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参考答案和解析
正确答案:A
更多“Which codec standard requires a bit rate of 64 kbps to maintain a mean opinion score of 4.1?()A、G711B、G726C、G728D、G729E、G729A”相关问题
  • 第1题:

    Which WAN connection requires a different interface than the standard interface provided in the Cisco Single-Site Secure Network Foundation deployment design?()

    • A、Metro Ethernet
    • B、DSL
    • C、VPN
    • D、Cable
    • E、Frame-Relay

    正确答案:E

  • 第2题:

    A technician needs to build a server with at least 16GB of RAM and Windows 2008R2 as the operating system. Which of the following processors should the technician choose?()

    • A、32-bit AMD processor
    • B、32-bit Intel P4 processor
    • C、64-bit Intel processor
    • D、64-bit ARM processor

    正确答案:C

  • 第3题:

    主控站系统传输速率为().

    • A、64kBps-5MBps
    • B、64kBps-4MBps
    • C、64kBps-2MBps
    • D、64kBps-1MBps

    正确答案:C

  • 第4题:

    Which two statements are true about the digital audio in a VoIP network? ()

    • A、 Standard encoding techniques create an uncompressed digital data rate of 4000 bps.
    • B、 Standard encoding techniques create an uncompressed digital data rate of 8000 bps.
    • C、 Standard encoding techniques create an uncompressed digital data rate of 64,000 bps.
    • D、 Voice quality is not a concern if compression is not used.
    • E、 Two methods of quantization are linear and logarithmic.
    • F、 Two methods of compression are u-law and a-law.

    正确答案:C,E

  • 第5题:

    Which of the following expansion slots is 64-bit?()

    • A、 PCIx
    • B、 PCI
    • C、 ISA
    • D、 PCIe

    正确答案:D

  • 第6题:

    Which of the following actions will enable 64-bit applications on a system with a 32-bit kernel?()

    • A、change the kernel to 64bit, reboot, and then use the following command:chdev -l sys0 -a applications=64_bit
    • B、Re-install the OS with 64-bit kernel enabled
    • C、Re-install all applications with 64-bit versions
    • D、Use smit to enable the 64-bit applications

    正确答案:D

  • 第7题:

    When running the jfs2 filesystem on a user volume group which of the following options is TRUE?()

    • A、Only the 64bit kernel is supported. 
    • B、Filesystem compression is not supported. 
    • C、Filesystem compression is supported only if the 64bit kernel is running. 
    • D、Filesystem compression is supported running either a 32bit or 64bit kernel.

    正确答案:B

  • 第8题:

    单选题
    Which is the correct WebLogic Server distribution version to download if you want to install WebLogic Server 12c to run in 64 bit mode on a 64 bit Linux X86?()
    A

    Linux x86 with 64 bit JVM

    B

    ZIP distribution for Linux

    C

    Linux x86 with 32 bit JVM

    D

    Generic distribution

    E

    Network installer


    正确答案: C
    解析: 暂无解析

  • 第9题:

    单选题
    Which codec standard requires a bit rate of 64 kbps to maintain a mean opinion score of 4.1?()
    A

    G711

    B

    G726

    C

    G728

    D

    G729

    E

    G729A


    正确答案: E
    解析: 暂无解析

  • 第10题:

    单选题
    Which statement describes how RSVP guarantees bandwidth reservations?()
    A

    It polices each individual session to an explicit rate.

    B

    It does not police, but never allows link oversubscription.

    C

    It polices the aggregate rate of all sessions to an explicit rate.

    D

    It does not police, but limits the amount of reservable bandwidth.


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    The term "pour point" is defined as the lowest temperature at which lubricating oils will flow ().
    A

    rapidly

    B

    by gravity

    C

    through a standard orifice at a specified temperature

    D

    at a rate of 60cc per second


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following operating systems can Hyper-V run on?()
    A

    64-bit Linux Enterprise Edition

    B

    64-bit Windows Server 2008

    C

    32-bit Windows Server 2008

    D

    64-bit Windows Server 2003


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Which of the following actions will enable 64-bit applications on a system with  32-bit kernel()

    • A、Use "smit load64bit" to enable the 64-bit applications.
    • B、Re-install all applications with 64-bit versions.
    • C、Re-install the OS with 64-bit kernel enabled.
    • D、Change the kernel to 64bit, reboot, and then use the following command: chdev -l sys0 -a "applications=64_bit"

