802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）A、460 feet (140 meters)B、540 feet (165 meters)C、560 feet (171 meters)D、840 feet (256 meters)

题目

802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）

  • A、460 feet (140 meters)
  • B、540 feet (165 meters)
  • C、560 feet (171 meters)
  • D、840 feet (256 meters)
相似考题

1.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?()A. 460 feet (140 meters)B. 540 feet (165 meters)C. 560 feet (171 meters)D. 840 feet (256 meters)

2.Users are unable to stay connected to the company‘s wireless network. Several times throughoutthe day the users‘ signals are dropped and they are forced to reconnect to the network.A technician determines the network cabling that supplies the WAP has been run inside with severalpower lines.Which of the following is the MOST likely cause of the network issue?（）A.AshortB.Open pairsC.ESDD.EMI

3.Which statement concerning locating signals in the GMDSS is FALSE ________．A.Locating signals are transmitted by survival craft VHF transceiversB.Locating signals are transmitted by SARTsC.Locating signals are intended to facilitate the finding of a distressed vessel or its survivorsD.Locating signals are not transmitted by autoalarm generators

4.An administrator receives reports from users in an office that their 802.11g wireless connectivityhas been problematic since the installation of the new wireless phone system.At which of the following frequencies are both systems operating at to cause this issue?（）A.2.4GHzB.900MHzC.1.1GHzD.5GHz

更多“802.11g wireless signals operati”相关问题

  • 第1题：

    下面属于5GNR下行链路reference-signal的是（）

    • A、Demodulation-reference-signals-for-PDSCH
    • B、Phase-tracking-reference-signals-for-PDSCH
    • C、Demodulation-reference-signals-for-PDCCH
    • D、Demodulation-reference-signals-for-PBCH
    • E、CSIreference-signals

    正确答案:A,B,C,D,E

  • 第2题：

    A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem (Choose three.)（）。

    • A、mismatched TKIP encryption
    • B、null SSID
    • C、cordless phones
    • D、mismatched SSID
    • E、metal file cabinets
    • F、antenna type or direction

    正确答案:C,E,F

  • 第3题：

    Wireless components must work together for interoperability and performance. Which standard has specifications that are 2.4 GHz， 54 Mb/s， and a range of 150 feet？（）  

    • A、 802.11n
    • B、 802.11b
    • C、 802.11a
    • D、 802.11g

    正确答案:D

  • 第4题：

    WLAN（Wireless LAN）是计算机网络与无线通信技术相结合的产物。下列哪些属于WLAN 技术标准？（）

    • A、802.11a
    • B、802.11b
    • C、802.11c
    • D、802.11g

    正确答案:A,B,D

  • 第5题：

    A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.) （）

    • A、mismatched TKIP encryption  
    • B、null SSID  
    • C、cordless phones 
    • D、mismatched SSID  
    • E、metal file cabinets
    • F、antenna type or direction 

    正确答案:C,E,F

  • 第6题：

    A company has installed a new 802.11g point-to-point connection between two buildings and isexperiencing low throughput across the link. The current setup involves a wireless bridge on the roof with an omni-directional antenna. Which of the following would BEST improve the link performance?（）

    • A、Replace the wireless bridges with wireless access points.
    • B、Install bi-directional amplifiers at both sites.
    • C、Configure channel hopping on both wireless bridges.
    • D、Replace the omni-directional antennas with Yagi antennas

    正确答案:D

  • 第7题：

    Which of the following is an advantage of a 100Base-T network card versus an 802.11g wireless network card?（）

    • A、Flexibility in relocating the computer
    • B、Ability to provide secure data communications
    • C、Faster data speed
    • D、Ability to setup P2P networking

    正确答案:C

  • 第8题：

    多选题
    What are two ways in which the Cisco Security Monitoring， Analysis， and Response System provides superior network protection？ （）
    A

    reports financial losses from attacks

    B

    providessecutiy command and control

    C

    provides VPN connectivity to clients

    D

    expedites reporting of incidents

    E

    manage rogue wireless signals


    正确答案： D,A
    解析： 暂无解析

  • 第9题：

    单选题
    802.11g wireless signals operating at 24GHz has a maximum line of sight range of which of thefollowing?（）
    A

    460 feet (140 meters)

    B

    540 feet (165 meters)

    C

    560 feet (171 meters)

    D

    840 feet (256 meters)


    正确答案： D
    解析： 暂无解析

  • 第10题：

    问答题
    The study was means to examine how the brain reacts to electromagnetic fields caused by wireless phone signals.

