Questions and Answers
Which component of a computer might need to have its switch changed when moving from one country to another?
Power supply
What suffix indicates that the capacity of an optical disc is roughly twice that of its standard counterpart?
DL
You are choosing a flash standard for a client. They want the smallest flash cards possible. Which standard should you recommend?
microSD
Which type of USB is reversible?
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Which of the following pin counts has been used in the primary power supply connectors connected to ATX and then to the motherboards?
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Which of the following connections will provide the fastest data transfer speeds for a hard drive?
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Anna, a user, wants to use a laptop outside the house but still remains connected to the Internet. Which of these would be the best choice for her to accomplish this task?
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Which of these uses a single connector to deliver both video and audio without using any conversion adapter?
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To configure two drives for maximum performance, which of the following RAID levels should be used?
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Which of the following types of cables are most likely to be used to connect to an external hard drive?
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A customer wants to save a video stream to the computer for later manipulation or sharing. Which of the following should be used?
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When installing multiple add-on cards of the same type, which type of cards might the user need to bridge together to function as a single unit?
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Which of these is the maximum speed difference between USB 2.0 and USB 3.0 cables?
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You have been asked to configure a RAID 5 system for a client. Which of the following statements is true about RAID 5?
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Which of the following best describes the concept of hot-swappable devices?
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Your goal is to build the fastest computer possible. Which of the following hard drive technologies should you choose for the fastest read performance?
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Which of these refers to the relationship between the horizontal and vertical pixel count that a monitor can display?
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The company photographer is interested in buying a new digital camera. He wants to be able to plug it directly into his laptop to transfer pictures for editing. What type of connector will most likely be on his camera?
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Which of the following types of connectors would you expect to see on the end of a serial cable?
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Lucy has summoned an administrator due to the data center power bill being significantly higher than normal. The administrator explains that a new array was installed for a 20 TB application. Installation of which of the following solutions would provide a new performance benefit and also reduce power consumption in the given scenario?
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Jennifer, a user, needs to extend her computer capacity by connecting external storage devices. Which of the following connectors will allow her to accomplish the task?
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A video editor is building a new system and wants to ensure that there are enough power connectors for their multiple internal drives and video adapters. What should they look for in a PSU?
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VGA cables use what type of signal between the adapter and monitor?
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What are the advantages of using SSDs over traditional magnetic HDDs?
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You have a motherboard with integrated video, and the video fails. You install a video add-on card. Which of the following statements are the most accurate? Each correct answer represents a complete solution. Choose two
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Which of the following statements is true about a video capture card?
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One of your friend with an iPhone 12 needs to charge her device. She asks you to bring a cable for the same. Which of the following connector types should you ensure that the cable has?
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Which of these is the de facto standard for sound cards?
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Which of the following could be used with an analog monitor? Each correct answer represents a complete solution.
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Which of these is the expansion card that users put into a computer allowing the computer to present information on some kind of display?
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Study Notes
Hardware Components
- The power supply component of a computer might need its switch changed when moving from one country to another.
- Optical discs with a "DL" (Double Layer) suffix have a capacity roughly twice that of their standard counterpart.
Flash Storage
- The smallest flash cards possible are MicroSD cards.
- USB Type-C is a reversible type of USB.
Motherboard and Power Supply
- The primary power supply connectors connected to ATX and then to the motherboards have 24-pin counts.
- SATA connections provide the fastest data transfer speeds for hard drives.
Networking and Internet
- For a user to remain connected to the Internet while using a laptop outside the house, cellular networks or mobile hotspots are the best choice.
- HDMI connections use a single connector to deliver both video and audio without using any conversion adapter.
RAID and Storage
- To configure two drives for maximum performance, RAID 0 should be used.
- eSATA cables are most likely to be used to connect to an external hard drive.
- Capture cards are used to save a video stream to the computer for later manipulation or sharing.
Expansion Cards and Bridging
- When installing multiple add-on cards of the same type, bridging might be needed to function as a single unit.
- The maximum speed difference between USB 2.0 and USB 3.0 cables is 400 MB/s.
RAID 5
- RAID 5 is a disk striping with parity, which provides both data striping and error correction.
Hot-Swappable Devices
- Hot-swappable devices are those that can be connected or disconnected without shutting down the system.
Hard Drive Technologies
- Solid-State Drives (SSDs) provide the fastest read performance.
- Aspect ratio refers to the relationship between the horizontal and vertical pixel count that a monitor can display.
Camera Connectors
- Digital cameras typically have a USB connector to transfer pictures to a laptop for editing.
Serial Cables
- Serial cables typically have a DB-9 connector on the end.
Power Consumption and Solutions
- Installing a solid-state drive (SSD) array would provide a new performance benefit and reduce power consumption in the given scenario.
External Storage
- USB connectors allow users to extend their computer capacity by connecting external storage devices.
Power Supply and Power Connectors
- A video editor should look for a PSU with enough power connectors for their multiple internal drives and video adapters.
Video Signals and Cables
- VGA cables use analog signals between the adapter and monitor.
- SSDs have advantages over traditional magnetic HDDs, including faster read and write speeds, lower power consumption, and higher durability.
Integrated Video and Video Add-on Cards
- If a motherboard's integrated video fails, installing a video add-on card can be a solution.
Video Capture Cards
- Video capture cards allow users to capture video streams for later manipulation or sharing.
iPhone Charging
- iPhone 12 needs a Lightning connector to charge.
Sound Cards and Standards
- The de facto standard for sound cards is PCI.
Analog Monitors
- VGA connections can be used with analog monitors.
Expansion Cards and Displays
- Graphics cards are the expansion cards that allow computers to present information on a display.
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