Wireless LAN Technology Overview
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Questions and Answers

What does CAPWAP stand for in the context of wireless networks?

  • Connection and Privacy of Wireless Access Points
  • Centralized Access Point Wireless Architecture Protocol
  • Control and Provisioning of Wireless Access Points (correct)
  • Channel Allocation and Provisioning of Wireless Access Points

    • Which of the following best describes the function of DTLS in a WLAN?

  • Ensures security between the access point and the wireless LAN controller (correct)
  • Manages network traffic between multiple wireless devices
  • Facilitates connection between the user device and the internet
  • Provides high-speed data transmission

    • Which wireless technology operates primarily in the 2.4 GHz frequency band?

  • Bluetooth (correct)
  • Satellite Broadband
  • Cellular Broadband
  • WiMAX

    • Which organization is NOT one of the three major influencers of WLAN standards?

    <p>ISO</p> Signup and view all the answers

    What is a key feature of WPA3 security in wireless networks?

    <p>It enhances security for open networks by using individualized data encryption.</p> Signup and view all the answers

    Which feature is commonly used to prevent unauthorized access to a wireless network?

    <p>MAC address filtering</p> Signup and view all the answers

    Which of the following is the latest security protocol for wireless networks?

    <p>WPA3</p> Signup and view all the answers

    What does the CAPWAP protocol primarily facilitate?

    <p>Communication between access points and controllers</p> Signup and view all the answers

    What standard is often associated with RADIUS for authentication in a wireless network?

    <p>IEEE 802.1X</p> Signup and view all the answers

    What wireless technology uses a control system for better data management?

    <p>Lightweight AP</p> Signup and view all the answers

    Which technique can be used to enhance the security of WPA2?

    <p>Temporal Key Integrity Protocol (TKIP)</p> Signup and view all the answers

    What is the main characteristic of a Wireless Personal-Area Network (WPAN)?

    <p>Utilizes low power and has a short range of 20-30 feet.</p> Signup and view all the answers

    Which of the following is NOT a wireless technology standard mentioned?

    <p>Ethernet</p> Signup and view all the answers

    Which technology is primarily associated with medium-sized networks of up to about 300 feet?

    <p>Wireless Local Area Network (WLAN)</p> Signup and view all the answers

    Which frequency bands are used by Wireless LAN (WLAN)?

    <p>Both 2.4 GHz and 5.0 GHz frequency bands.</p> Signup and view all the answers

    Which encryption method is used in WPA3 for enhanced security?

    <p>Advanced Encryption Standard (AES)</p> Signup and view all the answers

    In wireless networks, what does the term 'SSID' stand for?

    <p>Service Set Identifier</p> Signup and view all the answers

    What is a key feature of Bluetooth Low Energy (BLE)?

    <p>Supports mesh topology for large-scale network devices.</p> Signup and view all the answers

    What is a function of using MAC address filtering in wireless security?

    <p>Allowing only designated devices to connect</p> Signup and view all the answers

    Which statement accurately describes Wireless WAN (WWAN)?

    <p>It provides extensive geographic coverage for national or global communication.</p> Signup and view all the answers

    Which of the following devices would typically use Bluetooth technology?

    <p>A personal fitness tracker syncing with a smartphone.</p> Signup and view all the answers

    What type of device communication does the Bluetooth Basic Rate/Enhanced Rate (BR/EDR) optimize for?

    <p>Audio streaming in point-to-point topologies.</p> Signup and view all the answers

    What distinguishes Wireless MAN (WMAN) from other types of wireless networks?

    <p>It serves large geographic areas like cities or districts.</p> Signup and view all the answers

    What is the primary purpose of the IEEE 802.11 WLAN standards?

    <p>To establish how radio frequencies are used for wireless links.</p> Signup and view all the answers

    Which wireless technology is primarily used in rural areas where other broadband options are not available?

    <p>Satellite Broadband</p> Signup and view all the answers

    What does Global System of Mobile (GSM) primarily represent?

    <p>An internationally recognized mobile communication standard.</p> Signup and view all the answers

    Which protocol is commonly associated with cellular voice and data transmission?

    <p>Code Division Multiple Access (CDMA)</p> Signup and view all the answers

    What requirement does Satellite Broadband typically have for its operation?

    <p>It requires a clear line of sight to the satellite.</p> Signup and view all the answers

    What type of devices typically use Cellular Broadband?

    <p>Phones, automobiles, tablets, and laptops</p> Signup and view all the answers

    What is one characteristic of the IEEE 802.16 standard?

    <p>It supports a range of up to 30 miles (50 km).</p> Signup and view all the answers

    What does WPA3 primarily enhance in wireless networks?

