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| By Lauralew

Lauralew

Community Contributor

Quizzes Created: 4 | Total Attempts: 1,678

| Attempts: 144

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1/86 Questions

802.3 standard is ethernet
- True
- False

About This Quiz

Explore key aspects of networking technologies, focusing on Ethernet standards, Bluetooth evolution, and VoIP services. This quiz assesses understanding of technological advancements in wireless communication and network infrastructure, suitable for learners in IT and computer science.

Quiz Preview

2.

What speed is Bluetooth 1.0?
- 1 Mbps
- 2 Mbps
- 3 Mbps
Correct Answer

A. 1 Mbps

Explanation

Bluetooth 1.0 has a speed of 1 Mbps. Mbps stands for megabits per second, which is a unit of data transfer rate. This means that Bluetooth 1.0 can transfer data at a maximum rate of 1 million bits per second.

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3.

Bluetooth 1.2 has better connection and discovery than 1.0
- True
- False
Correct Answer

A. True

Explanation

Bluetooth 1.2 has better connection and discovery than 1.0 because it introduced several enhancements to the technology. These enhancements include faster connection setup times, improved security measures, and enhanced data transfer rates. Bluetooth 1.2 also introduced the Adaptive Frequency Hopping (AFH) feature, which helps reduce interference from other wireless devices. Overall, these improvements make Bluetooth 1.2 more reliable and efficient in terms of connection and discovery compared to the earlier version, 1.0.

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4.

Bluetooth 2.1 has better pairing than 2.0
- True
- False
Correct Answer

A. True

Explanation

Bluetooth 2.1 has better pairing than 2.0 because it introduced a feature called Secure Simple Pairing (SSP). SSP improves the pairing process by using stronger encryption algorithms and allowing devices to authenticate each other, ensuring a secure connection. This eliminates the need for a PIN code to be entered during the pairing process, making it more convenient for users. Additionally, Bluetooth 2.1 also introduced Enhanced Data Rate (EDR), which enhances the data transfer speed and efficiency compared to 2.0.

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5.

What speed is Bluetooth 2.0?
- 1 Mbps
- 3.Mbps
- 1.5 Mbps
Correct Answer

A. 3.Mbps

Explanation

Bluetooth 2.0 has a speed of 3 Mbps. This means that it can transmit data at a rate of 3 million bits per second. This speed allows for faster and more efficient data transfer between Bluetooth-enabled devices, such as smartphones, tablets, and computers. The higher speed of Bluetooth 2.0 compared to previous versions allows for quicker file transfers, smoother audio streaming, and improved overall performance.

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6.

VOIP sends digital packets over existing internet connection
- True
- False
Correct Answer

A. True

Explanation

VOIP (Voice over Internet Protocol) is a technology that allows voice communication over the internet. It converts analog voice signals into digital packets and sends them over an existing internet connection. This eliminates the need for traditional phone lines and allows for cost-effective and efficient communication. Therefore, the given statement is true.

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7.

Which high-speed network connection uses existing telephone lines?
- DSL
- ISDN
- Cable
Correct Answer

A. DSL

Explanation

DSL (Digital Subscriber Line) is a high-speed network connection that uses existing telephone lines. It utilizes the unused frequency range of the telephone line to transmit data, allowing for faster internet access. DSL technology enables simultaneous use of the telephone line for voice calls and data transmission, making it a convenient option for users who want to access the internet without disrupting their phone service. ISDN (Integrated Services Digital Network) and cable connections are not based on existing telephone lines, making DSL the correct answer.

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8.

What technology can transmit telephone calls over packet-based netowrks?
- VoIP
- ISDN
- Skype
Correct Answer

A. VoIP

Explanation

VoIP (Voice over Internet Protocol) is the technology that enables the transmission of telephone calls over packet-based networks. It converts voice signals into digital data packets and sends them over IP networks, such as the internet. This allows for efficient and cost-effective communication as it utilizes existing internet infrastructure. ISDN (Integrated Services Digital Network) is a different technology that uses circuit-switched networks, while Skype is a specific application that uses VoIP technology for voice and video calls.

