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Question 21.

An administrator wants to determine which access control rule is responsible for permitting a specific application session through a Cisco Secure Firewall Threat Defense device. Which information should be reviewed first?

1. Connection events and the matched access control rule
   2. Only interface statistics
   3. Only routing protocol neighbors
   4. Device serial-number information

Correct Answer: 1

Explanation:

Connection events are one of the most useful sources for determining how Secure Firewall handled a particular session. When appropriate logging is enabled, the event can show source and destination information, application identification, ports, user identity, security zones, and the access control rule associated with the connection. This allows the administrator to verify whether traffic matched the expected rule. Interface or routing information may help with connectivity troubleshooting, but it does not directly identify which access control rule made the policy decision.

Question 22.

A Secure Firewall administrator modifies several network objects that are referenced by an active access control policy. What must be done for the managed Threat Defense devices to enforce the new object values?

1. Restart all endpoints
   2. Recreate the access control policy
   3. Remove and re-add the managed devices
   4. Deploy the pending configuration changes

Correct Answer: 4

Explanation:

Changes made in Secure Firewall Management Center, including modifications to objects referenced by policies, remain pending until they are deployed to the appropriate managed devices. The administrator does not normally need to rebuild the policy or re-register the firewall. Deployment transfers the updated configuration so the Threat Defense device can begin enforcing the new values. Checking deployment status afterward is useful to ensure that the update completed successfully and that no configuration errors prevented the change from becoming active.

Question 23.

Which Cisco Secure Firewall capability is specifically designed to identify and block known malicious files based on malware analysis and reputation?

1. Dynamic routing
   2. High availability
   3. Advanced malware protection integrated with file inspection
   4. Network Address Translation

Correct Answer: 3

Explanation:

Malware protection integrated with file inspection allows Cisco Secure Firewall to evaluate supported files traversing the device and determine whether they are malicious or suspicious. File reputation, analysis, and related malware intelligence can be used to generate events or enforce blocking actions. Routing, NAT, and high availability are important firewall functions, but they do not provide file-level malware detection. File and malware policies must be associated appropriately with access control rules to provide this protection.

Question 24.

An administrator wants HTTP traffic to an internal application to bypass deep inspection because the application is trusted and performance is the highest priority. Which access control action is most appropriate?

1. Block
   2. Trust
   3. Interactive Block
   4. Intrusion inspection only

Correct Answer: 2

Explanation:

The Trust action permits matching traffic and bypasses additional inspection for that traffic, which can reduce processing overhead. It should be used carefully because bypassing inspection also reduces security visibility and protection. It is best suited to traffic that has been explicitly evaluated and determined to be trusted. An Allow action would permit the traffic while still allowing additional inspection depending on policy settings, whereas Block would deny the connection entirely.

Question 25.

An administrator notices that a broad Allow rule is positioned above a more specific Block rule in an access control policy. Traffic that should be denied is being permitted. What is the most likely cause?

1. The broad Allow rule is matching the traffic before the specific Block rule is evaluated
   2. Static routing is overriding the Block rule
   3. NAT is automatically changing the access control action
   4. High availability is disabling the policy

Correct Answer: 1

Explanation:

Access control rules are evaluated in order, and rule placement is therefore critical. If a broad Allow rule appears before a more specific Block rule and matches the same traffic, the later rule may never be reached. The administrator should review the match conditions and rule ordering and place specific exceptions appropriately. Routing and NAT can affect packet forwarding and addressing, but they do not normally override the rule evaluation sequence in the manner described.

Question 26.

Which feature can quickly block connections to known malicious IP addresses before more resource-intensive access control and intrusion inspection occurs?

1. QoS only
   2. Static NAT
   3. Health monitoring
   4. Security Intelligence

Correct Answer: 4

Explanation:

Security Intelligence provides an early filtering mechanism based on known malicious or trusted indicators such as IP addresses, networks, domains, and URLs. Traffic that matches configured block lists can be denied before it reaches more computationally expensive inspection stages. This can improve both security and efficiency. QoS manages traffic treatment, NAT changes addressing, and health monitoring tracks operational status. None of those features provides the same reputation- or intelligence-driven early filtering capability.

Question 27.

Which Cisco Secure Firewall policy type determines which Snort intrusion rules are enabled and how matching traffic is handled?

