CompTIA A+ 220-801practice Exam
Questions and Answers
- 1.
How can you reduce the chance of ESD?
- A.
Use an antistatic wrist strap
- B.
Raise the temperature in the room
- C.
Touch an unpainted portion of the computer case
- D.
Lower the humidity
- E.
Plug the computer into an AC outlet
Correct Answer(s)
A. Use an antistatic wrist strap
C. Touch an unpainted portion of the computer caseExplanation
To reduce the chance of ESD (Electrostatic Discharge), it is important to use an antistatic wrist strap. This strap helps to dissipate any static electricity that may have built up in the body, preventing it from damaging sensitive electronic components. Additionally, touching an unpainted portion of the computer case can also help to discharge any static electricity before handling the components. These measures ensure that any potential ESD is safely grounded, minimizing the risk of damage to the computer or its components.Rate this question:
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- 2.
Which of the following disperses heat but requires no moving parts?
- A.
Heat sink
- B.
CPU fan
- C.
Case fan
- D.
Liquid cooling system
Correct Answer
A. Heat sinkExplanation
A heat sink is a device that disperses heat without the need for any moving parts. It is typically made of a thermally conductive material, such as aluminum or copper, and is designed to absorb and dissipate heat from a component, such as a CPU or a GPU. The heat sink achieves this by increasing the surface area available for heat transfer, allowing the heat to be transferred to the surrounding environment through conduction, convection, and radiation. Unlike fans or liquid cooling systems, a heat sink does not require any mechanical components to function, making it a passive cooling solution.Rate this question:
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- 3.
Why should VoIP not be used with satellite Internet?
- A.
Bandwidth limitations
- B.
Difficult to install
- C.
Latency
- D.
Cost
Correct Answer
C. LatencyExplanation
VoIP should not be used with satellite Internet due to latency. Latency refers to the delay in transmitting data over the network. Satellite Internet connections have high latency because the data has to travel a long distance between the satellite in space and the user's device on the ground. This delay can cause issues with real-time communication, such as voice calls, as it can result in delays, poor call quality, and disruptions. Therefore, using VoIP with satellite Internet can lead to a subpar user experience and is not recommended.Rate this question:
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- 4.
A customer wants to control several computers with a single set of input devices. What solution should you provide for them?
- A.
Barcode reader
- B.
Smartcard reader
- C.
Ethernet switch
- D.
KVM
Correct Answer
D. KVMExplanation
A KVM (Keyboard, Video, Mouse) switch is the appropriate solution for a customer who wants to control multiple computers with a single set of input devices. A KVM switch allows the user to switch between different computers using a single keyboard, monitor, and mouse, providing convenience and efficiency. It eliminates the need for multiple sets of input devices and simplifies the management of multiple computers.Rate this question:
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- 5.
Which of the following would best be used for high-end graphics cards?
- A.
PCIe
- B.
PCI
- C.
AGP
- D.
ISA
Correct Answer
A. PCIeExplanation
PCIe (Peripheral Component Interconnect Express) would best be used for high-end graphics cards. PCIe is the latest and fastest interface for connecting peripheral devices to a computer's motherboard. It offers higher bandwidth and data transfer rates compared to older interfaces like PCI, AGP, and ISA. High-end graphics cards require a fast and efficient connection to the motherboard to ensure smooth and high-quality graphics performance, and PCIe provides the necessary capabilities for this purpose.Rate this question:
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- 6.
Which of the following materials should a computer never be placed on?
- A.
Wood
- B.
Carpet
- C.
Plastic
- D.
Tile
Correct Answer
A. WoodExplanation
A computer should never be placed on wood because wood is a poor conductor of electricity and can build up static electricity. This static electricity can damage the sensitive electronic components of the computer, leading to malfunctions or permanent damage. It is recommended to place computers on surfaces that are static-free, such as plastic or tile, or use anti-static mats or grounding straps to prevent any potential damage.Rate this question:
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- 7.
Of the following default ports, which one is used by the TELNET protocols?
- A.
23
- B.
25
- C.
80
- D.
110
Correct Answer
A. 23Explanation
TELNET is a protocol used for remote login and command execution on a remote computer. It operates on port number 23, which is specifically assigned for TELNET communication. This port allows users to establish a connection with a remote host and interact with it using a command-line interface. Therefore, the correct answer is 23.Rate this question:
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- 8.
