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Question 140
A network engineer schedules a routing change without security approval or notifying help desk. What process is missing?
- Configuration backup and restore
- Incremental rollout and pilot
- Change approval and notification
- Baseline network telemetry
Explanation
Correct Answer
C:Change governance coordinates authorization and communication. Document authorization, stakeholders, communication and responsible operators.
Incorrect Answers
A:Validated backups provide the settings and recovery mechanism before risky changes. But this does not address the case requirement to align stakeholders before risky work.
B:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to align stakeholders before risky work.
D:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to align stakeholders before risky work.
Question 141
The switch deployment works but on-call staff lack diagrams, backup paths and escalation steps. Which artifact is required?
- Postchange handover and runbook
- Incremental rollout and pilot
- Baseline network telemetry
- Maintenance window and rollback triggers
Explanation
Correct Answer
A:A runbook supports sustainable incident response. Provide topology, contacts, expected state and procedures for operations.
Incorrect Answers
B:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to operate and recover the deployed environment.
C:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to operate and recover the deployed environment.
D:An approved window and explicit thresholds define when to revert a failed deployment. But this does not address the case requirement to operate and recover the deployed environment.
Question 142
The team stores backups but never tests restoring them to a replacement switch. Which recovery risk remains?
- Maintenance window and rollback triggers
- Baseline network telemetry
- Configuration backup and restore
- Incremental rollout and pilot
Explanation
Correct Answer
C:Backup usability must be proven through a restore exercise. Validated backups provide the settings and recovery mechanism before risky changes.
Incorrect Answers
A:An approved window and explicit thresholds define when to revert a failed deployment. But this does not address the case requirement to recover settings from a validated backup.
B:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to recover settings from a validated backup.
D:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to recover settings from a validated backup.
Question 143
A mass firmware rollout fails at five sites simultaneously. Which design would have contained the blast radius?
- Configuration backup and restore
- Postchange handover and runbook
- Incremental rollout and pilot
- Baseline network telemetry
Explanation
Correct Answer
C:Staged waves and pilot testing prevent broad first exposure. Deploy first to a representative small segment before extending to all sites.
Incorrect Answers
A:Validated backups provide the settings and recovery mechanism before risky changes. But this does not address the case requirement to release changes progressively with checkpoints.
B:Provide topology, contacts, expected state and procedures for operations. But this does not address the case requirement to release changes progressively with checkpoints.
D:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to release changes progressively with checkpoints.
Question 144
A change still has high packet loss at the agreed validation deadline. What plan element should determine next action?
- Baseline network telemetry
- Maintenance window and rollback triggers
- Incremental rollout and pilot
- Change approval and notification
Explanation
Correct Answer
B:Preapproved rollback criteria remove guesswork. An approved window and explicit thresholds define when to revert a failed deployment.
Incorrect Answers
A:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to revert when defined service thresholds fail.
C:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to revert when defined service thresholds fail.
D:Document authorization, stakeholders, communication and responsible operators. But this does not address the case requirement to revert when defined service thresholds fail.
Question 145
A branch should keep local printers accessible when its Internet WAN link is down. Which architecture feature helps?
- Redundant critical-site interconnects
- Site-local default gateway
- Consistent site segmentation design
- Documented WAN failure dependence
Explanation
Correct Answer
B:A site-local gateway keeps local routing from depending on the WAN. Local routing can keep permitted intra-site traffic available if remote WAN links fail.
Incorrect Answers
A:Diverse paths and upstream termination reduce a single WAN or transport failure risk. But this does not address the case requirement to maintain permitted local connectivity without a remote gateway.
C:Reusable VLAN and policy patterns reduce cross-site configuration inconsistency. But this does not address the case requirement to maintain permitted local connectivity without a remote gateway.
D:Identify which applications or services require remote connectivity and their alternate paths. But this does not address the case requirement to maintain permitted local connectivity without a remote gateway.
Question 146
Executives say everything must work during WAN outages but don't identify cloud-authenticated apps. What should be analyzed?
