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| Section | Objectives |
|---|---|
| Enterprise Campus Network Design | - Spine-leaf and hierarchical design models - Campus LAN architecture |
| Network Automation and Programmability | - Controller-based networking design - API-driven network automation concepts |
| Enterprise Network Design Principles | - Scalability and high availability design - Design methodologies and best practices |
| Network Services Design | - Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP) |
| WAN and Edge Connectivity Design | - Traditional WAN and internet edge design - SD-WAN architecture and design considerations |
| Security Design in Enterprise Networks | - VPN and perimeter security architecture - Segmentation and access control design |
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NEW QUESTION # 79
An engineer must design a scalable QoS architecture that allows the separation of the traffic into classes on predefined business requirements. The design must also utilize the differentiated services code points as the QoS priority descriptor value and support at least 10 levels of classification. Which QoS technology should the engineer include in the design?
Answer: D
NEW QUESTION # 80
A customer plans to deploy WoL in the enterprise with these high-level design requirements:
DHCP services must be available.
Clients BIOS settings must be set for WoL.
Clients get IP addresses once online.
Spanning-tree PortFast is enabled on the Layer 2 switches.
Which two solutions must the customer select to have a successful deployment? (Choose two.)
Answer: B,E
Explanation:
Wake-on-LAN across routed boundaries requires directed broadcast handling toward the client subnet and helper behavior to forward the magic packet correctly. A sleeping host normally does not maintain a normal IP session, so the WoL magic packet is commonly sent as a directed broadcast to the destination subnet. Cisco designs therefore enable IP directed broadcast on the routed interface or SVI for the client subnet where the sleeping endpoints reside, while controlling the feature carefully to avoid abuse. The ip forward-protocol behavior is also relevant because routers must forward the required UDP broadcast traffic rather than dropping it at the Layer 3 boundary. In addition, an IP helper address toward the WoL server or relay path may be needed on client-facing interfaces so the magic packet can be delivered from the management or server subnet to the client subnet. PortFast helps endpoints become reachable quickly at Layer 2, but it does not replace routed broadcast forwarding. Reference topics: Wake-on-LAN, directed broadcast, ip helper- address, UDP forwarding, PortFast, campus services.
NEW QUESTION # 81
An engineer working for a service provider with an employee ID: 4604:68:004 prepared several designs for a traditional campus network. The design must allow the deployment of the same VLAN to any switch at the access layer and must support:
- fast convergence
- high availability
- resilience
Which design must be selected?
Answer: D
NEW QUESTION # 82
What is the easiest way to enable SD-Access for all your remote sites after you have your campus SD-Access fabric up and running?
Answer: C
NEW QUESTION # 83
Refer to the exhibit.
A customer is running HSRP on the core routers. Over time the company has grown and requires more network capacity. In the current environment, some of the downstream interfaces are almost fully utilized, but others are not. Which solution improves the situation?
Answer: A
Explanation:
Making R2 active for half of the VLANs improves utilization by distributing first-hop gateway forwarding across both core routers. HSRP provides default-gateway redundancy by making one router active and another standby for a VLAN. If the same router is active for every VLAN, traffic from all downstream VLANs is forwarded through the same core path, which can leave some interfaces congested while parallel links on the standby side remain underused. Cisco campus designs commonly tune HSRP priorities per VLAN and align the active HSRP gateway with the spanning-tree root for that VLAN. This creates a deterministic load-sharing model while preserving gateway redundancy. Adding more interfaces may help capacity, but the question states that some downstream interfaces are already underutilized, so the issue is load distribution rather than absolute port count. A port channel is useful only when the topology supports bundling the specific links and does not by itself move gateway activity. RSTP improves convergence, not HSRP forwarding balance. Reference topics: HSRP load sharing, per-VLAN gateway placement, STP root alignment, campus capacity design.
NEW QUESTION # 84
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