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Question 130
Operators currently use shared admin passwords over exposed networks. Which workstream is required?
- 802.1X and MAC-auth exception plan
- AAA server and failover topology
- Management-plane hardening
- DHCP snooping and ARP protections
Explanation
Correct Answer
C:Administrative access and transport must be hardened. Protect administrative access with role-based privileges, trusted protocols and management reachability.
Incorrect Answers
A:Use 802.1X where clients support it and narrowly govern devices requiring an alternative. But this does not address the case requirement to protect the control and management planes.
B:Plan primary and backup identity services plus controlled behavior during RADIUS failure. But this does not address the case requirement to protect the control and management planes.
D:Validate supported anti-spoofing mechanisms with accurate trusted-uplink choices. But this does not address the case requirement to protect the control and management planes.
Question 131
An attacker on an access port runs a rogue DHCP server. What first-hop protection should be evaluated?
- Security validation with least privilege
- Segmentation boundary matrix
- 802.1X and MAC-auth exception plan
- DHCP snooping and ARP protections
Explanation
Correct Answer
D:DHCP snooping can distinguish trusted service uplinks from edge ports. Validate supported anti-spoofing mechanisms with accurate trusted-uplink choices.
Incorrect Answers
A:Verify access from representative permitted and denied identities, not only admin accounts. But this does not address the case requirement to prevent unauthorized DHCP replies on user ports.
B:Document permitted flows among roles or VLANs and map enforcement to gateways and ports. But this does not address the case requirement to prevent unauthorized DHCP replies on user ports.
C:Use 802.1X where clients support it and narrowly govern devices requiring an alternative. But this does not address the case requirement to prevent unauthorized DHCP replies on user ports.
Question 132
A test is marked successful because the network administrator can access the payroll VLAN. What stronger evidence is needed?
- DHCP snooping and ARP protections
- Management-plane hardening
- 802.1X and MAC-auth exception plan
- Security validation with least privilege
Explanation
Correct Answer
D:Least-privilege checks should include normal denied and allowed identities. Verify access from representative permitted and denied identities, not only admin accounts.
Incorrect Answers
A:Validate supported anti-spoofing mechanisms with accurate trusted-uplink choices. But this does not address the case requirement to verify real access policy rather than superuser privileges.
B:Protect administrative access with role-based privileges, trusted protocols and management reachability. But this does not address the case requirement to verify real access policy rather than superuser privileges.
C:Use 802.1X where clients support it and narrowly govern devices requiring an alternative. But this does not address the case requirement to verify real access policy rather than superuser privileges.
Question 133
A RADIUS cluster appears redundant but both nodes share one power circuit. What should the failure plan investigate?
- DHCP snooping and ARP protections
- AAA server and failover topology
- Security validation with least privilege
- Management-plane hardening
Explanation
Correct Answer
B:Identity-service resilience includes infrastructure dependencies. Plan primary and backup identity services plus controlled behavior during RADIUS failure.
Incorrect Answers
A:Validate supported anti-spoofing mechanisms with accurate trusted-uplink choices. But this does not address the case requirement to remove shared failure modes in authentication availability.
C:Verify access from representative permitted and denied identities, not only admin accounts. But this does not address the case requirement to remove shared failure modes in authentication availability.
D:Protect administrative access with role-based privileges, trusted protocols and management reachability. But this does not address the case requirement to remove shared failure modes in authentication availability.
Question 134
An approved role can access finance but a guest role is accidentally allowed. What implementation document guides correction?
- Segmentation boundary matrix
- Security validation with least privilege
- 802.1X and MAC-auth exception plan
- AAA server and failover topology
Explanation
Correct Answer
A:The intended role-to-flow matrix is the policy authority. Document permitted flows among roles or VLANs and map enforcement to gateways and ports.
Incorrect Answers
B:Verify access from representative permitted and denied identities, not only admin accounts. But this does not address the case requirement to match enforcement to documented security intent.
C:Use 802.1X where clients support it and narrowly govern devices requiring an alternative. But this does not address the case requirement to match enforcement to documented security intent.
