The wireless access points are at least 15 meters apart and are configured for automatic channel setting. Each time you turn the wireless access points on, the wireless access points choose the same channel. You need to ensure that the access points choose separate channels to prevent interference, using the least amount of administrative effort. What should you do? A. Increase the distance between the wireless access points to at least 20 meters. B. Manually configure each of the access points to use channels 1, 6, and 11, respectively. C. Start each wireless access point at a separate time. D. Reduce the signal strength on each access point.
C ( Start each wireless access point at a separate time. )
Which built-in laptop device below would be of the most use when conducting a meeting with a person in another location? A. Digitizer B. Wi-Fi antenna C. Webcam D. Microphone
C ( Webcams are better because they provide both audio and video )
What is the function of the nozzle gate in an inkjet printer? A. controls the paper movement B. contains ink in the ink cartridge C. controls whether ink is flowing from the ink cartridge D. controls how much ink is flowing from the ink cartridge
C ( controls whether ink is flowing from the ink cartridge )
You have purchased a program that requires a joystick. Which of these types of computer ports could allow you to attach a joystick? (Choose two.) A. an IEEE 1394 port B. an SPDIF port C. a DA-15 port D. a USB port
CD ( a DA-15 port & a USB )
Your printer is printing fuzzy text with white lines running through it. You need to clean the clogged print head of your inkjet printer. Which two activities can you undertake to immediately clean the clogged print head? (Choose two.) A. Replace the platen. B. Replace the nozzle. C. Power the inkjet printer off and then on. D. Replace the ink cartridge with a new ink cartridge. E. Run the printer management utility provided with the printer.
CE ( Power the inkjet printer off and then on. OR Run the printer management utility provided with the printer. )
What is the minimum category of UTP cable used with 10BaseT?
Category 3
The primary hard drive in your Windows computer has failed. You purchase a new hard drive and install it in your computer. What should you do first?
Change the hard drive configuration settings in the computer's BIOS. ( You cannot partition or format the hard drive until the hard drive is recognized by the computer's BIOS program. )
A user complains that the image on his monitor flickers a lot. This flickering occurs no matter which application the user has opened. What should you do?
Configure the video card driver to use a higher refresh rate.
What is the purpose of configuring printer availability on the Advanced tab of a printer's Properties dialog box?
It configures the days and times that a printer is available
________ addresses are configured on each NIC on an Ethernet network so that the nodes can be identified on the network.
MAC
A computer uses an LCD monitor. You need to deploy the highest resolution available for a high-end application. Which of the list LCD technology will provide this?
QXGA
A user from the accounting department has contacted you regarding problems with a dot-matrix printer. When you examine the output from the printer, several letters have missing dots from the page.
Replace the print head.
Frozen system - First, try plugging the mobile device into a power supply. Then you should try to power down or restart the device the normal way. If that is not possible, then remove the battery for a few seconds. Next you should delete the app that is causing the device to freeze. As a last resort, reset the device to the factory defaults
T
Garbled characters on paper - This problem is usually caused by an incorrect printer driver. Install the most up-to-date version of the correct printer driver.
T
Your department's laser printer recently began printing a vertical black line near the edge of every printed page. What should you do to resolve the problem?
Replace the toner cartridge.
Access denied - This is most often caused by the access control list (ACL) for the printer. Make sure that the user has been granted print permission
T
Apps not loading - First, you should make sure that your app and the device operating system is updated.
T
Backed up print queue - You can try to delete the print job from the print queue that you suspect is causing the problem. If this does not fix the problem, you will need to stop and restart the print queue
T
CAD/CAM Workstation - Powerful processor, high-end video, maximum RAM
T
Color prints in wrong print color - This is usually the result of a dirty print head. Clean the print head first. If the problem persists, replace the toner cartridge or ink cartridge.
T
Continuous reboots - Reboots are usually the result of electrical issues, power supply issues, or overheating.
T
Error codes - For any error codes you are given, consult the manufacturer's documentation or Web site to get details on the error.
T
Faded print - This is usually caused when a toner cartridge, ink cartridge, or ribbon is close to empty. You should replace the cartridge or ribbon with a new unit.
T
Fans spin, no power to other devices - If no beep codes are heard, you probably have motherboard failure
T
Flickering display - This is usually caused by an incorrect video driver or low screen refresh rate
T
For laser printers, this maintenance kit usually includes a fuser, transfer rollers, pickup rollers, separation rollers, and feed rollers. Resetting or recording the page count is vital after installing a new maintenance kit to ensure that the parts are replaced at appropriate intervals.
T
You have begun the process of replacing the CPU in your computer. You must ensure that the motherboard recognizes the new CPU. What should you do first?
Update the firmware. ( You should not access the motherboard vendor's Web site to find out if the CPU is compatible with the motherboard. You should perform this step prior to physically installing the CPU. )
Which WPA version requires the use of a RADIUS authentication server?
WPA-Enterprise
What does an inkjet printer use to push ink onto paper?
a piezoelectric crystal
Which tools can you use to measure the length of a cable based on the time required for an energy pulse to travel down the cable and return to the tool?
a time-domain reflectometer (TDR)
Which printer uses a transfer belt during the image transfer process?
color laser printer
You are troubleshooting a problem with a laser printer where several pages of random dots are produced when you try to print a one-page document. You have verified that the proper print driver is installed and that the printer settings are correct. What component is the most likely cause of this problem?
formatter board
If a laser printer produces accurate images that tend to smear easily, then the _______ assembly may need repair or replacement
fuser
You can use the _____________ utility to view IP configurations, such as IP address, subnet mask and default gateway.
ipconfig
You can use the ____________ utility with various switches to troubleshoot problems with DNS on computers that support the utility.
nslookup
The __________ is used in a dot matrix printer to hold the paper and push the paper for printing.
platen
Which laser printer component protects a fuser from overheating?
thermal fuse
If laser printer output is faded or indistinct, then the__________ ____________ may need cleaning or replacing.
transfer corona