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IT Essentials (Version 7.0) Chapter 7 Exam Answers

1. Dots per inch is used as a measure for which characteristic of a printer?

  • speed
  • quality of printing*
  • reliability
  • cost of ownership
The greater the number of dots per inch, the better the resolution of the picture and therefore the quality of printing.

2. A small company is deciding whether a laser printer should be purchased to replace an inkjet printer. What are two disadvantages of laser printers? (Choose two.)

  • It uses expensive piezoelectric crystals to generate print images.
  • The start-up cost is high.*
  • Toner cartridges are expensive.*
  • It only prints black and white documents.
  • It cannot print in high resolution.
Some disadvantages of a laser printer include:
Cost of start-up is high.
Toner cartridges are expensive.
It requires a high level of maintenance.

3. What term is used to describe dual-sided printing?

  • IR printing
  • buffering
  • spooling
  • duplex printing*
Some printers have the capability to perform duplex printing, which is printing on both sides of the paper. IR printing is a form of wireless printing using infrared technology. Buffering is the process of using printer memory to store print jobs. Spooling puts print jobs into a print queue.

4. How could a user share a locally connected printer with other users on the same network?

  • Install shared PCL drivers.
  • Install a USB hub.
  • Enable print sharing.*
  • Remove the PS drivers.
Enabling print sharing allows a computer to share the printer over the network. Installing a USB hub allows a number of peripheral connections to the same computer. Print drivers do not provide the ability to share printers.

5. A small business has connected several printers to the web using Google Cloud Print. Mobile workers can then print job orders while they are on the road. This is an example of using what type of printer?

  • inkjet
  • laser
  • thermal
  • virtual*
Virtual printing sends the print job to a file (.pm, .pdf, .XPS, or to an image file) or to a remote destination in the cloud. Connecting a printer to the web using an application such as Google Cloud Print allows virtual printing from any location.
6. What is a characteristic of laptop motherboards?

  • Laptop motherboards use the same form factors as desktop motherboards.
  • Laptop motherboards are proprietary.
  • Laptop motherboards use standard form factors.
  • Laptop motherboard components are compatible with desktop motherboards.
Laptop motherboards are proprietary and vary based on the manufacturer. Laptop motherboards and desktop motherboards are designed differently and are not compatible. Components that are used on a desktop motherboard generally cannot be used on a laptop motherboard.

7. What device setting is used to share the cellular WAN connection of a phone in order to allow other devices to connect to the Internet?

  • mobile hotspot
  • airplane mode
  • Wake on LAN
  • Wi-Fi
The mobile hotspot setting is used to share an Internet connection on a mobile phone with other devices.

8. Which two statements are true of a laptop CPU when compared to a desktop CPU? (Choose two.)

  • Laptop CPUs operate at higher clock speeds.
  • Laptop CPUs use smaller cooling devices.
  • Laptop CPUs consume more power.
  • Laptop CPUs are interchangeable with desktop CPUs.
  • Laptop CPUs are designed to produce less heat.
Laptop CPUs are designed to use less power and generate less heat than desktop CPUs.

9. A technician has been asked to decide which laptop components should be cleaned on a monthly basis as part of a maintenance routine. What are two examples of components that should be included? (Choose two.)

  • exterior case
  • keyboard
  • CPU
  • optical drive
  • RAM
Routine preventive maintenance includes the cleaning of parts that can get dirty with everyday use. Internal components are not required to be cleaned as often as external parts. Nonabrasive cleaners should be used to ensure that no damage is caused to laptop components.

10. What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.)

  • cellular
  • Zigbee
  • Wi-Fi
  • Z-Wave
  • GPS
Mobile devices commonly use Wi-Fi and cellular to connect to the internet. The cellular connection uses the cellular data network for a fee. The Wi-Fi connection uses an 802.11 wireless network in the area to connect to the internet.

11. A customer brings a laptop into a computer repair shop. The technician can tell that the laptop is powered on by the power light, but nothing displays on the screen. What are two possible issues that could cause this symptom? (Choose two.)

