to make CEF tables smaller
to enable label switching on the frame mode interface
to restrict MPLS availability to predefined time periods
to restrict label switching to a limited number of networks
to restrict end users from seeing the routers in the MPLS network
第1题：
Cisco IOS is the software used on the vast majority of Cisco Systems routers and current Cisco network switches. As a network administrator, you are required to configure MPLS on Cisco IOS. In such a situation,which three of the following steps are necessary to take?（）
A. Start LDP.
B. Enable CEF switching.
C. Configure conditional label advertising.
D. Enable label switching on frame mode interfaces.
E. disable IP TTL propagation
F. configure conditional label advertising
第2题：
A. to make CEF tables smaller
B. to enable label switching on the frame mode interface
C. to restrict MPLS availability to predefined time periods
D. to restrict label switching to a limited number of networks
E. to restrict end users from seeing the routers in the MPLS network
第3题：
A.Multi ProtocolLabel Switching
B.Multi PathLabel Switching
C.Multi plexLabel Switching
D.Multiprovision Label Switching
第4题：
As a network administrator, you are required to deploy MPLS technology. During the deployment, it is recommended to apply conditional label advertising. What is most probably the reason for that?（）
第5题：
There is MPLS VPN traffic traversing through a TE intermediate router. What is the MPLS packet labelstack sequence （from outer to inner） for the VPN traffic on this router？（）
第6题：
A. start LDP
B. enable CEF switching
C. configure the MPLS ID
D. disable IP TTL propagation
E. configure conditional label advertising
F. enable label switching on frame mode interfaces
第7题：
Why is it appropriate to use conditional label advertising when deploying MPLS? （）
第8题：
The router SIS-R has been configured in a CIS network. As a network administrator, you were required to enable MPLS on that router.Which of the following description is making sense on the basis of the output information?（）
A. CEF switching is only needed to forward labeled packets.
B. CEF switching is needed on both ingress and egress interfaces on which MPLS is enabled.
C. Interface-level CEF switching is needed only on egress interfaces that are sending IP packets on which the egress LSR performs the label imposition process.
D. Interface-level CEF switching is needed only on ingress interfaces that are receiving IP packets on which the ingress LSR performs the label imposition process.
第9题：
In the context of MPLS，what is the correct action to be performed when an aggregate label is received ？（）
第10题：
Using more than one label on a single packet is required in what context？（）