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9.

What frequency and speed is 802.11a?
- 5 GHz and 54mbits
- 2.4 GHz and 11mbits
- 2.4 GHz and 24mbits
Correct Answer

A. 5 GHz and 54mbits

Explanation

802.11a operates at a frequency of 5 GHz and has a maximum speed of 54mbits. This frequency band provides faster data transmission compared to the 2.4 GHz band used by other Wi-Fi standards, allowing for higher bandwidth and less interference. The speed of 54mbits refers to the maximum data rate that can be achieved in ideal conditions, although the actual speed experienced by users may vary depending on factors such as distance from the access point and interference from other devices.

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10.

What frequency and speed is 802.11b?
- 5 GHz and 54mbits
- 2.4 GHz and 11mbits
- 2.4 GHz and 24mbits
Correct Answer

A. 2.4 GHz and 11mbits

Explanation

802.11b operates at a frequency of 2.4 GHz and has a maximum data transfer rate of 11mbits. This wireless networking standard was introduced in 1999 and was one of the earliest versions of Wi-Fi. It offers slower speeds compared to newer standards like 802.11n or 802.11ac, but it is still widely used in some older devices or in areas with lower bandwidth requirements.

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11.

What frequency and speed is 802.11g?
- 2.4 GHz and 54mbits
- 5 GHz and 54mbits
- 2.4 GHz and 100mbits
Correct Answer

A. 2.4 GHz and 54mbits

Explanation

802.11g operates at a frequency of 2.4 GHz and has a maximum data transfer rate of 54mbits. This means that it uses the 2.4 GHz frequency band to transmit and receive data, and it can achieve a maximum speed of 54mbits per second.

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12.

What frequency and speed is 801.11n?
- 2.4 GHz and 5 GHz AND 600mbits
- 5 GHz and 100mbits
- Who knows
Correct Answer

A. 2.4 GHz and 5 GHz AND 600mbits

Explanation

The correct answer is 2.4 GHz and 5 GHz AND 600mbits. This is because 801.11n is a Wi-Fi standard that operates on both the 2.4 GHz and 5 GHz frequency bands. It also supports a maximum data rate of 600mbits, making it capable of faster wireless connections.

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13.

80111g is backwards compatible with 802.11b
- True
- False
Correct Answer

A. True

Explanation

80111g is a wireless networking standard that is backward compatible with 802.11b. This means that devices that support 80111g can also connect to and communicate with devices that support 802.11b. Backward compatibility allows for seamless integration and communication between different generations of wireless devices, ensuring that older devices can still function and communicate effectively in a newer network environment.

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14.

You can jumper a hard drive to run at a slower speed to match motherboards that are slower. i.e. 150 Mbps systems and 300/150 Mbps harddrive
- True
- False
Correct Answer

A. True

Explanation

The statement is true because it is possible to jumper a hard drive to run at a slower speed in order to match slower motherboards. This is particularly useful when the motherboard has a lower data transfer rate, such as 150 Mbps, and the hard drive has a higher data transfer rate, such as 300/150 Mbps. By jumpering the hard drive, it can be slowed down to match the slower motherboard, ensuring compatibility and optimal performance.

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15.

DVD rot occurs when humidity causes the chemicals in the DVD to oxidize and distintigrate
- True
- False
Correct Answer

A. True

Explanation

DVD rot is a phenomenon that occurs when the chemicals in a DVD disc oxidize and degrade due to high humidity levels. This oxidation and degradation can lead to the loss of data and the deterioration of the disc's readability. Therefore, the statement that DVD rot occurs when humidity causes the chemicals in the DVD to oxidize and disintegrate is true.

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16.

What prevents a motherboard from shorting onto a metal case?

Correct Answer
standouts

Explanation
Standouts are small plastic or metal spacers that are used to elevate and separate the motherboard from the metal case. They prevent the motherboard from directly touching the case, which could cause a short circuit. By using standouts, the motherboard is securely mounted and insulated, ensuring that it remains safe from any electrical contact with the case.

