CISCO IT Essentials Chapter 02 (2007 - 2012)
CISCO IT Essentials Chapter 02 (2007 - 2012)
Want to test your knowledge before the big exam, but have no were to turn? Whether revision, test or study, this quiz should help you prepare for the chapter 2 exam.
This test might be out-dated by the end of 2012 - mid-2013. This test is for personal use only and is in no way necessary, nor are you gauranteed to pass from taking the test. It's intended for those he are doubtful, and wish to make sure they are prepared for the chapter exam.
For personal use only.
- 1.
Which two devices commonly affect wireless LAN? (Choose two.)
- A.
Blue-ray players;
- B.
Home theaters;
- C.
Wireless phones;
- D.
Microwaves;
- E.
Incandescent light bulbs;
- F.
External hard drive.
Correct Answer(s)
C. Wireless phones;
D. Microwaves;Explanation
Wireless phones and microwaves commonly affect wireless LAN. Wireless phones can interfere with the Wi-Fi signal due to the use of similar frequencies. Microwaves emit electromagnetic waves that can disrupt the Wi-Fi signal when in use. The other devices listed, such as Blu-ray players, home theaters, incandescent light bulbs, and external hard drives, do not typically have a significant impact on wireless LAN.Rate this question:
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- 2.
A technician has a room of computers wich are running very hot. The technician discovers that the heat sinks in the computers are very dusty. What should the technician use to clean the heat sinks?
- A.
Mild cleaning solution;
- B.
Lint free cloth;
- C.
Isoprpyl alcohol;
- D.
Compressed air.
Correct Answer
D. Compressed air.Explanation
The technician should use compressed air to clean the heat sinks. Compressed air is an effective tool for removing dust and debris from electronic components without causing damage. It can easily blow away the dust from the heat sinks, allowing them to function more efficiently and prevent overheating. Using a mild cleaning solution, lint-free cloth, or isopropyl alcohol may not be as effective in removing the dust from the heat sinks, and there is a risk of damaging the components if liquid is involved. Therefore, compressed air is the best option for cleaning the heat sinks in this scenario.Rate this question:
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- 3.
Which computer components must a technician never try to work on when wearing an antistatic wrist strap?
- A.
CPU;
- B.
Hard Disk;
- C.
Keyboard;
- D.
CRT Monitor;
- E.
RAM Module.
Correct Answer
D. CRT Monitor;Explanation
A technician should never try to work on a CRT monitor while wearing an antistatic wrist strap. This is because CRT monitors contain high-voltage components that can still pose a risk of electric shock even when wearing the strap. The antistatic wrist strap is primarily used to prevent static electricity from damaging sensitive electronic components, such as the CPU, hard disk, keyboard, and RAM module. However, it is not necessary or recommended to wear the strap when working on a CRT monitor.Rate this question:
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- 4.
Refer to the exhibit. Which type of tool is shown in the graphic?
- A.
Cable meter;
- B.
Digital multimeter;
- C.
Network traffic monitor;
- D.
Electrostatic discharger.
Correct Answer
B. Digital multimeter;Explanation
The graphic shows a device with a screen displaying numerical values, indicating that it is a digital tool. The tool appears to have probes or leads, suggesting that it is used for measuring electrical properties. Therefore, the correct answer is a digital multimeter, which is commonly used to measure voltage, current, and resistance in electrical circuits.Rate this question:
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- 5.
How does a technician discharge static buildup?
- A.
Touching the painted part of the computer case;
- B.
Touching an unpainted part of the computer case;
- C.
Touching an antistatic wrist strap before touching any computer equipment;
- D.
Touching an antistatic mai before touching any computer equipment.
Correct Answer
B. Touching an unpainted part of the computer case;Explanation
The correct answer is touching an unpainted part of the computer case. When a technician touches an unpainted part of the computer case, it allows any static electricity that has built up in their body to be discharged safely. This is because the case is grounded, meaning it is connected to the earth's electrical potential. By touching the unpainted part, the technician equalizes their electrical charge with the case, preventing any potential damage to sensitive computer components.Rate this question:
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- 6.
Refer to exhibit. Which type of tool is presented in the graphic?
- A.
Hex screwdriver;
- B.
Stripped screwdriver;
- C.
Philips-head screwdriver;
- D.
Flat-head screwdriver.
Correct Answer
C. Philips-head screwdriver;Explanation
The graphic in the exhibit shows a tool with a cross-shaped tip. This type of tool is commonly known as a Philips-head screwdriver. It is used to tighten or loosen screws with a corresponding cross-shaped indentation on the head.Rate this question:
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- 7.
Which step should be performed first when servicing computer equipment?
- A.
Wipe down the exterior with a lint free, damp soft cloth;
- B.
