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单选题
For best packet switching performance with crypto, what is the recommend packet switching path in a Cisco Teleworker Router?（）
A
Process Switching
B
Silicon Switching
C
Cisco Express Forwarding (CEF) Switching
D
Autonomous Switching
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单选题GMPLS is based upon：（）A
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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
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minimum jitterB
maximum jitterC
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average conceal rate
考题
单选题What best describes processing delay？（）A
the time required from receipt of the incoming frame， until the frame/packet has been queued for transmissionB
the time taken for a single packet to traverse the physical medium from one end to the otherC
the time taken to place a frame on the physical medium for transportD
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单选题Which of the following is not a characteristic of fast switching？（）A
Fast switching reducesa routers CPU utilization， compared to process switchingB
All packets of a flow， except for the first packet， use the information in the fast cacheC
It can be enabled with the interface command ip route-cacheD
Fast switching uses a fast cache maintained in a router’s control planeE
The fast cache contains information about how traffic from different data flows should beforwardedF
Even though the fast switching is enabled， the first packet of a flow is still process switched
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单选题Using more than one label on a single packet is required in what context？（）A
MPLS TEB
MPLS VPNC
When CEF switching and Label switching is doneD
In all the above circumstances
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