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17.

What chip on the memory module provides performance information to the computer?

Correct Answer
SPD

Explanation
The chip on the memory module that provides performance information to the computer is the SPD (Serial Presence Detect) chip. This chip contains information about the memory module's specifications, such as its speed, timings, and voltage requirements. The computer can read this information from the SPD chip to optimize the memory module's performance and ensure compatibility with the system.

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18.

In some cases you might need to install the driver prior to installing the hardware
- True
- False
Correct Answer

A. True

Explanation

In certain situations, it is necessary to install the driver before installing the hardware. This is because the driver acts as a communication bridge between the hardware and the operating system, allowing them to work together seamlessly. Without the driver, the hardware may not function properly or may not be recognized by the system at all. Therefore, it is important to install the driver first to ensure that the hardware can be properly recognized and utilized by the computer.

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19.

If your laser printer is producing blurred or smeared print, the issue may be with the fuser.
- True
- False
Correct Answer

A. True

Explanation

If a laser printer is producing blurred or smeared print, the issue may be with the fuser. The fuser is a component in a laser printer that uses heat and pressure to fuse the toner onto the paper. If the fuser is not functioning properly, it can cause the toner to smear or blur on the paper. Therefore, the statement "If your laser printer is producing blurred or smeared print, the issue may be with the fuser" is true.

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20.

If a laser printer is producing lines on the output, it may be that the photosensitive drum has a scratch
- True
- False
Correct Answer

A. True

Explanation

If a laser printer is producing lines on the output, it is likely that the photosensitive drum has a scratch. The photosensitive drum is a crucial component of a laser printer that transfers toner onto the paper. If it has a scratch, it can cause irregularities in the toner transfer process, resulting in lines or streaks on the printed output. Therefore, the statement is true.

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21.

With a laser printer, the entire page must be built in memory before it starts the printing process
- True
- False
Correct Answer

A. True

Explanation

Laser printers work by creating an image of the entire page in memory before the printing process begins. This is because laser printers use a laser beam to scan the entire page and create a digital image of it. Once the image is created, the printer uses the image to transfer toner onto the paper and create the final printed page. Therefore, the statement that the entire page must be built in memory before printing is true.

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22.

Garbled print usually relates to the printer driver. But, it could also indicate a bad cable.
- True
- False
Correct Answer

A. True

Explanation

Garbled print refers to distorted or unreadable text or images that are printed. This issue is commonly caused by problems with the printer driver, which is the software that facilitates communication between the computer and the printer. However, it is also possible for a bad cable, such as a faulty USB or printer cable, to cause garbled print. Therefore, the statement that garbled print usually relates to the printer driver but could also indicate a bad cable is true.

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23.

On newer laptop systems, there isn't a physical LCD switch that tells the laptop when you have shut the case and to power down. The newer systems have an internal magnetic switch that you can't see
- True
- False
Correct Answer

A. True

Explanation

Newer laptop systems do not have a physical LCD switch to detect when the case is shut and power down. Instead, they have an internal magnetic switch that is not visible. This means that when the laptop is closed, the magnetic switch is triggered and the system powers down. Therefore, the statement "On newer laptop systems, there isn't a physical LCD switch that tells the laptop when you have shut the case and to power down" is true.

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24.

Poor light or no display at all indicates the backlights are bad. The inverters need to be replaced.
- True
- False
Correct Answer

A. True

Explanation

The explanation for the given correct answer is that poor light or no display at all is a clear indication that the backlights are bad. Backlights are responsible for illuminating the display screen, and if they are not functioning properly, it can result in a dim or completely dark display. In such cases, the inverters, which are responsible for supplying power to the backlights, need to be replaced in order to fix the issue. Therefore, the statement is true.

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25.

The inverters convert DC power to AC power.
- True
- False
Correct Answer

A. True

Explanation

Inverters are electronic devices that convert direct current (DC) power into alternating current (AC) power. This is done by using electronic components such as transistors and capacitors to change the direction of the current flow. AC power is the type of power that is used in most household appliances and electrical systems. Therefore, the statement that inverters convert DC power to AC power is true.