  • The backlight needs adjusting.
  • The display properties need adjusting.
  • The laptop has gone into sleep mode.
  • The screen cutoff switch needs cleaning or is damaged.
  • The video cable is loose.
A dark screen on a laptop when the display is up and the laptop is powered on could happen because the laptop is in sleep mode. Tap a key to see if that is the case. If that does not work, remove the battery and AC power cord, then reinstall the battery and attach the power cord and try powering on again. The problem could also be a dirty or damaged screen cutoff switch. Use the repair manual to locate and clean or replace the switch.

12. To clean laptops, which two products are recommended? (Choose two.)

  • cotton swabs
  • mild cleaning solution
  • ammonia
  • rubbing alcohol
  • car wax
To clean a laptop computer, mild substances and lint-free cloths are required. Cleaners should be nonabrasive. Otherwise they can damage the laptop components.

13. What are three common input devices found on laptops? (Choose three.)

  • touchpad
  • fingerprint reader
  • web camera
  • external monitor
  • PS/2 keyboard
  • AC power connector
Touchpads, fingerprint readers, and web cameras are common devices on modern laptops. An external monitor is an output device. While a PS/2 keyboard is an input device, it is not commonly used with laptops. An AC power connector provides a method to recharge the battery, but provides no data input to the laptop.?

14. Which type of RAM modules are designed for the space limitations of laptops?

  • SODIMMs
  • SRAM
  • SIMMs
  • DIMMs
SRAM is not used for desktops or laptops as a RAM module, but as L1 cache inside the CPU. SIMMs were replaced by DIMMs on desktops as RAM modules.

15. What is a design consideration for mobile CPUs used in laptops compared with desktop CPUs?

  • They are interchangeable with desktop CPUs.
  • They require smaller cooling mechanisms than desktops do.
  • They operate at higher clock speeds than desktops do.
  • They consume more power than desktops do.
Laptop CPUs are designed to generate less heat and therefore require smaller cooling mechanisms than their desktop counterparts.

16. Which protocol can be used to transfer messages from an email server to an email client?

  • SMTP
  • POP3
  • SNMP
  • HTTP
SMTP is used to send mail from the client to the server but POP3 is used to download mail from the server to the client. HTTP and SNMP are protocols that are unrelated to email.

17. Which laptop component is commonly found in the laptop lid?

  • Wi-Fi antenna
  • SODIMM
  • motherboard
  • power connector
The laptop lid commonly contains the screen, webcam, microphone, and Wi-Fi antenna.

18. What is the purpose of a digitizer in a mobile device?

  • to convert AC to DC
  • to convert analog video signals to digital ones
  • to convert digital music to analog for headphone delivery
  • to convert user touch actions to digital input signals
Digitizers are used in mobile device touchscreens. The digitizer converts user touch actions such as a swipe or tap into an input digital signal.

19. What type of backlight is used in an LED display?

  • LCD
  • LED
  • CCFL
  • light-generating pixels
Light-emitting diode (LED) displays use an LED backlight to illuminate pixels on the screen. In contrast, liquid crystal displays (LCDs) use either an LED or cold cathode fluorescent lamp (CCFL) backlight. Organic LEDs (OLEDs) do not use a backlight.

20. Where is an integrated microphone normally located on a laptop?

  • near the exterior on either side of the keyboard by the plastic frame
  • by the exterior ports
  • in the top of the display
  • under the keyboard near the pointing device or touchpad
A laptop webcam, microphone, and wireless antenna are commonly located in the top of the display.

21. Which ACPI state turns the CPU and RAM off and copies the contents of RAM to a temporary file on the hard disk?

  • S0
  • S1
  • S2
  • S3
  • S4
The Advanced Configuration and Power Interface (ACPI) standard provides support for power states that are very important to mobile devices such as laptops.

S0 – The computer is on and CPU running.

S1 – CPU and RAM have power, but unused devices are powered down.

S2 – CPU is off; RAM is refreshed.

S3 – CPU is off; RAM is set to a slow refresh rate.

S4 – CPU and RAM are off (and RAM contents saved to a temp file).

