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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: WAN for Enterprise Networks | 20% | - VPN design
- WAN connectivity options
|
| Topic 2: Advanced Enterprise Campus Networks | 25% | - Layer 3 campus design
- Layer 2 campus design
|
| Topic 3: Security Services | 10% | - Security architecture design
|
| Topic 4: Software-Defined Access (SDA) | 5% | - SD-Access architecture - Control plane and data plane design - Fabric design and deployment |
| Topic 5: Network Services | 15% | - Quality of Service (QoS)
- IP services
|
| Topic 6: Advanced Addressing and Routing Solutions | 25% | - Routing protocol design
|
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NEW QUESTION # 353
An engineer is creating a design to enable IPv6 to run on an existing IPv4 IS-IS network. The IPv4 and IPv6 topologies will match exactly, and the engineer plans to use the same router levels for each protocol per interface. Which IS-IS design is required?
Answer: C
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_isis/configuration/15-mt/irs-15-mt-book/ip6-route-mu
NEW QUESTION # 354
Refer to the exhibit.
Which solution decreases the EIGRP convergence time?
Answer: D
NEW QUESTION # 355
Which type of rendezvous point deployment is standards-based and support dynamic RP discovery?
Answer: C
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 # 356
An engineer must design a QoS solution for a customer. The network currently supports data only, but the customer will roll out VoIP and IP video in conjunction with the new QoS solution. The engineer plans to use DiffServ. To ensure priority for voice services, which model must the design include?
Answer: A
Explanation:
The 8-class QoS model is the appropriate DiffServ design when an enterprise is adding voice and video to an existing data network and needs priority treatment for voice. Cisco enterprise QoS designs commonly evolve from a simple data-only model to a multi-class model that separates routing/control, voice bearer, video, signaling, transactional data, bulk data, scavenger traffic, and default traffic. This separation is important because voice requires strict low latency, low jitter, and minimal loss, while video usually requires guaranteed bandwidth but must not starve voice or network control traffic. A 4-class model can be too coarse when both VoIP and IP video are introduced because it often collapses distinct traffic types into broad queues. A 12-class model may be appropriate for very mature or complex environments, but it is more operationally demanding.
The 6-class model can work in some cases, but the common Cisco campus and WAN baseline for mixed voice, video, and data is the 8-class model. Reference topics: DiffServ QoS, enterprise QoS class models, voice priority queue, video classification, DSCP design.
NEW QUESTION # 357
A customer's current Layer 2 infrastructure is running Spanning Tree 802.1d, and all configuration changes are manually implemented on each switch. An architect must redesign the Layer 2 domain to achieve these goals:
* reduce the impact of topology changes
* reduce the time spent on network administration
* reduce manual configuration errors
Which two solutions should the architect include in the new design? (Choose two.)
Answer: A,E
Explanation:
Section: Advanced Enterprise Campus Networks
NEW QUESTION # 358
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