Which of the following is the latest type of memory for a computer?
- A.
RAMBUS
- B.
DRAM
- C.
DDR
- D.
SDRAM
Correct Answer
C. DDRExplanation
DDR (Double Data Rate) is the latest type of memory for a computer. It is an improved version of SDRAM (Synchronous Dynamic Random Access Memory) and offers faster data transfer rates. DDR memory modules have higher bandwidth and can transfer data on both the rising and falling edges of the clock signal, effectively doubling the data rate compared to SDRAM. This makes DDR memory more efficient and faster, making it the latest and preferred choice for computer memory.Rate this question:
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- 9.
Which of the following can be potential sources of EMI?
- A.
Flat-panel televisions
- B.
AC power lines
- C.
Cordless phones
- D.
Electric motors
- E.
Faraday cage
Correct Answer(s)
B. AC power lines
D. Electric motorsExplanation
AC power lines and electric motors can both be potential sources of electromagnetic interference (EMI). AC power lines carry electrical currents that can generate electromagnetic fields, which can interfere with nearby electronic devices. Electric motors, especially those with brushes, can produce electrical noise that can also cause EMI. This interference can disrupt the proper functioning of other electronic devices, causing issues such as static, distortion, or loss of signal.Rate this question:
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- 10.
Which type of cable needs to be fire resistant?
- A.
STP
- B.
Coaxial
- C.
Plenum
- D.
UTP
Correct Answer
C. PlenumExplanation
Plenum cables need to be fire resistant because they are typically used in plenum spaces, which are areas in a building where air circulates for heating, ventilation, and air conditioning systems. Plenum spaces are considered high-risk areas in terms of fire safety because they can quickly spread fire and smoke throughout a building. Therefore, plenum cables are designed with fire-resistant materials to prevent the spread of fire and reduce the release of toxic fumes in case of a fire in these spaces.Rate this question:
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- 11.
Which wireless standard has the shortest indoor range?
- A.
802.11a
- B.
802.11b
- C.
802.11g
- D.
801.11n
Correct Answer
A. 802.11aExplanation
The correct answer is 802.11a. This wireless standard operates on a higher frequency band than the other options, which results in a shorter indoor range. While it offers higher data transfer rates, its shorter range makes it less suitable for large indoor spaces.Rate this question:
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- 12.
Which of the following types of storage media can hold the most data?
- A.
Blu-ray
- B.
DLT
- C.
DVD-ROM
- D.
SD card
Correct Answer
B. DLTExplanation
DLT (Digital Linear Tape) is a type of storage media that can hold the most data compared to the other options listed. DLT is a magnetic tape storage technology that is commonly used for backup and archival purposes. It has a high storage capacity, typically ranging from tens of gigabytes to several terabytes, depending on the specific DLT format. Blu-ray, DVD-ROM, and SD cards have comparatively lower storage capacities, making DLT the correct answer for holding the most data.Rate this question:
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- 13.
Which type of Internet connection provides typical downstream networking speeds of 5 to 12 Mbps utilizing phone lines?
- A.
ADSL
- B.
VPN
- C.
Bluetooth
- D.
802.3u
Correct Answer
A. ADSLExplanation
ADSL (Asymmetric Digital Subscriber Line) is the correct answer because it is a type of Internet connection that utilizes phone lines to provide downstream networking speeds of 5 to 12 Mbps. ADSL is commonly used in residential and small business settings, where the download speed is typically faster than the upload speed. VPN (Virtual Private Network) is a network technology that allows for secure remote connections, Bluetooth is a wireless technology used for short-range communication, and 802.3u is a standard for Fast Ethernet.Rate this question:
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- 14.
Which of the following is a common power rating for a desktop PC that runs office applications?
- A.
12 volts
- B.
400 watts
- C.
120 volts
- D.
900 watts
Correct Answer
B. 400 wattsExplanation
A common power rating for a desktop PC that runs office applications is 400 watts. This power rating is suitable for most desktop PCs used in office settings as it provides enough power to run the necessary components and peripherals without being excessive. Higher power ratings may be required for gaming or high-performance tasks, while lower power ratings may be sufficient for basic office tasks.Rate this question:
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- 15.