    正确答案：
    解析：

  • 第11题：

    单选题
    If there is an existing 802.11g WLAN at a site， which service can be provided without conducting anew site survey？（）
    A

    Add a new 802.11a WLAN

    B

    Increase the Layer 2 and Layer 3 security of the WLAN

    C

    Increase the throughput for the wireless clients

    D

    Add new services （such as voice） over the WLAN


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Which statement concerning locating signals in the GMDSS is FALSE（）.
    A

    Locating signals are transmitted by survival craft VHF transceivers

    B

    Locating signals are transmitted by SARTs

    C

    Locating signals are intended to facilitate the finding of a distressed vessel or its survivors

    D

    Locating signals are not transmitted by autoalarm generators


    正确答案： A
    解析： 暂无解析

  • 第13题：

    What are two ways in which the Cisco Security Monitoring， Analysis， and Response System provides superior network protection？ （）

    • A、 reports financial losses from attacks
    • B、 providessecutiy command and control
    • C、 provides VPN connectivity to clients
    • D、 expedites reporting of incidents
    • E、 manage rogue wireless signals

    正确答案:B,D

  • 第14题：

    Which wireless technology would A customer choose to position them for bandwidth-intensive applications?（）

    • A、802.11x
    • B、802.11a
    • C、802.11n
    • D、802.11g

    正确答案:C

  • 第15题：

    Which of the following wireless standards has the highest maximum data rate?（）

    • A、802.11n
    • B、802.11b
    • C、802.11a
    • D、802.11g

    正确答案:A

  • 第16题：

    The Company wireless network is using 802.11G access points.  Which two statements are true  about these access points？ （）

    • A、 It supports eight different data rates.
    • B、 It is fully backward compatible with 802.11b
    • C、 It provides the same network throughput with 802.11b clients， 802.11g clients， or a mixed  environment where both clients are present.
    • D、 It is only compatibly with the 11 Mbps 802.11b transfer rate.
    • E、 It has three non-overlapping channels in its channel options.

    正确答案:B,E

  • 第17题：

    Users are unable to stay connected to the company's wireless network. Several times throughout the day the users' signals are dropped and they are forced to reconnect to the network. A technician determines the network cabling that supplies the WAP has been run inside with several power lines. Which of the following is the MOST likely cause of the network issue?（）

    • A、Ashort
    • B、Open pairs
    • C、ESD
    • D、EMI

    正确答案:D

  • 第18题：

    An administrator receives reports from users in an office that their 802.11g wireless connectivity has been problematic since the installation of the new wireless phone system. At which of the following frequencies are both systems operating at to cause this issue?（）

    • A、2.4GHz
    • B、900MHz
    • C、1.1GHz
    • D、5GHz

    正确答案:A

  • 第19题：

    单选题
    Wireless components must work together for interoperability and performance. Which standard has specifications that are 2.4 GHz， 54 Mb/s， and a range of 150 feet？（）
    A

     802.11n

    B

     802.11b

    C

     802.11a

    D

     802.11g


    正确答案： B
    解析： 暂无解析

  • 第20题：

    多选题
    The Company wireless network is using 802.11G access points.  Which two statements are true  about these access points？ （）
    A

    It supports eight different data rates.

    B

    It is fully backward compatible with 802.11b

    C

    It provides the same network throughput with 802.11b clients， 802.11g clients， or a mixed  environment where both clients are present.

    D

    It is only compatibly with the 11 Mbps 802.11b transfer rate.

    E

    It has three non-overlapping channels in its channel options.


    正确答案： E,A
    解析： 暂无解析

  • 第21题：

    多选题
    A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.) （）
    A

    mismatched TKIP encryption

    B

    null SSID

    C

    cordless phones

    D

    mismatched SSID

    E

    metal file cabinets

    F

    antenna type or direction


    正确答案： B,A
    解析： 暂无解析

  • 第22题：

    多选题
    A single 802.11g access point has been configured and installed in the center of a square officE.A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? （）
    A

    mismatched TKIP encryption

    B

    null SSID

    C

    cordless phones

    D

    mismatched SSID

    E

    metal file cabinets

    F

    antenna type or direction


    正确答案： A,E
    解析： 暂无解析

  • 第23题：

    单选题
    You are designing the wireless networks for the three warehouses. Your design must support the inventory and shipping management solution， and it must meet security requirements. What should you do？（）
    A

    Ensure that all wireless networking equipment fully supports the IEE 802.11a， IEEE 802.11b， and IEEE 802.11g wireless networking protocols

    B

    Assign a random service set identifier （SSID） to each wireless access point. Disable broadcasting of SSIDs on all wireless access points

    C

    Create a firewall to block traffic to any IP address that did not originate from the company’s DHCP servers. Ensure that all wireless access points connect behind this new firewall

    D

    Configure a server to use Internet Authentication Service （IAS）. Configure the wireless networking equipment to use the IEEE 802.1x protocol and the IAS server


    正确答案： D
    解析： 暂无解析

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