300-740 Exam Dumps - Cisco CCNP Security Questions and Answers

The JSON configuration shown is missing a specific Layer 4 parameter definition for port 25 (SMTP). Although the protocol (proto: 6, which is TCP) is defined, without specifying the actual port in the l4_params array, traffic filtering will not trigger on SMTP. Therefore, the engineer must add "port": [25, 25] to the l4_params section to ensure traffic on port 25 is blocked.

In Cisco ASA configurations using IKEv2, the integrity command defines the hash algorithm. To use SHA-512, the correct syntax is:

integrity sha512

Without this, the IKEv2 proposal is considered incomplete or mismatched with the peer. The encryption command sets encryption (AES-256, etc.), not hashing. The correct structure is:

crypto ikev2 policy <#>

encryption aes-256

integrity sha512

group 2

prf sha512

lifetime 86400

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.

Multifactor Authentication (MFA) is one of the most effective mitigations against brute-force attacks. Even if an attacker guesses or steals a user’s password, they would still need a second authentication factor (e.g., push notification, hardware token, biometric verification) to complete login.

SCAZT Section 2: User and Device Security (Pages 40–43) emphasizes the importance of MFA in protecting identities from password spraying, credential stuffing, and brute-force attacks.

A drive-by compromise occurs when malicious code is automatically downloaded and executed simply by visiting a compromised website—often through malicious advertising scripts (malvertising). According to SCAZT Section 4: Application and Data Security (Pages 85–87), ad blockers help prevent drive-by downloads by blocking these third-party ad scripts and redirections, which are commonly used in such attacks.

VPNs and private browsing modes (e.g., Incognito) do not provide protection against malicious content hosted on web pages.

The Cisco SAFE architecture uses the concept of Secure Domains as foundational blocks. These domains represent areas of the network (e.g., Branch, Data Center, Cloud, Edge) that require specific security controls. Each domain aligns with controls across visibility, segmentation, threat protection, and identity services.

Zero Trust is based on the concept of “never trust, always verify.” It ensures that no user or device is inherently trusted, even if they are inside the corporate network. Cisco’s Zero Trust Architecture implements continuous trust verification for every access request, using identity, device posture, and behavior analysis.

SCAZT Section 1 (Cloud Security Architecture, Pages 13–17) describes how Cisco’s Zero Trust model authenticates and authorizes access before permitting resource interaction.

The error %OPENDNS-3-DNS_RES_FAILURE indicates a failure to resolve DNS queries via Cisco Umbrella. The most common cause of this error is the router lacking DNS resolution capability. To resolve this, the router must be explicitly configured to use Cisco Umbrella’s OpenDNS servers by adding the following to global configuration:

According to the SCAZT guide (Section 1: Cloud Security Architecture, Pages 17–19), Umbrella enforces cloud-based DNS-layer protection, and upstream devices must be properly configured with working DNS name servers to perform redirection and inspection.

Cisco Talos is Cisco’s threat intelligence organization, delivering real-time threat intelligence and malware analytics to help organizations detect and prevent threats before they impact the network. According to the SCAZT guide, Talos provides comprehensive coverage of threat data including signatures, indicators of compromise, and context-driven analytics. This intelligence feeds into Cisco security platforms such as Cisco SecureX and Cisco Secure Endpoint to enhance detection, investigation, and response capabilities. Talos is explicitly referenced in the Threat Response section as the primary source of threat intelligence and malware analytics that supports cloud and endpoint security frameworks.

Cisco Identity Services Engine (ISE) is the central policy engine for posture assessments. As outlined in the SCAZT guide (Section 2: User and Device Security, Pages 39–44), to implement posture assessment and client provisioning correctly, an administrator must create posture policies within Cisco ISE and configure the Network Access Device (NAD)—such as a switch, WLC, or firewall—for redirection. This redirection sends the user to the posture portal, where ISE verifies the Secure Client modules (such as AnyConnect) and enforces compliance with antivirus signatures and OS updates.

ISE evaluates endpoint health based on pre-defined compliance rules and supports automatic remediation via the client provisioning portal. This ensures consistency and policy enforcement across distributed environments.