Cisco 300-710 Practice Test 11
Question 100
During a firewall implementation acceptance test: A network team deploys an inline sensor with an incorrect inside-outside pair and observes production packets bypassing inspection. Which THREE complementary elements form the corrective action, diagnostic proof and successful acceptance outcome? Select THREE answers.
- Review inline interface-pair membership, network diagrams, packet counters on both members and permitted versus test-blocked flows.
- Place the inline NGIPS interface pair directly in the intended traffic path and confirm bidirectional inspection and policy behavior.
- Treat an interface configured as inline as sufficient proof of prevention even if the network physically bypasses that pair.
- Inspect VM NIC order, virtual switch or port-group mappings, device interfaces, packet counters and relevant virtual host security settings.
- Allowed sessions pass with expected latency and test-blocked signatures are prevented on the actual traffic path.
- Configure supported equal-cost paths with appropriate next-hop health and ensure a stateful-inspection-compatible return design.
Explanation
Correct Answers
A:Direct independent How to verify: Review inline interface-pair membership, network diagrams, packet counters on both members and permitted versus test-blocked flows.
B:Appropriate implementation: Place the inline NGIPS interface pair directly in the intended traffic path and confirm bidirectional inspection and policy behavior. Case details: A network team deploys an inline sensor with an incorrect inside-outside pair and observes production packets bypassing inspection. Governing behavior: Inline IPS operates on transit packets and can enforce prevention decisions when traffic actually passes through its interface pair.
E:Required acceptance evidence: Allowed sessions pass with expected latency and test-blocked signatures are prevented on the actual traffic path. Case details: A network team deploys an inline sensor with an incorrect inside-outside pair and observes production packets bypassing inspection. Governing behavior: Inline IPS operates on transit packets and can enforce prevention decisions when traffic actually passes through its interface pair.
Incorrect Answers
C:Unsafe or unsupported shortcut for this firewall scenario: Treat an interface configured as inline as sufficient proof of prevention even if the network physically bypasses that pair.
D:That option would inspect VM NIC order, virtual switch or port-group mappings, device interfaces, packet counters and relevant virtual host security settings, but it addresses a different concern. Governing behavior: Inline IPS operates on transit packets and can enforce prevention decisions when traffic actually passes through its interface pair.
F:This alternative describes a different control, ECMP equal-cost multipath routing control, rather than this scenario’s NGIPS inline interface pair placement: Configure supported equal-cost paths with appropriate next-hop health and ensure a stateful-inspection-compatible return design.
Question 101
A CCNP Security practice scenario presents this condition: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Which security configuration or operational step BEST addresses the requirement? Select ONE best answer.
- Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
- Configure supported equal-cost paths with appropriate next-hop health and ensure a stateful-inspection-compatible return design.
- Perform a staged change plan with out-of-band recovery, configuration backups, validated target interface setup and explicit failback criteria.
Explanation
Correct Answer
A:Appropriate implementation: Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior.
Incorrect Answers
B:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. It cannot establish the stated security outcome.
C:This alternative describes a different control, ECMP equal-cost multipath routing control, rather than this scenario’s Passive versus inline inspection disruption planning: Configure supported equal-cost paths with appropriate next-hop health and ensure a stateful-inspection-compatible return design.
D:This alternative describes a different control, Change control when converting firewall deployment mode, rather than this scenario’s Passive versus inline inspection disruption planning: Perform a staged change plan with out-of-band recovery, configuration backups, validated target interface setup and explicit failback criteria.
Question 102
A firewall service owner escalates the following: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Which firewall behavior or technical principle BEST explains the observed condition? Select ONE best answer.
- Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
- High availability requires more than connected peers; synchronized configuration and appropriate state handling determine continuity.
- Forwarding availability during sensor failure and continued intrusion inspection are separate outcomes that require explicit support and operational alerting.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answer
A:Underlying platform principle: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
Incorrect Answers
B:This alternative describes a different control, High-availability state and policy synchronization, rather than this scenario’s Passive versus inline inspection disruption planning: High availability requires more than connected peers; synchronized configuration and appropriate state handling determine continuity.
C:This alternative describes a different control, Inline IPS bypass and health signaling, rather than this scenario’s Passive versus inline inspection disruption planning: Forwarding availability during sensor failure and continued intrusion inspection are separate outcomes that require explicit support and operational alerting.
D:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. It cannot establish the stated security outcome.
Question 103
An approved maintenance window surfaces this issue: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Which specific evidence is MOST useful to confirm the real root cause? Select ONE best answer.
