單項選擇題A network administrator enters the command clear ip route * and as a result he sees the message,"Please update the network documentation to record why the ip routing table was cleared." Which router feature was used in this case?()

A.NetFlow
B.SNMP
C.Debug
D.SysLog
E.EEM
F.CEF


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2.單項選擇題Which of the following is not a typical maintenance task within a network maintenance model?()

A.Providing technical customer support
B.Changing configurations
C.Updating software
D.Monitoring network performance
E.Replacing hardware
F.Scheduling backups

3.單項選擇題Which of the following correctly fills in the missing words of this sentence: An ARP request uses aaddress, whereas an ARP reply uses a address.()

A.broadcast, multicast
B.unicast, broadcast
C.broadcast, unicast
D.multicast, unicast
E.broadcast, broadcast
F.unicast, multicast

4.單項選擇題Which of the following events would not explain excessive CPU utilization?()

A.A large number of BGP sessions
B.A large BGP table
C.A router is configured with the following command: ip route 0.0.0.0 0.0.0.0 fa 0/1
D.All interface buffers are continually in use
E.A flapping interface
F.The router sends a large number of ARP requests

5.多項選擇題Which of the following statements are true for routers but not true for Layer 3 Ethernet switches?(Choose all that apply.)()

A.May have Ethernet as well as non-Ethernet interfaces
B.Traditionally used as a standalone device for inter-VLAN communication
C.Makes use of TCAMs
D.Uses subinterfaces to define trunks
E.Can use both Layer 2 and Layer 3 to make forwarding decisions
F.Allows the definition of Switched Virtual Interfaces(SVI)

6.多項選擇題You are using NBAR to get a statistical baseline for the applications running on your network butdiscover that some applications are not being recognized. Which of the following are possiblesolutions?(Choose all that apply.)()

A.Use the ip nbar pdlm command to allow NBAR to reference a new PDLM in flash memory
B.If NBAR doesn’t recognize certain applications you must contact Cisco and ask them to emailyou a new PDLM for that application
C.Use the ip nbar port-map command to allow NBAR to recognize certain applications with anev/port number
D.The applications not being recognized can be rerouted to an NBAR collector, which has a morecomplete list of applications
E.Use the copy nbar flash: command to download a new PDLM file to flash
F.Use the ip nbar pdlm command to download a new NBAR reference file from the Cisco website

7.多項選擇題Which of the following are troubleshooting targets common to both site-to-site and remote-accessVPNs?(Choose all that apply.)()

A.Routing loops
B.Misconfiguration of VPN end points
C.Overiapping IP address space
D.DMVPN
E.User profiles
F.MTU

8.單項選擇題

Which of the following is a valid representation of the following IPv6 address:
2001:0000:0000:0abc:0000:0000:000a:000b? Choose the answer with the least number of digits.()

A.2001:0000:0:abc:0000:0000:a:b
B.2001::abc::a:b
C.2001::abc:0:0:000a:000b
D.2001::0abc:0000:0000:a:b
E.2001:0000:0000:abc::a:b
F.2001::abc:0:0:a:b

9.單項選擇題Which of the following is not a typical wireless troubleshooting target?()

A.Quality of Service
B.Trunk configuration
C.Access lists
D.Routing protocol configuration
E.Power over Ethernet
F.DHCP configuration

10.單項選擇題Which of the following solutions will encapsulate IPv6 packets with IPv4 headers?()

A.Create an IPv4 tunnel and assign the tunnel IPv6 addresses
B.Create IPv4 interfaces on both ends of the network, and use either static routes or a routingprocess to direct IPv6 packets through those interfaces
C.IPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatible
D.Create IFV6 interfaces on both ends of the network, and use static routes to point the IPv4address to those interfaces
E.Use an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that process
F.Create an IPv4 tunnel and use the tunnel mode ipv6ip command

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