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| Section | Weight | Objectives |
|---|---|---|
| Advanced Addressing and Routing Solutions | 25% | - Create stable, secure, and scalable routing designs for Layer 3 - Create structured addressing designs - Determine IPv6 migration strategy |
| Advanced Enterprise Campus Networks | 25% | - Design Layer 2 and Layer 3 campus networks - Design campus network services (QoS, multicast, etc.) - Design for high availability |
| Enterprise Campus Security | 20% | - Design network access control - Design network security |
| WAN for Enterprise Networks | 20% | - Design WAN connectivity - Design QoS for WAN - Design SD-WAN solution |
| Services | 10% | - Design network management - Design end-to-end QoS policy |
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NEW QUESTION # 56 
Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)
Answer: A,E
Explanation:
The design goal is to reduce the impact of branch and remote-office instability while using the fewest possible ABRs. In OSPF, topology changes inside an area trigger SPF calculations for routers in that area. Creating separate areas behind aggregation points contains those changes and prevents every branch link flap from affecting the entire backbone. The minimal-ABR approach is to place the area boundary at the higher aggregation layer, where fewer routers connect the new areas to area 0. In the described topology, R5 and R6 can serve as ABRs for both sets of downstream aggregation connections. That supports a new area for the R1
/R2 branch connections with R5 and R6 as ABRs, and a new area for the R3/R4 remote-office connections with R5 and R6 as ABRs. Making R1, R2, R3, and R4 the ABRs increases the ABR count and spreads area- boundary functions deeper into the network. A single new area for all downstream connections would reduce isolation between different failure domains. The selected design improves stability and keeps the OSPF hierarchy clean.
NEW QUESTION # 57 
Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)
Answer: A,B
NEW QUESTION # 58 
Refer to the exhibit. An engineer must connect the IPv6 island to the IPv4-only network to provide IPv6 hosts access to file servers and DNS services in the IPv4 network. Which NAT should the engineer choose?
Answer: B
NEW QUESTION # 59
An engineer must design a QoS solution for a customer that is connected to an ISP over a 1Gbps link with a 100Mbps CIR. The ISP aggressively drops all traffic received over which is causing numerous TCP retransmissions. The customer is not using any RTP applications but wants to maximize bandwidth usage up to the CIR. Which QoS solution engineer choose?
Answer: B
Explanation:
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-policing/19645- policevsshape.html
NEW QUESTION # 60
An existing network solution is using BFD in echo mode. Several of the network devices are experiencing high CPU utilization which an engineer has determined is related to the BFD feature. Which solution should the engineer leverage to reduce the CPU load?
Answer: B
Explanation:
When BFD echo mode contributes to high CPU utilization on lower-resource devices, the practical design response is to use slower BFD timers for those peers rather than continuing to run an overly aggressive failure- detection profile everywhere. Cisco BFD provides fast failure detection, but timer values must match platform capability, interface scale, and the operational value of subsecond detection. Echo mode can generate frequent packets, and in some environments the processing or punt behavior can create measurable CPU pressure.
Slowing the timers reduces packet rate and control-plane stress while keeping BFD available for faster detection than traditional routing protocol dead timers. Moving to asynchronous mode may be appropriate in some designs, but the listed option says "BED" and does not directly address the requirement as cleanly as reducing timer aggressiveness. BFD multihop is used for non-directly connected peers and is not a CPU-relief mechanism. Carrier delay changes interface state notification behavior, but it does not solve BFD packet processing load. Therefore, implement slower timers on peers with limited resources. Reference topics: BFD design, echo mode, failure-detection timers, CPU utilization.
NEW QUESTION # 61
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