300-740 Exam Dumps - Designing and Implementing Secure Cloud Access for Users and Endpoints (SCAZT)

The exhibit shows DNS Block as the reason and lists 10.1.108.100 as the Responder IP, with the Initiator being 10.1.113.7. In Cisco Secure Firewall Management Center reports, the “Initiator IP” is the source of the request and the “Responder IP” is the source of the response. Since the DNS security intelligence engine flagged the traffic, and 10.1.108.100 was the responder, the blocked traffic corresponds to a DNS response from that IP.

In the provided screenshot of Cisco Secure Firewall Management Center (FMC), the rule labeled "Block Facebook" is intended to block access to Facebook and Facebook Apps. However, the rule lacks correct zone configurations, which is why the block is ineffective.

Per Cisco's best practices outlined in the Designing and Implementing Secure Cloud Access for Users and Endpoints (SCAZT) documentation and Cisco Secure Firewall documentation:

The source zone should reflect where the traffic is originating from—in this case, from internal users. Therefore, Source Zone must be set to inside (Answer: E).

The destination zone should reflect where the traffic is headed—in this case, towards the internet. So, Destination Zone must be set to outside (Answer: D).

Without properly defining source and destination zones, FMC rules may not match the traffic correctly, resulting in traffic being incorrectly allowed.

In IKEv1 policy configuration for Cisco ASA, two key commands are required to define the encryption and hashing algorithms:

A: encryption aes-256 defines the encryption method for the IKE SA.

E: hash sha-256 ensures SHA-256 is used as the integrity mechanism during IKE phase 1.

According to Cisco documentation and SCAZT (Section 1: Cloud Security Architecture, Pages 19–22), these two components are essential to negotiating a secure VPN tunnel. The provided config uses group 1 (modp768), which is weak by today’s standards and could also lead to negotiation failure. However, from the available options, encryption and hash are the two required for tunnel success.

According to the MITRE ATT&CK framework and the SCAZT documentation, one of the most effective mitigation techniques against exploitation is to keep systems updated with the latest patches. Exploitation typically targets known vulnerabilities in operating systems and applications. Timely patching significantly reduces the risk of successful exploitation, especially zero-day vulnerabilities once disclosed.

Rule 1 is a “deny all” rule placed at the top of the access control policy. Because Cisco firewalls process rules sequentially from top to bottom, Rule 1 is blocking all traffic—including RDP (Rule 2) and HTTPS (Rule 3). To allow specific traffic, the “deny all” catch-all rule should be placed last so that the specific allow rules are evaluated first.

SCAZT Section 3 (Network and Cloud Security, Pages 69–74) discusses rule hierarchy and clearly states that allow rules must precede any general deny policies to ensure intended traffic is matched correctly. This best practice is essential when dealing with multi-cloud access control.