單項(xiàng)選擇題Which of the following protocols uses both TCP and UDP ports?()

A. SMTP
B. Telnet
C. FTP
D. DNS


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1.單項(xiàng)選擇題Which command enhances the 802.1D convergence time on ports that are connected to hosts?()

A. spanning-tree backbonefast
B. spanning-tree uplinkfast
C. spanning-tree portfast
D. spanning-tree cost512

3.單項(xiàng)選擇題Which command helps a network administrator to manage memory by displaying flash memory and NVRAM utilization?()

A. show secure
B. show file systems
C. show flash
D. show version

4.單項(xiàng)選擇題What is the most likely reason for the dispartly between the actual network numbers at the branches and the routes in the routing table on Gateway-Router?()

A. Branch-Router2 is configured to send both RIPv1 and RIPv2 updates.
B. Gateway-Router is configured to only receive RIPv2 updates.
C. Gateway-router is configured to receive only RIPv1 updates.
D. Branch-Router1 is configured to only send RIPv1 updates

5.單項(xiàng)選擇題which address range efficiently summarizes the routing table of the addresses for router main?()

A. 172.16.0.0/18
B. 172.16.0.0/16
C. 172.16.0.0/20
D. 172.16.0.0/21

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A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?()

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On which options are standard access list based?()

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When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

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What is the subnetwork address for a host with the IP address 201.100.5.68/28?()

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Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?()

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What is the default administrative distance of OSPF?()

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At which layer of the OSI model dose PPP perform?()

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Which pairing reflects a correct protocol-and-metric relationship?()

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