300-420 Exam Preparation Material | Designing Cisco Enterprise Networks (ENSLD)

Prepare for the 300-420 with reliable study materials, practice questions, and key exam insights.

Prepare for the 300-420 Designing Cisco Enterprise Networks (ENSLD) exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

A company needs to increase access port capacity on one floor of a building. They want to leverage the existing catalyst access switch. There is no problem with uplink bandwidth capacity. However, no additional uplinks can be added because no ports are available on the distribution switches.
Which solution must the company choose to provide additional access ports?

A. VDC
B. VSS
C. Etherchannel
D. Stackwise

Question#2

Which method will filter routes between EIGRP neighbors within the same autonomous system?

A. distribute-list
B. policy-based routing
C. leak-map
D. route tagging

Question#3

Refer to the exhibit .



An architect is designing an ISIS solution with these requirements:
The backbone area will grow to 50 routers in the next 12 months. Routers A1 and A2 must avoid suboptimal routing.
Summarization and route-leaking should be allowed in areas 49.002 and 49.003.
Which solution must the architect select?

A. area 49.000 L1, area 49.001 L2, area 49.002 L2, and area 49.003 L2
B. area 49.000 L1, area 49.001 L1, area 49.002 L2, and area 49.003 L2
C. area 49.000 L2. area 49.001 L1, area 49.002 L1, and area 49.003 L1
D. area 49.000 L2. area 49.001 L2, area 49.002 L1, and area 49.003 L1

Question#4

Refer to the exhibit.



A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface g¡g0/0.
Which solution must the architect include in the design?

A. Advertise a lower MED value toward the less preferred service provider.
B. Prepend additional AS on the AS path toward the preferred service provider.
C. Break aggregated routes into longer prefixes and advertise to the preferred service provider.
D. Set a higher local preference to the preferred service provider path.

Question#5

Refer to the exhibit.



An engineer with an employee ID: 1234 56:789 must design a WoL deployment for a client, and the design must ensure that the Windows PCs are responsive to the WoL magic packets with no delays when the server-side initiates the instruction.
Which action must the engineer choose?

A. Spanning-tree PortFast must be enabled on all interfaces where clients reside.
B. WoL must be enabled on the networking card and disabled in the Windows PCs BIO
C. IP-directed broadcast must be disabled on all interfaces where clients reside.
D. IP forward protocol must be disabled on all interfaces where clients reside

Exam Code: 300-420
Q & A: 379 Q&As         Updated:  Oct 27,2026

 

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What This 300-420 Study Resource Helps You Do

Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current 300-420 exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

How to Use This 300-420 Preparation Material

Review the Exam Scope

Start by reviewing the topics covered by the 300-420 exam. Compare them with the official exam objectives to understand the required technologies, operational tasks, and practical skills, then identify the areas that deserve the most attention.

Practice Independently

Complete a focused set of practice questions for each topic. On your first attempt, avoid referring to notes, answers, or other study resources so that you can evaluate your current understanding more accurately.

Study the Explanations

Review the answers and explanations after completing each practice session. Understand why the correct option is appropriate for the given scenario and why the other options may be incorrect or less suitable.

Close Knowledge Gaps

Keep track of incorrect answers, unfamiliar concepts, and weaker knowledge areas. Review these topics using official documentation and practical experience, then answer the related questions again to reinforce your understanding and monitor your progress.

Independent 300-420 Preparation Resource

CertQueen independently develops its certification study materials for educational purposes. The practice questions are not copied from, recalled from, or presented as live or official exam questions.

CertQueen is not affiliated with, endorsed by, sponsored by, or authorized by any certification provider. Certification names, exam codes, product names, and related trademarks are the property of their respective owners and are referenced only for identification and educational purposes.

Exam Code: 300-420
Q & A: 379 Q&As
Updated:  Oct 27,2026

 

 Access Complete 300-420 Preparation Material