NEW QUESTION NO: 70
You have been asked to provision a service provider's network to accommodate Layer 3 VPNs as defined in RPC 4364. Which three tasks must be performed before the provider core is ready to carry VPN traffic?
(Choose three.)
A. All P routers and PE routers must be configured to support MPLS administrative-groups (colors)
B. All P routers and PE routers must have a discovery protocol such as LLDP or CDP enabled
C. All P routers and PE routers must have a signaling protocol such as RSVP or LDP enabled
D. All P routers and PE routers must have MPLS reach ability to PE routers
E. All PE routers must be configured to support Multiprotocol BGP (MP-BGP)
Answer: C,D,E
NEW QUESTION NO: 71
Which statement is true regarding IS-IS?
A. IS-IS PDUs are also known as LSAs
B. IS-IS PDUs are hosts that send and receive packets
C. IS-IS PDUs are transmitted at Layer 3
D. All IS-IS routers run a single routing algorithm
Answer: D
NEW QUESTION NO: 72
What are two benefits of using MVRP? (Choose two.)
A. It reduces network administration and overhead
B. It dynamically creates and prunes VLANs
C. It provides redundancy for Layer 2 interfaces
D. It dynamically translates Layer 2 addresses to Layer 3 addresses
Answer: A,B
Explanation/Reference:
Explanation:
The Multiple VLAN Registration Protocol (MVRP) simplifies VLAN management by dynamically managing VLAN registration in a LAN. MVRP helps reduce administration and network overhead by dynamically pruning VLAN information when a switch no longer has active access ports, and by dynamically creating newly configured VLANs.
NEW QUESTION NO: 73
Which command verifies that graceful Routing Engine Switchover (GRES) is operational?
A. show system switchover on the master RE
B. show system switchover on the backup RE
C. show task replication on the master RE
D. show task replication on the backup RE
Answer: B
Explanation/Reference:
Explanation:
The show system switchover command, which is used to verify whether graceful Routing Engine switchover is enabled and that the databases are synchronized, must be issued on the backup RE to get the desired output.
NEW QUESTION NO: 74
What are two similarities between OSPF and IS-IS? (Choose two.)
A. Both have a built-in mechanism to provide address summarization between areas.
B. Both use hello packets to form and maintain adjacencies.
C. Both elect a designated router and a backup designated router.
D. Both use the Dijkstra algorithm to construct a shortest-path tree.
Answer: B,D
NEW QUESTION NO: 75
R3 is an OSPF router connect to both Area 0 and Area 1. Area 1 has been configured as a stub area.
Which two LSA types does R3 suppress from Area 1? (Choose two.)
A. Router LSA
B. External LSA
C. Summary LSA
D. ASBR Summary LSA
Answer: B,D
Explanation/Reference:
Explanation:
Stub areas are areas through which, or into which, AS external advertisements are not flooded (LSA types
4 and 5).
NEW QUESTION NO: 76
Click the Exhibit button
An operator is unable to establish any IS-IS adjacencies on a router in the network.
Based on the configuration shown in the exhibit, what is the problem?
A. The ISO address for interface loO is not in hex format
B. Each network interface needs a unique family ISO address
C. The IS-IS level for an each interface must be specified
D. Interface loO must be configured in the IS-IS hierarchy
Answer: D
NEW QUESTION NO: 77
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)
A. Type 2 LSAs are not created for this link.
B. Type 2 LSAs are created for this link.
C. Designated router election does not occur on this link.
D. Designated router election occurs on this link.
Answer: A,C
Explanation/Reference:
A: Type 2 - Network LSA - the designated router (DR) on a broadcast segment (e.g. Ethernet) lists which routers are joined together by the segment. Type 2 LSAs are flooded across their own area only. The link- state ID of the type 2 LSA is the IP interface address of the DR.
C: Designated router (DR) and BDR election is done via the Hello protocol. Hello packets are exchanged via IP multicast packets (Appendix B) on each segment. Multicast packets are not sent on p2p links.
References: https://en.wikipedia.org/wiki/Link-state_advertisement
http://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/7039-1.html#t21
NEW QUESTION NO: 78
-- Exhibit --
protocols {
isis {
interface lo0.0;
interface ge-0/0/0.100;
}
}
-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, what will be the IS-IS levels enabled on the interface ge-0/0/0.100?
A. Level 1 and Level 2
B. Level 1, Level 2, and Level 3
C. Level 1 only
D. Level 2 only
Answer: A
NEW QUESTION NO: 79
R1 is an OSPF router with a priority of 100 and has been elected as the designated router (DR). R2 is the backup designated router (BDR) with a priority of 50. A third router, R3, comes online with a priority of 200.
Which routers will be the DR and BDR after R3 comes online?
A. R1 will be the DR and R2 will be the BDR.
B. R3 will be the DR and R1 will be the BDR.
C. R3 will be the DR and R2 will be the BDR.
D. R2 will be the DR and R1 will be the BDR.
Answer: A
NEW QUESTION NO: 80
-- Exhibit --
[edit]
user@router# show protocols bgp
group ibgp {
type internal;
local-address 3.3.3.3;
family inet;
neighbor 2.2.2.2;
}
[edit]
user@router# show routing-instances
VRF {
instance-type vrf;
interface xe-0/0/1.0;
route-distinguisher 3.3.3.3:100;
vrf-target target:100:100;
vrf-table-label;
}
[edit]
user@router# show protocols mpls
interface all;
[edit]
user@router# show protocols rsvp
interface all;
-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, what is missing in the configuration to make the Layer 3 VPN functional? (Choose two.)
A. the LDP protocol configuration
B. a virtual circuit ID
C. an NLRI of family inet-vpn unicast
D. a label-switched path
Answer: C,D