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There are no formal prerequisites for the Cisco CCNP Enterprise but it is recommended that candidates should have at least 3 to 5 years of networking experience. This is because a lot of practical skills are tested during the exams, including 300-420. So, all you need is some underlying networking knowledge so that you have a basic understanding of everything that is being discussed.

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300-420 Exam Simulation: Designing Cisco Enterprise Networks & 300-420 Training Materials

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Cisco 300-420 Certification Exam is a comprehensive test that evaluates the candidates' knowledge and skills in designing Cisco Enterprise Networks. 300-420 exam is part of the Cisco Certified Design Professional (CCDP) certification program and is designed for IT professionals who want to validate their expertise in designing complex enterprise network solutions.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q168-Q173):

NEW QUESTION # 168
A network solution is being designed for a company that connects to multiple Internet service providers.
Which Cisco proprietary BGP path attribute will influence outbound traffic flow?

Answer: C


NEW QUESTION # 169
A company wants to switch from static to dynamic routing. The branches use DMVPN back to the hub using two internet connections. One internet connection speed is 10 Mbps, and the other is 100 Mbps. All locations use Cisco routers; however, the branch routers have limited memory and CPU resources. Which routing protocol and design solution must the company choose for optimal traffic forwarding during peak traffic times?

Answer: B

Explanation:
EIGRP with stub routing and variance is the best fit for Cisco-only DMVPN branches with unequal Internet link speeds and limited branch resources. EIGRP works well over DMVPN because it supports hub-and- spoke designs, unequal-cost load balancing, and simple branch optimization through stub routing. Stub branches limit query propagation and reduce CPU, memory, and bandwidth consumption on small routers.
Variance allows EIGRP to use feasible unequal-cost paths, which is important when one Internet connection is 10 Mbps and the other is 100 Mbps. OSPF can run over DMVPN, but virtual links are not an appropriate branch design and OSPF is less efficient in this specific Cisco-only unequal-bandwidth scenario. IS-IS is not commonly selected for small DMVPN branch overlays. iBGP with route reflectors can scale, but it does not inherently use link utilization and unequal metric behavior as cleanly as EIGRP variance for this requirement.
Reference topics: EIGRP over DMVPN, stub routing, variance, unequal-cost load balancing, branch resource optimization.


NEW QUESTION # 170
Refer to the exhibit. An architect must design an IP addressing scheme for a multisite network connected via a WAN transit. The campus site must accommodate 12,000 devices and the branch sites must accommodate 1,000 devices. Which address scheme optimizes network device resources, contains convergence events to the different blocks of the network, and ensures future growth of the network?

Answer: D


NEW QUESTION # 171
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

Explanation:
DSCP Values allow for > 10 classes and are used in DiffServ to discriminate traffic.


NEW QUESTION # 172
Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)

Answer: A,C

Explanation:
Section: Advanced Addressing and Routing Solutions


NEW QUESTION # 173
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