参考答案和解析
正确答案: D
解析: 暂无解析
更多“单选题After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?()A Signal lossB Signal bleedC Data collisionD Crosstalk”相关问题
  • 第1题:

    After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?()

    A. Signal loss

    B. Signal bleed

    C. Data collision

    D. Crosstalk


    参考答案:A

  • 第2题:

    An analog signal's characteristic quantity representing data may 66). at any instant, any value within a continuous(67). For example, an analog signal may follow continuously the values of another physical quantity representing data.A discrete signal is composed of(68)elements in time, each element having one or more characteristic quantities which can represent data. Examples of characteristic quantities are amplitude, waveform,(69), and position in time. A digital signal is a special case of discrete signals, in which data are represented by a(70)number of well-defined discrete values that one of its characteristic quantities may take in time.

    A.acquire

    B.collect

    C.assume

    D.fetch


    正确答案:C

  • 第3题:

    Which of the following is the MAXIMUM cable length for 802.3 Ethernet?()

    • A、33 Feet (10 meters)
    • B、100 Feet (30 meters)
    • C、328 Feet (100 meters)
    • D、1200 Feet (366 meters)

    正确答案:C

  • 第4题:

    Which three items does the Cisco WCS Planning Tool Generate Proposal Report provide?() 

    • A、access point position, in feet, from a corner of the floor plan
    • B、SNR coverage map for 802.11a/n
    • C、data rate map for 802.11a/n
    • D、percent of coverage by signal

    正确答案:A,C

  • 第5题:

    Which of the following SCSI signaling systems uses one return line for every outgoing line, is less susceptible to interference, signal degradation, crosstalk, and allows a cable length of up to 25 meters?()

    • A、 SE (Single Ended)
    • B、 DE (Double Ended)
    • C、 LVD (Low Voltage Differential)
    • D、 HVD (High Voltage Differential)

    正确答案:D

  • 第6题:

    Which of the following has a MAXIMUM distance of 300 meters (984 feet)?()

    • A、1000Base-T
    • B、10GBase-SW
    • C、100Base-FX
    • D、100Base-TX

    正确答案:B

  • 第7题:

    When comparing DSL broadband to cable broadband, which of the following is an advantage ofDSL broadband?()

    • A、Upgraded copper lines allow maximum speed greater than cable
    • B、Signal is not shared back to the switch
    • C、Signal is shared back to the switch
    • D、Distance is not a factor in signal speed

    正确答案:B

  • 第8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:

    单选题
    Which of the following has a MAXIMUM distance of 300 meters (984 feet)?()
    A

    1000Base-T

    B

    10GBase-SW

    C

    100Base-FX

    D

    100Base-TX


    正确答案: B
    解析: 暂无解析

  • 第11题:

    单选题
    Which of the following SCSI signaling systems uses one return line for every outgoing line, is less susceptible to interference, signal degradation, crosstalk, and allows a cable length of up to 25 meters?()
    A

     SE (Single Ended)

    B

     DE (Double Ended)

    C

     LVD (Low Voltage Differential)

    D

     HVD (High Voltage Differential)


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?()
    A

    The wireless card must be calibrated to the laptop.

    B

    The correct preshared encryption key must be installed to boost the signal.

    C

    The MAC address of the new wireless card will have to be added to the WAP to get the full signal.

    D

    The antenna wires for the wireless card were not attached.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    Which of the following has a MAXIMUM distance of 300 meters (984 feet)?()

    A.1000Base-T

    B.10GBase-SW

    C.100Base-FX

    D.100Base-TX


    参考答案:B

  • 第14题:

    In order to link data centers, a customer is evaluating the installation of fiber optic cable between buildings that are 400 meters apart. The installation will require multiple patch panels and cables.Which of the following is the most critical factor to consider for this installation?()

    A. I/O rate

    B. bandwidth

    C. signal loss

    D. Dense Wavelength Division Multiplexing (DWDM)


    参考答案:C

  • 第15题:

    1000BaseT has a MAXIMUM run distance of:()

    • A、25 meters (82 feet)
    • B、100 meters (328 feet)
    • C、500 meters (1640 feet)
    • D、1000 meters (3280 feet)

    正确答案:B

  • 第16题:

    Which of the following is the MOST likely cause of a low wireless signal after an internal wireless adapter on a laptop was replaced?()

    • A、The wireless card must be calibrated to the laptop.
    • B、The correct preshared encryption key must be installed to boost the signal.
    • C、The MAC address of the new wireless card will have to be added to the WAP to get the full signal.
    • D、The antenna wires for the wireless card were not attached.

    正确答案:D

  • 第17题:

    Which of the following transmits a digital signal?()

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

    正确答案:D

  • 第18题:

    After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?()

    • A、Signal loss
    • B、Signal bleed
    • C、Data collision
    • D、Crosstalk

    正确答案:A

  • 第19题:

    In order to link data centers, a customer is evaluating the installation of fiber optic cable between buildings that are 400 meters apart. The installation will require multiple patch panels and cables. Which of the following is the most critical factor to consider for this installation?()

    • A、I/O rate
    • B、bandwidth
    • C、signal loss
    • D、Dense Wavelength Division Multiplexing (DWDM)

    正确答案:C

  • 第20题:

    单选题
    After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?()
    A

    Signal loss

    B

    Signal bleed

    C

    Data collision

    D

    Crosstalk


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    Which of the following are true of Ethernet technology?()
    A

    Hosts use a logical ring topology.

    B

    Hosts use a logical bus topology

    C

    Hosts must wait for an electronic signal to transfer data.

    D

    Hosts are directly connected to a wiring concentrator called a MSAU.


    正确答案: C
    解析: 暂无解析

  • 第22题:

    单选题
    Which of the following is the MAXIMUM cable length for 802.3 Ethernet?()
    A

    33 Feet (10 meters)

    B

    100 Feet (30 meters)

    C

    328 Feet (100 meters)

    D

    1200 Feet (366 meters)


    正确答案: C
    解析: 暂无解析

  • 第23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24题:

    单选题
    1000BaseT has a MAXIMUM run distance of:()
    A

    25 meters (82 feet)

    B

    100 meters (328 feet)

    C

    500 meters (1640 feet)

    D

    1000 meters (3280 feet)


    正确答案: D
    解析: 暂无解析