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| Section | Objectives |
|---|---|
| WAN and Edge Connectivity Design | - Traditional WAN and internet edge design - SD-WAN architecture and design considerations |
| Enterprise Campus Network Design | - Spine-leaf and hierarchical design models - Campus LAN architecture |
| Security Design in Enterprise Networks | - Segmentation and access control design - VPN and perimeter security architecture |
| Network Automation and Programmability | - API-driven network automation concepts - Controller-based networking design |
| Enterprise Network Design Principles | - Design methodologies and best practices - Scalability and high availability design |
| Network Services Design | - Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP) |
>> Test 300-420 Questions Answers <<
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NEW QUESTION # 160
Drag and drop the elements from the left onto the YANG models where they and used on the right.
Answer:
Explanation:
Explanation:
Diagram Description automatically generated
NEW QUESTION # 161 
Refer to the exhibit A customer requires maximum uptime for the data plane between R1 and R3 running OSPF Which solution must the design include for high availability if the routing process on R2 requires maintenance?
Answer: C
Explanation:
Graceful restart is the correct high-availability design when the routing process on an intermediate OSPF router must undergo maintenance while the data plane remains available. Cisco describes graceful restart as a mechanism that allows a restarting router to continue forwarding traffic while neighbors temporarily preserve adjacency and route information. In OSPF, helper-capable neighbors assist the restarting router by maintaining forwarding state during the restart interval, preventing unnecessary route withdrawal and reconvergence. BFD is a failure-detection mechanism, so it would actually accelerate detection of a failure rather than preserve the forwarding path during planned process maintenance. Nonstop forwarding must be enabled on the device performing the control-plane restart and supported by neighbors, but the broad answer choice that captures the required routing-protocol behavior across the design is graceful restart on the participating routers. Configuring it only on R1 and R3 or only on R3 would not support the R2 process maintenance scenario. Reference topics: OSPF graceful restart, NSF, helper mode, control-plane maintenance, data-plane availability.
NEW QUESTION # 162
Which OSPF area blocks LSA Type 3, 4 and 5, but allows a default summary route?
Answer: C
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION # 163
Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?
Answer: B
Explanation:
Bootstrap Router is the standards-based mechanism for dynamic Rendezvous Point discovery in PIM Sparse Mode. Cisco supports several RP discovery methods, but they are not equivalent from a standards perspective.
Auto-RP is Cisco-developed and widely used in Cisco environments, but it is not the standards-based choice.
Static RP configuration is simple and deterministic, but it does not provide dynamic discovery and requires every router to be configured consistently. Anycast RP is a redundancy and load-sharing design in which multiple RPs share the same RP address, usually with MSDP or another synchronization method, but it is not the RP discovery mechanism itself. BSR allows candidate RPs and candidate BSRs to advertise RP-set information through the PIM domain so routers can learn RP mappings dynamically. This makes BSR suitable for large PIM domains where manual static RP configuration becomes operationally risky. In design, the architect should also protect BSR/RP placement, scope group ranges, and validate convergence behavior during RP or BSR failure. Reference topics: PIM-SM, Bootstrap Router, RP discovery, Auto-RP comparison, multicast control-plane design.
NEW QUESTION # 164
Drag and drop the description from the left onto the corresponding WAN connectivity types and categories on the right.
Answer:
Explanation:
NEW QUESTION # 165
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