参考答案和解析
正确答案:A,B
更多“Which two factors affect the speed of your DSL connection?()A、line qualityB、distance from the COC、brand of xDSL modemD、number of twisted-pair wires used”相关问题
  • 第1题:

    Which of the following connection types use a phone line as a carrier to provide access to theInternet?()

    A.Cellular

    B.Satellite

    C.ISDN

    D.WiMAX

    E.DSL


    参考答案:C, E

  • 第2题:

    A line of position is ______.

    A.a line connecting two charted objects

    B.a line on some point of which the vessel may be presumed to be located

    C.the position of your vessel

    D.not used in a running fix


    正确答案:B
    船位线是船舶一些推测位置点的连线。

  • 第3题:

    What characteristics make ADSL the likely choice among DSL technologies for Teleworker?()

    • A、most widely deployed by service providers 
    • B、provides asymmetrical bandwidth, including high speed downlink
    • C、data rate is affected by distance to the Central Office
    • D、provides the furthest reach at T1 speeds 
    • E、supports connection of two routers without the use of a DSL access concentrator

    正确答案:D,E

  • 第4题:

    Which two methods can be used to prevent or reduce RFI from colocated directional antennas()

    • A、Alternate polarization between colocated antennas
    • B、Cross-polarize antennas between endpoints
    • C、Install an RF-shielded box around the antennas
    • D、Increase the distance between the antennas

    正确答案:A,D

  • 第5题:

    Which of the following connection types use a phone line as a carrier to provide access to theInternet?()

    • A、Cellular
    • B、Satellite
    • C、ISDN
    • D、WiMAX
    • E、DSL

    正确答案:C,E

  • 第6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7题:

    A user is connected on a DSL line and is using a PPP over Ethernet service.Which network device strips the ATM header from the datagram and investigates the PPP header?()

    • A、DSLAM
    • B、DSL modem
    • C、ERX Edge Router
    • D、customer workstation

    正确答案:C

  • 第8题:

    You are designing a strategy for migrating to the new environment.  Which two factions from your current environment will affect your migration strategy?()

    • A、 Trusts between domains
    • B、 Number of BDC s in each domain
    • C、 Users and resources in each domain
    • D、 Current hardware for domain controllers
    • E、 Current amount of replication traffic over WAN links

    正确答案:A,C

  • 第9题:

    多选题
    What characteristics make ADSL the likely choice among DSL technologies for Teleworker?()
    A

    most widely deployed by service providers

    B

    provides asymmetrical bandwidth, including high speed downlink

    C

    data rate is affected by distance to the Central Office

    D

    provides the furthest reach at T1 speeds

    E

    supports connection of two routers without the use of a DSL access concentrator


    正确答案: C,E
    解析: 暂无解析

  • 第10题:

    单选题
    Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? ()
    A

    Viscosity is decreased

    B

    Octane number is altered

    C

    Pump speed is decreased

    D

    Blower’s speed is decreased


    正确答案: C
    解析: 暂无解析

  • 第11题:

    多选题
    Which two steps check out a database connection from the connection pool?()
    A

    DB Get

    B

    DB Read

    C

    DB Write

    D

    DB Release


    正确答案: C,B
    解析: 暂无解析

  • 第12题:

    多选题
    You notice that your RMAN script used to copy the datafiles, control files, and archived redo log files is performing very slowly. Which two changes might you want to include in your RMAN script to speed up the COPY commands?()
    A

    NOCHECKSUM

    B

    MAXCORRUPT

    C

    CHECK LOGICAL

    D

    BACKUP INCREMENTAL

    E

    CONFIGURE DEVICE TYPE ... PARALLELISM


    正确答案: C,D
    解析: 暂无解析

  • 第13题:

    A user reports sporadic connectivity with their wireless connection. A technician determines thewireless speed reported by the laptop to be 1Mbps.Which of the following is the MOST likely cause of this issue?()

    A. The client does not support 802.11n

    B. Incorrect frequency on the client is being used

    C. Incorrect encryption on the AP

    D. The client distance from the AP


    参考答案:D

  • 第14题:

    Which two statements are true regarding the USING clause in table joins?()

    • A、It can be used to join a maximum of three tables 
    • B、It can be used to restrict the number of columns used in a NATURAL join 
    • C、It can be used to access data from tables through equijoins as well as nonequijoins 
    • D、It can be used to join tables that have columns with the same name and compatible data types

    正确答案:B,D

  • 第15题:

    Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?()

    • A、link bandwidth
    • B、hop count
    • C、link cost
    • D、administrative distance

    正确答案:D

  • 第16题:

    Select a key benefit of DSL.()

    • A、TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.
    • B、The local loop is a dedicated connection for a single subscriber to the DSLAM. 
    • C、Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time. 
    • D、There are no distance requirements from the Central Office (CO). 

    正确答案:B

  • 第17题:

    A user reports sporadic connectivity with their wireless connection. A technician determines the wireless speed reported by the laptop to be 1Mbps. Which of the following is the MOST likely cause of this issue?()

    • A、The client does not support 802.11n
    • B、Incorrect frequency on the client is being used
    • C、Incorrect encryption on the AP
    • D、The client distance from the AP

    正确答案:D

  • 第18题:

    In a DSL network,which device terminates the PPP over Ethernet subscriber’s two-wire phone line?()

    • A、RAS
    • B、DSLAM
    • C、ATMswitch
    • D、RADIUSserver

    正确答案:B

  • 第19题:

    You are the network administrator for Company.You need to connect to Company’s network from your Windows 2000 Professional computer at home.You have a DSL line that is used for Internet connectivity. You create an L2TP virtual private network(VPN) connection and are able to connect successfully to Company’s network. While connected toCompany’s network, you are unable to access the Internet.You want to be able to access the Internet while connected to Company’s network.How should you configure the connection properties?()

    • A、Configure the DSL connection to use PPTP instead of L2TP. 
    • B、Enable Internet Connection Sharing for the DSL connection properties. 
    • C、CLEAR THE Use default gateway on remote network check box. 
    • D、Clear the Require data encryption check box. 

    正确答案:C

  • 第20题:

    单选题
    Select a key benefit of DSL.()
    A

    TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.

    B

    The local loop is a dedicated connection for a single subscriber to the DSLAM. 

    C

    Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time. 

    D

    There are no distance requirements from the Central Office (CO). 


    正确答案: C
    解析: 暂无解析

  • 第21题:

    单选题
    In determining safe speed,the Rules list all of the following as factors which must be taken into account EXCEPT the().
    A

    limitations of radar equipment

    B

    presence of background lights at night

    C

    maximum horsepower of your vessel

    D

    maneuverability of your vessel


    正确答案: B
    解析: 暂无解析

  • 第22题:

    多选题
    Which two factors affect the speed of your DSL connection?()
    A

    line quality

    B

    distance from the CO

    C

    brand of xDSL modem

    D

    number of twisted-pair wires used


    正确答案: B,A
    解析: 暂无解析

  • 第23题:

    多选题
    You are designing a strategy for migrating to the new environment.  Which two factions from your current environment will affect your migration strategy?()
    A

    Trusts between domains

    B

    Number of BDC s in each domain

    C

    Users and resources in each domain

    D

    Current hardware for domain controllers

    E

    Current amount of replication traffic over WAN links


    正确答案: A,B
    解析: 暂无解析