CSS NC II

Comp. T.I.A. A+ Exam Practice via. mobile app...

Comp. T.I.A. A+ Exam Practice via.
mobile app...

Question ID: 12
Toner particles are attracted towards the
photosensitive drum during which phase of EP
printing?
Answer: Development

The following are the 6 steps in the
ElectroPhotographic (EP) print process of
Laser Printer:
1. Cleaning: Cleaning the photosensitive
drum includes residual toner left on the
drum and removing electrical charges left
out on the drum. The physical cleaning is
done with a rubber blade and the electrical
charge cleaning is done with erasure lamps.
2. Charging: The next step in printing, is to
charge the photo sensitive drum with high
negative charge, this is done with the help
of a corona wire.
3. Writing: A laser (type 3) sweeps the entire
length of the drum, creating the static
image of the matter to be printed. The
places where the laser travel, the highly
charges are neutralized. The places where
the laser travel, the highly charges are
neutralized. Other places of the drum, it
remains highly negatively charged.
4. Developing: Now, the drum gets in close
proximity to the toner. Because the toner is
negatively charges, it gets attracted to the
areas where the drum is neutral. It will not
be attracted to the places where the drum
is highly negatively charged. Thus the
image of the page to be printed formed on
the photosensitive drum.
5. Transferring: Now, the toner on the drum gets attracted toward the paper, by using highly positive charges developed on the surface of the paper. The “transfer corona” is used to generate highly positive charge on the paper surface and to attract the toner from the drum. Thus the image of the page to be printed formed on the paper. But, still, the toner is loose and can get easily smeared.
6. Fusing: In order to permanently bond the toner particles to the paper, the paper is passed through rollers. One of the rollers, the non-stick roller is heated by a high intensity lamp, generating the heat
necessary to bond the toner to the surface
of the paper.

Question ID: 6
A client wants to consolidate file server, print
server, and exchange server requirements in
to one single physical server. Which of the
following would be the MOST important
requirements for stable operation?
Answer: Server hardware
When combining various servers into a single
physical box, it is important to consider the
server hardware requirements, such as CPU,
Memory, Power Supply, Expansion Slots, Hard
Disk Capacity, etc.

Question ID: 19
Which of the following is most susceptible to
external EMI?
Answer: Twisted Pair (TP) cable
Thin co-axial and thick co-axial cables have
conductive grounding sheath surrounding the
center conductor. Therefore, the
electromagnetic interference (EMI) is
significantly less.
Fiber optic cabling is immune to crosstalk and
other electrical interference because optical
fiber does not conduct electricity and uses
light signals in a glass fiber, rather than
electrical signals along a metallic conductor to
transmit data. So it cannot produce a
magnetic field and thus is immune to EMI.
{*In twisted pair cable, the noise introduced
into the twisted pair wire is canceled as the
electrical signals pass through the wire.
However, it is not possible to reduce the
electrical interference totally in a TP wire. }

