NVIDIA Certified Professional: AI Networking Practice Questions: Spectrum-X Security Domain

Correct Answer: C

Explanation: Enabling logging and auditing is crucial for maintaining the security of a Spectrum-X network against unauthorized configuration changes, as it allows administrators to track changes, detect suspicious activities, and respond to security incidents. Regularly updating firmware (A) is important for security patches, configuration backups (B) ensure recovery, and spanning tree protocol (D) is for loop prevention.

Correct Answer: B

Explanation: SOC 2 Type II compliance requires comprehensive logging and audit trails. Configuring syslog with centralized logging ensures all network access events are recorded, retained, and available for audit purposes. While SNMP v3 (A) provides secure monitoring, RADIUS (D) handles authentication, and port mirroring (C) enables monitoring, only centralized logging with proper retention meets the audit trail requirements for SOC 2 compliance.

Correct Answer: C

Explanation: Flow-based monitoring with destination analysis is most effective for DLP in high-performance AI environments. This approach analyzes communication patterns, data volumes, and destinations without the performance impact of deep packet inspection. It can detect unusual data flows to unauthorized destinations while maintaining network performance. Bandwidth monitoring (A) lacks specificity, deep packet inspection (B) impacts performance significantly, and external DLP appliances (D) may create bottlenecks in high-throughput AI networks.

Correct Answer: C

Explanation: Access Control Lists (ACLs) are crucial for defining rules that allow or deny traffic based on various criteria, effectively preventing unauthorized devices from accessing the network. Port mirroring is used for traffic analysis, DHCP is for IP address assignment, and SNMP is for network management, not access control.

Correct Answer: B

Explanation: Enabling port security on NVIDIA Spectrum-X switches helps prevent unauthorized access by limiting the number of MAC addresses that can connect to a port. This ensures that only known and authorized devices can access the network through that port. Option A is incorrect because port security does not encrypt data packets. Option C is incorrect as blocking all traffic is not a practical security measure. Option D is incorrect because port security does not involve redirecting traffic to a honeypot.

Correct Answer: B

Explanation: Network segmentation enhances security by isolating sensitive data and systems from general network traffic, reducing the risk of unauthorized access and data breaches. Allowing unrestricted communication (A) and simplifying to a flat network (D) increase security risks, while reducing monitoring (C) can lead to undetected threats.

Correct Answer: B

Explanation: Using SSH with key-based authentication is a best practice for securing management access to NVIDIA Spectrum-X switches. This method provides a secure, encrypted channel for remote management and is more secure than using passwords. Option A, enabling Telnet, is insecure because it transmits data in plaintext. Option C, allowing unrestricted SNMP access, poses a security risk as SNMP can be used to gather network information if not properly secured. Option D is impractical as it would prevent any form of remote management, hindering operational efficiency.

Correct Answer: A

Explanation: GDPR compliance requires ensuring data sovereignty and preventing unauthorized data transfers outside specific geographic regions. Geo-blocking ACLs based on destination IP ranges directly address this requirement by blocking traffic to unauthorized geographic locations based on IP address ranges. While VPN tunnels (B) provide secure communication, encryption (C) protects data in transit, and network segmentation (D) isolates traffic, only geo-blocking ACLs specifically prevent cross-border data transfers required for GDPR compliance.

Correct Answer: B

Explanation: Access Control Lists (ACLs) are essential in a Spectrum-X environment for defining rules that control the flow of network traffic, thereby preventing unauthorized access to sensitive AI workloads. Port Mirroring is used for monitoring traffic, NAT is for translating IP addresses, and DHCP is for assigning IP addresses dynamically, none of which directly prevent unauthorized access.

Correct Answer: B

Explanation: Implementing role-based access control (RBAC) ensures that users have only the necessary permissions for their roles, reducing the risk of unauthorized access. Using SSH for management access provides encrypted communication, enhancing security. Option A is less secure because password-only authentication can be vulnerable to attacks. Option C is incorrect because SNMPv2 lacks strong security features. Option D is impractical as it limits flexibility and does not address access control comprehensively.