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26.

Laptop antenna wires connections are internal and can often be dislodged during maintenance
- True
- False
Correct Answer

A. True

Explanation

Laptop antenna wires connections are internal and can often be dislodged during maintenance. This is true because the antenna wires inside a laptop are typically connected to the wireless network card or module. During maintenance or repairs, if the laptop is opened up or components are moved around, there is a possibility that the antenna wires may become loose or disconnected. This can result in a weaker or non-existent wireless signal, requiring the wires to be reconnected properly.

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27.

A stateful firewall is one that opens a hole to a specific site, and then only allows communication back if it matches the communicatio that went out.
- True
- False
Correct Answer

A. True

Explanation

A stateful firewall is designed to keep track of the state of network connections. It monitors the ongoing communication between a client and a server and allows incoming traffic only if it matches an existing outgoing connection. This ensures that only legitimate and expected communication is allowed through the firewall, providing an additional layer of security. Therefore, the statement that a stateful firewall opens a hole to a specific site and only allows communication back if it matches the outgoing communication is true.

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28.

Two factor authentication will include your user name and password, PLUS your fingerprint or a smart card
- True
- False
Correct Answer

A. True

Explanation

Two-factor authentication is a security measure that requires two different forms of identification to access an account or system. In this case, the correct answer is True because it states that two-factor authentication includes both a username and password, as well as an additional form of identification such as a fingerprint or a smart card. This additional layer of security helps to verify the identity of the user and reduce the risk of unauthorized access.

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29.

How can you add full-size adapter cards to a laptop system?
- PC Cards
- Use a docking station
- PCMCIA cards
Correct Answer

A. Use a docking station

Explanation

A docking station is a device that allows you to connect your laptop to additional peripherals and expansion options, such as full-size adapter cards. By connecting the laptop to the docking station, you can easily add and use these cards, expanding the capabilities of your laptop system. This is a convenient solution for adding full-size adapter cards to a laptop, as it provides a secure and stable connection, allowing you to use the cards efficiently.

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30.

What formerly named PCMCIA adapter type is used in legacy laptop devices?

Correct Answer
PC Cards

Explanation
PC Cards, formerly known as PCMCIA cards, are used in legacy laptop devices. PC Cards are credit card-sized devices that can be inserted into a laptop's PCMCIA slot to add functionality such as additional memory, network connectivity, or wireless capabilities. These cards were widely used in older laptops before the introduction of USB and other modern connectivity options.

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31.

What is the latest laptop expansion adapter that comes in two sizes: 34mm and 54mm?
- PCI Express Cards
- PCMCIA
- PC Cards
Correct Answer

A. PCI Express Cards

Explanation

PCI Express Cards are the latest laptop expansion adapters that come in two sizes: 34mm and 54mm. PCMCIA and PC Cards are older technologies and do not support the same level of performance and speed as PCI Express Cards. Therefore, PCI Express Cards are the correct answer.

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32.

What are the three types of laptop expansion slots?
- PCMCIA or PC Card
- Card Bus
- PCI Express
Correct Answer(s)

A. PCMCIA or PC Card
A. Card Bus
A. PCI Express

Explanation

The three types of laptop expansion slots are PCMCIA or PC Card, Card Bus, and PCI Express. PCMCIA or PC Card slots were commonly used in older laptops to add additional functionality such as network cards or modems. Card Bus slots are an updated version of PCMCIA slots and are used for the same purpose. PCI Express slots are the most modern type of expansion slot and are used to add high-performance components such as graphics cards or solid-state drives to a laptop.

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33.

Card Bus expansion cards and PC Cards are not interchangeable. But you sometimes can insert PCMCIA into PC Card slots
- True
- False
Correct Answer

A. True

Explanation

Card Bus expansion cards and PC Cards are not interchangeable because they use different bus architectures. Card Bus expansion cards use a 32-bit bus architecture, while PC Cards use a 16-bit bus architecture. However, some PC Card slots are designed to be compatible with both Card Bus expansion cards and PC Cards, allowing users to insert PCMCIA (PC Card) into these slots. Therefore, the statement is true.

