Which IEEE standard is used to define Wi－Fi?()A. IEEE 802.3B. IEEE 802.5C. IEEE 802.11hD. IEEE 802.11cE. IEEE 802.11

题目
Which IEEE standard is used to define Wi－Fi?()

A. IEEE 802.3

B. IEEE 802.5

C. IEEE 802.11h

D. IEEE 802.11c

E. IEEE 802.11

相似考题

1.● Ethernet is the commonly used local area network communication protocol. The standard of Ethernet is __(72)__.（72）A．IEEE 802.1 B．IEEE 802.2 C．IEEE 802.3 D．IEEE 802.11

2.●Wi-Fi联盟制定的安全认证方案 WPA(Wi-fi Protected Access)是（66）标准的子集。(66）A. IEEE 802.11B. IEEE 802.11aC. IEEE 802.11bD. IEEE 802.11i

3.The(66)is a channel's capacity which directly reflects the data transfer rate of the channel.(67)functions in a NetWare network which is used to define addressing schemes.The(68)is a network layer device that supports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.(69)is the popular LAN developed under the direction of the IEEE802.3.The(70 is a device which enables digital microcomputers to communicate across analog telephone lines.A．volumeB．bandwidthC．noiseD．delay

4.is a channel' s capacity which directly reflects the data transfer rate of the channel.(67)functions in a NetWare network which is used to define addressing schemes.(68)is a network layer device that suports multiple LAN interfaces and segments LANs into smaller collision and broadcast domains.(69)．is the popular LAN develped under the direction of the IEEE 802.3.(70)is a device which enables digital microcomputers to communicate across analog telephone lines.A．The volumeB．The bandwidthC．The noiseD．The delay

更多“Which IEEE standard is used to define Wi－Fi?() ”相关问题

  • 第1题：

    Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?()

    A.Define the column MAINID as NOT UPDATABLE

    B.Define the column MAINID as a PRIMARY KEY

    C.Define the column MAINID as a FOREIGN KEY

    D.Define an UPDATE trigger on table TABLEX


    参考答案：D

  • 第2题：

    Ethernet is the commonly used local area network communication protocol. The standard of Ethernet is （ ） .

    A.IEEE 802.1
    B.IEEE 802.2
    C.IEEE 802.3
    D.IEEE 802.11

    答案：C
    解析：

  • 第3题：

    Wi-Fi联盟制定的安全认证方案WPA（Wi-Fi Protected Access）是　（ ）　标准的子集。

    A.IEEE 802.11
    B.IEEE 802.11a
    C.IEEE 802.11b
    D.IEEE 802.11i

    答案：D
    解析：
    IEEE 802.11i是IEEE 802.11协议标准的扩展，于2004年正式被IEEE通过，取代原来脆弱的WEP加密技术。IEEE 802.11i为使用IEEE 802.11a、IEEE 802.11b和IEEE 802.11g标准的网络提供加密技术和安全认证功能，这样的网络被描述为RSN（Robust Security Network，健壮安全的网络）。

  • 第4题：

    Which of the following is a RF peer to peer mesh protocol used for lighting and other residential electronics？（）

    • A、Z-Wave
    • B、X10
    • C、CEBus
    • D、Wi-Fi

    正确答案:A

  • 第5题：

    Which spread spectrum technology does the 802.11b standard define foroperation？（）

    • A、IR
    • B、DSSS
    • C、FHSS
    • D、DSSS and FHSS
    • E、IR，FHSS，and DSSS

    正确答案:B

  • 第6题：

    Which two statements about the Wi-Fi Multimedia （WMM） standard are true？（）

    • A、 Lower-priority traffic is assigned short interframe wait-timers to allow higher-priority traffic access to the wireless network first.
    • B、 Packets that are not assigned to a specific access category are categorized by default as the background access category.
    • C、 The WMM standard was implemented after the 802.11e standard was approved to provide support for non 802.11e devices.
    • D、 WMM is a Wi-Fi Alliance standard that was implemented before the 802.11e standard was approved.
    • E、 WMM uses Enhanced DCF （EDCF） to stipulate fixed and random wait times for the different access classes.

