A customer migrates from a traditional Layer 2 data center network into a new SDN-based spine-and-leaf VXLAN EVPN data center within the same location. The networks are joined to enable host migration at Layer 2. Which activity should be completed each time a legacy network is migrated?
Answer : B
B (Configure VXLAN VNID): Each VLAN being migrated must be mapped to a VXLAN VNID for integration into the EVPN fabric. This allows the legacy VLAN to participate in the VXLAN-based Layer 2 overlay and support host mobility.
Other options explained:
A: Pruning is not directly related to migration activation.
C/D: Type 2 routes (MAC/IP routes) and BGP advertisements happen automatically after proper VNID configuration.
Question 2
Which Interconnectivity method offers the fastest convergence in the event of a unidirectional issue between three Layer 3 switches connected together with routed links in the same rack in a data center?
Answer : C
BFD (Bidirectional Forwarding Detection) provides sub-second failure detection at the control plane level, making it the fastest convergence mechanism for Layer 3 routing protocols.
Fiber Ethernet typically offers higher reliability and lower latency than copper.
When combined, Fiber with BFD provides the most robust and quickest convergence for unidirectional failures in a routed data center environment.
Why other options are incorrect:
A & B: Copper adds more physical susceptibility to errors.
B & D: UDLD is a Layer 2 unidirectional detection mechanism, not optimized for Layer 3 convergence.
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Question 3
A multinational organization has decided to migrate its business-critical operations to a hybrid cloud solution They are concerned about data governance, particularly regarding data sovereignty, ownership, and locale The company operates in multiple countries with strict data privacy regulations Which solution best ensures compliance with data governance regulations'?
Answer : D
Question 4
The Layer 3 control plane is the intelligence over the network that steers traffic toward its intended destination Which two techniques can be used in service provider-style networks to offer a more dynamic, flexible, controlled, and secure control plane design? (Choose two.)
Answer : A, E
Question 5
Which two business areas support continuity during emergencies by understanding data flows and business processes? (Choose two)
Answer : C, E
C: Disaster Recovery focuses on restoring services and data after a catastrophic event.
E: Business Continuity is a broader framework ensuring operations can continue despite disruptions. Both require knowledge of critical data flows and dependencies.
Other options:
A & D: Device management is operational---not directly focused on emergency business continuity.
B: BYOD is a policy concern related to access and security, not continuity.
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Question 6
Which two conditions must be met for EIGRP to maintain an alternate loop-free path to a remote network? (Choose two.)
Answer : A, E, E
For EIGRP to maintain loop-free alternate paths, the feasibility condition must be met:
A . The Reported Distance (RD) must be lower than the router's Feasible Distance (FD).
Question 7
How can EIGRP topologies be designed to converge as fast as possible in the event of a point-to-point link failure?
Answer : D
EIGRP's convergence time is heavily impacted by the size of the query domain --- the group of routers involved when a route goes into active state. The larger the query domain, the longer the convergence. Summarization naturally bounds query propagation because routers receiving a summary have no knowledge of individual prefixes beyond that summary, preventing them from being queried about specifics they don't track.
This design technique is emphasized in CCDE v3.1 because:
Summarization reduces the query scope.
Faster convergence happens as fewer routers process queries.
Hierarchical design is enabled for stability and scalability.
Why other options are incorrect:
A: Distribute lists filter prefixes but don't reduce query propagation.
B & C: Triangulated or squared physical topology doesn't control protocol-level query scope.
E: Default routes may help limited routing domains but don't optimize EIGRP convergence specifically.
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