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Exam Code: FC0-U51
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Exam Code: LX0-104
Exam Name: CompTIA Linux+ [Powered by LPI] - Exam 2
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NO.1 Which of the following indicates the subjects that can use them?
A. Access control list
B. Audit policy
C. Intrusion detection system
D. Single sign-on
Answer: A
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Explanation:
Access control list indicates what subjects can use them. Access Control List (ACL) is the most
commonly used object in Cisco IOS. It filters packets or network traffic by controlling whether routed
packets are forwarded or blocked at the router's interfaces. According to the criteria specified within
the access lists, router determines whether the packets to be forwarded or dropped. Access control
list criteria could be the source or destination address of the traffic or other information. The types of
Cisco ACLs are Standard IP, Extended IP, IPX, Appletalk, etc. Answer option B is incorrect. Audit policy
defines the type of security events that will be logged for the servers of a domain or for an individual
computer. It does not indicate what subjects can use them. Answer option C is incorrect. An Intrusion
detection system (IDS) is software and/or hardware designed to detect unwanted attempts at
accessing, manipulating, and/or disabling of computer systems, mainly through a network, such as
the Internet. These attempts may take the form of attacks, as examples, by crackers, malware and/or
disgruntled employees. An IDS cannot directly detect attacks within properly encrypted traffic. An
intrusion detection system is used to detect several types of malicious behaviors that can
compromise the security and trust of a computer system. This includes network attacks against
vulnerable services, data driven attacks on applications, host based attacks such as privilege
escalation, unauthorized logins and access to sensitive files, and malware (viruses, trojan horses, and
worms). Answer option D is incorrect. Single sign-on is a process that enables a user with a domain
account to log on to a network once, using a password or smart card, and to gain access to multiple
computers in the domain without being prompted to log in again.
Reference: "http://en.wikipedia.org/wiki/Access_control_list"
NO.2 A customer has come to you wanting upgrade the video card in his laptop. What would you
recommend?
A. A PCMCIA card
B. A PCI Express card
C. Upgrade is not possible
D. An AGP Card
Answer: C
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Explanation:
Video cards in laptops are built into the motherboard and cannot be upgraded.
Answer option D is incorrect. An AGP card is an older type of video card for PC's.
What is AGP (Accelerated Graphics Port)? Hide
AGP is a high speed 32-bit bus designed for high performance graphics and video support.
It allows a video card to have direct access to a computer's RAM, which enables fast video
performance. AGP provides a bandwidth of up to 2,133 MB/second.
Answer options B and A are incorrect. Both are valid expansion cards for laptops, however
the laptop video card is not on an expansion slot.
Reference: http://www.tomshardware.com/forum/84345-33-video-card-laptop
NO.3 HOTSPOT
Identify the Ethernet port in the image given below.
Answer:
NO.4 Which of the following internal busses are used for expansion cards?
Each correct answer represents a complete solution. Choose all that apply.
A. PCI
B. SATA
C. PCI Express
D. ISA
Answer: A,C,D
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Explanation:
The following internal busses are used for expansion cards: PCI Express PCI ISA What is PCI Express
(PCIe)? PCI Express (PCIe), also known as 3rd Generation I/O (3GIO), is a type of computer bus. It is a
new I/O bus technology that has more bandwidth than PCI and AGP slots. It uses two low voltage
differential pairs, at 2.5Gb/s in each direction. It is designed to replace PCI and AGP expansion slots.
The bus is available in several different bus widths: x1, x2, x4, x8, x12, x16, and x32. PCIe is able to
transfer data in both directions at a time. PCIe hardware will work on operating systems that support
PCI. What is a PCI bus? Peripheral Component Interconnect (PCI) is a high-performance, 32-bit or 64-
bit bus designed to be used with devices that have high bandwidth requirements, such as the display
subsystem. What is an ISA bus? Industry Standard Architecture (ISA) is an 8-bit expansion bus that
provides an interface from devices on expansion cards to the computer's internal bus. A later version
of ISA bus comes with a 16-bit expansion slot. Answer option B is incorrect. SATA is used for hard disk
drive and CD/DVD drives. What is SATA? The Serial ATA (SATA) computer bus is a storage-interface
for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives.