    正确答案:D,E

  • 第7题：

    Which of the following is a standard IEEE 1394 transmission speed？（）

    • A、 100Mbps
    • B、 400Mbps
    • C、 480Mbps
    • D、 1000Mbps

    正确答案:B

  • 第8题：

    When running a Windows server， which option is used with the ping command to define the number of packets transmitted？（）

    • A、 -n
    • B、 -a
    • C、 -r
    • D、 -v

    正确答案:A

  • 第9题：

    Which of the following can be used to ensure that once a row has been inserted in table TABLEX, the column MAINID in that row cannot be updated?（）

    • A、Define the column MAINID as NOT UPDATABLE
    • B、Define the column MAINID as a PRIMARY KEY
    • C、Define the column MAINID as a FOREIGN KEY
    • D、Define an UPDATE trigger on table TABLEX

    正确答案:D

  • 第10题：

    多选题
    Which two statements are true about the Wi-Fi Protected Access （WPA） and Wi-Fi Protected Access version 2 （WPA2） security solutions？（）
    A

    both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key （PSK）

    B

    both WPA and WPA2 address all known Wired Equivalent Privacy （WEP） vulnerabilities in the IEEE 802.11i security implementation

    C

    WPA is supported on client devices only. WPA2 is supported on both access point （AP） and client devices

    D

    WPA provides only a standard for authentication. WPA2 provides a standard for authentication and encryption

    E

    WPA requires encryption support via Temporal Key Integrity Protocol （TKIP） WPA2 provides encryption support via （symmetric block cipher）AES-CCMP


    正确答案： E,A
    解析： 暂无解析

  • 第11题：

    多选题
    Switch ports operating in which two roles will forward traffic according to the IEEE 802.1w standard?（）
    A

    alternate

    B

    backup

    C

    designated

    D

    disabled

    E

    root


    正确答案： D,C
    解析： 暂无解析

  • 第12题：

    多选题
    What are three security problems with Wi-Fi Protected Access （WPA）？（）
    A

    WPA is based on the outdated IEEE 802.11i standard.

    B

    WPA uses RSN，which uses the same base encryption algorithm as RC4.

    C

    WPA requires a hardware upgrade that may not be supported by all vendors.

    D

    WPA uses TKIP，which uses the same base encryption algorithm as WEP.

    E

    WPA is susceptible to a DoS attack when it receives two packets in quick succession with bad MICs，forcing the AP to shut down the entire Basic Service Set （BSS） for one minute.

    F

    WPA is susceptible to a security weakness when preshared keys are used.


    正确答案： E,F
    解析： 暂无解析

  • 第13题：

    Which spread spectrum technology does the 802.11b standard define for operation()。

    A.IR

    B.DSSS

    C.FHSS

    D.DSSS and FHSS

    E.IR, FHSS, and DSSS


    参考答案：B

  • 第14题：

    Which of the following description is WRONG about Wi-Fi? ( ).

    A.Any standard Wi-Fi device.will work anywhere in the world with global operative set of standards
    B.Now most laptops are built with wireless network adapters inside
    C.One can connect Wi-Fi devices in ad-hoc mode for client-to-client connections without a router
    D.Communications between two devices need the involvement of an access point with Wi-Fi

    答案：D
    解析：
    翻译：

    关于Wi-Fi的描述，错误的是（ ）：

    A．任何标准Wi-Fi设备都可以在世界任何地方工作，采用全球通用的操作标准

    B．现在大多数笔记本电脑都用无线网络适配器

    C．一个可以连接无线设备在特定模式端到端连接路由器

    D．两个设备之间的通信需要使用Wi-Fi接入点的参与。

  • 第15题：

    Which two statements are true about the Wi-Fi Protected Access （WPA） and Wi-Fi Protected Access version 2 （WPA2） security solutions？（）

