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单选题
When configuring a multipoint GRE （mGRE） tunnel interface， which one of the following is NOT a valid configuration option：（）
A
tunnel source
B
tunnel destination
C
tunnel key
D
ip address
E
tunnelvrf
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A route-based VPN is required for which scenario？（）A、when the remote VPN peer is behind a NAT deviceB、when multiple networks need to be reached across the tunnel and GRE cannot be usedC、when the remote VPN peer is a dialup or remote access clientD、when a dynamic routing protocol is required across the VPN and GRE cannot be used
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单选题What is the advantage of using a multipoint interface instead of point-to-point subinterfaces when configuring a Frame Relay hub in a hub-and-spoke topology?（）A
it avoids split-horizon issues with distance vector routing protocols.B
IP addresses can be conserved if VLSM is not being used for subnetting.C
A multipoint interface offers greater security compared to point-to-point subinterface configurations.D
The multiple IP network addresses required for a multipoint interface provide greater addressing flexibility over point-to-point configurations.
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单选题When configuring an explicit path, what does the next-address entry identify?（）A
the tunnel end pointB
the tunnel start pointC
a specific node to be traversedD
the node prior to the tunnel end point
考题
单选题When configuring a serial interface on a router, what is the default encapsulation?（）A
atm-dxiB
frame-relayC
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lapbE
ppp
考题
单选题Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）A
When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interfaceB
When routing the packet, matching a route whose outgoing interface is the GRE tunnel interfaceC
When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interfaceD
When permitted by an ACL that was referenced in the associated crypto map
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多选题Cisco AutoQoS takes the interface type and bandwidth into consideration when configuring which three QoS features？（）Avoice compression methodologyBLLQCCRTPDrouting protocolELFIFtrust boundary
考题
单选题In which tunnel-less VPN topology do group members register with a key server in order to receivethe security association necessary to communicate with the group？（）A
Easy VPNB
GRE tunnelingC
Virtual Tunnel InterfacesD
Dynamic Multipoint VPNE
Group Encrypted Transport VPN
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