- Inspect peer state, failover-interface health, monitored link list, alarms and connection recovery during a controlled interruption.
- Examine interface membership and BVI addressing, adjacent switches' MAC learning, policy deployment state and authorized management access.
- Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answer
C:Direct independent verification: Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
Incorrect Answers
A:This alternative describes a different control, HA active standby roles and failover triggers, rather than this scenario’s Passive versus inline inspection disruption planning: Inspect peer state, failover-interface health, monitored link list, alarms and connection recovery during a controlled interruption.
B:This alternative describes a different control, Transparent firewall bridge groups and BVI design, rather than this scenario’s Passive versus inline inspection disruption planning: Examine interface membership and BVI addressing, adjacent switches' MAC learning, policy deployment state and authorized management access.
D:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. Case details: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Governing behavior: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
Question 104
A Secure Firewall deployment change request reports: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Which observed result BEST confirms that the change meets the intended security requirement? Select ONE best answer.
- The deployed mode delivers the intended enforcement or passive visibility without unexpected service impact during maintenance.
- Established sessions retain correct state and both directions follow a supported inspected path under normal and failover routing.
- The device returns to managed healthy service and user flows traverse the intended new topology without an unmanaged outage.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answer
A:Required acceptance evidence: The deployed mode delivers the intended enforcement or passive visibility without unexpected service impact during maintenance.
Incorrect Answers
B:This alternative describes a different control, Traffic flow through routed interfaces with asymmetric return, rather than this scenario’s Passive versus inline inspection disruption planning: Established sessions retain correct state and both directions follow a supported inspected path under normal and failover routing.
C:This alternative describes a different control, Change control when converting firewall deployment mode, rather than this scenario’s Passive versus inline inspection disruption planning: The device returns to managed healthy service and user flows traverse the intended new topology without an unmanaged outage.
D:That option would assume passive and inline modes have equivalent failure domains and identical ability to block production packets, but it addresses a different concern. Governing behavior: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
Question 105
An FMC policy and traffic review discovers: An application team demands zero packet forwarding impact during sensor maintenance yet selects an always-inline insertion without analyzing fail-open options. Which misleading assumption MOST directly causes this issue and must be rejected? Select ONE best answer.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
- Assume the physical interface link being up proves the entire upstream routed path is healthy.
- Assume simply plugging in more Ethernet links automatically adds their capacity to a firewall interface.
- Assume enabling a routed firewall automatically preserves Layer 2 adjacency and eliminates the need to plan reverse routing.
Explanation
Correct Answer
A:Reject the scenario-specific unsafe assumption: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. The stated shortcut conflicts with the intended control and its documented verification.
Incorrect Answers
B:This alternative describes a different control, Static route tracking with monitored target, rather than this scenario’s Passive versus inline inspection disruption planning: Assume the physical interface link being up proves the entire upstream routed path is healthy.
C:This alternative describes a different control, LACP port channels and logical interfaces, rather than this scenario’s Passive versus inline inspection disruption planning: Assume simply plugging in more Ethernet links automatically adds their capacity to a firewall interface.
D:This alternative describes a different control, Routed firewall interface addressing and routing, rather than this scenario’s Passive versus inline inspection disruption planning: Assume enabling a routed firewall automatically preserves Layer 2 adjacency and eliminates the need to plan reverse routing.
Question 106
An engineer validates a Cisco Secure Firewall implementation: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Which security configuration or operational step BEST addresses the requirement? Select ONE best answer.
- Validate a loop-free transparent insertion, appropriate switch port roles and bridge-group membership before enabling intended inspection policies.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
- Configure Layer 3 interfaces, appropriate security zones and forward and return routing, then deploy the intended policy after validating topology.
- Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior.
Explanation
Correct Answer
D:Appropriate implementation: Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior.
Incorrect Answers
A:This alternative describes a different control, Transparent firewall Layer 2 adjacency and MAC learning, rather than this scenario’s Passive versus inline inspection disruption planning: Validate a loop-free transparent insertion, appropriate switch port roles and bridge-group membership before enabling intended inspection policies.
B:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. It cannot establish the stated security outcome.
C:This alternative describes a different control, Routed firewall interface addressing and routing, rather than this scenario’s Passive versus inline inspection disruption planning: Configure Layer 3 interfaces, appropriate security zones and forward and return routing, then deploy the intended policy after validating topology.
Question 107
A security operations incident describes: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Which firewall behavior or technical principle BEST explains the observed condition? Select ONE best answer.
