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| Section | Objectives |
|---|---|
| Topic 1: WAN and Edge Connectivity Design | - SD-WAN architecture and design considerations - Traditional WAN and internet edge design |
| Topic 2: Enterprise Campus Network Design | - Campus LAN architecture - Spine-leaf and hierarchical design models |
| Topic 3: Security Design in Enterprise Networks | - Segmentation and access control design - VPN and perimeter security architecture |
| Topic 4: Network Services Design | - Multicast and QoS design considerations - Routing protocols design (OSPF, EIGRP, BGP) |
| Topic 5: Network Automation and Programmability | - API-driven network automation concepts - Controller-based networking design |
| Topic 6: Enterprise Network Design Principles | - Scalability and high availability design - Design methodologies and best practices |
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NEW QUESTION # 257
A company is planning to open two new branches and allocate the 2a01:c30:16:7009::3800/118 IPv6 network for the region. Each branch should have the capacity to accommodate maximum of 200 hosts. Which two networks should the company use? (Choose two.)
Answer: A,B
Explanation:
The branch subnets must each support up to 200 hosts, so /120 is the correct IPv6 prefix length from the available options. A /120 provides 256 IPv6 addresses, which satisfies the 200-host requirement. A /121 provides only 128 addresses, which is not enough. The parent block is 2a01:0c30:0016:7009::3800/118. A
/118 has 10 host bits, so it contains 1024 addresses and spans from ::3800 through ::3bff. The valid /120 boundaries inside that parent are ::3800/120, ::3900/120, ::3a00/120, and ::3b00/120. From the listed choices,
2a01:0c30:0016:7009::3a00/120 and 2a01:0c30:0016:7009::3b00/120 both fall inside the parent allocation and provide enough address capacity. The /121 options are too small, and ::3c00/120 is outside the /118 parent range. This is a straightforward IPv6 prefix-boundary and capacity calculation. Reference topics: IPv6 subnetting, prefix length, address block boundaries, branch address planning.
NEW QUESTION # 258
Refer to the exhibit. An engineer is designing an OSPF network for a client. Requirements dictate that the routers in Area 1 should receive all routes belonging to the network, including EIGRP, except the ones originated in the RIP domain. Which action should the engineer take?
Answer: B
Explanation:
NEW QUESTION # 259
Since installing a cisco TelePresence system, the company is experiencing other application having response issues when the system in use. As a result, the company asked an architect to recommend a QoS solution. The customer is currently using a CBWFQ policy to manage traffic on an internet connection with a speed of 100 Mbps. Which link-capacity limit must the architect choose for strict-priority for the real-time traffic?
Answer: D
Explanation:
The strict-priority queue should be limited to approximately 33 Mbps on a 100 Mbps Internet connection.
Cisco QoS design guidance warns that strict priority traffic must be bounded, because excessive priority traffic can starve other queues and cause poor application performance for non-real-time traffic. For voice and interactive video, priority queuing is appropriate, but the priority class should normally be constrained to about one-third of the link capacity in a converged enterprise design. That makes 33 Mbps the best choice for a 100 Mbps link. A 75 Mbps strict-priority allocation is far too high and would leave inadequate bandwidth for routing, signaling, business data, and default traffic. A 50 Mbps allocation still gives real-time media excessive control of the interface. A 25 Mbps allocation may work in some environments but is not the standard upper-limit design answer for strict priority in this Cisco context. The architect should also classify TelePresence accurately, mark traffic consistently, and police the priority queue to protect the WAN.
Reference topics: LLQ, CBWFQ, strict priority limits, TelePresence QoS, WAN congestion management.
NEW QUESTION # 260
Refer to the exhibit.
Refer to the exhibit. An engineer must design an automatic failover solution. The solution should allow HSRP to detect a WAN 1 failure and initiate an automatic failover, making router R2 the active HSRP router. Which two solutions should the engineer choose? (Choose two.)
Answer: A,E
NEW QUESTION # 261
What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)
Answer: A,E
NEW QUESTION # 262
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