Open the case and chek for any loose connections;
- C.
Turn off and remove the power source;
- D.
Replace any suspected bad components with known good components.
Correct Answer
C. Turn off and remove the power source;Explanation
When servicing computer equipment, the first step should be to turn off and remove the power source. This is crucial for safety reasons as it eliminates the risk of electric shock or damage to the equipment. By disconnecting the power source, you ensure that the computer is not receiving any electricity and can be safely handled. Once the power is off, you can proceed with other steps such as checking for loose connections, wiping down the exterior, or replacing components if necessary.Rate this question:
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- 8.
Which condition refers to a sudden and dramatic increase in voltage, which is usualy caused by lighting?
- A.
Brownout;
- B.
Sag;
- C.
Spike;
- D.
Surge.
Correct Answer
C. Spike;Explanation
A spike refers to a sudden and dramatic increase in voltage, which is usually caused by lightning. It is a short-lived event that can cause damage to electrical equipment if not properly protected.Rate this question:
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- 9.
Which Windows XP command-line scans the critical files of the operating system and replaces any files that have been corrupted?
- A.
Chkdsk;
- B.
Defrag;
- C.
Disk Cleanup;
- D.
Disk Management;
- E.
Scan System;
- F.
System File Checker.
Correct Answer
F. System File Checker.Explanation
The System File Checker command-line in Windows XP is used to scan the critical files of the operating system and replace any files that have been corrupted. It is a built-in utility that helps to maintain the integrity of system files and ensure their proper functioning. By running this command, users can identify and fix any issues with system files, which can help to improve the stability and performance of the operating system.Rate this question:
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- 10.
The performance of a computer is reduced after if has been using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)
- A.
Fdisk;
- B.
Spyware Remover;
- C.
Defrag;
- D.
Disk Cleanup;
- E.
A Bios updater;
- F.
Device Manager Utility.
Correct Answer(s)
B. Spyware Remover;
C. Defrag;
D. Disk Cleanup;Explanation
Running a Spyware Remover can help improve computer performance by removing any malicious software that may be running in the background and consuming system resources. Running a Defrag tool can optimize the arrangement of files on the hard drive, improving access times and overall performance. Running a Disk Cleanup tool can free up disk space by removing temporary files, unnecessary system files, and other clutter that can slow down the computer.Rate this question:
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- 11.
Why is documentation of all services and repairs an important organizational tool for a technician?
- A.
It allows for public sharing on the Internet;
- B.
It increases the cost of services and repairs;
- C.
It minimizes the requirements that are used when hiring new technicians;
- D.
It provides reference material for similar problems when such problems are encounterd in the future.
Correct Answer
D. It provides reference material for similar problems when such problems are encounterd in the future.Explanation
Documentation of all services and repairs is an important organizational tool for a technician because it provides reference material for similar problems that may be encountered in the future. By documenting the details of each service and repair, technicians can refer back to these records when faced with similar issues, saving time and effort in troubleshooting and problem-solving. It helps in identifying patterns, trends, and solutions that have worked in the past, enabling technicians to provide more efficient and effective services.Rate this question:
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- 12.
Why should an antistatic wrist strap be worn when working on electronic equipment?
- A.
To prevent interference from clothing and loose jewelry;
- B.
To equalize the electrical charge between a person and the equipment;
- C.
To prevent clothing made of silk, polyester, or wool from generating a static charge;
- D.
To draw static electricity away from a component and transfer it safetely from equipment to a grounding point.
Correct Answer
B. To equalize the electrical charge between a person and the equipment;Explanation
An antistatic wrist strap should be worn when working on electronic equipment to equalize the electrical charge between a person and the equipment. This helps to prevent static electricity from building up and potentially damaging the sensitive electronic components. By wearing the wrist strap, any static charge on the person's body is safely discharged to the equipment, preventing any discharge from occurring that could harm the equipment.Rate this question:
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- 13.
Which precaution should be taken when working around electronic devices?
- A.
Avoid using magnetized tools;
- B.
Only use hard tools from the same vendor;
- C.
Wear ESD protection to repair monitors in humid environments;
- D.
Avoid using ESD wrist straps and ESD mats simultaneously.
Correct Answer
A. Avoid using magnetized tools;Explanation
When working around electronic devices, it is important to avoid using magnetized tools. This is because magnets can interfere with the delicate electronic components and cause damage or malfunction. Using non-magnetized tools ensures that there is no risk of magnetic interference and helps to maintain the proper functioning of the devices.Rate this question:
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- 14.
Which tool in Windows XP gives a technician access to initialize disks and create partitions?
- A.
Defrag;
- B.
Disk Cleanup;
- C.
Disk Management;
- D.
Format;
- E.