Question ID: 33
Which protocol can be used to download your
mail over the Internet to your desktop.
Assume that your desktop is running a mail
client software as Outlook Express?
Answer: POP3
SMTP is used to upload mail to the mail
server. POP3 is used for downloading mail
from a mail server to a client machine
running POP3 client.
Question ID: 46
Which type of connector is commonly used for
connecting UTP Ethernet cable?
Answer: RJ-45
RJ-11: These connectors are used to link
modem/phone to the phone line. They have
only two pins that get into the modem.
RJ-14: RJ-14 connectors are dual-line phone
jacks that can accommodate up to two phone
lines.
RJ-45: RJ-45 cable is widely used for attaching
UTP cable in LAN environment. These
connectors have eight pins.
Question ID: 7
A technician has replaced the motherboard in
a laptop. However, after the repair, the
wireless connectivity is found to be
intermittent. What is the most likely problem?
Answer: The radio antenna connection inside
the laptop may need to be checked.
You need to check the antenna connectivity.
As said that the wireless connectivity is
intermittant. Therefore, other options may be
ruled.
Question ID: 20
When you are browsing web pages on the
Internet from your desktop computer, which
two of the following protocols are most likely
being used?
Answer: HTTP, HTTPS
Question ID: 34
Which protocol can be used to upload your
mail over the Internet to a server, running
mail server software?
Answer: SMTP
SMTP can be used to upload mail over
Internet to a Mail server. Note that POP3 is
used to read email.
Question ID: 47
An unshielded cable offers better resistance to
external noise interference compared to
shielded cables.
Answer: FALSE.
Shielded cables reduce electrical noise and
electromagnetic radiation. In other words,
they help to keep the signal steady, and
reduce interference with other devices.
Question ID: 1
Identify the connector shown in the figure.
Answer: IEEE 1394
The IEEE 1394 interface is a serial bus
interface standard for high-speed
communications, frequently used by personal
computers as well as in digital audio and
digital video. The interface is also known by
the brand names of FireWire (Apple,) i.LINK
(Sony), and Lynx (Texas Instruments.)
There are two prominent versions of this
standard; IEEE1394a, and IEEE1394b.
IEEE 1394, also called FireWire 400 is widely
used for formats such as DV, DVCAM,
DVCPRO, and HDV. Firewire provides an easy
way to capture and output high-quality digital
video using a variety of camcorders and decks
and is capable of data rates as high as 400
Mbps. Standard FireWire cables can be up to
4.5 meters long. 16 cables can be daisy
chained using active repeater offering a total
cable length of 72 meters. There are two
kinds of FireWire connectors: a 4-pin
connector (typically found on video
equipment such as comcorders or decks) and
a 6-pin connector (used for computer
equipment.) However, some newer video
equipment uses the 6-pin connector The 6-
conductor powered connector, adds power
output to support external devices.
IEEE 1394b, also called FireWire 800, offers
higher bandwidths capable of data transfer
speeds of up to 800 Mbit/s. In fact, the
FireWire roadmap outlined in the IEEE 1394b
standard will eventually take the theoretical
bit rate to 1600 Mbps and then up to a
staggering 3200 Mbps. FireWire 800 is also
capable of supporting cable distances of up to
100 meters. 9-pin-to-4-pin and 9-pin-to-6-pin
FireWire 400 to FireWire 800 cables are
available to connect older devices to a
FireWire 800 interface.
           Question ID: 28
What is the storage capacity offered by a
single side, single layer DVD?
Answer: 4.37 GB
DVD (stands for Digital Versatile Disk) comes
in single layer (SL) or dual layer (DL.) They
are also distinguished as single sided (SS) or
double sided (DS.) There are  four possible
combinations:
DVD-S (12 cm., SS/SL): 4.37 GB capacity
DVD-9 (12 cm., SS/DL): 7.95 GB capacity
DVD-10 (12 cm., DS/SL): 8.74 GB capacity
DVD-18 (12 cm., DS/DL): 15.90 GB capacity
Further, DVD-S stores about two hours of
video, where as DVD-18 can store up to eight
hours video.
Question ID: 41
Your client works for an animation company
and needs portable storage, which will allow
him to transport work back and forth from
home. Taking the client’s sotrage and
bandwidth requirements into consideration,
which of the following would BEST suit the
users needs?
Answer: An external hard drive connected via
eSATA.
External Serial Advanced Technology
Attachment or eSATA is an external interface
for SATA technologies.
Question ID: 22
You are testing a fuse with a multimeter. For a
good fuse what should be the ohmic loss?
Answer: Close to 0 ohms.
Question ID: 35
Hard disks usually contain how many bytes
per sector?
Answer: 512
Question ID: 49
Which of the following is true of Torx
screwdriver?
Answer: It has a star tip or head.
Question ID: 2 {Drag and Drop}
NBTSTAT--This utility displays current
NetBIOS over TCP/IP connections, and display
NetBIOS...
NETSTAT--Displays protocol statistics and
current TCP/IP connections since the server
was...
ROUTE--Used to display and edit static routing
tables.
NSLOOKUP--This utility enables users to
interact with DNS server and display resource.
IPCONFIG--Used to display Windows IP
configuration.
TRACERT--Used to determine which route a
packet takes to reach its destination from...
Question ID: 17
With respect to a notebook computer, a
docking station allows the user to install a
monitor, keyboard, mouse and other
peripherals on the docking station itself for
ease of use.
Answer: TRUE
Question ID: 10
802.11 a     --> Up to 115 ft. at 5.4 GHz
802.11g     --> Up to 125 ft. at 2.4 GHz
802.11n    --> Up to 380 ft. at 2.4 GHz
Bluetooth Class 1  -->  Up to 30 ft. at 2.4 GHz