D:Plan primary and backup identity services plus controlled behavior during RADIUS failure. But this does not address the case requirement to match enforcement to documented security intent.
Question 135
DHCP snooping is enabled but the only legitimate DHCP reply enters through an untrusted uplink. What must the installation plan specify?
- DHCP snooping and ARP protections
- Segmentation boundary matrix
- AAA server and failover topology
- Management-plane hardening
Explanation
Correct Answer
A:Correct trusted port design lets real service responses through. Validate supported anti-spoofing mechanisms with accurate trusted-uplink choices.
Incorrect Answers
B:Document permitted flows among roles or VLANs and map enforcement to gateways and ports. But this does not address the case requirement to identify trusted DHCP server-facing interfaces.
C:Plan primary and backup identity services plus controlled behavior during RADIUS failure. But this does not address the case requirement to identify trusted DHCP server-facing interfaces.
D:Protect administrative access with role-based privileges, trusted protocols and management reachability. But this does not address the case requirement to identify trusted DHCP server-facing interfaces.
Question 136
A team plans an IOS-to-AOS-CX migration but has no copy of last known-good settings. What must be prepared?
- Incremental rollout and pilot
- Change approval and notification
- Configuration backup and restore
- Baseline network telemetry
Explanation
Correct Answer
C:Recoverable backups should precede major configuration transitions. Validated backups provide the settings and recovery mechanism before risky changes.
Incorrect Answers
A:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to restore a device configuration when a change fails.
B:Document authorization, stakeholders, communication and responsible operators. But this does not address the case requirement to restore a device configuration when a change fails.
D:Collect interface, route, neighbor and error state before making changes. But this does not address the case requirement to restore a device configuration when a change fails.
Question 137
The rollout has no clear threshold for aborting if voice packet loss increases. What should be added?
- Configuration backup and restore
- Postchange handover and runbook
- Change approval and notification
- Maintenance window and rollback triggers
Explanation
Correct Answer
D:Rollback triggers and time budgets guide safe decisions. An approved window and explicit thresholds define when to revert a failed deployment.
Incorrect Answers
A:Validated backups provide the settings and recovery mechanism before risky changes. But this does not address the case requirement to decide when a failed cutover must revert.
B:Provide topology, contacts, expected state and procedures for operations. But this does not address the case requirement to decide when a failed cutover must revert.
C:Document authorization, stakeholders, communication and responsible operators. But this does not address the case requirement to decide when a failed cutover must revert.
Question 138
A trunk change is planned but no one recorded current adjacency and CRC statistics. What is missing?
- Configuration backup and restore
- Change approval and notification
- Incremental rollout and pilot
- Baseline network telemetry
Explanation
Correct Answer
D:Prechange state makes later differences identifiable. Collect interface, route, neighbor and error state before making changes.
Incorrect Answers
A:Validated backups provide the settings and recovery mechanism before risky changes. But this does not address the case requirement to distinguish existing symptoms from change-induced faults.
B:Document authorization, stakeholders, communication and responsible operators. But this does not address the case requirement to distinguish existing symptoms from change-induced faults.
C:Deploy first to a representative small segment before extending to all sites. But this does not address the case requirement to distinguish existing symptoms from change-induced faults.
Question 139
One branch is representative of 40 identical sites. Which release strategy reduces correlated risk?
- Change approval and notification
- Incremental rollout and pilot
- Postchange handover and runbook
- Maintenance window and rollback triggers
Explanation
Correct Answer
B:Pilot deployment exposes problems before wide rollout. Deploy first to a representative small segment before extending to all sites.
Incorrect Answers
A:Document authorization, stakeholders, communication and responsible operators. But this does not address the case requirement to limit initial change impact to a test population.
C:Provide topology, contacts, expected state and procedures for operations. But this does not address the case requirement to limit initial change impact to a test population.
D:An approved window and explicit thresholds define when to revert a failed deployment. But this does not address the case requirement to limit initial change impact to a test population.
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.
HPE Network Switching Professional (HPE7-A08) Practice Tests