更多“单选题Which of the following transmits a digital signal?()A VGAB XGAC Component videoD DisplayPort”相关问题
  • 第1题:

    Which of the following devices transmits timed broadcasts onto an active network?()

    A. Bridge

    B. Unmanaged switch

    C. DHCP client

    D. Firewal


    参考答案:C

  • 第2题:

    Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks?()

    • A、The three required steps in the analog to digital conversion are sampling,encoding,and compression.
    • B、The three required steps in the analog to digital conversion are sampling,quantization,and compression.
    • C、The three required steps in the analog to digital conversion are sampling,quantization,and encoding.
    • D、The output of the sampling process is a pulse code modulation (PCM) signal.
    • E、The output of the sampling process is a pulse amplitude modulation (PAM) signal.

    正确答案:C,E

  • 第3题:

    Birthday attacks are used against which of the following?()

    • A、 digital signatures
    • B、 symmetric ciphering
    • C、 hashalgoritms
    • D、 asymmetric ciphering
    • E、 digital certificates

    正确答案:C

  • 第4题:

    Which of the following is the primary purpose of impedance matched volume control?()

    • A、Maintains proper speaker phase
    • B、Protects the amplifier from damage
    • C、Protects the digital systems from damage
    • D、Amplifies the speaker signal

    正确答案:B

  • 第5题:

    Which of the following video outputs from a media PC provide the BEST picture quality, when connecting the media PC to a projector?()

    • A、SVGA
    • B、VGA
    • C、S-Video
    • D、DVI

    正确答案:D

  • 第6题:

    Which of the following interfaces are used to simultaneously transfer video and audio at highrates?()

    • A、HDMI
    • B、DVI-D
    • C、S-Video
    • D、DVI-I

    正确答案:A

  • 第7题:

    单选题
    Which of the following server roles sends out a time signal for clients to synchronize with a clock?()
    A

    DHCP

    B

    NTP

    C

    SMTP

    D

    DNS


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    Which of the following is the primary purpose of impedance matched volume control?()
    A

    Maintains proper speaker phase

    B

    Protects the amplifier from damage

    C

    Protects the digital systems from damage

    D

    Amplifies the speaker signal


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    Which one of the following is the safety signal?().
    A

    SSS

    B

    TTT

    C

    XXX

    D

    FFF


    正确答案: D
    解析: 暂无解析

  • 第10题:

    多选题
    Which two statements are true about analog to digital conversion of voice signals for use in digital telephony networks?()
    A

    The three required steps in the analog to digital conversion are sampling,encoding,and compression.

    B

    The three required steps in the analog to digital conversion are sampling,quantization,and compression.

    C

    The three required steps in the analog to digital conversion are sampling,quantization,and encoding.

    D

    The output of the sampling process is a pulse code modulation (PCM) signal.

    E

    The output of the sampling process is a pulse amplitude modulation (PAM) signal.


    正确答案: B,E
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following transmits a digital signal?()
    A

    VGA

    B

    XGA

    C

    Component video

    D

    DisplayPort


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following?().
    A

    transmitter

    B

    antenna system

    C

    indicator

    D

    modulator


    正确答案: A
    解析: 暂无解析

  • 第13题:

    显示的格式有以下()等几种。

    • A、VGA
    • B、XGA
    • C、SXGA
    • D、UXGA
    • E、QXGA

    正确答案:A,B,C,D,E

  • 第14题:

    在显卡与液晶显示器连接上,推荐采用的接口是()。

    • A、VGA对VGA
    • B、DVI对DVI
    • C、HDMI对HDMI
    • D、DisplayPort

    正确答案:B

  • 第15题:

    Which of the following devices transmits timed broadcasts onto an active network?()

    • A、Bridge
    • B、Unmanaged switch
    • C、DHCP client
    • D、Firewal

    正确答案:C

  • 第16题:

    Which of the following transmits a digital signal?()

    • A、VGA
    • B、XGA
    • C、Component video
    • D、DisplayPort

    正确答案:D

  • 第17题:

    Which of the following expansion cards can be installed into an AGP slot?()

    • A、Modem
    • B、Network
    • C、Video
    • D、RAID

    正确答案:C

  • 第18题:

    An optical cable is used to transmit:()

    • A、digital audio from a component to a receiver.
    • B、analog video from a component to a receiver.
    • C、analog audio from a component to a receiver.
    • D、digital video from a component to a receiver.

    正确答案:A

  • 第19题:

    单选题
    Birthday attacks are used against which of the following?()
    A

     digital signatures

    B

     symmetric ciphering

    C

     hashalgoritms

    D

     asymmetric ciphering

    E

     digital certificates


    正确答案: D
    解析: 暂无解析

  • 第20题:

    单选题
    Which of the following devices transmits timed broadcasts onto an active network?()
    A

    Bridge

    B

    Unmanaged switch

    C

    DHCP client

    D

    Firewal


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    Which of the following is a key component of a directory services server?()
    A

     VPN

    B

     RIS

    C

     LDAP

    D

     RAS


    正确答案: B
    解析: 暂无解析

  • 第22题:

    单选题
    The Class A EPIRB transmits a signal().
    A

    that follows the curvature of the earth

    B

    that can be picked up by SARSAT satellite

    C

    that activates an alarm on board nearby aircraft

    D

    to alert shore stations and then transmits a homing signal


    正确答案: C
    解析: 暂无解析

  • 第23题:

    单选题
    When comparing analog display inputs to digital display inputs, which of the following is anadvantage that digital has over analog?()
    A

    Allows for higher brightness

    B

    More crosstalk

    C

    Sustains higher resolutions

    D

    Supports widescreen resolutions


    正确答案: A
    解析: 暂无解析

  • 第24题:

    单选题
    Which of the following adapter cards allows I/O devices to be connected and transmits data using a POTS line?()
    A

    PCI tuner card

    B

    PCI modem

    C

    PCI SCSI

    D

    PCI Ethernet


    正确答案: A
    解析: 暂无解析