1. NAT policy
   2. Platform settings policy
   3. Intrusion policy
   4. Prefilter policy

Correct Answer: 3

Explanation:

An intrusion policy controls the behavior of intrusion detection and prevention inspection. It determines which Snort rules are enabled, how rules are configured, and what actions occur when malicious or suspicious patterns are detected. The intrusion policy is typically associated with appropriate access control rules. NAT policy handles address translation, platform settings configure device-level functions, and prefilter policy can make early traffic-handling decisions but does not define Snort rule behavior.

Question 28.

An administrator needs to allow a public-facing web server to use one consistent public IP address while retaining its private address internally. Which configuration best meets this requirement?

1. Dynamic PAT
   2. Static NAT
   3. Identity NAT
   4. No NAT configuration

Correct Answer: 2

Explanation:

Static NAT provides a predictable one-to-one mapping between an internal private address and a translated public address. This is commonly used for servers that must be reachable from external networks using a stable public IP. Dynamic PAT is typically used to let many internal clients share one translated address for outbound connectivity. Identity NAT keeps addresses unchanged. A static translation is therefore the most appropriate option for publishing a server consistently.

Question 29.

A user is denied access to a website because it belongs to a prohibited content category. Which feature is most likely enforcing the restriction?

1. URL filtering in the access control policy
   2. High availability
   3. Static routing
   4. DHCP relay

Correct Answer: 1

Explanation:

URL filtering allows Cisco Secure Firewall policies to permit or block web traffic based on categories and reputation. Administrators can restrict categories such as gambling, malware, adult content, or other organization-defined groups without maintaining individual URL lists manually. URL filtering is integrated into access control policy conditions. High availability, routing, and DHCP relay provide infrastructure functions but do not perform content-category-based web access control.

Question 30.

An intrusion event is repeatedly triggered by an authorized penetration-testing system. The administrator has verified that the activity is expected. What is the best response?

1. Disable the entire intrusion policy
   2. Remove all connection logging
   3. Block the penetration-testing system permanently
   4. Tune or suppress the specific noisy intrusion behavior for the authorized source

Correct Answer: 4

Explanation:

Targeted tuning is preferred when a known, authorized system generates repetitive intrusion events. The administrator can use suppression, thresholding, or other rule-tuning mechanisms to reduce unnecessary alerts while preserving protection for the remainder of the environment. Disabling the entire intrusion policy would unnecessarily weaken security. The goal is to reduce false-positive noise without losing visibility into genuine attacks from other sources or different behaviors.

Question 31.

Which feature allows an administrator to create firewall policy decisions based on detected applications rather than relying only on TCP or UDP port numbers?

1. Static routing
   2. Network object grouping
   3. Application identification and control
   4. Interface redundancy

Correct Answer: 3

Explanation:

Application identification allows Secure Firewall to recognize applications based on traffic characteristics, protocols, and behavior rather than relying solely on port numbers. This is especially useful because many applications use dynamic ports or share common ports such as TCP 443. Application-aware access control allows administrators to permit or deny specific applications or application categories with greater precision. Static routing and object grouping do not independently provide application-layer identification.

Question 32.

An administrator enables outbound TLS decryption and users begin receiving certificate warnings. Which configuration should be verified first?

1. Routing metrics
   2. Whether client devices trust the certificate authority used for firewall decryption
   3. NAT pool size
   4. Interface duplex settings

Correct Answer: 2

Explanation:

During outbound TLS decryption, the firewall typically generates substitute certificates for the destination websites and signs them using a configured certificate authority. Client devices must trust that CA. If the CA certificate is not installed or trusted on endpoints, browsers and applications can display certificate warnings. Routing, NAT, and interface duplex settings would not normally produce this specific certificate-validation symptom. Endpoint trust configuration is therefore the first area to verify.

Question 33.

An organization wants encrypted outbound traffic inspected for malware and intrusion attempts. Which feature is required to provide visibility into the encrypted payload?

1. TLS/SSL decryption
   2. Static NAT
   3. Dynamic routing
   4. High availability

Correct Answer: 1

Explanation:

TLS/SSL decryption enables Secure Firewall to inspect eligible encrypted sessions by decrypting traffic, applying security controls, and then handling the session according to policy. Without decryption, some application content and payload details remain hidden from inspection engines. Decryption must be implemented carefully because it affects certificate trust, privacy, performance, and application compatibility. NAT, routing, and high availability do not expose encrypted application payloads for security inspection.

