Cisco 300-710 Practice Test - Questions Answers, Page 32

To ensure that router R2 removes the directly connected route for 192.168.1.0/24 from its routing table when the cable between router R1 and the Secure FTD device is disconnected, the network engineer must implement the 'Propagate Link State' option on the Secure FTD device. This option allows the FTD to propagate the link state changes to adjacent devices, ensuring that the disconnection is recognized and the routing table is updated accordingly.

Steps:

Access the FTD device configuration via FMC.

Navigate to the interface settings for the relevant interfaces.

Enable the 'Propagate Link State' option for the interfaces connected to R1 and R2.

Deploy the changes to the FTD device.

This configuration ensures that the link state changes are communicated to router R2, prompting it to remove the disconnected route from its routing table.

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.

If inside clients have intermittent connectivity issues and the Cisco Secure FTD is responding to all ARP requests on the inside network, it indicates that there may be an incorrect proxy ARP configuration in the NAT policy. Proxy ARP can cause the FTD to respond to ARP requests on behalf of other devices, leading to connectivity issues.

Steps to resolve:

Review the NAT policy on the FTD to identify any incorrect proxy ARP configurations.

Disable the proxy ARP setting for the relevant NAT rules that are causing the issue.

This ensures that the FTD only responds to ARP requests as needed, preventing it from interfering with normal ARP traffic on the inside network.

To exempt a custom application from being flagged by Cisco Secure Endpoint, the organization must precalculate the hash value of the custom application and add it to the allowed applications list. This process involves creating a hash of the executable file, which uniquely identifies it, and then configuring Cisco Secure Endpoint to recognize this hash as trusted.

Steps:

Calculate the hash value (e.g., SHA-256) of the custom application executable.

In the Cisco Secure Endpoint management console, navigate to the policy configuration.

Add the calculated hash value to the list of allowed applications or exclusions.

Save and deploy the updated policy.

By adding the hash value to the allowed applications, Cisco Secure Endpoint will recognize the custom application as trusted and will no longer flag it.

In Cisco Secure Firewall Management Center (FMC), when two users attempt to modify a VPN policy simultaneously, the system implements a locking mechanism to prevent conflicts. The first user who selects edit on the policy locks the configuration, preventing other users from making changes until the lock is released.

Steps:

When the first user selects edit on the VPN policy, FMC locks the policy for editing.

The lock ensures that only the first user can make changes.

Once the first user saves or cancels their changes, the lock is released.

Other users can then edit the policy.

This locking mechanism ensures that configuration conflicts are avoided and only one set of changes is applied at a time.

When creating a new intrusion rule in a Cisco Secure Firewall Threat Defense (FTD) device, the keyword type 'metadata' must be used to add a line that identifies the author of the rule and the date it was created. The metadata keyword is used to store additional information about the rule, such as authorship and creation date.

Steps:

In FMC, navigate to Policies > Intrusion > Rules.

Create a new rule or edit an existing one.

Use the 'metadata' keyword to add information about the author and date.

Example:

metadata: created_at 2023-06-15, author 'John Doe';

By using the metadata keyword, you ensure that the rule contains relevant information for tracking its creation and authorship, which is essential for maintaining rule documentation and accountability.

Based on the Attacks Risk Report, DNS is associated with a high number of impact events (16). DNS traffic is critical for network operations but can also be exploited for malicious activities such as DNS tunneling, DDoS attacks, and data exfiltration. To improve security, the security engineer should focus on inspecting DNS traffic. This involves deploying DNS security solutions and monitoring DNS traffic for anomalies to detect and mitigate potential threats.

Steps:

Implement DNS security tools such as DNS filtering, DNSSEC, and DNS anomaly detection.

Configure the firewall to inspect DNS traffic for malicious activities.

Regularly analyze DNS logs to identify and respond to threats.

This action addresses a significant risk identified in the report and helps to mitigate potential attacks exploiting DNS.

To collect 24 hours' worth of data using a packet capture on a Cisco Secure Firewall Threat Defense (FTD) appliance without prematurely stopping due to buffer size limitations, the engineer should increase the packet capture buffer size. The default buffer size is 32 MB, which is insufficient for extended captures.

Steps:

Access the packet capture configuration on the FTD device.

Increase the buffer size to 1 GB, which provides a significantly larger capacity for capturing packets over a 24-hour period.

Setting the buffer size to 1 GB should accommodate a substantial amount of traffic and prevent the capture from stopping prematurely.

To streamline the process of reviewing events and modifying blocking of specific files across both the firewall console and the endpoint console, the security engineer should initiate the integration between Secure FMC and Cisco Secure Endpoint (formerly AMP for Endpoints) from the Secure FMC using the AMP tab.

Steps:

In the FMC, navigate to Devices > Device Management.

Select the device and go to the AMP tab.

Initiate the integration by configuring the necessary API credentials and linking the FMC to the Cisco Secure Endpoint console.

This integration allows the security engineer to view endpoint events and apply blocking actions directly from the FMC, consolidating the management tasks.

This approach simplifies the workflow by providing a single interface to manage both network and endpoint security, reducing the time and effort required to maintain security across the organization.