S5 – The computer is off.

22. What could be used in conjunction with a laptop in order to read flash media?

  • SSD
  • card reader
  • M.2 card
  • SO-DIMM
A flash card reader (sometimes simply called a card reader) accepts a variety of flash card types and commonly attaches to a USB port.

23. Which step would be important in the removal of laptop memory?

  • Align the memory module notch at a 45-degree angle and press to release.
  • Attach an AC adapter before starting the procedure.
  • Press outward on the clips that hold the memory module.
  • Gently press down on the memory module until it releases from the slot.
Memory modules have a clip on either end that holds the SODIMM securely in the slot. Press outward on both clips to release the memory module from the slot.

24. Which laptop component would be considered an FRU?

  • SODIMM
  • display
  • battery
  • external card reader
A field-replaceable unit (FRU), such as a motherboard, display, keyboard, or touchpad, commonly requires some technical skill to install. RAM and a battery are considered to be customer-replaceable units (CRUs).

25. Which characteristic should be considered when a replacement mobile device battery is being selected?

  • It has the same power ratings.
  • It is from the same manufacturer.
  • It provides a warranty.
  • It is a mini-ATX form factor.
A replacement battery must meet or exceed the specifications of the mobile device manufacturer and have the same form factor.

26. Which specialized mobile device is commonly used with VR and AR?

  • fitness monitor
  • smart watch
  • headset
  • e-reader
Virtual reality (VR) provides an immersive experience replacing the real world; augmented reality (AR) uses an overlay of digital elements into the real world. Headsets are commonly used with both VR and AR technologies.

27. Which cellular technology supports speeds up to 20 Gbps?

  • Z-Wave
  • Zigbee
  • 5G
  • 4G
Cellular technology standards are 1G, 2G, 3G, 4G, LTE, and 5G. 5G technology supports speeds up to 20 Gbps and is more efficient.

28. A technician is configuring a device and the device shows that it is pairing. Which mobile technology is being used?

  • Wi-Fi
  • Zigbee
  • Bluetooth
  • tethering
In order to configure two Bluetooth devices, the devices must connect to one another by pairing with one another. This may require a PIN or passkey as part of the process.

29. Which app is used to synchronize data to an iOS-based mobile device?

  • iTunes
  • Auto Sync
  • MIME
  • SMTP
iOS devices can synchronize apps, music, video or books using the iTunes app.

30. A technician has been called on site to help a user who has a laptop problem. At which point should the technician look online for additional possible solutions to a laptop problem?

  • after questioning the user
  • before establishing a theory of probable cause
  • after testing a theory to determine the cause
  • after implementing preventive measures
The steps of the troubleshooting process are as follows:

Identify the problem.

Establish a theory of probable cause.

Test the theory to determine the cause.

Establish a plan of action to resolve the problem and implement the solution.

Verify full system functionality and, if applicable, implement preventive measures.

Document findings, actions, and outcomes.

It is during step 4 that if no solution is achieved in the previous step that a technicians needs further research.

31. An employee wants to include pictures and documents when sending email messages on a mobile device. What technology allows this task to be accomplished?

  • MIME
  • airplane mode
  • cloud service
  • Bluetooth

32. A lawyer wants to give a laptop the ability to connect to the internet through the cellular network. What technology allows this task to be accomplished?

  • mobile hotspot
  • airplane mode
  • cloud service
  • Bluetooth

33. A lawyer wants to enable a smartphone to be used as a hands-free device. What technology allows this task to be accomplished?

  • Bluetooth
  • NFC
  • GPS
  • MIME

34. A doctor wants to use a cell phone for entertainment without connecting to any networks. What technology allows this task to be accomplished?

  • airplane mode
  • NFC
  • GPS
  • MIME

35. A doctor wants to make a backup copy of all of the data on a mobile device. What technology allows this task to be accomplished?

  • cloud service
  • NFC
  • GPS
  • MIME

36. A student wants to make a backup copy of all of the data on a mobile device. What technology allows this task to be accomplished?

