IT Essentials (Version 8.0) Chapter 7 Exam Answers ITE v8.0

IT Essentials (Version 8.0) – IT Essentials 8.0 Chapter 7 Exam Answers

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

5G
Zigbee
4G
Z-Wave

Explanation: Cellular technology standards are 1G, 2G, 3G, 4G, LTE, and 5G. 5G technology supports speeds up to 20 Gbps and is more efficient.

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

motherboard
power connector
Wi-Fi antenna
SODIMM

Explanation: The laptop lid commonly contains the screen, webcam, microphone, and Wi-Fi antenna.

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

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

4. What is a design consideration for mobile CPUs used in laptops compared 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.
They are interchangeable with desktop CPUs.

Explanation: Laptop CPUs are designed to generate less heat and therefore require smaller cooling mechanisms than their desktop counterparts.

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

Wi-Fi
cellular
Z-Wave
GPS
Zigbee

Explanation: 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.

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

LED
LCD
light-generating pixels
CCFL

Explanation: 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.

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

external monitor
PS/2 keyboard
web camera
fingerprint reader
touchpad
AC power connector

Explanation: 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.?

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

M.2 card
SSD
card reader
SO-DIMM

Explanation: A flash card reader (sometimes simply called a card reader) accepts a variety of flash card types and commonly attaches to a USB port.

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

e-reader
headset
fitness monitor
smart watch

Explanation: 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.

10. Which laptop component would be considered an FRU?

battery
display
SODIMM
external card reader

Explanation: 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).

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

SMTP
SNMP
POP3
HTTP

Explanation: 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.

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

Explanation: 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.

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

rubbing alcohol
car wax
cotton swabs
ammonia
mild cleaning solution

Explanation: To clean a laptop computer, mild substances and lint-free cloths are required. Cleaners should be nonabrasive. Otherwise they can damage the laptop components.

14. 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 user touch actions to digital input signals
to convert digital music to analog for headphone delivery

Explanation: Digitizers are used in mobile device touchscreens. The digitizer converts user touch actions such as a swipe or tap into an input digital signal.

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

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

Explanation: Laptop CPUs are designed to use less power and generate less heat than desktop CPUs.

16. What is a characteristic of laptop motherboards?

Laptop motherboards are proprietary.
Laptop motherboard components are compatible with desktop motherboards.
Laptop motherboards use the same form factors as desktop motherboards.
Laptop motherboards use standard form factors.

Explanation: 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.

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

Bluetooth
Wi-Fi
tethering
Zigbee

Explanation: 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.

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

Auto Sync
iTunes
MIME
SMTP

Explanation: iOS devices can synchronize apps, music, video or books using the iTunes app.

19. 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
under the battery
on the SIM card or programmed on the phone
within phone contacts

Explanation: 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.

20. 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.)

CPU
keyboard
optical drive
exterior case
RAM

Explanation: 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.

21. 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?

NFC
GPS
RFID
geotagging

22. 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 battery is low.
The display setting is incorrect.

23. 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?

NFC
GPS
cloud service
MIME

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

SRAM
SIMMs
DIMMs
SODIMMs

Explanation: 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.

25. 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?

airplane mode
Wake on LAN
mobile hotspot
Wi-Fi

Explanation: The mobile hotspot setting is used to share an Internet connection on a mobile phone with other devices.

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

in the top of the display
near the exterior on either side of the keyboard by the plastic frame
by the exterior ports
under the keyboard near the pointing device or touchpad

Explanation: A laptop webcam, microphone, and wireless antenna are commonly located in the top of the display.

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

It is from the same manufacturer.
It provides a warranty.
It is a mini-ATX form factor.
It has the same power ratings.

Explanation: A replacement battery must meet or exceed the specifications of the mobile device manufacturer and have the same form factor.

28. 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

29. 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
after testing a theory to determine the cause
before establishing a theory of probable cause
after implementing preventive measures

Explanation: 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.

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

MIME
GPS
mobile hotspot
digitizer

31. 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?

digitizer
Bluetooth
geotagging
firewall

32. 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?

digitizer
geotagging
cloud service
VPN

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

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

Case 2:

The battery is low.
Wi-Fi is turned off.
The display setting is incorrect.
Airplane mode is turned on.

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

airplane mode
cloud service
MIME
Bluetooth

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

NFC
GPS
MIME
Bluetooth

36. 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?

GPS
MIME
NFC
IDS

Explanation: Near field communication (NFC) allows short range communications between devices such as mobile phones and payment terminals. It is similar to RFID but has an extremely limited range useful for transferring sensitive information.

37. 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?

NFC
cloud service
GPS
MIME

38. 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?

MIME
GPS
mobile hotspot
geotagging

39. 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?

digitizer
geotagging
GPS
IDS

40. 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?

digitizer
geotagging
RAID
mobile hotspot

41. 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?

geotagging
Wi-Fi calling
headset
IPS

42. 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?

airplane mode
cloud service
Bluetooth
mobile hotspot

43. 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?

NFC
GPS
Wi-Fi calling
MIME

44. 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 laptop has gone into sleep mode.
The display properties need adjusting.
The screen cutoff switch needs cleaning or is damaged.
The video cable is loose.

Explanation: 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.

45. 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?

geotagging
Wi-Fi calling
smartwatch
QoS

46. 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?

NFC
GPS
virtualization
cloud service

47. 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.
Press outward on the clips that hold the memory module.
Attach an AC adapter before starting the procedure.
Gently press down on the memory module until it releases from the slot.

Explanation: 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.

48. A technician is working on a laptop and an app is not loading. What is a probable cause for this situation?

More than one app is open simultaneously
The battery is low
An app needs to be restarted
The display setting is incorrect

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

NFC
GPS
airplane mode
MIME

50. 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?

The battery is low.
The Num Lock key is depressed.
The screen resolution needs recalibration.
The security certificate is not recognized.

51. 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?