McAfee Secure

Cisco 300-420 Bundle

Exam Code: 300-420

Exam Name Designing Cisco Enterprise Networks (ENSLD)

Certification Provider: Cisco

Corresponding Certification: CCNP Enterprise

Cisco 300-420 Bundle $25.00
300-420 Sample 1 300-420 Sample 2 300-420 Sample 3 300-420 Sample 4 300-420 Sample 5 300-420 Sample 6 300-420 Sample 7 300-420 Sample 8 300-420 Sample 9 300-420 Sample 10

100% Cisco 300-420 Guaranteed Success With Testking Training Materials

Get Real 300-420 Exam Questions & Expert Verified Answers as Experienced on the Real Exam!

  • Questions & Answers

    300-420 Questions & Answers

    416 Questions & Answers

    The ultimate exam preparation tool, Questions & Answers mirrors the actual 300-420 exam while allowing you to hone and measure every aspect of your test-taking ability.

  • 300-420 Video Course

    300-420 Training Course

    75 Video Lectures

    300-420 Video Course is developed by Cisco Professionals to help you pass the 300-420 exam.

    Description

    This course will improve your knowledge and skills required to pass Designing Cisco Enterprise Networks (ENSLD) exam.

Designing Cisco Enterprise Networks (ENSLD) (300-420) Practice Tests

Satisfaction Guaranteed

Money Back Guarantee

Testking provides hassle-free money back guarantee with our products. That is because we have 100% trust in the abilities of our professional and experience product team, and our record is a proof of that.

99.6% PASS RATE
Total Cost: $164.98
Bundle Price: $139.98

Purchase Individually

  • Questions & Answers

    Questions & Answers

    416 Questions

    $124.99
  • 300-420 Video Course

    Training Course

    75 Video Lectures

    $39.99

Cisco 300-420 Practice Test 42

Question 410

The design record describes this issue: A planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. Which technical principle BEST explains the design decision?

  1. SDA virtualization separates routing domains, while identity-based segmentation can further control communication.
  2. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic.
  3. Two-way redistribution can reintroduce routes into their source protocol without policy guards.
  4. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes.

Explanation

Correct Answer

D:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The correct engineering response is: Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic. The observable check is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.

Incorrect Answers

A:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: SDA virtualization separates routing domains, while identity-based segmentation can further control communication. Those technical conditions are not interchangeable.

B:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. Those technical conditions are not interchangeable.

C:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: Two-way redistribution can reintroduce routes into their source protocol without policy guards. Those technical conditions are not interchangeable.

Question 411

After designing a change for the following scenario: A planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. Which acceptance observation BEST establishes the intended result?

  1. Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.
  2. Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.
  3. Traffic tests confirm VN isolation and permit only explicitly authorized intergroup flows.
  4. All devices boot concurrently without power-denial events and the switch retains measurable headroom.

Explanation

Correct Answer

A:

Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes.

Incorrect Answers

B:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.

C:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.

D:

Per-port support does not guarantee the chassis can supply simultaneous power across all endpoints. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.

Question 412

A preventive architecture review covers this situation: A planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Maintain VN and scalable-group access policy matrices with change review.
  2. Include underlay reachability, MTU and failure testing in fabric acceptance criteria.
  3. Document control-plane nodes and data-plane validation separately.
  4. Reassess traffic matrices and failure domains after each new campus onboarding.

Explanation

Correct Answer

B:

Include underlay reachability, MTU and failure testing in fabric acceptance criteria. This control targets the underlying design risk. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The follow-up acceptance check remains: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.

Incorrect Answers

A:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria.

C:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria.

D:

A documented hierarchy can limit topology complexity while preserving critical backup paths. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria.

Question 413

A new campus or WAN review presents this constraint: During a predeployment review for a large research campus, the team discovers this design gap: a planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. An approval gate requires both a measurable acceptance check and a durable prevention control. Which action MOST DIRECTLY meets the stated design requirement?

