In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?（）..

第1题

[] You work as a network administrator in your company. Communication inside the company is ensured by network environments, such as GET VPN, Dynamic Multipoint VPN and Ethernet. Which PIN architecture is applicable in those environments?（） You work as a network administrator in your company. Communication inside the company is ensured by network environments, such as GET VPN, Dynamic Multipoint VPN and Ethernet. Which PIN architecture is applicable in those environments?（）

A、A.Campus B、B.Teleworker C、C.Branch D、D.Data center

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第2题

[] Which one of the following actions would actually increase congestion on an Ethernet network?（）

A、A. Increasing the number of collision domains. B、B. Micro-segmenting the network. C、C. Adding hubs for connectivity to the network. D、D. Putting additional switches in the network. E、E. Implementing VLANs in the network.

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第3题

[多选题] What are the differences between full-duplex Ethernet and half-duplex Ethernet?（）

A、Half-duplex Ethernet operates in a shared collision domain. B、Full-duplex Ethernet has a lower effective throughput. C、Half-duplex Ethernet operates in a private collision domain. D、Full-duplex Ethernet allows two-way communication. E、Half-duplex Ethernet operates in a private broadcast domain.

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第4题

[单选题] A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port（）。

A、This is a 10 Mb/s switch port B、This is a 100 Mb/s switch port C、This is an Ethernet port operating at half duplex D、This is an Ethernet port operating at full duplex E、This is a port on a network interface card in a PC

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第5题

[单选题] Your company has just upgraded its CATAGORY 5 Ethernet network from 10Mbps to 100Mbps. After the upgrade， the 20 Windows 2000 Professional computers in the marketing department can no longer connect to the network. The remaining 80 Windows 2000 computers in the company can connect， however. Your company uses NWLink as the only network protocol.You need to connect the computers in the marketing department to the network. What must you do？（）

A、Configure the NWLink frame type of the network adapters to be ethernet 802.3. B、Configure the NWLink frame type of the network adapters to be ethernet II. C、Replace the network adapters with 10/100 BNC adapters. D、Replace the network adapters with 10/100 UTP network adapters.

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第6题

[单选题] In a Bridged 1483 network, what Layer 2 encapsulations are passed between the DSL bridge and the ERX?（）

A、single ATM header B、single Ethernet header C、ATM header followed by a PPP header D、ATM header followed by an Ethernet header

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第7题

[多选题] When you compare the differences between half-duplex and full-duplex Ethernet,which of the following characteristics are exclusive to half-duplex?（）

A、Half-duplex Ethernet operates in a shared collision domain. B、Half-duplex Ethernet operates in an exclusive broadcast domain. C、Half-duplex Ethernet has efficient throughput. D、Half-duplex Ethernet has lower effective throughput. E、Half-duplex Ethernet operates in an exclusive collision domain.

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第8题

[单选题] 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

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第9题

[单选题] You are the network administrator for Test King. All network servers run Windows Server 2003. A server named TestKingSrv hosts applications for network users. TestKingSrv contains a motherboard that can support two CPUs. One CPU is currently installed. TestKingSrv has 512 MB of RAM and a single 36 - GB integrated device electronics (IDE) hard disk. It has a 10 MB Ethernet card connected to a 10/100 Mb switch. After TestKingSrv is in use for five months, network users report unacceptable response times on their applications. You open System Monitor on TestKingSrv and see the information shown in the following table. You need to improve the performance of Server 1. What should you do?（）

A、Add an additional CPU. B、Add an additional 512 MB of RAM. C、Replace the existing hard disk with a faster one. D、Replace the 10-Mb Ethernet card with a 100-Mb Ethernet card.

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第10题

[多选题] The TestKing network Topology is displayed in the exhibit below A switch has been configured for three different VLANs: VLAN 2, VLAN 3, andVLAN 4. For the purposes of communication between VLANs a router is to beadded. Host from one VLAN should be able to reach the hosts in the other VLANs. Based on this requirement, what type of connection is acceptable between the routerand switch?（）

A、10 Mbps Ethernet B、56 kbps serial C、100 Mbps Ethernet D、1,544 Mbps serial E、1000 Mbps Ethernet

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In Ethernet networks, duplex mismatches will lower performance. Which error statistics can be seen if a duplex mismatch is present?（）

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