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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Services | 10% | - Design end-to-end QoS policy - Design network management |
| Topic 2: Enterprise Campus Security | 20% | - Design network access control - Design network security |
| Topic 3: WAN for Enterprise Networks | 20% | - Design SD-WAN solution - Design QoS for WAN - Design WAN connectivity |
| Topic 4: Advanced Enterprise Campus Networks | 25% | - Design for high availability - Design campus network services (QoS, multicast, etc.) - Design Layer 2 and Layer 3 campus networks |
| Topic 5: Advanced Addressing and Routing Solutions | 25% | - Determine IPv6 migration strategy - Create stable, secure, and scalable routing designs for Layer 3 - Create structured addressing designs |
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質問 # 328
Refer to the exhibit.
EIGRP has been configured on all links. The spoke nodes have been configured as EIGRP stubs, and the WAN links to R3 have higher bandwidth and lower delay than the links to R4. When a link failure occurs at the R1-R2 link, what happens to traffic on R1 that is destined for a subnet attached to R2?
正解：B
質問 # 329
A company is running BGP on a single router, which has two connections to the same ISP. Which BGP feature ensures traffic is load balanced across the two links to the ISP?
正解：A
解説：
BGP Multipath Load Sharing is the feature used when a single router has two parallel BGP paths to the same ISP and the design goal is to install more than one eligible BGP path in the routing table. By default, BGP selects a single best path after evaluating path attributes such as weight, local preference, AS path, origin, MED, eBGP over iBGP, IGP metric to next hop, and tie breakers. When the competing paths are sufficiently equivalent and BGP multipath is enabled, Cisco IOS can install multiple BGP next hops for the same prefix and allow the forwarding plane to load share across both links. Multihop is used to establish BGP sessions to non-directly connected neighbors, not to load balance. Next-Hop Address Tracking improves convergence by tracking next-hop reachability, but it does not itself create load sharing. AS-path prepending intentionally makes a path less preferred for inbound traffic engineering. Therefore, the correct BGP feature for balancing outbound traffic across two links to the same ISP is Multipath Load Sharing.
質問 # 330
Refer to the exhibit. An engineer is designing a redistribution solution for a customer. The customer recently acquired another company and decided to Integrate the new network running RIPv1 with the company's existing network. Which redistribution technique must the engineer select to ensure the multipoint two-way redistribution does not cause routing loops?
正解：B
解説：
Using distribute-lists inbound under the EIGRP process, you can filter out the RIPv1 learned prefixes. This prevents the prefixes learned via RIPv1 from being redistributed back into EIGRP, thus avoiding potential routing loops during the redistribution process.
質問 # 331
Which design element should an engineer consider when multicast is included in a Cisco SD-Access architecture?
正解：A
解説：
Explanation
Multicast traffic is transported in the overlay, in the EID space, for both wired and wireless clients
https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKEWN-2020.pdf
https://www.cisco.com/c/dam/en/us/td/docs/cloud-systems-management/network-automation-and-management/d
質問 # 332
Which solution allows overlay VNs to communicate with each other in an SD-WAN Architecture?
正解：C
解説：
Cisco SD-Access uses virtual networks as macro-segmentation boundaries, and those VNs are represented as VRF instances in the fabric. By design, separate VNs do not communicate directly inside the overlay unless the design introduces controlled inter-VN routing. Cisco SD-Access designs commonly use an external fusion router, firewall, or shared-services device to map fabric VNs to external VRFs and selectively exchange routes between them. That is the correct design because it preserves segmentation while allowing policy- controlled access to shared resources or selected networks. GRE tunnels between fabric edges are not the normal SD-Access inter-VN communication method and would bypass the intended fabric policy model.
Security Group Tags provide microsegmentation within or across policy domains, but SGTs do not by themselves leak routes between separate virtual networks. Route leaking on fabric border nodes is not the recommended standalone answer here because inter-VN communication is normally provided through a fusion device or firewall outside the fabric. Therefore, the correct solution is external fusion routing with controlled VRF route exchange.
質問 # 333
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