    <p>Security features for wireless connections.</p> Signup and view all the answers

    Which of the following standards is primarily used for port-based network access control?

    <p>RADIUS Authentication</p> Signup and view all the answers

    What does the CAPWAP protocol primarily facilitate?

    <p>Management and control of access points in a wireless network.</p> Signup and view all the answers

    Which organization is responsible for regulating the allocation of radio spectrum and satellite orbits?

    <p>International Telecommunication Union (ITU)</p> Signup and view all the answers

    What is the primary purpose of the Wi-Fi Alliance?

    <p>To promote the growth and acceptance of WLANs</p> Signup and view all the answers

    Which standard is maintained by the IEEE for local and metropolitan area networks?

    <p>IEEE 802</p> Signup and view all the answers

    Which frequency band is associated with the 802.11b/g/n/ax wireless standards?

    <p>2.4 GHz</p> Signup and view all the answers

    What does the IEEE specifically specify regarding radio frequencies?

    <p>Modulation techniques for carrying information</p> Signup and view all the answers

    Which of the following wireless standards operates at the 5 GHz band?

    <p>802.11a</p> Signup and view all the answers

    What does the acronym CAPWAP stand for?

    <p>Control and Provisioning of Wireless Access Points</p> Signup and view all the answers

    Which feature is part of the WPA3 security protocol?

    <p>Individualized data encryption</p> Signup and view all the answers

    What is the primary function of the 802.1X standard?

    <p>To provide port-based network access control</p> Signup and view all the answers

    What is the significance of WLAN standards?

    <p>They ensure interoperability between devices of different manufacturers</p> Signup and view all the answers

    Study Notes

    Wireless Networks and Mobility

    • WLANs enable mobility in home and business settings, adapting to changing needs and technology.

    Types of Wireless Networks

    • WPAN (Wireless Personal-Area Network): Short-range (20-30 ft or 6-9 m), based on IEEE 802.15. Examples include Bluetooth and Zigbee.
    • WLAN (Wireless Local Area Network): Medium range, up to about 300 ft, based on IEEE 802.11.
    • WMAN (Wireless Metropolitan Area Network): Covers larger areas (cities/districts) using specific licensed frequencies.
    • WWAN (Wireless Wide Area Network): Great for national/global communication with specific licensed frequencies.

    Wireless Technologies

    • Bluetooth: Utilizes IEEE WPAN for device pairing up to 300 ft (100 m); includes BLE for mesh networks and BR/EDR for audio streaming.
    • WiMAX: Provides broadband internet connections over long distances using the IEEE 802.16 standard, covering up to 30 miles (50 km).
    • Cellular Broadband: Integrates voice and data for mobile devices, including GSM (global standard) and CDMA (commonly used in the US).
    • Satellite Broadband: Requires directional dishes, ideal for rural locations lacking cable/DSL connections.

    802.11 Standards

    • 802.11 standards dictate radio frequency usage for wireless links, including security features like SSID cloaking and MAC address filtering.
    • Supported authentication techniques include WEP, WPA, WPA2, and WPA3.

    New Terms and Commands

    • Key terminologies include WPAN, WLAN, WMAN, WWAN, Bluetooth, 802.11 standards, SSID, and various wireless security protocols like WPA and AES.

    Wireless Standards Organizations

    • ITU (International Telecommunication Union): Regulates radio spectrum allocation and satellite orbits.
    • IEEE (Institute of Electrical and Electronics Engineers): Establishes specifications for radio frequency modulation, governs LAN/MAN standards.
    • Wi-Fi Alliance: Promotes WLAN growth and interoperability among devices.

    WLAN Components and Functionality

    • WLANs utilize unlicensed radio spectrum for data transmission using various technologies.
    • Operate on the 2.4 GHz and 5 GHz frequency bands.
    • CAPWAP allows Wireless LAN Controllers to manage multiple Access Points.
    • DTLS ensures security between Access Points and the Controller.

    Wireless Transmission Basics

    • Wireless devices use specific radio frequency channels (DSSS, FHSS, OFDM) to transmit and receive data.
    • 802.11b/g/n standards utilize frequencies between 2.4 GHz and 2.5 GHz, with each channel having 22 MHz bandwidth and 5 MHz separation.

    Security and Threats

    • Wireless networks face risks like data interception, unauthorized access, DoS attacks, and rogue Access Points.

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    Related Documents

    SRWE_Module_12_WLAN_Concept.pdf

    Description

    Explore the basics of Wireless LANs (WLANs) and their impact on mobility in both home and business settings. This quiz covers how wireless infrastructures adapt to meet evolving needs and technologies. Test your knowledge and understanding of wireless networking.

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