  1. Use separate virtual networks and appropriate group-based policy instead of merely renaming VLANs.
  2. Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture.
  3. Use routed Layer 3 boundaries and local VLANs unless a justified extension requirement exists.
  4. Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic.

Explanation

Correct Answer

D:

Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic. This action addresses the stated design problem. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A practical confirmation is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

Incorrect Answers

A:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. The actual fault is governed by a different mechanism: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The needed response is: Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic.

B:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The actual fault is governed by a different mechanism: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The needed response is: Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic.

C:

Routing boundaries limit broadcast and spanning-tree failure domains compared with indiscriminate Layer 2 stretch. The actual fault is governed by a different mechanism: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The needed response is: Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic.

Question 414

For this Cisco ENSLD design case: During a predeployment review for a large research campus, the team discovers this design gap: a planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. An approval gate requires both a measurable acceptance check and a durable prevention control. Which technical principle BEST explains the design decision?

  1. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes.
  2. SDA virtualization separates routing domains, while identity-based segmentation can further control communication.
  3. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic.
  4. Ordinary local broadcast frames do not propagate across a Layer 3 boundary without an explicit WoL relay design.

Explanation

Correct Answer

A:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The correct engineering response is: Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic. The observable check is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

Incorrect Answers

B:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: SDA virtualization separates routing domains, while identity-based segmentation can further control communication. Those technical conditions are not interchangeable.

C:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. Those technical conditions are not interchangeable.

D:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The offered choice instead concerns a different principle: Ordinary local broadcast frames do not propagate across a Layer 3 boundary without an explicit WoL relay design. Those technical conditions are not interchangeable.

Question 415

During acceptance testing for this network design: During a predeployment review for a large research campus, the team discovers this design gap: a planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. An approval gate requires both a measurable acceptance check and a durable prevention control. Which acceptance observation BEST establishes the intended result?

  1. Traffic tests confirm VN isolation and permit only explicitly authorized intergroup flows.
  2. Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.
  3. Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.
  4. Tenant prefixes remain isolated while selected shared-service routes appear only where authorized.

Explanation

Correct Answer

B:

Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes.

Incorrect Answers

A:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

C:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

D:

VRFs maintain logically separate routing and forwarding contexts on capable shared devices. In the case being tested, an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The necessary acceptance evidence is: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

Question 416

Operations wants to avoid recurrence of this design flaw: During a predeployment review for a large research campus, the team discovers this design gap: a planned SD-Access campus uses an MPLS-style underlay address plan without considering fabric-node reachability for VXLAN overlay endpoints. An approval gate requires both a measurable acceptance check and a durable prevention control. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Maintain VN and scalable-group access policy matrices with change review.
  2. Document control-plane nodes and data-plane validation separately.
  3. Include underlay reachability, MTU and failure testing in fabric acceptance criteria. Apply the same control to the large research campus rollout checklist.
  4. Pair spanning-tree protections with fiber health monitoring and UDLD where supported.

Explanation

Correct Answer

C:

Include underlay reachability, MTU and failure testing in fabric acceptance criteria. Apply the same control to the large research campus rollout checklist. This control targets the underlying design risk. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The follow-up acceptance check remains: Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults. The large research campus acceptance record also captures this result.

Incorrect Answers

A:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria. Apply the same control to the large research campus rollout checklist.

B:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria. Apply the same control to the large research campus rollout checklist.

D:

Loop Guard helps protect against unidirectional BPDU loss causing unexpected spanning-tree forwarding. The repeat risk here is different: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. A directly relevant preventive control is: Include underlay reachability, MTU and failure testing in fabric acceptance criteria. Apply the same control to the large research campus rollout checklist.

Question 417

A Cisco enterprise designer reviews the following scenario: A new SDA deployment confuses endpoint location exchange with data-plane encapsulation. Which action MOST DIRECTLY meets the stated design requirement?

