The Ezonexam LAN is upgrading all devices to operate in full duplex. Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?A.Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to

题目

The Ezonexam LAN is upgrading all devices to operate in full duplex. Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?

A.Full-duplex Ethernet uses two wires to send and receive. Half-duplex Ethernet uses one wire to send and receive

B.Full-duplex Ethernet consists of a shared cable segment. Half-duplex Ethernet provides a point-to-point link

C.Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth

D.Full-duplex Ethernet uses a loopback circuit to detect collisions. Half-duplex ethernet uses a jam signal

E.None of the above


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  • 第1题:

    You are the network administrator for Ezonexam.

    Ezonexam14 is one of 10 Windows NT Server 4.0 member servers in a Windows 2000 domain named marketing.Ezonexam.local. The marketing domain also has five Windows NT 4.0 backup domain controllers. The marketing.Ezonexam.local domain is the child domain of Ezonexam's root domain, Ezonexam.local.

    You want to upgrade Ezonexam14 to Windows 2000 Server and change the role of Ezonexam14 from a member server to a domain controller in the same domain. You also want to be able to implement Universal Groups in the marketing domain.

    What should you do? (Each correct answer presents part of the solution. Choose three)

    A. Upgrade all of the Windows NT Server 4.0 member servers in the marketing domain to Windows 2000 Server.

    B. Upgrade all of the Windows Server 4.0 backup domain controllers in the marketing domain to Windows 2000 Server.

    C. Upgrade Ezonexam14 to Windows 2000 Server. Run the dcpromo command to make Ezonexam14 a domain controller in the marketing.Ezonexam.local domain.

    D. Upgrade Ezonexam14 to Windows 2000 Server. Run the dcpromo command to make Ezonexam14 to a domain controller in the Ezonexam.local domain.

    E. Use the Active Directory Domains and Trusts tool to change the Ezonexam.local domain mode to native mode.

    F. Use the Active Directory Domains and Trusts to change the marketing.Ezonexam.local domain mode to native mode.


    正确答案:BCF
    B,C,F 解析:Explanation: A backup domain controller (BDC) - In a Windows NT Server domain, a computer that receives a copy of the domain's security policy and domain database and authenticates network logons. It provides a backup if the primary domain controller (PDC) becomes unavailable.

    Once a server has been installed with Windows Server 2000, you can upgrade it to a domain controller through the Dcpromo utility.

    Native-mode domains have additional features that are unavailable to mixed-mode domains, but no longer support NT 4 domain controllers. In order to support universal groups, the domain must be configured for Windows 2000/2003 native mode. If the domain is configured for Windows 2000/2003 mixed mode (which supports Windows NT 4.0), then universal groups are not supported.

    Incorrect answers:
    A: You should be upgrading the domain controllers and not the member servers.

    D: This option is faulty since it asks for the upgrading of the domain controllers in Ezonexam.local instead of marketing.Ezonexam.local.

    E: This option is faulty as it should be changing the marketing.Ezonexam.local domain and not the Ezonexam.local domain.

  • 第2题:

    You are the network administrator for Ezonexam.

    ServerEzonexam14 is a Windows NT Server 4.0 computer. ServerEzonexam14 is also a member server in a Windows 2000 domain named marketing.Ezonexam.local. The marketing.Ezonexam.local domain also has five Windows NT Server 4.0 backup domain controllers.

    You want to upgrade ServerEzonexam14 to a Windows 2000 member server in the marketing.Ezonexam.local domain. You also want to be able to implement Universal Groups in the marketing.Ezonexam.local domain.

    What should you do? (Each correct answer presents part of the solution. Choose three)

    A. Reinstall Windows NT Server 4.0 on ServerEzonexam14 in the same WINNT folder, and make ServerEzonexam14 a BDC in the marketing domain.

    B. Run the Active Directory Installation Wizard to make ServerEzonexam14 a domain controller in the marketing.Ezonexam.local domain.

    C. Run the Active Directory Installation Wizard to convert ServerEzonexam14 to a domain controller in the fabrikam.local domain.