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34.

Which wireless networking technology can be used from almost any location?
- Mobile Broadband
- Bluetooth
- Cellular
Correct Answer

A. Mobile Broadband

Explanation

Mobile broadband is a wireless networking technology that allows users to access the internet from almost any location. Unlike Bluetooth, which has a limited range, and cellular, which requires a specific network infrastructure, mobile broadband uses cellular networks to provide internet connectivity. This means that users can connect to the internet using mobile broadband from almost anywhere, as long as there is cellular coverage. Therefore, mobile broadband is the correct answer to the question.

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35.

Which networking technology is a good option if 802.11 or wireless broadband isn't available?
- A Modem
- Ethernet
- Bluetooth
Correct Answer

A. A Modem

Explanation

A modem is a good option if 802.11 or wireless broadband isn't available because it allows for a wired internet connection. A modem connects to the internet service provider's network through a physical cable, such as a coaxial cable or a telephone line. This allows for a reliable and stable internet connection, especially in areas where wireless signals may be weak or unavailable. Modems are commonly used in homes and businesses to provide internet access through Ethernet cables, which can be connected to computers, routers, or other devices.

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36.

Most laptop power adapters are auto switching between 110v and 120v. But sometimes you have to manually configure them
- True
- False
Correct Answer

A. True

Explanation

Laptop power adapters are designed to be auto switching between 110v and 120v, meaning they can automatically adjust to the voltage of the power source. However, there may be instances where manual configuration is required, possibly due to compatibility issues or specific power requirements. Therefore, the statement "Most laptop power adapters are auto switching between 110v and 120v, but sometimes you have to manually configure them" is true.

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37.

Which modern battery type has a limted service life?
- Lithium Ion (ion
- NiCad
- NiMh
Correct Answer

A. Lithium Ion (ion

Explanation

Lithium Ion batteries have a limited service life. Over time, the capacity of these batteries decreases due to factors such as chemical reactions and the formation of solid electrolyte interface. This leads to a decrease in the battery's ability to hold a charge and ultimately results in a reduced service life. Additionally, the performance of lithium-ion batteries can be affected by factors such as temperature, usage patterns, and charging/discharging cycles. Therefore, it is important to consider the limited service life of lithium-ion batteries when using them in various devices.

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38.

PCI slots are the longer white slots
- True
- False
Correct Answer

A. True

Explanation

PCI slots are indeed the longer white slots on a motherboard. These slots are used to connect various expansion cards, such as graphics cards, sound cards, and network cards, to the computer. The length of the slot allows for larger expansion cards to be installed, while the white color is a common design choice for differentiating them from other types of slots, such as PCIe or AGP slots. Therefore, the statement "PCI slots are the longer white slots" is correct.

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39.

PCI expansion cards often require two types of voltage (i.e. 3.3v and 5v) and have pins that are keyed for such. If the card doesn't fit, likely the slot doesn't support the card
- True
- False
Correct Answer

A. True

Explanation

PCI expansion cards often require two types of voltage, 3.3v and 5v, and have pins that are specifically designed for each voltage. If a PCI card does not fit into a slot, it is likely that the slot does not support the required voltage for the card. Therefore, the statement "If the card doesn't fit, likely the slot doesn't support the card" is true.

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40.

AGP slots are brown and a little smaller than PCI
- True
- False
Correct Answer

A. True

Explanation

AGP slots are indeed brown and slightly smaller than PCI slots. AGP (Accelerated Graphics Port) is a type of expansion slot specifically designed for graphics cards. It was commonly used in older computer systems before being replaced by PCI Express slots. The brown color and smaller size of AGP slots helped differentiate them from the larger and differently colored PCI slots, making it easier for users to identify and install the correct type of card. Therefore, the statement that AGP slots are brown and smaller than PCI slots is true.

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41.