  1. Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture.
  2. Design a routed IP underlay with full fabric-node reachability and predictable MTU for encapsulated traffic.
  3. Use separate virtual networks and appropriate group-based policy instead of merely renaming VLANs.
  4. Provide an HSRP or VRRP virtual default gateway across independent eligible devices with tested failover.

Explanation

Correct Answer

A:

Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture. This action addresses the stated design problem. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. A practical confirmation is: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

Incorrect Answers

B:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The actual fault is governed by a different mechanism: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The needed response is: Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture.

C:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. The actual fault is governed by a different mechanism: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The needed response is: Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture.

D:

An FHRP keeps a stable virtual next-hop address while redundant gateways assume active forwarding roles. The actual fault is governed by a different mechanism: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The needed response is: Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture.

Question 418

The network architecture board discusses the following: A new SDA deployment confuses endpoint location exchange with data-plane encapsulation. Which technical principle BEST explains the design decision?

  1. SDA virtualization separates routing domains, while identity-based segmentation can further control communication.
  2. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic.
  3. An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes.
  4. The fabric control plane tracks endpoint identity or location to guide overlay forwarding.

Explanation

Correct Answer

B:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The correct engineering response is: Assign LISP control-plane responsibilities separately from VXLAN data-plane forwarding in the architecture. The observable check is: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

Incorrect Answers

A:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The offered choice instead concerns a different principle: SDA virtualization separates routing domains, while identity-based segmentation can further control communication. Those technical conditions are not interchangeable.

C:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The offered choice instead concerns a different principle: an SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. Those technical conditions are not interchangeable.

D:

Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The offered choice instead concerns a different principle: the fabric control plane tracks endpoint identity or location to guide overlay forwarding. Those technical conditions are not interchangeable.

Question 419

The infrastructure team must validate this situation: A new SDA deployment confuses endpoint location exchange with data-plane encapsulation. Which acceptance observation BEST establishes the intended result?

  1. Fabric edge and border nodes resolve underlay paths and VXLAN test frames traverse without fragmentation faults.
  2. Traffic tests confirm VN isolation and permit only explicitly authorized intergroup flows.
  3. Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.
  4. A local Layer 2 fault does not propagate across the site interconnect and routed applications remain reachable.

Explanation

Correct Answer

C:

Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic.

Incorrect Answers

A:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. In the case being tested, Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The necessary acceptance evidence is: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

B:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. In the case being tested, Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The necessary acceptance evidence is: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

D:

Routing boundaries limit broadcast and spanning-tree failure domains compared with indiscriminate Layer 2 stretch. In the case being tested, Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The necessary acceptance evidence is: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

Question 420

A post-incident design review discusses the following: A new SDA deployment confuses endpoint location exchange with data-plane encapsulation. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Include underlay reachability, MTU and failure testing in fabric acceptance criteria.
  2. Maintain VN and scalable-group access policy matrices with change review.
  3. Pair spanning-tree protections with fiber health monitoring and UDLD where supported.
  4. Document control-plane nodes and data-plane validation separately.

Explanation

Correct Answer

D:

Document control-plane nodes and data-plane validation separately. This control targets the underlying design risk. Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. The follow-up acceptance check remains: Endpoint registration and resolution succeed through the control plane while data packets use the expected VXLAN path.

Incorrect Answers

A:

An SD-Access overlay depends on a stable IP underlay transporting encapsulated packets between fabric nodes. The repeat risk here is different: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. A directly relevant preventive control is: Document control-plane nodes and data-plane validation separately.

B:

SDA virtualization separates routing domains, while identity-based segmentation can further control communication. The repeat risk here is different: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. A directly relevant preventive control is: Document control-plane nodes and data-plane validation separately.

C:

Loop Guard helps protect against unidirectional BPDU loss causing unexpected spanning-tree forwarding. The repeat risk here is different: Cisco SD-Access commonly uses LISP mapping/control functions and VXLAN encapsulation to transport overlay traffic. A directly relevant preventive control is: Document control-plane nodes and data-plane validation separately.