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

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）

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

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

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

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

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

A.show ip route ∣ to tftp：//192.168.1.1/route.txt
B.show ip route ∣ tee tftp：//192.168.1.1/route.txt
C.show ip route ∣ include tftp：//192.168.1.1/route.txt
D.show ip route ft include tJtp：//19Z168.1.1/route.txt
E.show ip route ∣ redirect tftp：//192.168.1.1/route.txt

A.Link-local address used for next-hop addresses
B.Interface can be added to RIP routing process in either interface configuration mode or in routerconfiguration mode
C.Uses a multicast to send routing updates
D.Use hop count as a metric
E.Distance-vector routing protocol
F.Maximum hop count is 15 with 16 being "unreachable"

A.The default-metric command configured under the appropriate interface
B.The metric parameter in the network command of a routing process
C.The metric parameter in the redistribute command
D.The default-metric command
E.A route-map containing a seed command
F.A route map containing a metric command