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2021 Oct a+ certification practice test 220-801:
Q171. - (Topic 3)
Which of the following laptop components provides direct electrical supply to illuminate the screen’s image?
A. DC jack
B. CMOS battery
C. Inverter
D. Backlight
Answer: C
Q172. - (Topic 4)
The wires that run along the side of an LCD panel in the display of a laptop are used for which of the following functions?
A. Prevent EMI from nearby electronics
B. Install additional backlights for the display
C. Wireless network card antenna leads
D. Connections for memory card reader in the display
Answer: C
Q173. - (Topic 5)
Joe, a technician, wants to create a PAN with his smart phone and laptop. Which of the following functions must be enabled on the laptop?
A. ICS
B. Virtualization
C. Bluetooth
D. Wireless
Answer: C
Q174. - (Topic 5)
Which of the following panel types would allow for the THINNEST possible display monitor?
A. LED
B. CRT
C. DLP
D. Plasma
Answer: A
Explanation:
http://electronics.howstuffworks.com/difference-between-lcd-and-led.htm
Q175. - (Topic 4)
A user has a wireless home office and would like to add file storage and print server to the domain. The user has only enough funds to upgrade one feature on the server. Which of the following would be the MOST beneficial upgrade for this PC role?
A. Add a second multi-core processor for faster computations
B. Add a Gigabit Ethernet card for fast file transfers.
C. Replace Windows XP Professional with the newer Windows 7 Home Premium
D. Add an additional hard drive to create a RAID 0
Answer: D
Abreast of the times 220-801 acronyms:
Q176. - (Topic 4)
Which of the following video interfaces uses the smallest footprint to connect multiple monitors given compatible hardware?
A. VGA
B. DisplayPort
C. HDMI
D. DVI
Answer: B
Q177. - (Topic 6)
A technician is asked to recommend hardware for a new computer for a graphic artist company that regularly uses 3-D animation software. Which of the following components should be chosen to BEST meet the customer's needs?
A. Specialized video card
B. Multi-core processor
C. TV tuner/recorder
D. Tape backup drive
Answer: A
Explanation:
A high end special video card is needed to render 3D animation. Without a good video card, a graphic artist cannot work properly on a computer creating 3D animation.
Q178. - (Topic 6)
Which of the following socket types is for an AMD CPU?
A. 940
B. 775
C. 1155
D. 1366
Answer: A
Explanation:
http://en.wikipedia.org/wiki/Socket_940
Q179. - (Topic 7)
Which of the following wireless networking standards operates at the SHORTEST distance?
A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11n
Answer: A
Explanation:
http://compnetworking.about.com/cs/wirelessproducts/f/wifirange.htm
Q180. - (Topic 2)
After making repairs to a user’s system, which of the following actions should a technician take?
A. Close the case and wait for the customer to call again in the future
B. Leave the case open in the event a similar issue arises
C. Contact the customer a few days later to determine the state of repairs
D. Wait to update service records until the repair is confirmed
Answer: C