    D. Upgrade all the Windows NT Server 4.0 backup domain controllers in marketing.Ezonexam.local to Windows 2000 Server.

    E. Upgrade all the Windows NT Server 4.0 backup domain controllers in Ezonexam.local to Windows 2000 Server.

    F. Upgrade ServerEzonexam14 to Windows 2000 Server.

    G. Upgrade the marketing.Ezonexam.local domain to native mode.


    正确答案:DFG
    D,F,G 解析:Explanation: A member server is a Windows Server 200 server that has been installed as a non-domain controller and joined to a domain. This allows the server to operate as a file, print, and application server without the overhead of account administration. A domain controller is a Windows Server 2000 computer that is configured to store the domain database, commonly referred to as Active Directory. Native-mode domains have additional features that are unavailable to mixed-mode domains, but no longer support NT 4 domain controllers. In order to support universal groups, the domain must be configured for Windows 2000/2003 native mode. If the domain is configured for Windows 2000/2003 mixed mode (which supports Windows NT 4.0), then universal groups are not supported. Thus to comply with the requirements of having universal groups and upgrading ServerEzonexam14 to a Windows 2000 member server in the marketing.Ezonexam.local domain, options D, F and G is the solution.

    Incorrect answers:
    A: A backup domain controller (BDC) - In a Windows NT Server domain, a computer that receives a copy of the domain's security policy and domain database and authenticates network logons. It provides a backup if the primary domain controller (PDC) becomes unavailable. A domain is not required to have a BDC. This is not what is required.

    B: Making ServerEzonexam14 a domain controller is not the same as upgrading it to a Windows 2000 member server. A member server must be upgraded to a domain controller.

    C: You should be upgrading ServerEzonexam14 to a Windows 2000 Member server in the marketing.Ezonexam.local domain and not the fabrikam.local domain.

    E: This option is faulty since it asks for the upgrading of the domain controllers in Ezonexam.local instead of marketing.Ezonexam.local.

  • 第3题:

    Routers R1, R2, R3, and R4 connect to the same 10.10.10.0/24 LAN- based subnet. OSPF is fully working in the subnet. Later, R5, whose OSPF priority is higher than the other four routers, joins the subnet.Which of the following are true about the OSPF database exchange process over this subnet at this point?()

    A. R5 will send its DD, LSR, and LSU packets to the 224.0.0.5 all - DR - routers multicast address.

    B. R5 will send its DD, LSR, and LSU pack ets to the 224.0.0.6 all - DR - routers multicast address.

    C. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU packets to the 224.0.0.6 all- SPF - routers multicast address.

    D. The DR will inform R5 about LSAs by sending its DD, LSR, and LSU pa ckets to the 224.0.0.5 all- SPF - routers multicast address.


    参考答案:B, D

  • 第4题:

    A local-area network(LAN)is a communications network that(125)a variety of devices and provides a(126)for information exchange among those devices. The scope of the LAN is small typically a single building or a cluster(丛)of buildings. The LAN is usually owned by the same organization that owns the(127)devices. The internal data rate of LAN is at least several Mb/s.The basic of LAN communication is broadcasting. At each station, there is a transmitter/receiver that communicates over a(128)shared, By other stations. A transmission from any one station is(129)to and received by all other stations.

    A.broadcast

    B.cable

    C.control

    D.interconnects

    E.internet


    正确答案:D

  • 第5题:

    Which of these correctly identifies the six phases of the Cisco Lifecycle Services framework? ()

    A. Prepare, Plan, Create, Implement, Operate, and Improve

    B. Prepare, Plan, Design, Implement, Operate, and Optimize

    C. Prepare, Plan, Design, Apply, Operate, and Manage

    D. Prepare, Plan, Design, Implement, Operate and Manage


    参考答案:B

  • 第6题:

    Inwhichmodesdoesselectivepacketdiscard(SPD)operate?()

    A.normal

    B.discard

    C.random

    D.full


    参考答案:A, C, D