CompTIA FC0-U41 - CompTIA Strata IT Fundamentals Exam

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.

Answer : B

Explanation:
The Lithium Ion battery isthe most common laptop battery found today.
Answer option D is incorrect. Nickel Cadmium batteries are legacy batteries and not often found today.
Answer option C is incorrect. Brand names are not relevant to this question and Energizer does not make laptop batteries.
Answer option A is incorrect. The Nickel Metal Hydroxide battery was an early replacement for NiCad, but is no longer used.
Reference. http.//www.dummies.com/how-to/content/types-of-laptop-batteries.navId-
323015.html

Answer : A

Explanation:
If the power cable runs along with the computer network cable, radiation from the power cable, known as electromagnetic interference (EMI) , may be inducted into the computer network cable affecting the signals that pass through it. Answer option Bis incorrect. ESD stands for Electrostatic discharge. The static electricity that we generate everyday creates
ESD. If you walk across a carpet and touch someone, you experience a mild shock.
Electrostatic discharge occurs when the electrostatic charge istransferred from one charged entity to another entity sensitive to that charge.To minimize Electrostatic discharge
(ESD) problems, consider wearing a wrist strap when you are working with computer components. A wrist strap is a wire with a watchband-stylestrap at one end and a plug or clip on the other end. The wrist strap plug or clip is connected to the ground or to the piece of equipment being worked on.
Answer option D is incorrect. Surge is a momentary voltage variation (+/- 170 volts) that lasts fromone microsecond to a few milliseconds. Turning on and off large inductive electrical devices such as air conditioners and refrigerators can cause a surge. Answer option C is incorrect. Broadcast storm is a situation in which one or more network devices send jabber packets constantly, thereby increasing the traffic. A faulty network interface card (NIC) that sends jabber packets can be detected by the network monitor software. A faulty NIC can cause a broadcast storm on the network. Broadcast storms causedby a faulty network interface card can be resolved by disabling or replacing the card.

Answer : B

Explanation:
64 Megabytes is the minimum. Now, this may seem odd as many modern machines come with 1, 2, or even 4 gigabytes of RAM. Remember, we are asking in this question what the minimum amount of RAM is. You should absolutely consider getting more RAM.
What are theminimum requirements for installing Windows XP Professional?
The minimum requirements for installing Windows XP Professional are:
Processor: Pentium II processor running at 233MHz or faster.
RAM: 64MB minimum. Microsoft recommends 128MB RAM.
Hard DiskDrive: 1.5GB of free hard disk space for boot partition. More space will be needed if installing over a network.
Video Card and Monitor: Running at VGA resolution or higher. Network Card: PXE-enabled or a network boot disk and network card for network-based installation. Other Appliances:
CD-ROM or DVD drive for CD-ROM-based and DVD-based installations, Keyboard and pointing device. Answer options D, A, and C are all incorrect. Obviously more RAM is always a good idea, but these numbers are not the minimumrequirements.
Reference: http://www.microsoft.com/windowsxp/sysreqs/pro.mspx

Answer : D

Explanation:
The /o switch of the XCOPY command copies file ownerships and NTFS permissions onfiles while copying them.
In NTFS file system, when a new file is created, it inherits permissions from its new parent directory. This might cause security issues when a user copies files. In this case users who did not have access to the files might gainaccess on them. Therefore, in order to retain original file permissions, users have to use the XCOPY /o command.
Answer option B is incorrect. The /s switch of the XCOPY command is used to copy directories and subdirectories except empty directories.
Answer option A is incorrect. The /p switch of the XCOPY command prompts the user before creating each destination file.
Answer option C is incorrect. The /r switch of the XCOPY command overwrites Read only files while copying data.
Reference. "http.//www.computerhope.com/cdhlp.htm"