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.
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
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
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
What is periodically multicasted (every 10 seconds) by the DIS on a LAN to ensure IS- IS Link State
The ASBR-summary LSA is:
A. Generated by the ABR and describes reachabilty to the ASBR for routers in the same area with the
B. Generated by the ASBR and describes reachability to itself
C. Generated by the ABR and describes reachabilty to the ASBR for routers in a different area from the
D. Generated by the ASBR and describes reachabilty to the ABR
Referring to the exhibit, what could be preventing the R1 router from receiving any prefixes from the R2
A. The neighbor 192.168.31.2 next-hop-self command is missing on R2
B. R1 is using the wrong remote AS number in its neighbor 192.168.31.1 remote-as configuration
C. There is a TCP session establishment problem between R1 and R2
D. The no sync command is missing on R1
E. The no sync command is missing on R2
F. There is a BGP version mismatch between R1 and R2
What statement about Transit AS is true?
A. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS.
B. None of the above.
C. Traffic and prefixes originating from Source AS are carried across a Transit AS to reach their destination AS.
D. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their destination AS.
The OSPF External LSA for prefix x.x.x.x exists in the OSPF database, but the prefix is not installed in the routing table. Which are possible explanations?
A. ASBR origination the LSA is not reachable.
B. Route to the Forwarding Address is an internal OSPF route.
C. Inbound distribute-list is configured under the ospf process and it is denying x.x.x.x
D. Route to the ASBR does not follow the same path as the one to the Forwarding Address.
E. Route to the Forwarding Address in not an internal OSPF route.
When provisioning for Interactive-Video(e,g,video conferencing traffic)which three statements depicts the correct requirements?
A. Loss should be no more than 1 percent.
B. One-way latency should be no more than 150 ms
C. Jitter should be no more than 30 ms
D. Loss should be no more than 3 percent
E. One-way latency should be no more than 150/2=75 ms
F. Jitter should be no more than 300 ms
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