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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Services | 15% | - IP services
|
| Topic 2: Advanced Addressing and Routing Solutions | 25% | - Routing protocol design
|
| Topic 3: Software-Defined Access (SDA) | 5% | - Fabric design and deployment - SD-Access architecture - Control plane and data plane design |
| Topic 4: Security Services | 10% | - Security architecture design
|
| Topic 5: Advanced Enterprise Campus Networks | 25% | - Layer 3 campus design
|
| Topic 6: WAN for Enterprise Networks | 20% | - VPN design
|
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35. Frage
Which two statements describe source trees in a multicast environment? (Choose two.)
Antwort: A,E
Begründung:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16-5/imc-pim-xe-16-5-book
/imc-tech-oview.html
36. Frage
An engineer is designing an IPv4 addressing plan for an enterprise with 1000 branches. Each branch requires a prefix for data and a prefix for voice. Each prefix must accommodate up to 128 hosts, and prefixes must facilitate summarization at aggregation points in the network. The security team requires a simple method for identifying voce prefixes. Which allocation does the engineer recommend from the RFC1918 address space?
Antwort: D
Begründung:
The best allocation is to give each branch adjacent /24 prefixes from the 10.0.0.0/8 private range, using one
/24 for data and the next contiguous /24 for voice. Each /24 provides 254 usable host addresses, which satisfies the requirement for up to 128 hosts. More importantly, pairing two contiguous /24s creates a clean
/23 summary per branch. For example, 10.0.0.0/24 for data and 10.0.1.0/24 for voice summarize as 10.0.0.0
/23; the next branch can use 10.0.2.0/24 and 10.0.3.0/24 summarized as 10.0.2.0/23. This pattern supports aggregation and keeps the security team's identification simple because voice prefixes can consistently use the odd-numbered third octet. Option C uses /25 prefixes, but /25 provides only 126 usable addresses, which fails a strict requirement for up to 128 hosts if the subnet and broadcast addresses are excluded. Separate
172.16 ranges reduce per-site summarization clarity. Reference topics: RFC 1918 addressing, VLSM, route summarization, branch addressing design, data and voice prefix allocation.
37. Frage 
Refer to the exhibit. An architect must design a solution to connect the network behind R3 with the EIGRP network. Which mechanism should be included to avoid routing loops?
Antwort: C
Begründung:
Route tags are the correct loop-prevention mechanism when connecting another routing domain or redistributed network behind R3 into an EIGRP network. Redistribution can create route feedback: a route learned from one domain is redistributed into another, then later redistributed back into the original domain as if it were new information. That can produce routing loops or suboptimal path selection, especially in multipoint redistribution designs. Cisco route-map based redistribution commonly uses route tags to mark the origin of redistributed routes. Other redistribution points can then match those tags and prevent the same routes from being reintroduced into the source domain. Split horizon prevents advertisements back out the interface on which a route was learned, but it is not sufficient for multipoint redistribution loop prevention.
Summarization reduces route detail and query scope but does not identify route origin. The OSPF down bit is used in MPLS VPN/OSPF PE-CE scenarios, not general EIGRP redistribution. Therefore, the design should use route tags. Reference topics: EIGRP redistribution, route tagging, routing-loop prevention, route maps, redistribution policy.
38. Frage 
Refer to the exhibit An engineer with an employee ID: 1234 56:789 must design a WoL deployment for a client, and the design must ensure that the Windows PCs are responsive to the WoL magic packets with no delays when the server-side initiates the instruction Which action must the engineer choose?
Antwort: D
Begründung:
Spanning-tree PortFast must be enabled on interfaces where Wake-on-LAN clients reside so the PCs become reachable immediately when they power on. WoL depends on a sleeping endpoint receiving a magic packet, and once the device wakes, it must be able to send and receive traffic without waiting through traditional STP listening and learning states. Cisco campus designs commonly enable PortFast on access ports connected to end hosts so those ports transition directly to forwarding. That reduces login, DHCP, and application delays after a host becomes active. The NIC and system firmware must support WoL, but the option stating that WoL should be disabled in BIOS is technically wrong. IP directed broadcast and UDP forwarding are relevant when WoL packets must cross routed boundaries, but the answer options here focus on a single action to prevent client-side delay. Disabling directed broadcast or forward protocol would work against remote WoL operation. Reference topics: Wake-on-LAN, PortFast, access-layer design, STP edge ports, client startup convergence.
39. Frage
An engineer must design a VPN solution for a company that has multiple branches connecting to a main office. What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)
Antwort: B,C
Begründung:
DMVPN is preferred over individually configured point-to-point IPsec tunnels when a company has many branches because it scales the overlay more efficiently. A traditional IPsec tunnel design requires manual or template-based tunnel definitions for every required site-to-site relationship. As branches increase, tunnel count, configuration complexity, and operational overhead grow quickly. Cisco DMVPN combines multipoint GRE, NHRP, and IPsec so spokes can register with the hub and dynamically discover next-hop information for other spokes. This supports a hub-and-spoke control model while allowing dynamic spoke-to-spoke data tunnels when branch-to-branch traffic is required. That is why greater scalability and dynamic spoke-to-spoke tunnel creation are the two design advantages. AES-256 encryption is not unique to DMVPN because normal IPsec can also use strong encryption. Anycast gateway is unrelated to DMVPN WAN overlay design. Lower traffic overhead is not the best answer because DMVPN adds mGRE, NHRP, and IPsec encapsulation overhead; its advantage is operational scalability and dynamic tunnel establishment.
40. Frage
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