You have a PCIe card that you need ti install. The card's documentation says that is requires a x4 slot. The computer you are installing to has only x1 and x16 slots. What should you do?
- A.
Install the card to the x1 slot and get normal performance
- B.
Install the card to the x16 slot and get four times the performance
- C.
Install the card to the x1 slot and get half the performance
- D.
Install the card to the x16 slot and get normal performance
Correct Answer
D. Install the card to the x16 slot and get normal performanceExplanation
The correct answer is to install the card to the x16 slot and get normal performance. This is because the PCIe card requires a x4 slot, but it can also be installed in a x16 slot without any issues. The x16 slot has more lanes and bandwidth compared to the x1 slot, so the card will still function properly and provide normal performance.Rate this question:
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- 16.
Your boss asks you to replace his laptop's 500 GB hard drive with a new 640 GB hard drive. What interface would you most likely use?
- A.
PATA
- B.
SATA
- C.
IDE
- D.
SCSI
Correct Answer
B. SATAExplanation
The most likely interface to use when replacing the boss's laptop's hard drive with a new 640 GB hard drive would be SATA. SATA (Serial ATA) is a common interface used for connecting storage devices such as hard drives to computers. It offers faster data transfer speeds and is widely supported by modern laptops and desktops. PATA (Parallel ATA), IDE (Integrated Drive Electronics), and SCSI (Small Computer System Interface) are older interfaces that are less commonly used in modern computers.Rate this question:
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- 17.
Which type of printer requires special paper to operate?
- A.
Laser
- B.
Impact
- C.
Thermal
- D.
Inkjet
Correct Answer
C. ThermalExplanation
Thermal printers require special paper to operate because they use heat to create images on the paper. The special paper used in thermal printers is coated with a heat-sensitive material that reacts to the heat produced by the printer. When the printer heats specific areas of the paper, it causes the material to change color, creating the desired image or text. This type of printer is commonly used in applications such as receipts, tickets, and labels, where quick and reliable printing is required.Rate this question:
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- 18.
What is the recommended maximum cable length for USB 2.0?
- A.
15 meters
- B.
10 meters
- C.
7 meters
- D.
5 meters
Correct Answer
D. 5 metersExplanation
The recommended maximum cable length for USB 2.0 is 5 meters. USB 2.0 is designed to work effectively up to this distance, beyond which the signal quality may degrade and result in data loss or errors. Using longer cables can cause issues with data transmission and may not provide reliable performance. Therefore, it is recommended to keep the cable length within the specified limit to ensure proper functioning of USB 2.0 devices.Rate this question:
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- 19.
What should be used when installing or upgrading a CPU to ensure that heat will be dissipated efficiently through the heat sink.
- A.
Thermal compound
- B.
Power supply
- C.
Case fan
- D.
Fire extinguisher
Correct Answer
A. Thermal compoundExplanation
Thermal compound should be used when installing or upgrading a CPU to ensure that heat will be dissipated efficiently through the heat sink. Thermal compound, also known as thermal paste, is a substance that fills in the microscopic gaps between the CPU and the heat sink. It helps to improve thermal conductivity, allowing heat to transfer more effectively from the CPU to the heat sink. This ensures that the CPU remains cool and prevents overheating, which can lead to performance issues or even damage to the CPU.Rate this question:
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- 20.
How should you attempt to demonstrate professionalism when dealing with a customer?
- A.
Avoid distractions
- B.
Retain a chain of custody
- C.
Avoid being judgmental
- D.
Leave documentation to the customer
- E.
Meet expectations that the customer sets for you
Correct Answer(s)
A. Avoid distractions
C. Avoid being judgmental
E. Meet expectations that the customer sets for youExplanation
When dealing with a customer, it is important to demonstrate professionalism. This can be done by avoiding distractions, such as not checking your phone or being preoccupied with other tasks. It is also important to avoid being judgmental and to treat the customer with respect and empathy. Additionally, meeting the expectations that the customer sets for you shows professionalism and a commitment to providing excellent service.Rate this question:
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- 21.
What type of card would you use to record off-air television programs?
- A.
Wireless card
- B.
Video capture card
- C.
POST card
- D.
PCIe video card
Correct Answer
B. Video capture cardExplanation
A video capture card is the correct answer because it is specifically designed to record and capture video signals from external devices such as televisions. This type of card allows users to connect their television to their computer and record off-air television programs directly onto their computer's hard drive. Wireless cards, POST cards, and PCIe video cards do not have the necessary functionality or features to record off-air television programs.Rate this question:
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- 22.
