Infrastructure Flashcards
What is attenuation in the context of Wi-Fi signals?
The loss of signal strength as you move away from the router
Why might a computer crash frequently?
A bad memory stick
LAB
What is a SOHO network?
A network for small offices or home offices
Which of the following BEST describes smart lights?
They allow you to set a lighting schedule and power them on and off when you are away from home.
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What does hot-swappable mean for USB devices?
You can add or remove them while the system is running.
Which term describes the small wires that connect the areas of a motherboard?
Bus
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What do laser printers use to print images?
Toner
What is the purpose of setting an IP address on a printer?
To connect to a local area network (LAN)
What are the two main types of printers?
Laser and Inkjet
What is the role of a hypervisor in virtualization?
It manages the virtual machine environment and facilitates interaction with the host hardware and network.
Which type of connector is becoming most common for new and high-quality devices?
USB Type C
LAB
What type of memory is the UEFI stored on?
ROM
What equipment is required for satellite Internet?
Satellite dish, modem, and router
Which of the following is a short-term storage device?
RAM
What happens when you connect your mobile device to Bluetooth earbuds?
You create a personal area network (PAN)
What does a cable tester do?
Checks if a cable is working
What is the term for the device that converts fiber optic signals into a form that devices can understand?
Fiber Optical Network Terminal
What is a key advantage of Hard Disk Drives (HDDs) over Solid State Drives (SSDs) in terms of storage size?
HDDs can store more data than SSDs.
A small business has doubled in size over the past year. The company’s IT consultant is recommending the addition of a computing device that will provide central access to business resources.
Which of the following terms describes the type of device needed?
Sever
What is a peer-to-peer relationship in networking?
Both computers can request and provide resources
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What is an example of how automation is helping those with disabilities?
By allowing them to use computers to move a cursor with their thoughts.
What is one of the main functions of a UPS?
To protect sensitive electronics from electrical spikes and surges
LAB
LAB
Which protocol was created for transferring data to and from SSDs?
NVMe
What is the main function of a modem?
To translate signals from the ISP into a form your devices can understand
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During a science project presentation on IoT devices, Sarah explains how some devices can help conserve water.
Which IoT device is she most likely talking about?
Smart sprinklers that adjust watering based on weather forecasts
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What is the significance of frame rate in video output?
It affects how smooth graphics and animations appear
How does a hypervisor manage the CPU for virtual machines?
It divides the real CPU so multiple virtual machines can use it.
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What is the main advantage of HDMI over older connections like VGA?
HDMI can carry both audio and video.
What property of radio waves is described as the height of peaks and the depth of troughs?
Amplitude
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What tool is used to connect an RJ-45 cable to its clip?
Crimper
Why are internet protocols like TCP/IP important?
They allow different networks to communicate with each other.
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What type of hypervisor is needed to use virtualization on an existing OS?
Type II hypervisor
What can the hypervisor do if a virtual machine needs more memory?
It can assign more memory from the real computer to the virtual machine.
What is one benefit of cloud storage?
It can expand or contract based on your needs
What is the significance of frame rate in video output?
It affects how smooth graphics and animations appear
What is the purpose of network protocols?
To create a common set of rules for network communication
What is an intranet?
A private LAN for a company or organization
Which of the following are optical storage devices? (Select three.)
Dvd, cd, Blue ray disc
Which of the following best describes a Wide Area Network (WAN)?
A network that spans a large geographical area, often connecting multiple smaller networks
What format uses four sets of numbers with periods between them to represent an IP address?
Dotted decimal notation
The Institute of Electrical and Electronics Engineers (IEEE) established what standards for wireless communications?
802.11
Which type of cable is most commonly found inside houses?
Twisted pair copper wire
What feature allows switches to send electricity through Ethernet cables?
PoE
What is the purpose of video memory in a GPU?
To process picture information quickly
What is the purpose of setting an IP address on a printer?
To connect to a local area network (LAN)
What type of connection do most wired NICs use?
RJ-45
What does LAN stand for?
Local Area Network
What is one way cloud storage can help with collaboration?
It allows you to share files and set permissions.
How is the 2.4 GHz frequency better than the 5 GHz frequency?
It can travel longer distances.
What hardware component processes data?
Central Processing Unit
How do robots help keep miners safe?
By exploring and mapping areas that are too dangerous for humans
What unit is used to measure latency?
Milliseconds (ms)
What is peer-to-peer architecture?
A system where every device can act as both a client and a server
What is the main difference between ADSL and SDSL?
ADSL has faster download speeds than upload speeds, while SDSL has equal download and upload speeds.
What is a soft robot?
A robot designed to handle delicate items gently with flexible materials
What is a downside to using VR headsets?
They cause motion sickness.
Which type of memory is non-volatile?
ROM
Why is it better to have more than two memory slots on a motherboard?
It allows for easier and cheaper memory upgrades
Which 802.11 standard was the first to allow more than one frequency band?
802.11n
What is latency?
The time it takes for a signal to travel from your computer to the internet server.
What is a “sandbox” in the context of virtual servers?
A virtual environment for testing new apps and programs safely.
Which of the following BEST describes smart speakers?
They are voice-controlled devices that allow you control over other devices in your home.
Why is it important to know the differences between ISPs in your area?
To choose the best one for your needs
Why is RAM an example of a volatile storage device?
Data stored in RAM is only stored as long as there is a power source sending constant power to the chip.
What is the primary function of a firewall?
To filter network traffic
What is one advantage of using multiple guest OSs on a single physical computer?
They can perform different tasks independently
What is the Internet?
A system of computer networks all over the world talking to each other
What happens when you connect your mobile device to Bluetooth earbuds?
You create a personal area network (PAN)
Why do most Wi-Fi routers support multiple standards?
To ensure compatibility with both old and new devices
Which interface is most commonly used to connect storage to a computer motherboard?
SATA
What is a Network Attached Storage (NAS)?
A storage device connected to a local area network
What hardware component processes data?
Central Processing Unit
What is a Type I hypervisor?
A hypervisor installed directly on the computer and interacts with its hardware.
What is the primary function of a motherboard in a computer?
To link all the parts together and send electrical signals between them
Which of the following uses persistent flash memory chips to store data?
SSD
What should you be cautious of when downloading drivers from websites other than the manufacturer’s?
Corrupt software or malware
What is the main function of a projector when connected to a computer?
To display the computer screen to a larger audience
In a client-server model, what role does the server play?
It fulfills client requests
What is a hybrid cloud
A combination of public and private cloud models
What are the three types of cables that carry Internet data?
Fiber optic cable, coaxial cable, and twisted pair copper wire
How do enterprise APs typically connect to the main network?
Using an Ethernet cable
How is the 5 GHz frequency better than the 2.4 GHz frequency?
It has less interference from other devices
Which cloud service model is best for businesses that want to save money and time by not handling physical servers themselves?
Infrastructure as a Service (IaaS)
Which term is used to describe companies who offer cloud storage in their data centers?
Cloud storage providers
Why is it important to know the exact make and model of your hardware when installing drivers?
To find the correct driver
What property of radio waves is described as the height of peaks and the depth of troughs?
Amplitude
After changing the signal, where does the modem send the signal?
To the router
What is an intranet?
A private LAN for a company or organization
What is a virtual machine (VM)?
A guest operating system installed on a host computer using virtualization software.
What is the role of a firewall in a LAN?
To block unauthorized access
What is Virtual Reality (VR) primarily used for?
Gaming and training