More and more expansion cards are coming with a small hook that keeps it from popping out of the slot
- True
- False
Correct Answer

A. True

Explanation

Expansion cards are devices that are inserted into slots on a computer's motherboard to provide additional functionality. These cards can sometimes come loose or pop out of the slot due to vibrations or movement. To prevent this, manufacturers have started adding small hooks to the expansion cards that latch onto the slot, keeping the card securely in place. This statement suggests that this trend of adding hooks to expansion cards is increasing, indicating that more and more expansion cards are indeed coming with this feature. Therefore, the answer "True" is correct.

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42.

PCIe is serial communication and is sized in 1x, 2x, 4x, 8x, 16x. 32x.The size of the slot on the motherboard is reflected by the lane size. For instances, a 1x will be very small compared to a 32x
- True
- False
Correct Answer

A. True

Explanation

The explanation for the given correct answer is that PCIe is indeed a serial communication technology and it is available in different sizes such as 1x, 2x, 4x, 8x, 16x, and 32x. The size of the slot on the motherboard corresponds to the lane size of the PCIe slot. Therefore, a 1x slot will be much smaller in size compared to a 32x slot. This statement accurately reflects the relationship between the size of the slot and the lane size of PCIe.

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43.

What interface type is used by the lates high-end video graphics adapters?
- PCI
- PCIe
- AGP
Correct Answer

A. PCIe

Explanation

The latest high-end video graphics adapters use PCIe (Peripheral Component Interconnect Express) interface type. PCIe is a high-speed serial computer expansion bus standard that provides faster data transfer rates and improved performance compared to older interface types like PCI and AGP. PCIe offers increased bandwidth and scalability, making it ideal for demanding graphics applications that require high-speed data transmission.

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44.

SD cards are defines as 2x, 24x, 40x,etc. The x is for 150kbps write time
- True
- False
Correct Answer

A. True

Explanation

The statement is true. SD cards are indeed defined with a speed rating denoted by "x" followed by a number such as 2x, 24x, 40x, etc. This "x" rating represents the write speed of the SD card, specifically 150kbps. Therefore, the statement is correct.

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45.

Regarding LCD Brightness - Canela per square meter (cd/m2) is a brightness setting- more is better, which is important for laptops
- True
- False
Correct Answer

A. True

Explanation

The statement is true because candela per square meter (cd/m2) is a unit of measurement for brightness. A higher value of cd/m2 indicates a brighter display. This is important for laptops as it allows for better visibility and readability of the screen, especially in well-lit environments. Therefore, a higher brightness setting is preferred for laptops to enhance the user experience.

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46.

Contrast ratios in LCDs and plasma - contrast between black and white: larger the ration the better
- True
- False
Correct Answer

A. True

Explanation

The statement is true because in LCDs and plasma displays, the contrast ratio refers to the difference in brightness between the darkest black and the brightest white that the screen can produce. A larger contrast ratio means a greater difference between the two extremes, resulting in a more vibrant and visually appealing image. Therefore, a higher contrast ratio is generally considered better as it enhances the overall picture quality and improves the viewing experience.

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47.

Which of these LCD monitor contrast ratios is better:
- 1:5000 (more is better)
- 1:1000
- 1:1100
Correct Answer

A. 1:5000 (more is better)

Explanation

The higher the contrast ratio of an LCD monitor, the better the image quality and the more vibrant and detailed the colors will appear. A contrast ratio of 1:5000 indicates that the monitor can display a much wider range of colors and shades, resulting in a more immersive and visually appealing experience for the user. In comparison, a contrast ratio of 1:1000 or 1:1100 would not be able to provide the same level of color accuracy and depth.

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48.

Which two video outputs provide digital signals?
- SVGA
- DVI
- HDMI
Correct Answer(s)

A. DVI
A. HDMI

Explanation

DVI and HDMI are the two video outputs that provide digital signals. Both DVI (Digital Visual Interface) and HDMI (High-Definition Multimedia Interface) are capable of transmitting high-quality digital video and audio signals. SVGA, on the other hand, is an analog video output and does not provide a digital signal. Therefore, the correct answer is DVI and HDMI.

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1
49.

