Practice exam (2) Flashcards
You are examining an existing coaxial cable installation and notice that the previous technician installed a splitter. Which of the following statements is true?
The splitter will degrade the quality of the network signal
The splitter will cause the network connection to fail
The splitter will have no effect on the network signal
The splitter will degrade the quality of the network signal
Splitters generally have two effects on a network cable: They degrade the signal and limit the distance the signal will travel. Use them judiciously
Users on your network complain of poor wireless network access in a certain part of your building. They say that the connection is slow and disconnects frequently. You are using 802.11n wireless routers and access points. What tool should you use to troubleshoot the situation?
Wi-Fi analyzer
Protocol analyzer
Tone generator and probe
Wi-Fi analyzer
A wireless locator or a Wi-Fi analyzer can be either a handheld hardware device or specialized software that is installed on a laptop, and its purpose is to detect and analyze Wi-Fi signals
A desktop computer will not retain the system time or date. The user always needs to rest them after his system is powered off. What should you do for the problem?
Flash the BIOS
Replace the BIOS chip
Replace the CMOS battery
Replace the CMOS battery
A fairly common issue with the BIOS is it fails to retain your computer’s settings, such as time and date and hard drive configuration. The BIOS uses a small battery (much like a watch battery) on the motherboard to help it retain settings when the system power is off. If this battery fails, the BIOS won’t retain its settings. Simply replace the battery to solve the problem
You have just installed a new printer on a client’s workstation. When you attempt to print, nothing but garbled characters appear on the paper. Which two things are most likely to cause a problem like this? (Choose two)
The print spooler
The printer driver
The formatter board
The printer’s memory
The printer driver
The formatter board
The correct printer driver needs to be installed for the printer and operating system. For example, if you have an HP LaserJet Pro and a Windows 10 computer, then you need to install an HP LaserJet Pro driver made for Windows 10. If this is not done, you will get garbage out of the printer. The other cause of several pages of garbage being printed is a bad formatter board. This circuit board takes the information the printer receives from the computer and turns it into commands for the various components in the printer. Usually, problems with the formatter board produce wavy lines of print or random patterns of dots on the page
A user has turned in a tablet computer that has a swollen battery. What should you do to resolve the problem?
Order a new tablet for the user, drain the excess electrolyte from the battery, and then dispose of the defective one in the trash
Order a new tablet for the user and dispose of the defective one in the trash
Order a new tablet for the user and take the defective one to the recycling center
Order a new tablet for the user and take the defective one to the recycling center
If you have a swollen battery, turn the device off immediately and make sure that it’s not plugged into a charger. It may be possible to remove the battery, but swollen batteries are more prone to explosions than normal ones because the casing is already compromised. The best course of action is to purchase a new device. Take the battery or device to a proper recycling center to dispose of it. Never just throw it in the trash because it can explode and harm sanitation workers as well as cause significant damage to the environment
You are troubleshooting a Windows 10 desktop computer that boots into VGA mode. You have tried changing the resolution and reinstalled the video driver, but it still will only boot into VGA mode what should you do next?
Replace the monitor
Replace the video card
Flash the video card BIOS
Replace the video card
When your system refuses to boot into anything other than VGA mode, it indicates one of two problems. Either the video card is set to a resolution that it can’t handle or the video card driver isn’t loading properly. When in VGA mode, reset the video resolution to something you know the card can handle and reboot. If that doesn’t solve it, reinstall the driver. If it still doesn’t work, replace the video card
Youi are troubleshooting a laptop computer that won’t boot properly. When you power it on, there is nothing on the display, and you hear beeps in a pattern of 1-3-3. What two things could you use to troubleshoot the problem? (Choose two)
Manufacture’s website
PCIe POST card
USB POST card
BOOT tester
Manufacture’s website
USB POST card
The beeps are a BIOS beep code produced because there is an error in the POST routine. The manufacturer’s website will likely tell you what the beep code means, and you can also troubleshoot using a USB POST card. Laptops do not have PCIe slots, and there is no specific tool called a BOOT tester
When creating a custom computer configuration, what type of system will most benefit from high-end video cards and cooling systems?
Gaming PC
Home theater PC
A/V editing workstation
Gaming PC
Gaming PCs should have multicore processors, high-end video cards, high-definition sound cards, and high-end cooling systems
Which RAM modules have 240 pins? (Choose two)
DIMM DDR2
DIMM DDR3
DIMM DDR4
DDR4 SODIMM
DIMM DDR2
DIMM DDR3
DIMM DDR2 and DDR3 have 240 pins, while DDR4 has 288 pins. DDR4 SODIMM has 260 pins
Several Bluetooth devices are connected in an ad hoc network. Which acronym best describes this type of network?
LAN
WAN
PAN
PAN
A personal area network (PAN) is a small-scale network designed around one person within a limited boundary area. The term generally refers to networks that use Bluetooth technology
Your motherboard supports up-plugging for PCIe adapter cards. Which of the following statements is true?
You can put an x8 card into an x16 slot, but it will run at x1 speed
You can put an x8 card into an x16 slot, and it will run at x8 speed
You can put an x8 card into an x16 slot, and it will run at x16 speed
You can put an x8 card into an x16 slot, and it will run at x8 speed
The x8 card won’t completely fill the x16 slot, but it will work at x8 speeds if up-plugging is supported by the motherboard. Otherwise, the specification requires up-plugged devices to operate at only the x1 rate
You need to create several UTP patch cables from a roll of bulk cable. Your company uses the T568A standard. What is the correct order for wires in the connectors?
