单选题Which of the following wireless technologies can operate at only 5GHz?（）A 802.11b/gB 802.11gC 802.11bD 802.11a

题目
单选题
Which of the following wireless technologies can operate at only 5GHz?（）
A

802.11b/g

B

802.11g

C

802.11b

D

802.11a

相似考题

1.Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?()A.802.11aB.802.11bC.802.11gD.802.11n

2.Which of the following wireless technologies can operate at only 5GHz?()A.802.11b/gB.802.11gC.802.11bD.802.11a

3.The Cisco 521 Wireless Express Access Point used in the Smart Business Communications System can be configured to operate in which mode?（）A、controller-based mode onlyB、either standalone mode or controller-based modeC、standalone mode only

4.An administrator is troubleshooting wireless connectivity issues at a client’s office and discoversthat the machine loses connectivity when the wireless phone is being used. Which of the following WAPS should be installed to help resolve the issue?（）A. 802.1 1gB. 802.1XC. 802.11nD. 802.11b

更多“单选题Which of the following wireless technologies can operate at only 5GHz?（）A 802.11b/gB 802.11gC 802.11bD 802.11a”相关问题

  • 第1题：

    802.11a、802.11b和802.11g的区别是什么？（）

    • A、802.11a和802.11b都工作在2.4GHz频段，而802.11g工作在5GHz频段
    • B、802.11a具有最大54GHbps带宽，而802.11g和802.11b只有1Mbps带宽
    • C、802.11a的传输距离最远其次是802.11b，传输距离最近的是802.11g
    • D、802.11a可以兼容802.11b，但802.11a和802.11b不能兼容

    正确答案:D

  • 第2题：

    An administrator is troubleshooting wireless connectivity issues at a client’s office and discoversthat the machine loses connectivity when the wireless phone is being used. Which of the following WAPS should be installed to help resolve the issue?（）

    • A、802.1 1g
    • B、802.1X
    • C、802.11n
    • D、802.11b

    正确答案:C

  • 第3题：

    Which of the following wireless networking standards can operate at two different frequenciessimultaneously?（）

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

    正确答案:D

  • 第4题：

    Which of the following wireless technologies can operate at only 5GHz?（）

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

    正确答案:D

  • 第5题：

    Which of the following technologies is the MOST secure form of wireless encryption?（）

    • A、SSL
    • B、WPA
    • C、WEP
    • D、TLS

    正确答案:B

  • 第6题：

    Which of the following wireless standards has a MAXIMUM throughput, by default, of 11Mbps?（）

    • A、802.11g
    • B、802.11a
    • C、802.1n
    • D、802.11b

    正确答案:D

  • 第7题：

    Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?（）

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

    正确答案:D

  • 第8题：

    单选题
    Which of the following wireless technologies can operate at only 5GHz?（）
    A

    802.11b/g

    B

    802.11g

    C

    802.11b

    D

    802.11a


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    The Cisco 521 Wireless Express Access Point used in the Smart Business Communications System can be configured to operate in which mode?（）
    A

    controller-based mode only

    B

    either standalone mode or controller-based mode

    C

    standalone mode only


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    A technician is working on a SOHO wireless network and notices that the wireless adaptor in the laptop shows excellent connection at 11Mbps. The technician has a wireless N adaptor. Which of the following would BEST describe this connection speed?（）
    A

    The laptop is too far away from the WAP.

    B

    The WAP is using 802.11a frequencies.

    C

    The laptop is only set to allow 802.11n connections.

    D

    The technician is on an 802.11b network.


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    An administrator is implementing a wireless network. Which of the following encryption technologies is the MOST secure method and will authenticate devices to the network?（）
    A

    SSH

    B

    WEP

    C

    VPN

    D

    WPA


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    A user would like to ensure that only their family and their laptops can access a newly installed wireless router. Which of the following BEST accomplishes this?（）
    A

    MAC filtering

    B

    Disable DHCP

    C

    Static IP addresses

    D

    Port forwarding


    正确答案： C
    解析： 暂无解析

  • 第13题：

    Which of the following wireless technologies is primarily setup for video/audio and the frequency is 5 GHz?（）

    • A、Cellular
    • B、802.11a
    • C、802.11b
    • D、Satellite

    正确答案:B

  • 第14题：

    Which of the following wireless standards uses the 5GHz frequency?（）

    • A、802.11g
    • B、802.2
    • C、802.11a
    • D、802.3

    正确答案:C

  • 第15题：

    Which of the following has a maximum data rate of 11Mbps?（）

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

    正确答案:C

  • 第16题：

    Which statement describes the call behavior of the Cisco Unified Wireless IP Phone 7921G when it roams from 802.11b to 802.11a?（）

    • A、The phone does a directed call hangup on 802.11b，then does an auto-redial on 802.11a，creating a  new call.
    • B、The phone does a directed call hangup on 802.11b， then the user does a redial on 802.11a，creating a  new call.
    • C、The phone does a disassociation on 802.11b and an association on 802.11a，and call remains up if the  subnet has not changed.
    • D、The phone does not roam from 802.11b to 802.11a when on an active call.
    • E、The phone must switch network profiles to roam from 802.11b to 802.11a.

    正确答案:C

  • 第17题：

    A technician is working on a SOHO wireless network and notices that the wireless adaptor in the laptop shows excellent connection at 11Mbps. The technician has a wireless N adaptor. Which of the following would BEST describe this connection speed?（）

    • A、The laptop is too far away from the WAP.
    • B、The WAP is using 802.11a frequencies.
    • C、The laptop is only set to allow 802.11n connections.
    • D、The technician is on an 802.11b network.

    正确答案:D

  • 第18题：

    Which of the following wireless standards can be used to avoid the 2.4GHz range?（） (Select TWO).

    • A、802.11g
    • B、802.1X
    • C、802.11b
    • D、802.1n
    • E、802.11a

    正确答案:D,E

  • 第19题：

    Which of the following wireless standards was the FIRST standard to be ratified and is used to support legacy wireless devices?（）

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

    正确答案:C

  • 第20题：

    单选题
    Which of the following technologies is the MOST secure form of wireless encryption?（）
    A

    SSL

    B

    WPA

    C

    WEP

    D

    TLS


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    Which of the following wireless standards uses the 5GHz frequency?（）
    A

    802.11g

    B

    802.2

    C

    802.11a

    D

    802.3


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    Which of the following wireless networking standards can operate at two different frequenciessimultaneously?（）
    A

    802.11a

    B

    802.11b

    C

    802.11g

    D

    802.11n


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Which statement describes the call behavior of the Cisco Unified Wireless IP Phone 7921G when it roams from 802.11b to 802.11a?（）
    A

    The phone does a directed call hangup on 802.11b，then does an auto-redial on 802.11a，creating a  new call.

    B

    The phone does a directed call hangup on 802.11b， then the user does a redial on 802.11a，creating a  new call.

    C

    The phone does a disassociation on 802.11b and an association on 802.11a，and call remains up if the  subnet has not changed.

    D

    The phone does not roam from 802.11b to 802.11a when on an active call.

    E

    The phone must switch network profiles to roam from 802.11b to 802.11a.


    正确答案： C
    解析： 暂无解析

  • 第24题：

    单选题
    Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies?（）
    A

    802.11a

    B

    802.11b

    C

    802.11g

    D

    802.11n


    正确答案： D
    解析： 暂无解析

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