What is the maximum data transfer rate of IEEE 1394a?
- A.
400 Mbps
- B.
480 Mbps
- C.
800 Mbps
- D.
1600 Mbps
Correct Answer
A. 400 MbpsExplanation
The maximum data transfer rate of IEEE 1394a is 400 Mbps. This standard, also known as FireWire, is commonly used for connecting devices such as digital cameras and external hard drives to a computer. It provides a fast and reliable connection for transferring large amounts of data, but the maximum speed is limited to 400 Mbps.Rate this question:
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- 23.
Which of the following IP addresses is private?
- A.
8.58.12.192
- B.
173.169.254.1
- C.
192.168.58.11
- D.
11.23.185.57
Correct Answer
C. 192.168.58.11Explanation
The IP address 192.168.58.11 is private because it falls within the range of private IP addresses specified by the Internet Assigned Numbers Authority (IANA). Private IP addresses are reserved for use within private networks and are not routable on the public internet. The other IP addresses listed are public IP addresses, which are assigned to devices that are directly connected to the internet.Rate this question:
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- 24.
Which type if memory module has 240 pins?
- A.
SODIMM DD3
- B.
DDR
- C.
SODIMM DDR2
- D.
DDR2
Correct Answer
D. DDR2Explanation
The correct answer is DDR2. DDR2 memory modules have 240 pins. SODIMM DDR3 and DDR memory modules have different pin configurations, so they are not the correct answer.Rate this question:
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- 25.
Which types of RAID stripes data across three or more disks along with parity?
- A.
RAID 0
- B.
RAID 1
- C.
RAID 5
- D.
RAID 10
Correct Answer
C. RAID 5Explanation
RAID 5 is the correct answer because it stripes data across three or more disks along with parity. This means that the data is distributed across multiple disks, allowing for improved performance and fault tolerance. The parity information is used to provide redundancy, allowing for the recovery of data in case of a disk failure. RAID 0 does not include parity, RAID 1 mirrors data across two disks, and RAID 10 combines mirroring and striping but does not include parity.Rate this question:
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- 26.
What is the greatest number of primary partitions in a single physical hard drive?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
D. 4Explanation
A primary partition is a section of a hard drive that can be used to store data and install an operating system. In a single physical hard drive, the maximum number of primary partitions that can be created is four. This is because the partition table, which keeps track of the partitions on a hard drive, can only accommodate four entries. Each primary partition is assigned a unique identifier and can be formatted with a file system to store data.Rate this question:
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- 27.
Which of the following types of PCs would need a powerful CPU, high-end video card, and as much RAM as possible?
- A.
Home theater PC
- B.
CAD workstation
- C.
Virtualization workstation
- D.
Thin client
Correct Answer
B. CAD workstationExplanation
A CAD (Computer-Aided Design) workstation requires a powerful CPU, high-end video card, and as much RAM as possible because CAD software is resource-intensive. The CPU handles complex calculations, the high-end video card ensures smooth rendering of 3D models, and a large amount of RAM allows for handling large and complex design files. Therefore, a CAD workstation needs these specifications to ensure efficient and smooth operation while working with complex designs.Rate this question:
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- 28.
You are tasked with upgrading the RAM in a customer's laptop. What type of memory should you select?
- A.
SODIMM
- B.
DDR3
- C.
RIMM
- D.
SDRAM
Correct Answer
A. SODIMMExplanation
SODIMM stands for Small Outline Dual In-line Memory Module, which is a type of memory specifically designed for laptops and other small form factor computers. It is the correct choice for upgrading the RAM in a customer's laptop as it is compatible with most laptop motherboards and offers higher performance compared to other options. DDR3, RIMM, and SDRAM are not suitable choices for upgrading laptop RAM.Rate this question:
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- 29.
Which of the following is the correct data connector for an internal SATA hard drive?
- A.
7-pin
- B.
15-pin
- C.
34-pin
- D.
40-pin
Correct Answer
A. 7-pinExplanation
The correct data connector for an internal SATA hard drive is a 7-pin connector. SATA (Serial ATA) is a standardized interface used for connecting storage devices such as hard drives and solid-state drives to a computer's motherboard. The 7-pin connector is specifically designed for SATA drives and provides a fast and reliable data transfer between the drive and the motherboard.Rate this question:
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- 30.
