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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Services | 10% | - Design end-to-end QoS policy - Design network management |
| Topic 2: WAN for Enterprise Networks | 20% | - Design SD-WAN solution - Design QoS for WAN - Design WAN connectivity |
| Topic 3: Enterprise Campus Security | 20% | - Design network access control - Design network security |
| Topic 4: Advanced Addressing and Routing Solutions | 25% | - Determine IPv6 migration strategy - Create structured addressing designs - Create stable, secure, and scalable routing designs for Layer 3 |
| 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 # 403
Refer to the exhibit.
An architect is designing a routing solution for a company. The new design will add a circuit routers C and D to protect against loss of connectivity to 10.0.4.0/24 during a link failure between routers B and D. Which solution must the architect choose?
Answer: C
Explanation:
The EIGRP stub connected option is appropriate when the new circuit is intended to protect reachability to a connected subnet without turning the router into a broad transit point. EIGRP stub routing is used to limit the routes a router advertises to its neighbors and to constrain EIGRP query scope. A stub router can advertise connected routes, summary routes, redistributed routes, or combinations depending on the configured stub option. In this scenario, the new C-to-D circuit protects connectivity to 10.0.4.0/24 during a failure between B and D. Advertising the connected network through the stub behavior gives upstream routers a valid alternate route while still preventing unnecessary transit advertisements. Stub redistributed would be used for routes learned from another routing process, not for directly connected networks. Stub receive-only would prevent the router from advertising any routes, which would not protect reachability. Stub leak-map is used for controlled exceptions and is unnecessary if the required route is a connected subnet. Reference topics: EIGRP stub routing, connected route advertisement, query boundary design, DUAL stability.
NEW QUESTION # 404
What is the role of a control-plane node in a Cisco SD-Access architecture?
Answer: D
Explanation:
The control-plane node in Cisco SD-Access acts as the map system that manages endpoint-to-device relationships. Cisco SD-Access documentation describes control-plane nodes as maintaining the host database that maps endpoint identifiers to the fabric edge devices where those endpoints are attached. This mapping function is based on LISP control-plane behavior. When an endpoint appears on an edge node, the edge registers the endpoint information with the control plane. When another fabric device needs to send traffic to that endpoint, it queries the control-plane node to resolve the endpoint location. A fabric edge node is the device that connects wired endpoints to the fabric, so option A describes an edge role. Wireless endpoints may attach through fabric AP and fabric WLC integration, but that is not the control-plane node's role.
External Layer 3 networks are connected through border nodes, not through the control-plane node.
Therefore, the correct role is endpoint-to-device mapping. Accurate control-plane design is essential for fabric scale, endpoint mobility, and fast location resolution.
NEW QUESTION # 405
Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?
Answer: B
NEW QUESTION # 406
Which design consideration should be observed when EIGRP is configured on Data Center switches?
Answer: D
Explanation:
Section: Advanced Addressing and Routing Solutions
NEW QUESTION # 407
A large company is building a new branch office, and the network architect already determined that the branch office will need a /24 network. The architect assigned a network engineer to clean the rest of the addressing plan. The engineer's solution must support:
Answer: B
Explanation:
The correct subnet choice is 192.168.32.0/27. The design must support at least five subnets and at least 25 usable hosts per subnet from a /24 allocation. A /27 leaves five host bits, giving 32 total addresses and 30 usable host addresses after excluding the subnet and broadcast addresses. It also borrows three bits from the
/24 host field, creating eight equal /27 subnets, which satisfies the requirement for at least five departmental networks. A /26 provides 62 usable hosts, but only four subnets inside a /24, so it fails the subnet-count requirement. A /25 provides only two subnets. A /28 provides enough subnets but only 14 usable host addresses, which fails the host requirement. Cisco subnetting guidance uses exactly this host-bit and prefix- length calculation model when selecting VLSM blocks. Reference topics: IPv4 subnetting, CIDR prefix length, host-bit calculation, VLSM design, private IPv4 addressing.
NEW QUESTION # 408
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