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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced Addressing and Routing Solutions | 25% | - IPv4 and IPv6 addressing design
|
| Topic 2: Network Services | 15% | - Quality of Service (QoS)
|
| Topic 3: Software-Defined Access (SDA) | 5% | - Fabric design and deployment - Control plane and data plane design - SD-Access architecture |
| Topic 4: WAN for Enterprise Networks | 20% | - WAN resiliency and high availability - WAN connectivity options
|
| Topic 5: Advanced Enterprise Campus Networks | 25% | - Layer 2 campus design
|
| Topic 6: Security Services | 10% | - Security architecture design
|
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NEW QUESTION # 24
When vEdge router redundancy is designed, which FHRP is supported?
Answer: D
Explanation:
When Cisco SD-WAN edge router redundancy is designed, VRRP is the supported first-hop redundancy protocol in the SD-WAN edge context. VRRP provides a virtual default gateway for LAN-side devices, allowing one WAN Edge router to act as the active gateway while another can take over if the active router or tracked condition fails. Cisco SD-WAN designs use VRRP with tracking and policy alignment so branch LAN traffic can fail over to the appropriate edge router while the SD-WAN overlay handles transport and tunnel selection. HSRP and GLBP are traditional campus first-hop redundancy protocols, but they are not the supported FHRP answer for vEdge router redundancy in this design context. OMP is the SD-WAN control- plane routing protocol used between WAN Edge routers and vSmart controllers; it is not a first-hop redundancy protocol for LAN hosts. Therefore, the correct FHRP for vEdge router redundancy is VRRP. The design should also ensure that VRRP priorities, tracking, and SD-WAN routing preferences align so traffic exits the intended edge during normal and failure conditions.
NEW QUESTION # 25
What is a feature of the IaaS model?
Answer: C
Explanation:
The IaaS (Infrastructure as a Service) model provides customers with virtualized computing resources over the internet, allowing them direct autonomy and control over the underlying hardware (such as servers, storage, and networking).
NEW QUESTION # 26
A network engineer must design an MSDP multicast solution to provide RP resilience in a network with two separate domains. Also, multicast sources and receivers must register with the local RP. Which solution must the engineer choose?
Answer: A
Explanation:
Explanation
Both can be true and correct because if you check the link:
https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/115011-anycast-pim.html Relevant running configurations Nexus 1 relevant configuration:
ip pim rp-address 10.1.1.1 group-list 224.0.0.0/4
ip pim anycast-rp 10.1.1.1 192.168.1.1
ip pim anycast-rp 10.1.1.1 192.168.2.2
interface loopback1
ip address 192.168.1.1/32
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
interface loopback7
ip address 10.1.1.1/32
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
interface Ethernet9/2
ip address 10.7.7.1/24
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
interface Ethernet9/3
ip address 172.16.1.2/24
ip router ospf 1 area 0.0.0.0
ip pim sparse-mode
NEW QUESTION # 27
Which routes does the overlay management protocol advertise in an SD-WAN overlay?
Answer: D
NEW QUESTION # 28
Refer to the exhibit.
A network engineer must improve the current IS-IS environment. The Catalyst switch is equipped with dual supervisors. Each time a stateful switchover occurs, the network experiences unnecessary route recomputation. Which solution addresses this issue if the upstream router does not understand graceful restart messaging?
Answer: C
Explanation:
Nonstop Routing is the correct solution when the upstream router does not understand graceful restart messaging. Cisco NSF and graceful restart depend on helper behavior from neighboring routers. During a supervisor switchover, the restarting device asks neighbors to preserve forwarding and adjacency state while the control plane recovers. If the neighbor does not support or understand the graceful restart signaling, NSF cannot deliver the intended benefit and route recomputation may still occur. NSR is different because it synchronizes routing protocol state between the active and standby supervisor internally, allowing the switch to preserve routing operation during stateful switchover without requiring graceful restart support from the neighbor. Remote LFA FRR protects against data-plane failures by precomputing repair paths, but it does not address supervisor switchover route recomputation. Aggressive IS-IS timers may make failure detection faster, but they increase control-plane churn and do not solve the lack of graceful-restart helper support.
Therefore, the Catalyst switch should use NSR for this design. Reference topics: IS-IS high availability, NSR, NSF, graceful restart helper support, stateful switchover.
NEW QUESTION # 29
......
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