White/orange, green, white/green, blue, white/blue, orange, white/brown, brown
White/green, green, white/orange, blue, white/blue, orange, white/brown, brown
White/green, green, orange, blue, white/blue, white/orange, white/brown, brown
White/green, green, white/orange, blue, white/blue, orange, white/brown, brown
The correct order for a T568A patch (straight through) cable is white/green, green, white/orange, blue, white/blue, orange, white/brown, brown
You are troubleshooting wireless network issues on a Windows 8.1 laptop. Which command should you use to check the laptop’s IP address?
ifconfig
ipconfig
netstat
ipconfig
The ipconfig command is used in Windows to check a computer’s IP configuration information. ifconfig is used in Unix, Linux, and MacOS
Which computer component is most likely to use a DB15 connector?
Hard drive
Monitor
Keyboard
Monitor
A DB15 connector is most often used for VGA, or analog video, connections. Therefore, a monitor is the best choice
Which of the following statements is true about the function of the laser in the exposing step of the laser printing imaging process?
It decreases the charge from +600 VDC to +100 VDC
It increases the charge from -100 VDC to -600 VDC
It decreases the charge from -600 VDC to -100 VDC
It decreases the charge from -600 VDC to -100 VDC
In the exposing step, the image is written to the photosensitive imaging drum. Wherever the laser beam touches, the photosensitive drum’s charge is severely reduced from –600 VDC to a slight negative charge (around –100 VDC). As the drum rotates, a pattern of exposed areas is formed, representing the image to be printed
Your co-worker needs to transfer files from a mobile device using a memory card reader and an SD memory card. He quickly finds out that his maximum capacity is only 2 GB. Which technology does he have?
SD
SDLC
SDHC
SD
Mobile devices often make use of small form factor memory cards, such as Secure Digital (SD), miniSD, or microSD cards. Higher-capacity versions of these cards are SDHC, SDXC, miniSDHC, microSDHC, and microSDXC. The standard versions can hold up to 4 GB in storage, HC up to 32 GB, and XC up to 2 TB
You need to purchase new RAM for two computer systems, both of which have an FSB speed of 667 MHz. The computer specifications require DDR2. Which RAM modules should you purchase?
PC2-3200
PC2-5300
PC2-6400
PC2-5300
For DDR2, multiply the bus speed by 8 to identify the type of memory needed. In this case, 667 × 8 equals 5336. The PC industry rounds this off to 5300
After a lightning storm, the laser printer in your office will not power up. You are testing it with a multimeter. What voltage do you expect to see from pin 9?
-24 V
+24 V
+5 V
+24 V
A laser printer’s DC power supply provides three different DC voltages to printer components. Using the multimeter, you should find the following voltages: pin 1 +5 v, pin 5 –5 v, pin 9 +24 v
You need to print documents containing sensitive information, but all the printers are in a shared workplace. Which technology will allow you to hold the print job until you enter a PIN on the printer?
Virtual printing
Safe printing
Secure printing
Secure printing
To use secure printing, go into the printer preferences (or a similar place) and indicate that it’s a secure print job. The document will not print until you physically go to the printer and enter the PIN
A guest speaker plugs an external projector into her laptop, using the VGA port on the back of the laptop. The projector is on but just shows a blue screen instead of her presentation. What is the easiest way for her to fix this issue?
Press the Fn key on her keyboard and toggle the projector backlight function key until the image appears
Press the Fn key on her keyboard and toggle the video output function key until the image appears
Press the Fn key on her keyboard and toggle the Screen brightness function key until the image appears
Press the Fn key on her keyboard and toggle the video output function key until the image appears
Because of the much smaller space available for keys, some laptop keys are consolidated into special multifunction keys. These keys are accessed through the standard keys by using a special function (Fn) key. Nearly every laptop has a video connector on the back or the side to plug in an external monitor or a projector. You will need to use the video toggle key to get this external port to work
Which of the following IP addresses is not routine on the internet?
- 168.1.1
- 169.1.1
- 192.1.1
192.168.1.1
Private IP addresses are not routable on the Internet. The private IP address range for class C networks is 192.168.0.0/16
A technician is troubleshooting a computer in the field and calls you to report that she is getting a S.M.A.R.T, error ID 8=188, Command timeout. Which component is likely to be causing this error?
CPU
RAM
HDD
HDD
Nearly every hard drive is built with Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) software installed on it, which monitors hard drive reliability and theoretically can warn you in the event of an imminent failure
A user reports that when he presses the L key on his laptop keyboard, the L character repeats across the screen and doesn’t stop until he presses the L key several more times. When you look at the laptop. It does not appear that the key is physically sticking. What should you tell him to do next?
Replace the keyboard
Replace the L key
Reboot the laptop
Reboot the laptop
If a key on the laptop keyboard is stuck, you need to determine whether the contact is having problems or whether the key itself is stuck. If the key is not physically stuck but the laptop thinks it is, rebooting generally solves the problem
You are troubleshooting a computer with a RAID-10 array using four disks. One of the disks fails. What can you do to recover the array?
Replace the failed disk and restore from backup
Rebuild the failed disk and restore from backup
Replace the failed disk and rebuild the array
Replace the failed disk and rebuild the array
RAID-10 is a mirrored striped set. As long as one drive in each mirrored pair is functional (just as in RAID-1), you shouldn’t lose any data. Simply replace the failed disk and rebuild the array
A technician has two hard drives and wants to increase the data access speed of her computer. Which of the following is her best option?
Install both drives and implement RAID-0
Install both drives and implement RAID-1
Install both drives and implement RAID-5
Install both drives and implement RAID-0
RAID-0 is called disk striping. Data can be written to or read from multiple devices at the same time, increasing data access speed. However, if one drive fails, all data is lost. (Back up early and often!) RAID-1 is a mirror set, which does not increase data access but provides fault tolerance. RAID-5 is disk striping with parity, which provides both speed and fault tolerance but requires three hard disks