A frustrated customer calls you about a PC that is not functioning properly. What should you ask the user?
- A.
"What were you doing when the computer crashed?"
- B.
"Don't use that computer until it's fixed."
- C.
"What was the last thing that occurred before the computer stopped functioning properly?"
- D.
"What was the last thing you did before the computer stopped functioning properly?"
Correct Answer
C. "What was the last thing that occurred before the computer stopped functioning properly?"Explanation
The correct answer is "What was the last thing that occurred before the computer stopped functioning properly?" This question is important because it helps gather information about the sequence of events leading up to the issue. By asking this question, the technician can identify any recent changes or actions that might have caused the problem, making it easier to diagnose and resolve the issue.Rate this question:
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- 31.
What type if RAM us used to solve memory errors?
- A.
ECC
- B.
Parity
- C.
Non-parity
- D.
Non-ECC
Correct Answer
A. ECCExplanation
ECC stands for Error Correcting Code, and it is a type of RAM (Random Access Memory) that is used to solve memory errors. ECC RAM is designed to detect and correct errors that occur during data storage and retrieval. It uses additional bits to store error detection and correction codes, allowing it to identify and fix single-bit errors, and detect multi-bit errors. This makes ECC RAM more reliable and suitable for systems that require high levels of data integrity and error correction, such as servers and workstations.Rate this question:
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- 32.
What does Hyper-Threading do?
- A.
It works only on PCs with more that one core
- B.
It enables two independent CPUs to work in the same task simultaneously
- C.
It enables the computer operating system to work on multiple task simultaneously
- D.
It allows a processor to work with two independent computer instructions at once
Correct Answer
D. It allows a processor to work with two independent computer instructions at onceExplanation
Hyper-Threading allows a processor to work with two independent computer instructions at once. This means that the processor can handle multiple tasks simultaneously, improving overall performance and efficiency. It does not require multiple cores, as it can be implemented on a single-core processor. By allowing the processor to handle more instructions at the same time, Hyper-Threading enhances multitasking capabilities and speeds up the execution of tasks.Rate this question:
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- 33.
Which printing technology uses multilayer carbonless copy paper?
- A.
Dot matrix
- B.
Print spooling
- C.
Inkjet
- D.
Thermal
Correct Answer
A. Dot matrixExplanation
Dot matrix printing technology uses multilayer carbonless copy paper. This type of paper is designed to create multiple copies of a document without the need for carbon paper. Dot matrix printers use a series of small pins to strike an inked ribbon against the paper, creating dots that form characters and images. The impact of the pins on the paper transfers the ink to the layers beneath, allowing for the creation of multiple copies. This makes dot matrix printers suitable for applications such as receipts, invoices, and other forms that require duplicate or triplicate copies.Rate this question:
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- 34.
Which one of the following DDR modules is a DDR3 module?
- A.
PC1600
- B.
PC2700
- C.
PC5300
- D.
PC8500
Correct Answer
D. PC8500Explanation
PC8500 is a DDR3 module because the PC prefix indicates the module's speed in megahertz (MHz), and DDR3 modules have a speed rating of 8500 MHz. PC1600, PC2700, and PC5300 are all DDR2 modules because their speed ratings correspond to the specifications of DDR2 technology.Rate this question:
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- 35.
In the electrophotographic printing process, which one of the following printers uses a charged corona wire?
- A.
Laser
- B.
Thermal
- C.
Impact
- D.
Inkjet
Correct Answer
A. LaserExplanation
The correct answer is Laser. In the electrophotographic printing process, a laser printer uses a charged corona wire. The corona wire is responsible for applying a uniform charge to the photosensitive drum, which is then selectively discharged by the laser to create an electrostatic image. This image is then transferred to paper and fused using heat and pressure to create the final printed output.Rate this question:
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- 36.
Which sockets could be used by a Core i5 CPU?
- A.
1155
- B.
775
- C.
Socket M
- D.
1366
- E.