- HA peers use role and health information to determine failover, and monitoring scope influences whether a path failure triggers takeover.
- Inline IPS operates on transit packets and can enforce prevention decisions when traffic actually passes through its interface pair.
- Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answer
C:Underlying platform principle: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
Incorrect Answers
A:This alternative describes a different control, HA active standby roles and failover triggers, rather than this scenario’s Passive versus inline inspection disruption planning: HA peers use role and health information to determine failover, and monitoring scope influences whether a path failure triggers takeover.
B:This alternative describes a different control, NGIPS inline interface pair placement, rather than this scenario’s Passive versus inline inspection disruption planning: Inline IPS operates on transit packets and can enforce prevention decisions when traffic actually passes through its interface pair.
D:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. Case details: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Governing behavior: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
Question 108
During a firewall implementation acceptance test: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Which specific evidence is MOST useful to confirm the real root cause? Select ONE best answer.
- Inspect approved bypass capability, link-state transitions, intrusion-event silence, monitored health telemetry and recovery records.
- Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
- Inspect interface modes and addresses, route selection on both sides, ARP for directly connected peers and a controlled packet trace.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answer
B:Direct independent verification: Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
Incorrect Answers
A:This alternative describes a different control, Inline IPS bypass and health signaling, rather than this scenario’s Passive versus inline inspection disruption planning: Inspect approved bypass capability, link-state transitions, intrusion-event silence, monitored health telemetry and recovery records.
C:This alternative describes a different control, Routed firewall interface addressing and routing, rather than this scenario’s Passive versus inline inspection disruption planning: Inspect interface modes and addresses, route selection on both sides, ARP for directly connected peers and a controlled packet trace.
D:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets. Case details: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Governing behavior: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability. Approved action: Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior. Independent evidence: Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests. Acceptance criterion: The deployed mode delivers the intended enforcement or passive visibility without unexpected service impact during maintenance.
Question 109
A CCNP Security practice scenario presents this condition: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Which observed result BEST confirms that the change meets the intended security requirement? Select ONE best answer.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
- Healthy links share eligible flows as intended and failure removes unusable next hops without unsupported state asymmetry.
- The deployed mode delivers the intended enforcement or passive visibility without unexpected service impact during maintenance.
- Traffic is inspected across the bridge while hosts retain their intended gateway and administrators reach the documented management endpoint.
Explanation
Correct Answer
C:Required acceptance evidence: The deployed mode delivers the intended enforcement or passive visibility without unexpected service impact during maintenance.
Incorrect Answers
A:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
B:This alternative describes a different control, ECMP equal-cost multipath routing control, rather than this scenario’s Passive versus inline inspection disruption planning: Healthy links share eligible flows as intended and failure removes unusable next hops without unsupported state asymmetry.
D:This alternative describes a different control, Transparent firewall bridge groups and BVI design, rather than this scenario’s Passive versus inline inspection disruption planning: Traffic is inspected across the bridge while hosts retain their intended gateway and administrators reach the documented management endpoint.
Question 110
A firewall service owner escalates the following: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Which TWO complementary choices provide the most appropriate corrective action and its direct independent verification? Select TWO answers.
- Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior.
- Inspect approved runbook, prechange snapshots, recovery access, lab cutover results and reachability tests after each step.
- Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
- Use supported static route tracking or SLA monitoring with a monitored destination and a defined fallback route when appropriate.
- Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
Explanation
Correct Answers
A:Appropriate implementation: Choose passive monitoring for out-of-band visibility or supported inline prevention for enforcement, documenting maintenance failure behavior. Case details: A security group expects a passive network sensor to quarantine a production malware connection automatically when a rule fires. Governing behavior: Passive sensing and inline enforcement differ in packet path and potential availability impact; neither automatically provides the other's capability.
C:Direct independent How to verify: Review logical packet path, appliance mode, interface fail-open or bypass support and controlled downtime tests.
Incorrect Answers
B:This alternative describes a different control, Change control when converting firewall deployment mode, rather than this scenario’s Passive versus inline inspection disruption planning: Inspect approved runbook, prechange snapshots, recovery access, lab cutover results and reachability tests after each step.
D:This alternative describes a different control, Static route tracking with monitored target, rather than this scenario’s Passive versus inline inspection disruption planning: Use supported static route tracking or SLA monitoring with a monitored destination and a defined fallback route when appropriate.
E:Unsafe or unsupported shortcut for this firewall scenario: Assume passive and inline modes have equivalent failure domains and identical ability to block production packets.
