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Individual intrusion rules do not support direct time-range conditions or scheduled activation triggers. Instead, the administrator creates a time-range object and uses it as a condition in an access control rule. The required intrusion policy is then associated with that access control rule. During the specified time range, matching traffic invokes the intrusion policy and its enabled intrusion rules; outside the range, the access control rule does not match. Multiple access control rules can be created when different intrusion policies or protection levels are needed at different times. Secure Firewall Management Center does not require an external scheduled task to enable and disable individual intrusion rules. Cisco documents time-range objects as the mechanism for making supported policies apply only during defined periods. Therefore, time-based access control rules are the correct implementation. Cisco time-range objects

To protect and encrypt the synchronization/failover traffic between Cisco Secure Firewall Threat Defense (FTD) high-availability or cluster units, the correct action is to encrypt the synchronization traffic with IPsec (via the failover/state link configuration) or choose the appropriate cryptographic authentication/key settings

Integrated Routing and Bridging allows a Secure Firewall device operating in routed mode to contain bridge groups while also supporting routed interfaces. Multiple physical or logical interfaces can become members of one bridge group, placing them in the same Layer 2 broadcast domain, VLAN, and IP subnet. A Bridge Virtual Interface represents that bridge group at Layer 3 and functions as its gateway, permitting communication between the bridged network and routed interfaces or other bridge groups, subject to security policy. This can remove the need for an additional external Layer 2 switch when suitable firewall interfaces are available. IRB does not itself provide high availability, security-context separation, or Cisco Talos threat-intelligence updates. Those capabilities are implemented through separate features. Therefore, allowing multiple interfaces to participate in the same VLAN is the stated IRB benefit. Cisco IRB documentation

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The default action setting in a Cisco FTD Access Control Policy determines how the system handles and logs traffic that is not handled by any other access control configuration. The default action can block or trust all traffic without further inspection, or inspect traffic for intrusions and discovery data3.

The Trust All Traffic option allows all traffic from an undefined application to pass without Snort inspection. This option also disables Security Intelligence filtering, file and malware inspection, and URL filtering for all traffic handled by the default action. This option is useful when you want to minimize the performance impact of access control on your network3.

The other options are incorrect because:

The Inherit from Base Policy option inherits the default action setting from the base policy. The base policy is the predefined access control policy that you use as a starting point for creating your own policies. Depending on which base policy you choose, the inherited default action setting can be different3.

The Network Discovery Only option inspects all traffic for discovery data only. This option enables Security Intelligence filtering for all traffic handled by the default action, but disables file and malware inspection, URL filtering, and intrusion inspection. This option is useful when you want to collect information about your network before you configure access control rules3.

The Intrusion Prevention option inspects all traffic for intrusions and discovery data. This option enables Security Intelligence filtering, file and malware inspection, URL filtering, and intrusion inspection for all traffic handled by the default action. This option provides the most comprehensive protection for your network, but also has the most performance impact3.

To perform rapid threat containment with Cisco FMC, the necessary component is Cisco Identity Services Engine (ISE). ISE integrates with FMC to provide dynamic network access control and enforcement, allowing for quick isolation of compromised endpoints based on security events detected by FMC.

Steps:

Integrate FMC with ISE by configuring the necessary settings in both platforms.

Define security policies in FMC that trigger rapid threat containment actions via ISE.

When a threat is detected, FMC can instruct ISE to isolate the affected endpoint, limiting its access to the network.

This integration enables automated and efficient threat containment, reducing the response time and mitigating the impact of security incidents.