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Exam Code: 300-420

Exam Name Designing Cisco Enterprise Networks (ENSLD)

Certification Provider: Cisco

Corresponding Certification: CCNP Enterprise

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Cisco 300-420 Practice Test 88

Question 870

In a technical design review: A critical data center needs predictable private cloud connectivity and wants to avoid relying solely on the public Internet. Which technical principle BEST explains the design decision?

  1. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it.
  2. A private connectivity circuit provides path separation but is not automatically end-to-end encryption.
  3. Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design.
  4. Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls.

Explanation

Correct Answer

C:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The correct engineering response is: Evaluate an appropriate provider private direct connection with resilient physical access. The observable check is: Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

Incorrect Answers

A:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The offered choice instead concerns a different principle: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. Those technical conditions are not interchangeable.

B:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The offered choice instead concerns a different principle: a private connectivity circuit provides path separation but is not automatically end-to-end encryption. Those technical conditions are not interchangeable.

D:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The offered choice instead concerns a different principle: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. Those technical conditions are not interchangeable.

Question 871

An engineering reviewer needs objective proof for the following: A critical data center needs predictable private cloud connectivity and wants to avoid relying solely on the public Internet. Which acceptance observation BEST establishes the intended result?

  1. Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.
  2. Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.
  3. Sensitive cloud flows are encrypted end-to-end and routing still uses the intended private circuit.
  4. Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

Explanation

Correct Answer

D:

Cloud service prefixes route through the contracted private connection and remain reachable after one access failure. Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design.

Incorrect Answers

A:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. In the case being tested, Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The necessary acceptance evidence is: Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

B:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. In the case being tested, Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The necessary acceptance evidence is: Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

C:

A private connectivity circuit provides path separation but is not automatically end-to-end encryption. In the case being tested, Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The necessary acceptance evidence is: Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

Question 872

The change advisory board sees a repeat risk in this case: A critical data center needs predictable private cloud connectivity and wants to avoid relying solely on the public Internet. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Plan redundant circuits and validate provider handoff and BGP failover behavior.
  2. Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.
  3. Separate confidentiality requirements from private-connectivity procurement checklists.
  4. Audit route leaks and cloud egress paths before onboarding new sites.

Explanation

Correct Answer

A:

Plan redundant circuits and validate provider handoff and BGP failover behavior. This control targets the underlying design risk. Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The follow-up acceptance check remains: Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.

Incorrect Answers

B:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The repeat risk here is different: Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. A directly relevant preventive control is: Plan redundant circuits and validate provider handoff and BGP failover behavior.

C:

A private connectivity circuit provides path separation but is not automatically end-to-end encryption. The repeat risk here is different: Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. A directly relevant preventive control is: Plan redundant circuits and validate provider handoff and BGP failover behavior.

D:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The repeat risk here is different: Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. A directly relevant preventive control is: Plan redundant circuits and validate provider handoff and BGP failover behavior.

Question 873

A design team must resolve this enterprise network problem: A company with MPLS-connected branches wants centralized approved access to cloud workloads without sending every site directly onto the Internet. Which action MOST DIRECTLY meets the stated design requirement?

  1. Evaluate an appropriate provider private direct connection with resilient physical access.
  2. Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows.
  3. Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls.
  4. Discover and validate implemented model revisions and capabilities before composing the payload.

Explanation

Correct Answer

C:

Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls. This action addresses the stated design problem. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. A practical confirmation is: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

Incorrect Answers

A:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The actual fault is governed by a different mechanism: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The needed response is: Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls.

B:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The actual fault is governed by a different mechanism: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The needed response is: Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls.

D:

A YANG schema revision or deviation can change accepted paths and constraints even when the device family is unchanged. The actual fault is governed by a different mechanism: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The needed response is: Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls.

Question 874

The design record describes this issue: A company with MPLS-connected branches wants centralized approved access to cloud workloads without sending every site directly onto the Internet. Which technical principle BEST explains the design decision?

  1. Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design.
  2. A private connectivity circuit provides path separation but is not automatically end-to-end encryption.
  3. Periodic publication delivers time-indexed samples for rate and trend calculations independently of event changes.
  4. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it.

Explanation

Correct Answer

D:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The correct engineering response is: Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls. The observable check is: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

Incorrect Answers

A:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The offered choice instead concerns a different principle: Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. Those technical conditions are not interchangeable.

B:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The offered choice instead concerns a different principle: a private connectivity circuit provides path separation but is not automatically end-to-end encryption. Those technical conditions are not interchangeable.

C:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The offered choice instead concerns a different principle: Periodic publication delivers time-indexed samples for rate and trend calculations independently of event changes. Those technical conditions are not interchangeable.

Question 875

After designing a change for the following scenario: A company with MPLS-connected branches wants centralized approved access to cloud workloads without sending every site directly onto the Internet. Which acceptance observation BEST establishes the intended result?

  1. Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.
  2. Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.
  3. Cloud service prefixes route through the contracted private connection and remain reachable after one access failure.
  4. Collector load and data freshness meet targets at a representative device count.

Explanation

Correct Answer

A:

Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it.

