Examining Wireless Appliances Flashcards

1
Q

What are wireless appliances?

A

Devices that enable and facilitate wireless connectivity within a network

Examples include Access Points (APs), wireless range extenders, and wireless bridges.

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2
Q

What role do Access Points (APs) play in a wireless network?

A

Central hubs that transmit and receive wireless signals, crucial for forming the wireless network infrastructure.

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3
Q

What is the function of wireless range extenders?

A

Devices that expand the wireless network’s coverage area, enhancing signal strength and reach.

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4
Q

What are wireless bridges used for?

A

Tools used to link different network segments or to extend the reach of a network wirelessly.

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5
Q

What are some benefits of wireless deployments?

A
  • Mobility and flexibility
  • Ease of installation
  • Scalability
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6
Q

What is infrastructure mode in wireless networks?

A

A network setup where communication occurs through an AP, commonly used in Wi-Fi networks.

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7
Q

What are ad-hoc networks?

A

Decentralized network configurations where devices communicate directly with each other without a central AP.

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8
Q

What are stand-alone wireless APs used for?

A

Suitable for a range of environments from small offices.

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9
Q

What is the purpose of wireless controllers?

A

Devices designed to centrally manage and control multiple APs in large network setups.

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10
Q

What are home Wi-Fi systems designed for?

A

Ease of use wireless solutions designed for home environments, emphasizing seamless coverage.

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11
Q

What is an omnidirectional antenna?

A

An antenna that emits and receives signals in all horizontal directions equally, ideal for broad, general coverage.

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12
Q

What does a semi-directional antenna do?

A

Provides a wider coverage area than directional antennas, focusing the signal in a specific direction but over a larger angle.

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13
Q

What is the function of a directional antenna?

A

Focuses energy in a particular direction, offering high gain in that direction, ideal for point-to-point communication.

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14
Q

What is a highly-directional antenna?

A

Provides an extremely focused beam of signal, offering the highest gain in a very narrow direction, often used in long-distance links and specialized applications.

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15
Q

What is a dipole antenna?

A

A simple, widely used antenna with a straight, conductive rod divided in the middle, offering moderate gain and omnidirectional radiation pattern.

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16
Q

What is a Yagi antenna?

A

A directional antenna consisting of multiple parallel elements in a line, offering high gain and widely used for television reception.

17
Q

What is a patch antenna?

A

A low-profile antenna mounted on a flat surface, known for its directional radiation pattern and commonly used in mobile devices and wireless LANs.

18
Q

What is a backfire antenna?

A

A highly directional antenna with a reflector behind the radiating element, offering high gain and reduced backward radiation.

19
Q

What is a parabolic antenna?

A

A high-gain, directional antenna with a parabolic reflector, often used for long-range, point-to-point communication like satellite and radar systems.

20
Q

What is a sector antenna?

A

A type of directional antenna with a sector-shaped radiation pattern, commonly used in cellular base stations for covering a specific angular area.

21
Q

What is a ceiling or dome antenna?

A

An omnidirectional antenna typically mounted on ceilings for indoor wireless coverage, providing uniform signal distribution in all directions.

22
Q

What is a blade antenna?

A

A slim, low-profile antenna with a blade-like shape, often used in aircraft and vehicles for its aerodynamic properties and versatile frequency range.

23
Q

What is an integrated antenna?

A

An omnidirectional antenna, built into the body of a wireless access point.

24
Q

What are some examples of wireless antennas?

A

Dipole, Yagi, Backfire, Sector, Ceiling/Dome, Blade, Integrated.