- Consistent site segmentation design
- Routing protocol boundary design
- Documented WAN failure dependence
- Site-local default gateway
Explanation
Correct Answer
C:WAN dependency mapping separates local and remote services. Identify which applications or services require remote connectivity and their alternate paths.
Incorrect Answers
A:Reusable VLAN and policy patterns reduce cross-site configuration inconsistency. But this does not address the case requirement to identify functions lost when remote connectivity is unavailable.
B:Clearly define where internal and WAN routing exchange prefixes and how to filter them. But this does not address the case requirement to identify functions lost when remote connectivity is unavailable.
D:Local routing can keep permitted intra-site traffic available if remote WAN links fail. But this does not address the case requirement to identify functions lost when remote connectivity is unavailable.
Question 147
Two campuses exchange routes over an MPLS edge and accidentally leak internal test prefixes. What planning boundary needs redesign?
- Service dependency map
- Documented WAN failure dependence
- Routing protocol boundary design
- Site-local default gateway
Explanation
Correct Answer
C:Routing exchange policy controls permitted advertisements. Clearly define where internal and WAN routing exchange prefixes and how to filter them.
Incorrect Answers
A:Map DHCP, DNS, AAA and management dependencies to site failover behavior. But this does not address the case requirement to advertise only authorized destinations across a WAN boundary.
B:Identify which applications or services require remote connectivity and their alternate paths. But this does not address the case requirement to advertise only authorized destinations across a WAN boundary.
D:Local routing can keep permitted intra-site traffic available if remote WAN links fail. But this does not address the case requirement to advertise only authorized destinations across a WAN boundary.
Question 148
A retailer wants uniform branch role segmentation without hand-writing a different policy per store. What pattern helps?
- Documented WAN failure dependence
- Consistent site segmentation design
- Site-local default gateway
- Service dependency map
Explanation
Correct Answer
B:Reusable site policy templates support predictable deployments. Reusable VLAN and policy patterns reduce cross-site configuration inconsistency.
Incorrect Answers
A:Identify which applications or services require remote connectivity and their alternate paths. But this does not address the case requirement to standardize segmentation across repeatable sites.
C:Local routing can keep permitted intra-site traffic available if remote WAN links fail. But this does not address the case requirement to standardize segmentation across repeatable sites.
D:Map DHCP, DNS, AAA and management dependencies to site failover behavior. But this does not address the case requirement to standardize segmentation across repeatable sites.
Question 149
The headquarters and backup facility share one leased line for critical communications. What improvement reduces single-link risk?
- Documented WAN failure dependence
- Routing protocol boundary design
- Consistent site segmentation design
- Redundant critical-site interconnects
Explanation
Correct Answer
D:Diverse intersite transports improve availability. Diverse paths and upstream termination reduce a single WAN or transport failure risk.
Incorrect Answers
A:Identify which applications or services require remote connectivity and their alternate paths. But this does not address the case requirement to survive a single circuit or carrier fault.
B:Clearly define where internal and WAN routing exchange prefixes and how to filter them. But this does not address the case requirement to survive a single circuit or carrier fault.
C:Reusable VLAN and policy patterns reduce cross-site configuration inconsistency. But this does not address the case requirement to survive a single circuit or carrier fault.
Question 150
RADIUS and DNS are centralized with no branch cache; a WAN cut could prevent new logons. Which planning artifact exposes this?
- Documented WAN failure dependence
- Routing protocol boundary design
- Service dependency map
- Redundant critical-site interconnects
Explanation
Correct Answer
C:Service dependency mapping reveals identity and name-service reliance. Map DHCP, DNS, AAA and management dependencies to site failover behavior.
Incorrect Answers
A:Identify which applications or services require remote connectivity and their alternate paths. But this does not address the case requirement to predict management and client impact of WAN failure.
B:Clearly define where internal and WAN routing exchange prefixes and how to filter them. But this does not address the case requirement to predict management and client impact of WAN failure.
D:Diverse paths and upstream termination reduce a single WAN or transport failure risk. But this does not address the case requirement to predict management and client impact of WAN failure.
HPE Network Switching Professional (HPE7-A08) Practice Tests