SATA offers several compelling advantages over the older parallel ATA (PATA) interface, such as
reduced cable-bulk and cost, faster and more efficient data transfer, full duplex, and hot swapping. It
is designed to replace the older ATA (AT Attachment) standard (Parallel ATA). All SATA devices
support hot plugging and hot swapping. SATA supports Native Command Queuing (NCQ) for
enhanced performance.
Reference: "http://en.wikipedia.org/wiki/Computer_hardware"
NO.5 Your customer is using Windows Vista and complains about the quality of picture he is getting
on his monitor. You find that you cannot adjust the refresh rate or the resolution. What is the most
likely cause?
A. The video card is not recognized by Windows.
B. The monitor is not compatible with the video card.
C. The video card has failed.
D. The video card does not have enough video RAM.
Answer: A
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Explanation:
When Windows does not recognize the video card, it gives a set of simplified default
settings for refresh rate, resolution, etc.
Answer option B is incorrect. As long as the monitor can plug into the card, it is compatible.
Answer option C is incorrect. If the video card had failed, there would have been no picture
at all on the monitor screen.
Answer option D is incorrect. Lack of sufficient video RAM would just prevent certain
graphics from being displayed.
Reference: http://www.technibble.com/troubleshooting-video-cards-problems-and-solutions/
NO.6 Which of the following 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?
A. Communication and Networking Riser (CNR)
B. Audio/modem riser
C. Riser card
D. Secure Digital (SD) card
Answer: C
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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. Answer
option B is incorrect. The audio/modem riser (AMR), also known as an AMR slot, is an expansion slot.
It is found on the motherboards of some Pentium III, Pentium 4, and Athlon personal computers. It
was designed by Intel to interface with chipsets and provide analog functionality, such as sound cards
and modems, on an expansion card. It has two rows of 23 pins each, making a total of 46 pins.
Answer option A is incorrect. Communication and Networking Riser (CNR) is a hardware device
developed by Intel. It plugs into the motherboard and holds chips for the functioning of devices such
as modems and audio devices. It supports V.90 analog modem, multichannel audio, phone-line-based
networking, and 10/100 Ethernet-based networking. CNR also minimizes electrical noise interference
through the physical separation of noise-sensitive elements from the motherboard's communication
systems. Answer option D is incorrect. Secure Digital (SD) card is a non-volatile memory card format
used in portable devices such as mobile phones, digital cameras, and handheld computers. SD cards
are based on the older MultiMediaCard (MMC) format, but they are a little thicker than MMC cards.
Generally an SD card offers a write-protect switch on its side. SD cards generally measure 32 mm x 24
mm x 2.1 mm, but they can be as thin as 1.4 mm. The devices that have SD card slots can use the
thinner MMC cards, but the standard SD cards will not fit into the thinner MMC slots. Some SD cards
are also available with a USB connector. SD card readers allow SD cards to be accessed via many
connectivity ports such as USB, FireWire, and the common parallel port.
Reference: "http://en.wikipedia.org/wiki/Riser_card"
NO.7 Which of the following types of parental controls is used to limit access to the Internet
contents?
A. Content filter control
B. Bandwidth control
C. Usage management tool
D. Monitoring control
Answer: A
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Explanation:
Content filter control is a type of parental control that is used to limit access to the Internet content.
Answer option D is incorrect. Monitoring control is a type of parental control that is used to track
locations and activities when using the device. Answer option C is incorrect. Usage management tool
is a type of parental control that allows parents to enforce learning time into child computing time.
Answer option B is incorrect. There is no parental control such as bandwidth control.
Reference: "http://en.wikipedia.org/wiki/Parental_controls "
NO.8 Which of the following is the default resolution for a VGA monitor?
A. 800x600-pixels
B. 1024x768-pixels
C. 320x200-pixels
D. 640x480-pixels
Answer: D
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Explanation:
Video Graphic Array (VGA) monitors have a default resolution of 640x480-pixels.
This is known as standard VGA resolution. Although computers typically use this resolution by
default, you can get better resolution using a specifically designed video driver for the installed
adapter. Answer options A, C, and B are incorrect. Super VGA monitors have a default resolution of
800x600- pixels. A VGA or SVGA connector is a 15-pin, three rows, female connector, on the back of a
PC used for connecting monitors.
Reference: TechNet, Contents: "Chapter 21 Multimedia"