  • cloud service
  • NFC
  • GPS
  • MIME

37. A student wants to make mobile phone calls over a wireless data network based on 802.11 technology. What technology allows this task to be accomplished?

  • Wi-Fi calling
  • NFC
  • GPS
  • MIME

38. A salesperson wants to make mobile phone calls over a wireless data network based on 802.11 technology. What technology allows this task to be accomplished?

  • Wi-Fi calling
  • MIME
  • GPS
  • mobile hotspot

39. A salesperson wants to embed the location on a digital photograph to record where it was taken. What technology allows this task to be accomplished?

  • geotagging
  • MIME
  • GPS
  • mobile hotspot

40. A manager wants to have a laptop with touchscreen capabilities. What technology allows this task to be accomplished?

  • digitizer
  • MIME
  • GPS
  • mobile hotspot

41. A student wants to make a backup copy of all of the data on a personal mobile device. What technology, product, or setting allows this task to be accomplished?

  • cloud service
  • digitizer
  • geotagging
  • VPN

42. An employee wants to find an alternate route home because the usual route is blocked by an accident. What technology, product, or setting allows this task to be accomplished?

  • GPS
  • digitizer
  • geotagging
  • IDS

43. A salesperson wants to embed geographical location metadata onto various media such as photographs and videos. What technology, product, or setting allows this task to be accomplished?

  • geotagging
  • digitizer
  • Wi-Fi calling
  • RFID

44. A lawyer wants to give a laptop the ability to access the internet through a cellular network. What technology, product, or setting allows this task to be accomplished?

  • mobile hotspot
  • digitizer
  • geotagging
  • RAID

45. A manager wants to purchase a specialized mobile device for a new VR game. What technology, product, or setting allows this task to be accomplished?

  • headset
  • geotagging
  • Wi-Fi calling
  • IPS

46. An executive wants to enable a cell phone to be used as a hands-free device. What technology, product, or setting allows this task to be accomplished?

  • Bluetooth
  • digitizer
  • geotagging
  • firewall

47. An analyst wants to communicate with the company while exercising and be able to track personal physical activity. What technology, product, or setting allows this task to be accomplished?

  • smartwatch
  • geotagging
  • Wi-Fi calling
  • QoS

48. A student wants to make a backup copy of all of the data on a personal mobile device. What technology, product, or setting allows this task to be accomplished?

  • cloud service
  • NFC
  • GPS
  • virtualization

49. An employee wants to pay for a product just by tapping a smartphone on a sensor. What technology, product, or setting allows this task to be accomplished?

  • NFC
  • GPS
  • MIME
  • IDS

50. A salesperson wants to embed geographical location metadata onto various media such as photographs and videos. What technology, product, or setting allows this task to be accomplished?

  • geotagging
  • NFC
  • GPS
  • RFID

51. A technician working on a cell phone must provide documentation regarding the phone. Where would the technician find the IMSI information?

  • on the phone information label
  • on the SIM card or programmed on the phone
  • under the battery
  • within phone contacts
The international mobile subscriber identity (IMSI) number is a unique mobile device number that is commonly programmed on the subscriber identity module (SIM) card or can be programmed on the phone by some service providers.

52. A technician is troubleshooting a laptop with an unresponsive touchscreen. What could be the probable cause?

  • The screen is dirty.
  • The DC jack is not grounded or is loose.
  • The digitizer is faulty.
  • The battery is not seated properly.

53. A technician is working on a laptop and an error message about decryption appears when opening an email. What is a probable cause for this situation?

  • A digital certificate is missing.
  • The Num Lock key is depressed.
  • The screen refresh rate is too low.
  • The battery is low.

54. An entrepreneur is opening a computer store in a small town and wants to display a few laptops in the store, but is concerned about security. What physical laptop feature might assist in addressing this issue?

  • LoJack
  • security slot
  • IR
  • GPS

55. A technician is working on a laptop and the GPS is not functioning. What is a probable cause for this situation?

  • A service is disabled.
  • Bluetooth is activated.
  • The display setting is incorrect.
  • The battery is low.

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