Scandisk.
Correct Answer
C. Disk Management;Explanation
Disk Management is the correct answer because it is the tool in Windows XP that allows a technician to initialize disks and create partitions. This tool provides a graphical interface for managing disks and volumes, allowing users to perform tasks such as creating, deleting, and formatting partitions, as well as assigning drive letters and changing volume labels. It is a useful tool for managing storage devices and optimizing disk space in Windows XP.Rate this question:
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- 15.
What are two significant sources of EMI? (Choose two)
- A.
Infrared mice;
- B.
RAM modules
- C.
Electrical storms;
- D.
LCD monitors;
- E.
Power lines.
Correct Answer(s)
C. Electrical storms;
E. Power lines.Explanation
Electrical storms and power lines are two significant sources of electromagnetic interference (EMI). Electrical storms produce high levels of electromagnetic radiation due to lightning strikes, which can disrupt electronic devices and cause interference. Power lines can also generate EMI, especially when there are faults or fluctuations in the electrical power supply. This interference can affect the performance of nearby electronic equipment and cause disruptions in communication or data transmission.Rate this question:
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- 16.
Which two tools are recommended for cleaning a PC? (Choose two)
- A.
Antibacterial spray;
- B.
Compressed air;
- C.
Mild abrasive detergent;
- D.
Nylon brush;
- E.
Rubbing alcohol;
- F.
Soft cloth.
Correct Answer(s)
B. Compressed air;
F. Soft cloth.Explanation
Compressed air is recommended for cleaning a PC because it can effectively remove dust and debris from hard-to-reach areas without causing any damage. A soft cloth is also recommended as it can be used to gently wipe down the surfaces of the PC, removing smudges and fingerprints without scratching or damaging the components.Rate this question:
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- 17.
Which tool should be used if a user needs to optimize space on a hard drive?
- A.
Defrag;
- B.
Disk Management;
- C.
Fdisk;
- D.
Format.
Correct Answer
A. Defrag;Explanation
Defrag is the correct answer because it is a tool specifically designed to optimize space on a hard drive. It rearranges fragmented data on the hard drive, making it easier and faster for the computer to access files. This process helps to free up space and improve overall system performance. Disk Management is used for managing disk partitions, Fdisk is used for creating and managing disk partitions in older versions of Windows, and Format is used to prepare a disk for use by erasing all data on it.Rate this question:
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- 18.
Which three computer components contain hazardous materials and require special handing for disposal? (Choose three)
- A.
Batteries;
- B.
Floppy drives;
- C.
Monitors;
- D.
Optical drives;
- E.
Parallel cables;
- F.
Printer toner cartridges.
Correct Answer(s)
A. Batteries;
C. Monitors;
F. Printer toner cartridges.Explanation
Batteries, monitors, and printer toner cartridges contain hazardous materials and require special handling for disposal. Batteries often contain toxic chemicals such as lead, cadmium, and mercury. Monitors contain cathode ray tubes (CRTs) which contain lead, a toxic heavy metal. Printer toner cartridges contain various chemicals, including toner powder, which can be harmful if not disposed of properly. Therefore, these three components need to be handled carefully and disposed of according to specific guidelines to prevent environmental contamination and health risks.Rate this question:
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- 19.
Which two tools can help protect against ESD? (Choose two)
- A.
Antistatic wrist strap;
- B.
Compressed air;
- C.
Antistatic mat;
- D.
Safety glasses;
- E.
Polyester clothing.
Correct Answer(s)
A. Antistatic wrist strap;
C. Antistatic mat;Explanation
An antistatic wrist strap is worn by technicians to prevent the buildup and discharge of static electricity while working with sensitive electronic components. It grounds the technician and prevents static electricity from damaging the components. An antistatic mat is placed on the work surface to provide a conductive path for any static electricity to dissipate harmlessly. This protects the components from static discharge and potential damage.Rate this question:
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- 20.
Which two types of tool can help protect a computer from malicious attacks? (Choose two)
- A.
Antivirus software;
- B.
Disk Cleanup;
- C.
Disk Management;
- D.
Fdisk;
- E.
Scandisk;
- F.
Spyware Remover.
Correct Answer(s)
A. Antivirus software;
F. Spyware Remover.Explanation
Antivirus software and Spyware Remover are two types of tools that can help protect a computer from malicious attacks. Antivirus software is designed to detect, prevent, and remove viruses, worms, and other malware from the computer. It scans files and programs for any malicious code and blocks or removes them. Spyware Remover, on the other hand, specifically targets spyware, which is a type of malware that secretly gathers information about a user's activities without their knowledge. By using both antivirus software and a spyware remover, a computer can have a higher level of protection against various types of malicious attacks.Rate this question:
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