    正确答案:A

  • 第14题:

    通过命令ADD PVCTRF配置流量参数表,增加PVC时指定连接所使用的流量参数不支持的业务类别有()。

    • A、rt-VBR(real-time Variable Bit Rate)
    • B、CBR(Constant Bit Rate)
    • C、UBR(Unspecified Bit Rate)
    • D、PBR(Pead Bit Rate)

    正确答案:D

  • 第15题:

    Which two statements are correct regarding multicast implementation using a WLAN controller (v5.2) and AP?()

    • A、Multicast traffic is sent out on Cisco APs at the highest mandatory data rate.
    • B、Multicast traffic is sent out on Cisco APs at the highest supported data rate.
    • C、On Cisco APs, multicast traffic and beacons are sent out at the same data rates to maintain a common  cell size for normal data as well as multicast data.
    • D、If there is more than one mandatory data rate, multicast traffic will be sent at the highest mandatory rate  and beacons will be sent at the lowest mandatory rate.
    • E、On Cisco APs, multicast traffic will be sent out at the highest data rate that a client can maintain with the  AP.

    正确答案:A,D

  • 第16题:

    Which statement is NOT a key QoS recommended requirement for voice bearer traffic?()

    • A、Voice traffic should be marked to DSCP EF per the QoS baseline and RFC3246.
    • B、Voice traffic loss should be no more than 3%.
    • C、One-way latency (mouth-to-ear) should be less than 150 msec.
    • D、Average one way jitter should be targeted to less than 30 msec.
    • E、21-320 Kbps of guaranteed priority bandwidth is required per call depending on sample rate,codec,and  layer 2 overhead.

    正确答案:B

  • 第17题:

    Which of the following operating systems can Hyper-V run on?()

    • A、64-bit Linux Enterprise Edition
    • B、64-bit Windows Server 2008
    • C、32-bit Windows Server 2008
    • D、64-bit Windows Server 2003

    正确答案:B

  • 第18题:

    A system administrator is doing an AIX 5L New and Complete Overwrite installation on a system with a 64-bit processor using the default settings. Which of the following will be the resulting installed environment?()

    • A、Only the 32-bit kernel will be installed and enabled
    • B、Only the 64-bit kernel will be installed and enabled
    • C、Both the 32-bit and 64-bit kernel will be installed and the 32-bit kernel will be enabled
    • D、Both the 32-bit and 64-bit kernel will be installed and the 64-bit kernel will be enabled

    正确答案:C

  • 第19题:

    Which is the correct WebLogic Server distribution version to download if you want to install WebLogic Server 12c to run in 64 bit mode on a 64 bit Linux X86?()

    • A、Linux x86 with 64 bit JVM
    • B、ZIP distribution for Linux
    • C、Linux x86 with 32 bit JVM
    • D、Generic distribution
    • E、Network installer

    正确答案:C

  • 第20题:

    单选题
    Which of the following expansion slots is 64-bit?()
    A

     PCIx

    B

     PCI

    C

     ISA

    D

     PCIe


    正确答案: B
    解析: 暂无解析

  • 第21题:

    单选题
    Which WAN connection requires a different interface than the standard interface provided in the Cisco Single-Site Secure Network Foundation deployment design?()
    A

    Metro Ethernet

    B

    DSL

    C

    VPN

    D

    Cable

    E

    Frame-Relay


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    Which of the following actions will enable 64-bit applications on a system with a 32-bit kernel?()
    A

    change the kernel to 64bit, reboot, and then use the following command:chdev -l sys0 -a applications=64_bit

    B

    Re-install the OS with 64-bit kernel enabled

    C

    Re-install all applications with 64-bit versions

    D

    Use smit to enable the 64-bit applications


    正确答案: A
    解析: 暂无解析

  • 第23题:

    多选题
    Which two statements best describe the wireless security standard that is defined by WPA? (Choose two.)()
    A

    It specifies use of a static encryption key that must be changed frequently to enhance security.

    B

    It requires use of an open authentication method.

    C

    It specifies the use of dynamic encryption keys that change each time a client establishes a connection.

    D

    It requires that all access points and wireless devices use the same encryption key.

    E

    It includes authentication by PSK


    正确答案: D,B
    解析: 暂无解析