Incorrect Answers

B:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. In the case being tested, MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The necessary acceptance evidence is: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

C:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. In the case being tested, MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The necessary acceptance evidence is: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

D:

Streaming telemetry can reduce repetitive per-device polling overhead and provide structured timely updates. In the case being tested, MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The necessary acceptance evidence is: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

Question 876

A preventive architecture review covers this situation: A company with MPLS-connected branches wants centralized approved access to cloud workloads without sending every site directly onto the Internet. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.
  2. Audit route leaks and cloud egress paths before onboarding new sites.
  3. Separate confidentiality requirements from private-connectivity procurement checklists.
  4. Document SaaS identity, data handling and provider recovery responsibilities.

Explanation

Correct Answer

B:

Audit route leaks and cloud egress paths before onboarding new sites. This control targets the underlying design risk. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The follow-up acceptance check remains: Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.

Incorrect Answers

A:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The repeat risk here is different: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. A directly relevant preventive control is: Audit route leaks and cloud egress paths before onboarding new sites.

C:

A private connectivity circuit provides path separation but is not automatically end-to-end encryption. The repeat risk here is different: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. A directly relevant preventive control is: Audit route leaks and cloud egress paths before onboarding new sites.

D:

SaaS normally delivers provider-managed finished applications to consumers instead of raw infrastructure building blocks. The repeat risk here is different: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. A directly relevant preventive control is: Audit route leaks and cloud egress paths before onboarding new sites.

Question 877

A new campus or WAN review presents this constraint: Several SaaS applications suffer high latency when all remote-site traffic hairpins through headquarters. Which action MOST DIRECTLY meets the stated design requirement?

  1. Evaluate an appropriate provider private direct connection with resilient physical access.
  2. Evaluate provider WAN-to-cloud integration with deliberate routing, segmentation and capacity controls.
  3. Design explicit hybrid-cloud connectivity and data-governance boundaries between private and public environments.
  4. Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows.

Explanation

Correct Answer

D:

Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows. This action addresses the stated design problem. Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. A practical confirmation is: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

Incorrect Answers

A:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The actual fault is governed by a different mechanism: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The needed response is: Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows.

B:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The actual fault is governed by a different mechanism: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The needed response is: Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows.

C:

Hybrid cloud connects distinct private and public operating environments while retaining different control and residency responsibilities. The actual fault is governed by a different mechanism: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The needed response is: Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows.

Question 878

For this Cisco ENSLD design case: Several SaaS applications suffer high latency when all remote-site traffic hairpins through headquarters. Which technical principle BEST explains the design decision?

  1. Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls.
  2. Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design.
  3. MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it.
  4. Native models expose device-specific data that may not map exactly to a standards-based OpenConfig schema.

Explanation

Correct Answer

A:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The correct engineering response is: Evaluate a controlled cloud on-ramp or local Internet breakout for supported SaaS flows. The observable check is: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

Incorrect Answers

B:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The offered choice instead concerns a different principle: Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. Those technical conditions are not interchangeable.

C:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The offered choice instead concerns a different principle: MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. Those technical conditions are not interchangeable.

D:

Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The offered choice instead concerns a different principle: Native models expose device-specific data that may not map exactly to a standards-based OpenConfig schema. Those technical conditions are not interchangeable.

Question 879

During acceptance testing for this network design: Several SaaS applications suffer high latency when all remote-site traffic hairpins through headquarters. Which acceptance observation BEST establishes the intended result?

  1. Sensitive cloud flows are encrypted end-to-end and routing still uses the intended private circuit.
  2. Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.
  3. Authorized branch prefixes reach cloud workloads through the approved hub or provider attachment.
  4. The module namespace and revision identify the applicable standards-based schema correctly.

Explanation

Correct Answer

B:

Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency. Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls.

Incorrect Answers

A:

A private connectivity circuit provides path separation but is not automatically end-to-end encryption. In the case being tested, Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The necessary acceptance evidence is: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

C:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. In the case being tested, Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The necessary acceptance evidence is: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

D:

IETF YANG models standardize common semantics independently of a vendor’s native extension models. In the case being tested, Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The necessary acceptance evidence is: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

Question 880

Operations wants to avoid recurrence of this design flaw: Several SaaS applications suffer high latency when all remote-site traffic hairpins through headquarters. Which preventive design control MOST DIRECTLY addresses this specific risk?

  1. Audit route leaks and cloud egress paths before onboarding new sites.
  2. Plan redundant circuits and validate provider handoff and BGP failover behavior.
  3. Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.
  4. Validate endpoint protocol and supported capabilities in integration tests.

Explanation

Correct Answer

C:

Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs. This control targets the underlying design risk. Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. The follow-up acceptance check remains: Selected SaaS traffic uses the intended nearer cloud entry point with measured improved latency.

Incorrect Answers

A:

MPLS or provider WAN integration can extend private routed connectivity toward cloud attachments where the carrier supports it. The repeat risk here is different: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. A directly relevant preventive control is: Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.

B:

Dedicated cloud connectivity can provide a managed private network path, but still requires peering and physical redundancy design. The repeat risk here is different: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. A directly relevant preventive control is: Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.

D:

NETCONF and RESTCONF may access YANG-modeled data but use different transport and operation encodings. The repeat risk here is different: Cloud on-ramp designs can reduce unnecessary backhaul but must preserve security inspection and policy controls. A directly relevant preventive control is: Monitor service destinations, split-tunnel permissions and cloud on-ramp SLAs.