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| Section | Objectives |
|---|---|
| Network Automation and Programmability | - API-driven network automation concepts - Controller-based networking design |
| Security Design in Enterprise Networks | - VPN and perimeter security architecture - Segmentation and access control design |
| Enterprise Network Design Principles | - Design methodologies and best practices - Scalability and high availability design |
| Enterprise Campus Network Design | - Campus LAN architecture - Spine-leaf and hierarchical design models |
| WAN and Edge Connectivity Design | - SD-WAN architecture and design considerations - Traditional WAN and internet edge design |
| Network Services Design | - Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP) |
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NEW QUESTION # 59
Refer to the exhibit.
A network engineer must design a multicast solution based on:
* Many-to-many communications between the users and sources
* Support of up to 50 multicast sources
* Users that must register for steams
Which multicast solution must the engineer select?
Answer: D
NEW QUESTION # 60
An engineer must design an addressing plan for a small business using a single /24 network. Each department must have its own subnet. Drag and drop the subnets from the left onto the departments requirements that they fulfill on the right. Not all options are used.
Answer:
Explanation:
Explanation:
Human Resources: 10.1.1.112/29; Facilities: 10.1.1.64/27; Engineering: 10.1.1.0/26; Finance: 10.1.1.96
/28.
The addressing plan must use VLSM and assign the smallest subnet that satisfies each department's host requirement without overlapping inside the single /24 block. Engineering needs 32 hosts, so a /27 is not enough because it provides only 30 usable addresses. The smallest listed subnet that satisfies Engineering is
10.1.1.0/26, which provides 62 usable addresses. Facilities needs 18 hosts, so a /27 is appropriate; 10.1.1.64
/27 provides 30 usable addresses. Finance needs 12 hosts, so a /28 is sufficient because it provides 14 usable addresses; the matching listed subnet is 10.1.1.96/28. Human Resources needs 5 hosts, so a /29 is sufficient because it provides 6 usable addresses; the matching listed subnet is 10.1.1.112/29. The unused options either overlap with selected ranges, provide too few hosts for the department, or waste address space unnecessarily.
Cisco addressing design favors hierarchical, nonoverlapping, right-sized prefixes so the plan remains scalable and easy to summarize where possible.
NEW QUESTION # 61 
Refer to the exhibit. Where must an architect plan for route summarization for the topology?
Answer: D
NEW QUESTION # 62
An engineer must design a large Layer 2 domain that contains hundreds of switches and VLANs. The engineer ' s primary goals are to:
*Efficiently utilize the bandwidth of all links
*Avoid Layer 2 loops
*Cause minimal impact on switch CPU and memory
Which technology should the engineer include in the design?
Answer: D
Explanation:
Multiple Spanning Tree is the correct technology for a large Layer 2 domain with hundreds of switches and VLANs when the goals are efficient link use, loop prevention, and low CPU and memory impact. MST maps multiple VLANs into a smaller number of spanning-tree instances, allowing the designer to load-balance groups of VLANs across alternate paths without running a separate STP instance for every VLAN. Cisco Rapid PVST+ improves convergence compared with classic STP, but it maintains a separate instance per VLAN, which becomes costly at scale. PVST+ has similar per-VLAN scaling concerns and slower convergence behavior than rapid variants. Plain RSTP improves convergence but does not provide the same VLAN-to-instance mapping flexibility for hundreds of VLANs. MST is standards-based and particularly useful in multivendor environments where VLAN grouping and predictable root placement are required. The design should define MST regions consistently, map VLANs deliberately to instances, place roots near the Layer 3 gateway, and keep the number of instances small enough to protect supervisor CPU and memory.
Reference topics: MST, RSTP, Rapid PVST+, VLAN-to-instance mapping, Layer 2 scalability.
NEW QUESTION # 63
What statement is true regarding the current time in Enterprise Networking history?
Answer: C
NEW QUESTION # 64
......
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