Which IOS features are used to avoid Routing loops when dynamic Routing protocols are used between
PE and CE in MPLS-VPN networks?
A. BGP cost community
B. BGP feature allow-as in
C. Access-list Control in Distance Vector protocol like RIP and EIGRP.
D. SHAM links with OSPF
E. RPF Reverse Path forwarding. F. Site Of Origin SOO.
Correct Answer: CF
In a frame ,the MPLS label is imposed
A. Before the layer 2 header
B. Within the Layer 3 header
C. After the Layer3 header and before Layer2 header
D. After the Layer2 header and before Layer3 header
Correct Answer: D
What is used to provide read access to QoS configuration and statistics information on Cisco platforms that support Modular QoS CLI (MQC)?
A. Cisco SDM QoS Wizard
B. Cisco AutoQoS
D. Cisco Class-Based QoS MIB.
E. Cisco NBAR Discovery
Correct Answer: D
which of the following descriptions about urpf loose mode is correct?
A. It is typically used on point-to-point interfaces where the same interface isused for both directiongs of packet flows; if the source address has a return route in the FIB table,it is then checked against the adjacency table to ensure the same interface receiving the packet is the same interface used for the return path
B. If a packet fails the uRPF loose mode check, the packet is then transmitted and creates a log message
C. It is typically used on multipoint interfaces or on routers where asymmetrical routing is used(packets are received on one interface but the return path is not on the same interface);loose mode verifies a source
address by looking in forwarding information base(FIB). Created by routing protocols, to verify there is a return route to the source and to venrify that the path uses a valid interface
D. None of above
E. If a packet fails the uRPF loose mode check ,the packet is then dropped
Correct Answer: CE
What is periodically multicasted (every 10 seconds) by the DIS on a LAN to ensure IS- IS Link State
Correct Answer: C
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