Most SATA power connectors have how many pins?
- 4
- 15
- 9
Correct Answer

A. 15

Explanation

Most SATA power connectors have 15 pins. SATA power connectors are used to provide power to SATA hard drives and other SATA devices. These connectors have 15 pins arranged in a specific pattern. The 15-pin configuration allows for the transmission of both power and data signals, making it compatible with SATA devices. This is why 15 is the correct answer.

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Quiz Review Timeline (Updated): May 8, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
May 08, 2024

Quiz Edited by
ProProfs Editorial Team
Nov 06, 2010

Quiz Created by
Lauralew

Networking / Hardware /

802.3 standard is ethernet

Quiz Preview

What speed is Bluetooth 1.0?

Bluetooth 1.2 has better connection and discovery than 1.0

Bluetooth 2.1 has better pairing than 2.0

What speed is Bluetooth 2.0?

VOIP sends digital packets over existing internet connection

Which high-speed network connection uses existing telephone lines?

What technology can transmit telephone calls over packet-based netowrks?

What frequency and speed is 802.11a?

What frequency and speed is 802.11b?

What frequency and speed is 802.11g?

What frequency and speed is 801.11n?

80111g is backwards compatible with 802.11b

You can jumper a hard drive to run at a slower speed to match motherboards that are slower. i.e. 150 Mbps systems and 300/150 Mbps harddrive

DVD rot occurs when humidity causes the chemicals in the DVD to oxidize and distintigrate

What prevents a motherboard from shorting onto a metal case?

What chip on the memory module provides performance information to the computer?

In some cases you might need to install the driver prior to installing the hardware

If your laser printer is producing blurred or smeared print, the issue may be with the fuser.

If a laser printer is producing lines on the output, it may be that the photosensitive drum has a scratch

With a laser printer, the entire page must be built in memory before it starts the printing process

Garbled print usually relates to the printer driver. But, it could also indicate a bad cable.

On newer laptop systems, there isn't a physical LCD switch that tells the laptop when you have shut the case and to power down. The newer systems have an internal magnetic switch that you can't see

Poor light or no display at all indicates the backlights are bad. The inverters need to be replaced.

The inverters convert DC power to AC power.

Laptop antenna wires connections are internal and can often be dislodged during maintenance

A stateful firewall is one that opens a hole to a specific site, and then only allows communication back if it matches the communicatio that went out.

Two factor authentication will include your user name and password, PLUS your fingerprint or a smart card

How can you add full-size adapter cards to a laptop system?

What formerly named PCMCIA adapter type is used in legacy laptop devices?

What is the latest laptop expansion adapter that comes in two sizes: 34mm and 54mm?

What are the three types of laptop expansion slots?

Card Bus expansion cards and PC Cards are not interchangeable. But you sometimes can insert PCMCIA into PC Card slots

Which wireless networking technology can be used from almost any location?

Which networking technology is a good option if 802.11 or wireless broadband isn't available?

Most laptop power adapters are auto switching between 110v and 120v. But sometimes you have to manually configure them

Which modern battery type has a limted service life?

PCI slots are the longer white slots

PCI expansion cards often require two types of voltage (i.e. 3.3v and 5v) and have pins that are keyed for such. If the card doesn't fit, likely the slot doesn't support the card

AGP slots are brown and a little smaller than PCI

More and more expansion cards are coming with a small hook that keeps it from popping out of the slot

PCIe is serial communication and is sized in 1x, 2x, 4x, 8x, 16x. 32x.The size of the slot on the motherboard is reflected by the lane size. For instances, a 1x will be very small compared to a 32x

What interface type is used by the lates high-end video graphics adapters?

SD cards are defines as 2x, 24x, 40x,etc. The x is for 150kbps write time

Regarding LCD Brightness - Canela per square meter (cd/m2) is a brightness setting- more is better, which is important for laptops

Contrast ratios in LCDs and plasma - contrast between black and white: larger the ration the better

Which of these LCD monitor contrast ratios is better:

Which two video outputs provide digital signals?

Most SATA power connectors have how many pins?