    • A、both WPA and WPA2 require authentication support via IEEE 802.1 x and Pre-Shared Key （PSK）
    • B、both WPA and WPA2 address all known Wired Equivalent Privacy （WEP） vulnerabilities in the IEEE 802.11i security implementation
    • C、WPA is supported on client devices only. WPA2 is supported on both access point （AP） and client devices
    • D、WPA provides only a standard for authentication. WPA2 provides a standard for authentication and encryption
    • E、WPA requires encryption support via Temporal Key Integrity Protocol （TKIP） WPA2 provides encryption support via （symmetric block cipher）AES-CCMP

    正确答案:A,E

  • 第16题：

    Which two statements about the implementation of WLAN QoS are true？（）

    • A、The 802.11e standard is the IEEE 802.11 OoS WLAN standard.
    • B、The Wi-Fi Multimedia （WMM） standard decreases the eight priority levels to four access categories.
    • C、The Wi-Fi Multimedia （WMM） standard is a Wi-Fi Alliance standard that increases the four priority levels to eight access categories.
    • D、The Wi-Fi Multimedia （WMM） standard is an IEEE standard that increases the four priority levels to eight access categories.
    • E、Wireless 802.11 deploys Distributed Coordination Function （DCF）， carrier sense multiple access with collision detection （CSMA/CD）， interframe spacing， and random wait timers to avoid collisions.
    • F、Wireless OoS designs and implementations commonly use Layer 3 differentiated services code point （DSCP） or Layer 2 802.1 p to ensure priority

    正确答案:A,B

  • 第17题：

    Which IEEE standard is used to define Wi-Fi?（）

    • A、IEEE 802.3
    • B、IEEE 802.5
    • C、IEEE 802.11h
    • D、IEEE 802.11c
    • E、IEEE 802.11

    正确答案:E

  • 第18题：

    What are three security problems with Wi-Fi Protected Access （WPA）？（）

    • A、WPA is based on the outdated IEEE 802.11i standard.
    • B、WPA uses RSN，which uses the same base encryption algorithm as RC4.
    • C、WPA requires a hardware upgrade that may not be supported by all vendors.
    • D、WPA uses TKIP，which uses the same base encryption algorithm as WEP.
    • E、WPA is susceptible to a DoS attack when it receives two packets in quick succession with bad MICs，forcing the AP to shut down the entire Basic Service Set （BSS） for one minute.
    • F、WPA is susceptible to a security weakness when preshared keys are used.

    正确答案:D,E,F

  • 第19题：

    Which of the following represents a wiring standard for twisted pair cables?（）

    • A、Fiber
    • B、T568A
    • C、IEEE1394
    • D、CAT5

    正确答案:B

  • 第20题：

    Which of the following are contained in a store archive？（）

    • A、a JAR file containing commands and JSPs
    • B、an XML file defining the content of the store archive
    • C、a ZIP file of Java properties files containing translated text
    • D、a database backup file used to define store data
    • E、a number of ZIP files used to define store data

    正确答案:B,C,E

  • 第21题：

    多选题
    Which three statements about classification marking of traffic at Layer 2 are true？ （）
    A

    a Frame Relay header includes a 1-bit discard eligible （DE） bit to provide the class of service （CoS）

    B

    an ATM header includes a 1-bit DE field to provide the CoS

    C

    an MPLS EXP field is inserted in the Layer 3 IP precedence field to identify the CoS

    D

    the CoS field only exists inside Ethernet frames when 802.1Q or Inter-Switch Link （ISL） trunking is used

    E

    in the IEEE 802.1p standard， three bits are used to identify the user priority bits for the CoS

    F

    in the IEEE 802.1q standard， six bits are used to identify the user priority bits for the CoS


    正确答案： F,E
    解析： 暂无解析

  • 第22题：

    单选题
    Which spread spectrum technology does the 802.11b standard define for operation（）。
    A

    IR

    B

    DSSS

    C

    FHSS

    D

    DSSS and FHSS

    E

    IR, FHSS, and DSSS


    正确答案： E
    解析： 暂无解析

  • 第23题：

    单选题
    Which IEEE standard is used to define Wi-Fi?（）
    A

    IEEE 802.3

    B

    IEEE 802.5

    C

    IEEE 802.11h

    D

    IEEE 802.11c

    E

    IEEE 802.11


    正确答案： D
    解析： 暂无解析

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