1156
Correct Answer(s)
A. 1155
E. 1156Explanation
The Core i5 CPU can be used with sockets 1155 and 1156. These sockets are specifically designed to be compatible with Core i5 processors. Socket 1155 is used for the second and third generation Core i5 CPUs, while socket 1156 is used for the first generation Core i5 CPUs. The other sockets listed (775, Socket M, and 1366) are not compatible with Core i5 CPUs.Rate this question:
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- 37.
What is the most secure type of wireless communications?
- A.
WPA2
- B.
WPA
- C.
WEP
- D.
SSID
Correct Answer
A. WPA2Explanation
WPA2 is the most secure type of wireless communication because it uses the strongest encryption and authentication methods. It provides better security than WPA and WEP, which have known vulnerabilities. SSID, on the other hand, is not a type of wireless communication but rather the name of a wireless network.Rate this question:
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- 38.
Which networking technology has the highest potential throughput?
- A.
Cable
- B.
Satellite
- C.
Fiber
- D.
DSL
Correct Answer
C. FiberExplanation
Fiber optic technology has the highest potential throughput compared to cable, satellite, and DSL. Fiber optic cables use light signals to transmit data, allowing for faster and more efficient data transfer. This technology offers significantly higher bandwidth and faster speeds, making it ideal for high-demand applications such as video streaming, online gaming, and large file transfers.Rate this question:
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- 39.
Which of the following CPU types is manufactured by AMD?
- A.
Pentium
- B.
Celeron
- C.
Core i7
- D.
Phenom
Correct Answer
D. PhenomExplanation
The CPU type "Phenom" is manufactured by AMD. Pentium and Celeron are CPU types manufactured by Intel, while Core i7 is also a CPU type manufactured by Intel. Therefore, the correct answer is Phenom, as it is the only CPU type in the given options that is manufactured by AMD.Rate this question:
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- 40.
You attempting to set up a laptop that will display through a projector. Nothing is appearing on the projector screen. What should you press to enable viewing on the projector screen?
- A.
Power button
- B.
Control+ESC
- C.
Function keys
- D.
ALT+Insert
Correct Answer
C. Function keysExplanation
To enable viewing on the projector screen, you should press the Function keys. Function keys are commonly used to control display settings on laptops, including switching between different display modes such as extending or duplicating the screen. By pressing the appropriate Function key, you can activate the display output to the projector and ensure that the laptop's screen is mirrored or extended onto the projector screen.Rate this question:
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- 41.
Which of the following types of RAM can transfer 12,800 MB/s?
- A.
DDR3-1600
- B.
DDR3-1333
- C.
DDR2-1066
- D.
DDR2-800
Correct Answer
A. DDR3-1600Explanation
DDR3-1600 can transfer 12,800 MB/s because the number 1600 in the DDR3-1600 specification represents the memory's clock speed in megahertz (MHz). The data transfer rate of DDR3 RAM is calculated by multiplying the clock speed by 8 (the number of bytes transferred per clock cycle). Therefore, 1600 MHz x 8 bytes = 12,800 MB/s.Rate this question:
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- 42.
What command would you use to verify the IP address of a gateway on a local computer?
- A.
PING
- B.
IPCONFIG
- C.
NET USE
- D.
NETSTAT
Correct Answer
B. IPCONFIGExplanation
To verify the IP address of a gateway on a local computer, the command that would be used is IPCONFIG. IPCONFIG is a command-line tool in Windows that displays the IP configuration details of all network interfaces on the computer, including the IP address of the gateway. By running IPCONFIG, the user can quickly check the IP address of the gateway and ensure that the computer is properly connected to the network.Rate this question:
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- 43.
Which chip is responsible for maintaining the data flow between a SATA hard drive and the processor?
- A.
BIOS
- B.
Northbridge
- C.
FSB
- D.
Southbridge
Correct Answer
D. SouthbridgeExplanation
The Southbridge chip is responsible for maintaining the data flow between a SATA hard drive and the processor. The Southbridge chip is a part of the motherboard's chipset and handles the slower and less critical components of the system, including the hard drive interface. It manages the input/output operations and provides communication between the processor and peripherals such as hard drives, USB ports, and audio devices.Rate this question:
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- 44.
Which video resolution type should you use to attain a resolution of 1600x1050?
- A.
WSXGA+
- B.
UXGA
- C.
SXGA
- D.