Question 34.

Which feature should be used when an administrator needs to examine operational status such as interface condition, device resource utilization, and managed-device health?

1. File policy
   2. Security Intelligence
   3. NAT policy
   4. Health monitoring

Correct Answer: 4

Explanation:

Health monitoring provides visibility into the operational state of Secure Firewall components and managed devices. It can help administrators identify issues related to interfaces, resource utilization, device communication, processes, and other health conditions. Health information is useful for proactive monitoring and troubleshooting. File policies inspect file transfers, Security Intelligence provides reputation-based traffic filtering, and NAT policies manage address translation rather than device operational health.

Question 35.

A company wants firewall rules to permit an application only for members of a specific corporate user group. Which capability is required?

1. Static NAT
   2. Port-channel configuration
   3. Identity-based access control
   4. OSPF authentication

Correct Answer: 3

Explanation:

Identity-based access control enables Secure Firewall policies to reference users and user groups rather than relying only on source IP addresses. By obtaining identity context from supported identity sources, the firewall can associate traffic with users and enforce policies based on group membership. This supports requirements such as permitting an application only for members of a designated corporate group. NAT, routing authentication, and port channels do not provide user-aware access control.

Question 36.

An administrator is troubleshooting why a policy change has not taken effect on a managed Threat Defense device. Management Center shows pending changes. What should the administrator do?

1. Replace the firewall
   2. Deploy the pending changes to the managed device
   3. Delete the access control policy
   4. Restart all network switches

Correct Answer: 2

Explanation:

Pending changes in Secure Firewall Management Center indicate that configuration modifications have not yet been deployed to the managed device. The administrator should review the pending configuration and initiate deployment to the appropriate Threat Defense sensor. After deployment, the status should be checked for errors or warnings. Replacing hardware, deleting policy, or restarting unrelated switches would not address the normal configuration workflow represented by pending changes.

Question 37.

An administrator wants to identify whether a particular file was detected as malware as it passed through a Secure Firewall device. Which event data should be reviewed?

1. File and malware events
   2. OSPF neighbor table only
   3. Interface counters only
   4. DHCP lease information

Correct Answer: 1

Explanation:

File and malware events provide information about files observed and analyzed by Secure Firewall security features. Depending on policy and capabilities, these events can include file type, disposition, hash, transfer context, and malware-related verdict information. They are therefore the appropriate source when determining whether a file was identified as malicious. Routing tables, interface counters, and DHCP data do not provide file-level malware analysis information.

Question 38.

Which Secure Firewall function provides redundancy so that another appliance can continue forwarding traffic if the active appliance fails?

1. URL filtering
   2. Security Intelligence
   3. File inspection
   4. High availability

Correct Answer: 4

Explanation:

High availability is designed to improve resiliency by pairing compatible firewall devices so service can continue when one unit experiences a failure. Depending on the supported deployment model, state and configuration information are coordinated between peers, and the standby device can assume the forwarding role when necessary. URL filtering, Security Intelligence, and file inspection provide security-control functions but do not provide appliance-level redundancy.

Question 39.

Which Cisco Secure Firewall feature can generate a user-facing warning page that allows a user to choose whether to continue to a blocked web destination when policy permits such interaction?

1. Dynamic PAT
   2. Intrusion suppression
   3. Interactive Block
   4. Static routing

Correct Answer: 3

Explanation:

Interactive Block can present users with a warning page for matching web traffic and allow them to proceed when policy permits. This provides a middle ground between unrestricted access and a hard block. It can be useful for categories that an organization wants to discourage while still allowing users to continue under defined conditions. NAT, intrusion suppression, and routing do not provide this browser-based user interaction capability.

Question 40.

A connection is unexpectedly denied, and the administrator wants the fastest method to determine which firewall policy stage caused the decision. What should be done first?

1. Reboot the Threat Defense appliance
   2. Review the relevant connection events, rule matches, and related policy processing information
   3. Disable intrusion prevention globally
   4. Delete the NAT policy

Correct Answer: 2

Explanation:

Reviewing connection events and the policy context associated with the session is the best initial troubleshooting approach. The administrator can determine the action, matched access control rule, application, user, zones, and other relevant details. If necessary, the investigation can then expand into Security Intelligence, NAT, decryption, intrusion, or routing behavior. Rebooting the device or disabling security controls without evidence can create unnecessary disruption while failing to identify the actual cause.