300-710 SNCF Practice Test 5 — 10 Questions

Question 1

You are deploying a Cisco Secure Firewall Threat Defense in transparent mode. How are frames forwarded between the internal and external interfaces of the firewall?

Accepted Answer

By bridging frames at Layer 2 based on destination MAC addresses within a configured Bridge Group.. In transparent mode, the FTD forwards frames at Layer 2 by bridging based on destination MAC addresses within a configured Bridge Group. The firewall does not perform IP route lookups or decrement TTL; it acts like a Layer 2 switch with security inspection. This allows the firewall to be inserted into an existing network without changing IP addressing.

Answer

By encapsulating all packets inside GRE tunnels between the ingress and egress ports.

Answer

By translating all private IP addresses to public IP addresses using NAT overload.

Answer

By performing IP route lookups and decrementing the TTL on every packet.

Question 2

A network engineer needs to configure Auto NAT on a Firepower Threat Defense device managed by FMC to translate internal subnet 10.10.10.0/24 to a single public IP address 203.0.113.50. Which translation type should be selected?

Accepted Answer

Dynamic PAT (Port Address Translation). Dynamic PAT (Port Address Translation) is the correct choice because it translates multiple internal IP addresses to a single public IP address using unique source ports. This allows the entire 10.10.10.0/24 subnet to share one public IP, which is the typical use case for PAT. Static NAT would require a one-to-one mapping, and Dynamic NAT would require a pool of public IPs.

Answer

Static NAT

Answer

Static Identity NAT

Answer

Dynamic NAT

Question 3

An administrator is troubleshooting an FTD device that is failing to register with FMC. The FTD has been configured with the correct FMC IP address, registration key, and NAT ID. Which additional setting must be verified on the FTD to allow successful registration?

Accepted Answer

The FTD must have a default route to reach the FMC.. The FTD requires a route to reach FMC. If FMC is on a different network, a default gateway or static route must be configured on the management interface. Without it, registration packets cannot reach FMC. DNS, time zone, and NAT ID are either already addressed or not blocking registration in this scenario.

Answer

The FTD must be able to resolve the FMC's hostname via DNS.

Answer

The FTD must be configured with the same NAT ID as the FMC.

Answer

The FTD must have the same time zone as the FMC.

Question 4

An administrator needs to create a variable set to define specific port or network variables used within Intrusion Rules. Where are variable sets managed in the FMC?

Accepted Answer

Objects > Object Management > Variable Sets. In FMC, variable sets used by Intrusion Rules are managed under Objects > Object Management > Variable Sets. This is where administrators define variables such as $HOME_NET, $EXTERNAL_NET, and port variables that Snort rules reference. The variable sets are then applied to the Intrusion Policy.

Answer

Devices > Device Management > Variables

Answer

System > Localized Variables

Answer

Policies > Access Control > Variables

Question 5

A security requirement mandates that QoS be applied to limit bandwidth for guest users. Where is QoS configured on an FMC-managed FTD?

Accepted Answer

In a separate QoS Policy. QoS policies are defined as a separate policy type in the FMC and then applied to the Access Control Policy.

Answer

Within the Access Control Policy rules

Answer

Under the Platform Settings

Answer

In the Prefilter Policy

Question 6

An administrator is implementing an SSL Decryption Policy on a Cisco Firepower Threat Defense device managed by FMC. The policy must decrypt outbound HTTPS traffic to inspect for malware, but certain financial domains must be excluded from decryption to comply with privacy regulations. Which rule action should be configured for these specific financial domains in the SSL Decryption Policy?

Accepted Answer

Do Not Decrypt. To prevent inspection and decryption of sensitive traffic while allowing it to pass through the firewall, the Do Not Decrypt action is used in the SSL Decryption Policy.

Answer

Decrypt - Known Key

Answer

Block

Answer

Decrypt - Resign

Question 7

You are analyzing connection events and notice a block action. Which field in the connection event details best explains why the connection was dropped by the policy?

Accepted Answer

Reason. The 'Reason' field in a connection event explicitly states why the connection was dropped, such as 'Blocked by Access Control Rule' or 'Drop due to Snort rule'. It is the most direct indicator of the policy enforcement cause. Other fields like Policy Enforcement or Connection Policy may show related metadata but do not provide the specific drop reason.

Answer

Policy Enforcement

Answer

Connection Policy

Answer

Traffic Log

Answer

Drop Description

Question 8

An administrator is planning an upgrade of an FMC managing multiple FTD devices across various software versions. Which THREE factors must be validated according to Cisco compatibility guidelines before proceeding? (Choose three)

Accepted Answer

Supported upgrade paths (e.g., whether a direct jump from v6.4 to v7.4 is supported or requires an intermediate upgrade).. Option A is correct because Cisco upgrade planning requires verifying supported upgrade paths; for example, a direct jump from v6.4 to v7.4 may not be supported and may require an intermediate release such as v7.0 or v7.2 before reaching v7.4. Option B is correct because the upgrade process must have sufficient free space on FMC and FTD partitions, including /var and /root, so that downloaded packages and temporary files can be unpacked and staged without filling the filesystem. Option E is correct because the Cisco Firepower Compatibility Guide must be consulted to confirm that the target FMC software version interoperates with and supports the FTD versions currently managed by that FMC. Option C is not required because NTP stratum 1 is not a Cisco Firepower upgrade prerequisite; time synchronization matters, but the local NTP server does not have to be stratum 1. Option D is not required because the serial numbers of external power supplies are irrelevant to software compatibility and upgrade validation.

Answer

The local NTP server stratum level must be exactly stratum 1.

Answer

The serial number of the external power supplies attached to the rack mount chassis.

Question 9

An administrator is configuring Cisco SecureX threat intelligence integration with Cisco Secure Firewall Threat Defense via the FMC. Which TWO actions can be performed directly through the SecureX integration? (Choose two)

Accepted Answer

Automatic synchronization of dynamic Indicators of Compromise (IoCs) to block malicious traffic.. SecureX integration allows sharing indicators of compromise (IoCs) for automated blocking/alerting and pivoting to Threat Response for investigation.

Answer

Real-time firmware updates pushed from the SecureX cloud console to the managed firewalls.

Answer

Replacement of local FMC policy administration with cloud-only RBAC management.

Answer

Direct deployment of Snort 3 custom intrusion rules compiled locally on the SecureX cloud platform.

Question 10

Which THREE criteria can be used to match traffic within an Access Control rule on the FMC? (Choose three)

Accepted Answer

URL Categories. In Cisco FMC, an Access Control rule can match traffic using criteria such as URL Categories (C), which let you filter based on reputation or category of requested web destinations; Applications (D), which identify traffic by application or application group via Snort/App-ID; and Security Zones (E), which match the ingress/egress interfaces assigned to zones. These three are all valid match conditions on the rule's main criteria tabs. Intrusion Policy Signatures (A) are not a match criterion — an Intrusion Policy is an inspection action applied to traffic that already matched the rule. Device Platform Settings (B) are also not a match condition; platform settings are applied via a Platform Settings policy to managed devices, not used to select traffic in an access rule.

Answer

Intrusion Policy Signatures

Answer

Device Platform Settings