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QUESTION NO: 1
Which of the following statements about a riser card is true?
A. It is used to connect a computer in a network.
B. It is used to connect extra microprocessors.
C. It provides extra memory for expansion cards.
D. It is used to extend slots for expansion cards.
Answer: D

Explanation:
Riser card is a circuit board that is used to extend slots for expansion cards and provides the ability to
connect additional expansion cards to the computer. These cards are used with LPX motherboards.
With the introduction of ATX motherboards, riser cards are rarely used. In ATX motherboards, the
expansion cards connect directly to the computer motherboard instead of using riser cards. What is
LPX? LPX is a motherboard form or that is used in some desktop computers. In LPX motherboards,
expansion cards are inserted into a riser card that contains several slots. Unlike other common form
ors such as AT and ATX, the expansion cards in LPX are not vertical, but parallel to the
motherboard. The LPX form or is designed for smaller cases, and usually it is used for connecting
two or three expansion cards.

QUESTION NO: 2
Which of the following devices is used for accessing the data on Secure Digital (SD) card, MMC
card, and CompactFlash (CF)?

A. E-book reader
B. Memory card reader
C. Smart card reader
D. Barcode reader
Answer: B
Explanation:
A memory card reader is a device, typically having a USB interface, for accessing the data on a
memory card such as a CompactFlash (CF),
Secure Digital (SD) or MultiMediaCard (MMC).
Answer option C is incorrect. Smart card readers are used to read smart cards. It is used as a
communications medium between the smart card and a host.
Answer option D is incorrect. A barcode reader (or barcode scanner) is an electronic device for
reading printed barcodes.
Answer option A is incorrect. There is no such device as e-book reader.

QUESTION NO: 3
Which of the following can be used to accomplish authentication?
Each correct answer represents a complete solution. Choose all that apply.
A. Biometrics
B. Encryption
C. Password
D. Token
Answer: A,C,D

Explanation:
The following can be used to accomplish authentication.
1        Password
2       Biometrics
3         Token
A password is a secret word or string of characters that is used for authentication, to prove
identity, or gain access to a resource.
What is authentication?
Authentication is a process of verifying the identity of a person, network host, or system process.
The authentication process compares the provided credentials with the credentials stored in the
database of an authentication server.
What is biometrics?
Biometrics is a method of authentication that uses physical characteristics, such as fingerprints,
scars, retinal patterns, and other forms of biophysical qualities to identify a user. Nowadays, the
usage of biometric devices such as hand scanners and retinal scanners is becoming more
common in the business environment. A token may be a physical device or software token that an
authorized user of computer services is given to ease authentication.
Answer option B is incorrect. Encryption can be used to accomplish security and not
authentication.

QUESTION NO: 4
Which of the following devices can cause great harm to one's life with lethal electric shocks?
Each correct answer represents a complete solution. Choose two.

A. SMPS
B. Floppy drive
C. Monitor
D. Keyboard.

Answer: A,C
Explanation:
A computer monitor and SMPS are at high voltage. Therefore, these devices can be fatal. They
usually have large amount of electric charge stored in capacitors for days after they have been
unplugged from power source.
What is SMPS?
Switch Mode Power Supply (SMPS) is a device that converts raw input power to controlled voltage
and current for the operation of electronic equipment. SMPS uses switches for high efficiency.
Answer options D and B are incorrect. Keyboards and floppy drives do not store electric charge.
Therefore, they cannot cause lethal electric shocks.

QUESTION NO: 5
Which of the following ports on a computer are used to connect a keyboard?
Each correct answer represents a complete solution. Choose two.
A. USB
B. DB-25
C. PS/2
D. DB-9
Answer: A,C
Explanation:
The PS/2 and USB ports on a computer are used to connect a keyboard. What is USB? Universal
Serial Bus (USB) is a high speed bus standard developed by Compaq, IBM, DEC, Intel, Microsoft,
NEC, and Northern Telecom. It provides the Plug and Play capability of Windows to external
hardware devices. USB supports hot plugging, which means that a USB device can be installed or
removed while the computer is running. A single USB port can be used to connect up to 127
peripheral devices, such as CD-ROM drives, tape drives, keyboards, scanners etc. USB 1.1 has a
maximum data transfer rate of 12 Mbps, whereas USB 2.0 has a maximum data transfer rate of 480
Mbps. USB 2.0 is fully backward compatible with USB 1.1. Answer options D and B are incorrect.
The DB-9 and DB-25 port types on the computer are used as serial ports. A DB-9 male type port has
9 pins, whereas a DB-25 male type port has 25 pins. What is a serial port?
Serial port is the primary means for connecting modems and mouse to a computer. There are two
types of serial port connectors, 9-pin and 25-pin. The word serial refers to the data is sent in series,
one bit at a time, over a single wire. This design is significantly slower than sending 8 bits at a time
via a parallel channel, but serial signals can travel much farther without degradation.

QUESTION NO: 6
Which of the following features are related to power management?
Each correct answer represents a complete solution. Choose two.
A. Hot plugging
B. Hibernate mode
C. Standby mode
D. Safe mode
Answer: B,C

Explanation:
The Hibernate mode and Standby mode are features related to power management. Hibernate mode
is a power saving feature for computers. In hibernate mode, the current state of a computer is saved
to the hard disk, and the computer shuts down. A user will have to power on the computer to restore
the previous settings. When a computer resumes from hibernate mode, it reads the saved settings
from the disk and restores the system state as it was before it entered hibernate mode. By default,
hibernate mode is disabled. If a computer is not ACPI-enabled or APM-enabled, users will have to
enter hibernate mode manually. Users cannot set the computer to automatically hibernate after a
certain time. With ACPI-enabled and APM-enabled computers, users are able to set hibernate mode
automatically. The standby mode is a power saving feature for computers. In this mode, a computer
does not shut down completely. The computer goes to low power state and, as a result, it consumes
less power. When the computer resumes from the standby mode, full power is restored to its devices.
During the standby mode, if the power supply is disconnected or interrupted, data might be lost. The
standby mode is available automatically on ACPI-enabled or APM-enabled computers. Users do not