多項(xiàng)選擇題Which three statements accurately describe layer 2 Ethernet switches?()

A. Microsegmentation decreases the number of collisions on the network.
B. if a switch receives a frame for an unkown destination,it uses ARP to resolve the address.
C. Spanning Tree Protocol allows switches to automatically share vlan information.
D. In a properly functioning network with redundant switched paths,each switched aegment will contain one root bridge with all its ports in the forwarding state.All other switches in that broadcast domain will have only one root port.
E. Establishing vlans increases the number of broadcast domains.
F. Switches that are configured with vlans make forwarding decisions based on both layer 2 and layer 3 address information.


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1.多項(xiàng)選擇題Which two commands can be used to verify a trunk link configurationt status on a given cisco switch?()

A. show interfaces interface
B. show interfaces interface trunk
C. show interfaces interface switchport
D. show ip interface brief
E. show interfaces vlan

2.多項(xiàng)選擇題Which commands are required to properly configure a router to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0?()

A. Router(config)#router ospf 1
B. Router(config)#router ospf 0
C. Router(config)#router ospf area 0
D. Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
E. Router(config-router)#network 192.168.16.0 0.0.0.255 0
F. Router(config-router)#network 192.168.16.0 255.255.255.0 area 0

3.多項(xiàng)選擇題Which two statements describe the advantages to the use of RIP over the use of OSPF?()

A. RIP requires less time to converge
B. RIP uses less bandwidth
C. RIP is less complex to configure
D. RIP demands fewer router resources
E. RIP has a more accurate metric

4.多項(xiàng)選擇題Which three elements must be used when you configure a router interface for vlan trunking?()

A. one IP network or subnetwork for each subinterface
B. subinterface numbering that matches vlan tages
C. subinterface encapsulation identifiers that match vlan tags
D. a management domain for each subinterface
E. one physical interface for each subinterface
F. one subinterface per vlan

5.多項(xiàng)選擇題Which of the following describes the roles of devices in a WAN?()

A. A CSU/DSU terminates a digital local loop
B. A modem terminates a digital local loop
C. A CSU/DSU terminates an analog local loop
D. A modem terminates an analog local loop
E. A router is commonly considered a DTE device
F. A router is commonly considered a DCE device

6.多項(xiàng)選擇題Which of the following are key characteristics of PPP?()

A. can be used over analog circuits
B. maps Layer 2 to Layer 3 address
C. encapsulates several routed protocols
D. supports IP only
E. provides error correction

7.多項(xiàng)選擇題Which can be done to secure the virtual terminal interfaces on a router?()

A. Administratively shut down the interfaces.
B. Physically secure the interfaces.
C. Configure a virtual terminal password and login process.
D. Enter an access list and apply it to the terminal interfaces using the access-class command.
E. Create an access list and apply it to the terminal interfaces using the access-group command.

8.多項(xiàng)選擇題Which two are features of IPv6?()

A.multicast
B.broadcast
C.allcast
D.podcast
E.anycast

9.多項(xiàng)選擇題Which two states are the port states when RSTP has converged?()

A.blocking
B.learning
C.disabled
D.forwarding
E.listening

10.多項(xiàng)選擇題Which two are advantages of static routing when compared to dynamic routing?()

A. Security increases because only the network administrator may change the routing tables.
B. Configuration complexity decreases as network size increases.
C. Routing updates are automatically sent to neighbors.
D. Route summarization iscompued automatically by the router.
E. Routing traffic load is reduced when used in stub network links
F. An efficient algorithm is used to build routing tables,using automatic updates.
G. Routing tables adapt automatically to topology changes.

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Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()

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A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?()

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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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Which command displays the CHAP authentication process as it occurs between two routers?()

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Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?()

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What is the purpose of the cisco Vlan Trunking protocol?()

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At which layer of the OSI model is RSTP used to prevent loops?()

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While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?()

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A router receives information about network 192.168.10.0/24 from multiple sources.What will the router consider the most reliable information about the path to that network?()

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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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