SVGA
Correct Answer
A. WSXGA+Explanation
WSXGA+ is the correct answer because it stands for Wide Super Extended Graphics Array Plus, which has a resolution of 1680x1050 pixels. This resolution is higher than the required resolution of 1600x1050, making it the appropriate choice. UXGA stands for Ultra Extended Graphics Array and has a resolution of 1600x1200, which is not the desired resolution. SXGA stands for Super Extended Graphics Array and has a resolution of 1280x1024, which is lower than the required resolution. SVGA stands for Super Video Graphics Array and has a resolution of 800x600, which is also lower than the desired resolution.Rate this question:
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- 45.
Which one of the following types of printers allows for the lowest cost per page?
- A.
Dot matrix
- B.
Inkjet
- C.
Laser
- D.
Thermal
Correct Answer
C. LaserExplanation
Laser printers allow for the lowest cost per page compared to dot matrix, inkjet, and thermal printers. Laser printers use toner cartridges that have a higher page yield, meaning they can print more pages before needing to be replaced. Additionally, laser printers have faster printing speeds and produce high-quality prints, making them more efficient and cost-effective in the long run.Rate this question:
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- 46.
What is an example of EMI?
- A.
Degraded network performance due to network cables and AC power cables in close proximity
- B.
Degraded network performance due to too many Bluetooth devices being used in close proximity
- C.
Degraded network performance due to smartphone usage in close proximity
- D.
Degraded network performance due to poorly punched down network cables
Correct Answer
A. Degraded network performance due to network cables and AC power cables in close proximityExplanation
When network cables and AC power cables are placed in close proximity, it can cause electromagnetic interference (EMI) which can lead to degraded network performance. The electromagnetic fields generated by the AC power cables can interfere with the signals on the network cables, resulting in data transmission errors and reduced network speed. This is a common example of EMI that can impact network performance.Rate this question:
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- 47.
You need to retrieve e-mail on a laptop using Microsoft Outlook. Which protocol should you use to retreive the e-mail?
- A.
SMTP
- B.
FTP
- C.
POP3
- D.
PING
Correct Answer
C. POP3Explanation
To retrieve email on a laptop using Microsoft Outlook, the protocol that should be used is POP3 (Post Office Protocol version 3). SMTP (Simple Mail Transfer Protocol) is used for sending email, not retrieving it. FTP (File Transfer Protocol) is used for transferring files, not email. PING is a network utility used to test the reachability of a host on an Internet Protocol (IP) network, and it is not used for retrieving email.Rate this question:
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- 48.
You are required by a customer to configure energy-saving measures on laptop for when it switches to battery power. What utility should you configure?
- A.
MSCONFIG
- B.
DXDIAG
- C.
BIOS
- D.
ACPI
Correct Answer
D. ACPIExplanation
ACPI (Advanced Configuration and Power Interface) is the correct utility that should be configured to enable energy-saving measures on a laptop when it switches to battery power. ACPI is a standard that allows the operating system to control power management settings and hardware devices. By configuring ACPI, the laptop can optimize power usage, adjust performance settings, and enable features such as sleep mode or hibernation when running on battery power. This helps to extend the battery life and conserve energy.Rate this question:
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- 49.
Which of the following are digital, audio only formats?
- A.
WMA
- B.
AVI
- C.
WPA
- D.
AAC
Correct Answer(s)
A. WMA
D. AACExplanation
WMA and AAC are digital, audio-only formats. WMA stands for Windows Media Audio and is a file format developed by Microsoft specifically for audio content. AAC, on the other hand, stands for Advanced Audio Coding and is a standardized digital audio format that offers higher quality and efficiency compared to older formats like MP3. AVI is a multimedia container format that can contain both audio and video data, while WPA is not a recognized audio format.Rate this question:
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- 50.
Which of the following would you install into an AGP slot on a motherboard?
- A.
Memory
- B.
Video card
- C.
CPU
- D.
Soundcard
Correct Answer
B. Video cardExplanation
An AGP slot on a motherboard is specifically designed to accommodate a video card. This slot provides a high-speed connection between the video card and the motherboard, allowing for efficient communication and enhanced graphics performance. Therefore, installing a video card into an AGP slot is the correct choice as it would enable the computer to display high-quality visuals and handle graphic-intensive tasks effectively.Rate this question:
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Jan 18, 2023Quiz Edited by
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Mar 02, 2013Quiz Created by
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