单选题How many channels are defined in the IEEE 802.11b DSSS channel set?()A 3B 4C 11D 13E 14

题目
单选题
How many channels are defined in the IEEE 802.11b DSSS channel set?()
A

3

B

4

C

11

D

13

E

14


相似考题
更多“单选题How many channels are defined in the IEEE 802.11b DSSS channel set?()A 3B 4C 11D 13E 14”相关问题
  • 第1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2题:

    How many families of MCS are defined for EGPRS?()

    • A、1
    • B、2
    • C、3

    正确答案:C

  • 第3题:

    During the modem boot process,how does the modem acquire the downstream channel?()

    • A、The modem is commanded by the CMTS to set to the specific channel
    • B、The modem uses the default value in the broadcom chipset
    • C、The modem tuner sets a level as defined by the DOCSIS specification
    • D、The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered

    正确答案:D

  • 第4题:

    使用FHSS(跳频技术)和DSSS(直接序列展频技术)的网络IEEE标准是什么?()

    • A、802.11
    • B、802.3
    • C、802.4
    • D、802.6

    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:

    When planning for VoWLAN capacity during a site survey, how many simultaneous calls can beestimated per 5 GHz channel?()

    • A、7
    • B、14
    • C、20
    • D、30

    正确答案:C

  • 第7题:

    How many messages does Internet Key Exchange use to negotiate SA characteristics when it runs inaggressive mode?()

    • A、3
    • B、4
    • C、5
    • D、2
    • E、6

    正确答案:A

  • 第8题:

    单选题
    How many channels are defined in the IEEE 802.11b DSSS channel set?()
    A

    3

    B

    4

    C

    11

    D

    13

    E

    14


    正确答案: B
    解析: 暂无解析

  • 第9题:

    单选题
    When planning for VoWLAN capacity during a site survey, how many simultaneous calls can beestimated per 5 GHz channel?()
    A

    7

    B

    14

    C

    20

    D

    30


    正确答案: A
    解析: 暂无解析

  • 第10题:

    单选题
    The ONS 15216 is a 32-channel system. The ONS 15216 OADMs are capable of adding and dropping one, two, or four channels.  How are the OADMs provisioned to add and drop specific channels?()
    A

     The ONS 15216 OADM can be provisioned to add/drop one, two, or four channels via Cisco Transport Manager (CTM).

    B

     The ONS 15216 OADM consists only of a four-channel module, and the number of ports utilized determines whether it is a one, two, or four channel OADM.

    C

     Three separate OADM modules are available for one, two, and four channels. The wavelengths to be dropped and added are programmable via Cisco Transport Manager (CTM).

    D

     The ONS 15216 OADM consists only of a single-channel module. Two-channel and four-channel support is available by stacking the single-channel module.

    E

     The ONS 15216 OADM is available in one, two, four channels.  There are 32 single-channel OADM modules, 16 two-channel OADM modules, and 8 four-channel OADM modules.


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    哪种扩频技术是802.11B定义使用的?()
    A

    IR

    B

    DSSS

    C

    FHSS

    D

    DSSS and FHSS

    E

    IR,FHSS,and DSSS


    正确答案: A
    解析: 暂无解析

  • 第12题:

    单选题
    You have configured the following:  RMAN> CONFIGURE DEFAULT DEVICE TYPE TO ’sbt’; new RMAN configuration parameters:  CONFIGURE DEFAULT DEVICE TYPE TO ’sbt’; new RMAN configuration parameters are successfully stored RMAN> SHOW DEVICE TYPE; RMAN configuration parameters are: CONFIGURE DEVICE TYPE SBT PARALLELISM 1; # CONFIGURE DEVICE TYPE DISK PARALLELISM 1; #  RMAN> CONFIGURE DEVICE TYPE SET PARALLELISM 5;  RMAN> SHOW DEVICE TYPE; RMAN configuration parameters are: CONFIGURE DEVICE TYPE SBT PARALLELISM 5; CONFIGURE DEVICE TYPE DISK PARALLELISM 1; #  How many channels are allocated to SBT?()
    A

    0, because channels have not been defined.

    B

    3, as indicated by the degree of parallelism.

    C

    1, the default value when device is configured.

    D

    5, as indicated by the last parallelism command.


    正确答案: A
    解析: 暂无解析

  • 第13题:

    由变量的6个值6,9,12,14,15,20计算中位数可得

    A、3

    B、4

    C、12

    D、13

    E、14


    参考答案:D

  • 第14题:

    When designing the coverage area for high call capacity, what two actions should be done with data rates and channels?()

    • A、Avoid channels with high AP co-channel interference.
    • B、Use channels with high AP co-channel interference to avoid channel roams.
    • C、Set the 2.4-GHz data rate of 5.5 Mb/s to required.
    • D、Use 5-GHz channels when possible.
    • E、Use 2.4-GHz channels when possible.

    正确答案:A,D

  • 第15题:

    哪种扩频技术是802.11B定义使用的?()

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

    正确答案:B

  • 第16题:

    人类补体系统由几种球蛋白组成()

    • A、3
    • B、9
    • C、11
    • D、13
    • E、5

    正确答案:A

  • 第17题:

    How many channels are defined in the IEEE 802.11b DSSS channel set?()

    • A、 3
    • B、 4
    • C、 11
    • D、 13
    • E、 14

    正确答案:E

  • 第18题:

    The price of Cisco Small Business Pro Service is based on the complexity of the device that is being covered. How many different price points for these devices are available?()

    • A、3
    • B、4
    • C、5
    • D、6

    正确答案:A

  • 第19题:

    How many wire pairs are in a standard CAT6 cable? ()

    • A、 3
    • B、 4
    • C、 6
    • D、 8

    正确答案:B

  • 第20题:

    单选题
    How many wire pairs are in a standard CAT6 cable? ()
    A

     3

    B

     4

    C

     6

    D

     8


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    How many channels are defined in the IEEE 802.11b DSSS channel set?()
    A

     3

    B

     4

    C

     11

    D

     13

    E

     14


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    During the modem boot process,how does the modem acquire the downstream channel?()
    A

    The modem is commanded by the CMTS to set to the specific channel

    B

    The modem uses the default value in the broadcom chipset

    C

    The modem tuner sets a level as defined by the DOCSIS specification

    D

    The modem tuner scans the downstream spectrum until digital QAM modulated signal is encountered


    正确答案: A
    解析: 暂无解析

  • 第23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: D
    解析: 暂无解析

  • 第24题:

    单选题
    A particular UCS system has 8 fiber channel uplinks configured. How many VSANs are supports by this configuration?()
    A

    four

    B

    eight

    C

    sixteen

    D

    thirty-two


    正确答案: C
    解析: 暂无解析