mobileDevices_Chapter 1. Laptops, Part 1-Cram quiz

Question 1

What kinds of hard drives are used by laptops?
(Select all that apply.)
A. SSD
B. M.2
C. Magnetic disk
D. DVD-ROM

Answer 1

A, B and C.
Solid state drives (SSDs), M.2 drives,
and magnetic disk drives are all found on laptops.
Which drive the laptop uses will depend on its age
and whether or not it has been upgraded.

DVDROM drives are not hard drives, they are optical
drives, and as of 2015 or so, are not commonly
found on laptops.

Question 2

What is the module format for a stick of SODIMM
DDR4 RAM?
A. 200-pin
B. 204-pin
C. 260-pin
D. 1.8 inch

Answer 2

C. DDR4 SODIMM modules have 260 pins.
DDR (known as DDR1) and DDR2 are 200-pin.
DDR3 is 204-pin. 1/8 inch is the size associated with
smaller hard drives used in some laptops.

Question 3

You just added a second memory module to a
laptop. However, after rebooting the system, the
OS reports the same amount of memory as before.
What should you do next?
A. Replace both memory modules.
B. Run Windows Update.
C. Replace the motherboard.
D. Reseat the laptop memory.

Answer 3

D. The next step you should take is to reseat the
memory.
SODIMMs can be a bit tricky to install.
They must be firmly installed, but you don’t want
to press too hard and damage any components. If
the laptop worked fine before the upgrade, you
shouldn’t have to replace the modules or the
motherboard.

Windows Update will not find
additional RAM.

Question 4

Which of the following are ways that a laptop can
communicate with other computers? (Select all
that apply.)
A. Bluetooth
B. WLAN
C. DC jack
D. Cellular WAN

Answer 4

A, B, and D. Some of the methods that laptops
use to communicate with other computers
include: Bluetooth, WLAN, and cellular WAN
wireless connections, plus wired connections like
Ethernet (RJ45) and for older laptops, dial-up
(RJ11).

The DC jack is the input on the laptop that
accepts power from the AC adapter.

Question 5

Which of the following are possible reasons that a
laptop’s keyboard might fail completely? (Select
the two best answers.)
A. A stuck key.
B. A disconnected ribbon cable.
C. The user spilled coffee on the laptop.
D. The keyboard was disabled in the Device
Manager.

Answer 5

B and C.
A laptop’s keyboard could fail due to a
disconnected or loose keyboard ribbon cable. It
could also fail if a user spilled coffee on the laptop,
by being dropped on the ground, and so on.

One stuck key will not cause the entire keyboard to fail,
and on most laptops,

the keyboard cannot be
disabled in the Device Manager. It can be
uninstalled, but not disabled

Question 6

A user doesn’t see anything on his laptop’s screen.
He tries to use AC power and thinks that the
laptop is not receiving any. Which of the following
are two possible reasons for this? (Select the two
best answers.)
A. He is using an incorrect AC adapter.
B. The AC adapter is not connected to the
laptop.
C. Windows won’t boot.
D. The battery is dead

Answer 6

A and B.
An incorrect adapter will usually not
power a laptop. The adapter used must be exact.
And of course, if the laptop is not plugged in
properly to the adapter, it won’t get power.

Windows doesn’t play into this scenario.

And if
the battery was dead, it could cause the laptop to
not power up, but only if the AC adapter was also
disconnected; the scenario states that the user is
trying to use AC power.

Question 7

One of your customers reports that she walked
away from her laptop for 30 minutes. When she
returned, the display was very dim. She increased
the brightness setting and moved the mouse but to
no effect. What should you do first?
A. Replace the LCD screen.
B. Check the operating system for corruption.
C. Connect an external monitor to verify that
the video card works.
D. Check whether the laptop is now on battery
power.

Answer 7

D.
It could be that the laptop is now on battery
power, which is usually set to a dimmer display
and shorter sleep configuration. This indicates
that the laptop is not getting AC power from the
AC outlet for some reason. The battery power
setting is the first thing you should check;
afterward, start troubleshooting the AC adapter,
cable, AC outlet, and so on. It’s too early to try
replacing the display; try not to replace something
until you have ruled out all other possibilities. A
dim screen is not caused by OS corruption. No
need to plug in an external monitor; you know the
video adapter is working, it’s just dim.

Question 8

Which are the most common laptop hard drive
form factors? (Select two.)
A. 5.1
B. 2.5
C. 7.1
D. 1.8

Answer 8

B and D.
The bulk of the hard drives in laptops
are 2.5 inches wide, though ultra-small laptops
and other small portable devices might use a hard
drive as small as 1.8 inches.

5.1 and 7.1 refer to
speaker surround sound systems, not hard drive
form factors.

Question 9

You are helping a customer with a laptop issue.
The customer said that two days ago the laptop
was accidentally dropped while it was charging.
You observe that the laptop will not turn on and
that it is connected to the correct power adapter.
Which of the following is the most likely cause?
A. The battery
B. The power adapter
C. The hard drive
D. The DC jack
E. The BIOS/UEFI

Answer 9

D.
The DC jack was probably damaged when the
laptop was dropped. That’s because it was plugged
in (charging) and it probably fell on the plug that
connects to the DC jack (which is easily damaged
on many laptops by the way).
The customer
probably used the laptop until the battery became
discharged before noticing that the laptop
wouldn’t take a charge anymore—that’s why it
won’t turn on at all. So the battery is probably not
the issue. A power adapter can be damaged, but
the DC-in jack is more easily damaged. The hard
drive and the BIOS normally will not affect
whether the laptop will turn on