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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Addressing and Routing Solutions | 25% | - Create stable, secure, and scalable routing designs for Layer 3 - Determine IPv6 migration strategy - Create structured addressing designs |
| Topic 2: WAN for Enterprise Networks | 20% | - Design WAN connectivity - Design SD-WAN solution - Design QoS for WAN |
| Topic 3: Services | 10% | - Design end-to-end QoS policy - Design network management |
| Topic 4: Enterprise Campus Security | 20% | - Design network security - Design network access control |
| Topic 5: Advanced Enterprise Campus Networks | 25% | - Design for high availability - Design Layer 2 and Layer 3 campus networks - Design campus network services (QoS, multicast, etc.) |
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NEW QUESTION # 108 
Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?
Answer: B
NEW QUESTION # 109
At which layer does Cisco Express Forwarding use adjacency tables to populate addressing information?
Answer: D
Explanation:
Cisco Express Forwarding uses the adjacency table to store the Layer 2 rewrite information needed to forward packets efficiently. CEF separates forwarding decisions into the Forwarding Information Base and the adjacency table. The FIB identifies the best next hop based on routing information, while the adjacency table contains the directly connected next-hop details, including the MAC address and encapsulation rewrite string used on the outgoing interface. That is why the correct layer is Layer 2. CEF is not using the adjacency table to populate Layer 3 routes; the routing table and FIB handle Layer 3 reachability. It is also not a Layer 1 function because physical signaling does not determine the next-hop rewrite. Layer 4 is unrelated to CEF adjacency resolution. In a campus or WAN design, CEF matters because it allows hardware or optimized software forwarding without process-switching every packet. Correct ARP, neighbor discovery, and adjacency formation are therefore essential to fast packet forwarding, especially when convergence or high- throughput forwarding is required.
NEW QUESTION # 110
Which PIM mode uses a shared tree only?
Answer: C
Explanation:
The correct answer is bidirectional PIM. Cisco describes bidirectional PIM as a multicast mode designed for many-to-many applications where traffic is forwarded only along a shared tree rooted at the rendezvous point.
Unlike traditional PIM Sparse Mode, BIDIR-PIM does not build source-specific shortest-path trees for each active source. That design reduces multicast state in the network because routers maintain group state rather than separate source and group state for every sender. PIM Sparse Mode initially uses a shared tree through the RP, but it can switch to source trees after receivers and routers learn the active source. Dense mode floods and prunes and is not a shared-tree-only model. Source-specific multicast explicitly uses source-specific joins and does not use an RP-based shared tree. The wording "shared tree only" is the key distinction: BIDIR-PIM is built for scalable many-to-many multicast, accepts some non-shortest-path forwarding tradeoff, and avoids per-source state growth. Therefore, the stored answer must be corrected to bidirectional. Reference topics:
BIDIR-PIM, shared trees, rendezvous points, many-to-many multicast scaling, PIM-SM source-tree behavior.
NEW QUESTION # 111
An organization plans to deploy multicast across two different autonomous systems. Their solution must allow RPs to:
- discover active sources outside their domain
- use the underlying routing information for connectivity with other
RPs
- announce sources joining the group
Which solution supports these requirements?
Answer: C
Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-3s/asr903/imc- pim-xe-3s-asr903-book/imc_msdp.pdf
NEW QUESTION # 112
Which consideration must be made when designing a Cisco SD-Access fabric underlay?
Answer: B
Explanation:
Explanation
Look under "Underlay Network Design". Its the second bullet point.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Underlay_Network
NEW QUESTION # 113
......
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