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单选题
What does a router do?（）
A
Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)
B
Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)
C
Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
D
Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)
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What does a router do?()
A.Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)B.Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)C.Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)D.Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
考题
What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?()
A. It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B. It sends a copy of its neighbor table to all adjacent routers.C. It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D. It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.
考题
The local area network also connects to a wide area network that allow a message ___ across the country or to other countries.A.send
B.sending
C.to be sent
D.is sent
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Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）A、Limited in a single building, a group of buildings, or even a single roomB、Crosses metropolitan, regional, or national boundariesC、Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)D、Connects client devices wireless protocol
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Which network technology allows for the monitoring of active communication networks to diagnose problems and gather statistics for network administration?（）A、Network securityB、Content networkingC、Network managementD、Campus local-area networking
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You are the network administrator for your company. The Denver office is currently connected to the corporate WAN by using a Windows Server 2003 computer named Server23.Server23 is configured as a dial-up router. Server23 has two network adapters. One network adapter connects to the Ethernet LAN. The other network adapter is a broadband networking device.The company plans to increase the number of employees in the Denver office by at least 25 percent. You need to confirm that the current network bandwidth of the broadband connection will be sufficient for the future expansion of the Denver office.You want to use System Monitor on Server23 to find out the current utilization of the broadband network connection. What should you do？（）A、Monitor the Bytes Total/sec counter on the Network Interface object.B、Monitor the Bytes Total/sec counter on the Server object.C、Monitor the Server//Packets/sec counter on the Server object.D、Monitor the Current Bandwidth counter on the Network Interface object.
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现代计算机网络按照其规模距离和结构来划分可以分为（）。A、局域网（Local Area Network，LAN）B、城域网（Metropolitan Area Network，MAN ）C、广域网（Wide Area Network，WAN）D、以上都不对
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What is A WAN？（）A、A network that connects client devices wirelessly using radio wavesB、A network that crosses metropolitan, regional, or national boundariesC、A network that is restricted.to a single building ,a group of buildings, or even a single roomD、A network that encompasses an entire city or metropolitanared. and. connects multiple LANs
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What does a router do?（）A、Routes traffic down alternative paths and connects the local-area network (LAN) to the wide- area network (WAN)B、Reads Media Access Control (MAC) addresses to forward messages to the correct location and connects the local-area network (LAN) to the wide-area network (WAN)C、Stores data on the network and connects the local-area network (LAN) to the wide-area network (WAN)D、Broadcasts data to all devices that are connected to it across the local-area network (LAN) and wide-area network (WAN)
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What is A WAN?（）A、A network that is restricted.to A single building ,A group of buildings, or even A single room.B、A network that encompasses an entire city or metropolitanared and connects multiple LANs.C、A network that connects client devices wirelessly using radio waves.D、A network that crosses metropolitan, regional, or national boundaries.
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Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）A、Connects client devices wireless protocolB、Crosses metropolitan, regional, or national boundariesC、Limited in a single building, a group of buildings, or even a single roomD、Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)
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Which of the following is the purpose of QoS?（）A、Load balance traffic across multiple LAN and WAN links.B、Increase speed of network traffic.C、Classify, mark, and prioritize traffic on WAN and LAN linksD、Guarantee traffic delivery.
考题
单选题Which of the following is the purpose of QoS?（）A
Load balance traffic across multiple LAN and WAN links.B
Increase speed of network traffic.C
Classify, mark, and prioritize traffic on WAN and LAN linksD
Guarantee traffic delivery.
考题
单选题Which network technology allows for the monitoring of active communication networks to diagnose problems and gather statistics for network administration?（）A
Network securityB
Content networkingC
Network managementD
Campus local-area networking
考题
单选题Wide Area Network (WAN) is a computer network that covers a broad areA. Which statement is correct for wide-area network (WAN)?（）A
Limited in a single building, a group of buildings, or even a single roomB
Crosses metropolitan, regional, or national boundariesC
Encompasses an entire city or metropolitan area and connects multiple local-area networks (LANs)D
Connects client devices wireless protocol
考题
单选题What does a router do if it has no EIGRP feasible successor route to a destination network and the successor route to that destination network is inactive status?（）A
It routes all traffic that is addresses to the destination network to the interface indicates in the routing table.B
It sends a copy of its neighbor table to all adjacent routers.C
It sends a multicast query packet to all adjacent neighbors requesting available routing paths to the destination network.D
It broadcasts Hello packets to all routers in the network to re-establish neighbor adjacencies.
考题
多选题现代计算机网络按照其规模距离和结构来划分可以分为（）。A局域网（Local Area Network，LAN）B城域网（Metropolitan Area Network，MAN ）C广域网（Wide Area Network，WAN）D以上都不对
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单选题You are the network administrator for your company. The Denver office is currently connected to the corporate WAN by using a Windows Server 2003 computer named Server23.Server23 is configured as a dial-up router. Server23 has two network adapters. One network adapter connects to the Ethernet LAN. The other network adapter is a broadband networking device.The company plans to increase the number of employees in the Denver office by at least 25 percent. You need to confirm that the current network bandwidth of the broadband connection will be sufficient for the future expansion of the Denver office.You want to use System Monitor on Server23 to find out the current utilization of the broadband network connection. What should you do？（）A
Monitor the Bytes Total/sec counter on the Network Interface object.B
Monitor the Bytes Total/sec counter on the Server object.C
Monitor the Server//Packets/sec counter on the Server object.D
Monitor the Current Bandwidth counter on the Network Interface object.
考题
单选题What is the most common cause of network congestion？（）A
aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB
speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC
flapping Ethernet interfaces caused by misconfigured LAN interfacesD
flapping serial interfaces caused by misconfigured WAN interfacesE
speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment
考题
单选题What is A WAN？（）A
A network that connects client devices wirelessly using radio wavesB
A network that crosses metropolitan, regional, or national boundariesC
A network that is restricted.to a single building ,a group of buildings, or even a single roomD
A network that encompasses an entire city or metropolitanared. and. connects multiple LANs
考题
单选题Which includes an activity to host a workshop that focuses on the identification and configuration of the actual network components （routers， servers， local-area network or LAN， and so on） that will be incorporated to run and support the Cisco Unified Communications system（）A
ImplementB
DesignC
PlanD
Prepare
考题
单选题What is A WAN?（）A
A network that is restricted.to A single building ,A group of buildings, or even A single room.B
A network that encompasses an entire city or metropolitanared and connects multiple LANs.C
A network that connects client devices wirelessly using radio waves.D
A network that crosses metropolitan, regional, or national boundaries.
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