Quiz 2026 VMware 6V0-21.25: Unparalleled Certification VMware vDefend Security for VCF 5.x Administrator Sample Questions

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VMware 6V0-21.25 Exam Overview:

Certification Vendor:VMware (Broadcom)
Exam Name:VMware vDefend Security for VCF 5.x Administrator
Exam Number:6V0-21.25
Exam Duration:135 minutes
Passing Score:300 (scaled score, VMware standard passing threshold)
Exam Price:$250 USD (approximate, varies by region)
Real Exam Qty:60-70 (approximate)
Available Languages:English
Certificate Validity Period:2 years
Exam Format:Drag and drop, Multiple choice, Multiple select
Related Certifications:VMware Certified Professional - VMware Cloud Foundation (VCP-VCF)
VMware Certified Professional - Network Virtualization (VCP-NV)
Sample Questions:VMware 6V0-21.25 Sample Questions
Exam Way:Online proctored or authorized test center (Pearson VUE)
Pre Condition:Recommended: VMware Certified Professional (VCP-NV or VCP-VCF) or equivalent VMware NSX / VCF experience

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VMware 6V0-21.25 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Gateway Firewall: Covers edge security devices that control and filter north-south network traffic, blocking unauthorized access at the network perimeter.
Topic 2
  • VMware vDefend Firewall Architecture: Covers the design and components of VMware's software-defined, distributed security architecture.
Topic 3
  • Security Operations: Covers the ongoing management and operational practices for maintaining security in a private cloud environment.
Topic 4
  • Private Cloud Data Center Security: Covers foundational concepts for securing workloads and infrastructure within a private cloud data center environment.
Topic 5
  • Malware Prevention Detection: Covers safeguarding private cloud workloads against ransomware and malicious activity targeting virtualized environments.
Topic 6
  • Role-Based Access Control: Covers creating roles and groups within the security operations team to grant appropriate portal access.
Topic 7
  • IDPS (Intrusion Detection and Prevention System): Covers inspecting network traffic at every hypervisor and workload level to detect and prevent advanced cyber threats.
Topic 8
  • Context Aware Firewall and Identity Firewall: Covers advanced firewall controls that use user identity and application context rather than just IP addresses and ports.
Topic 9
  • Protecting Container Workloads with vDefend Firewall: Covers applying granular, context-based security enforcement to container workloads to enable zero-trust and prevent lateral threats.
Topic 10
  • Planning Application Segmentation with vDefend Security Intelligence: Covers using the distributed analytics engine to analyze workload and network context for developing micro-segmentation policies.
Topic 11
  • Advanced Threat Prevention: Covers a suite of analysis tools designed to defend against both known and unknown advanced attack vectors.
Topic 12
  • Shared Services Platform (SSP): Covers the back-end security data and analytics platform that underpins vDefend security services.
Topic 13
  • Security Automation: Covers integrating tools and scripting to automate firewall policy creation, security group management, and network configuration.
Topic 14
  • Troubleshooting: Covers verifying health status of service instances and security components, and resolving protection and performance issues.
Topic 15
  • VMware vDefend Firewall Management: Covers day-to-day administration and management of the distributed firewall solution for securing virtualized workloads.
Topic 16
  • NTA (Network Traffic Analysis) & NDR (Network Detection and Response): Covers proactive threat detection and response using NTA and NDR capabilities to secure virtualized workloads and environments.

VMware vDefend Security for VCF 5.x Administrator Sample Questions (Q60-Q65):

NEW QUESTION # 60
Which of the following components can enforce Layer 7 Context Firewall Rules? (Select all that apply)

Answer: A,B,D

Explanation:
Layer 7 Context-Aware Firewalling goes beyond traditional Layer 3 (IP Address) and Layer 4 (Port/Protocol) filtering. It involves Deep Packet Inspection (DPI) to identify the actual application (App-ID), URL, or Fully Qualified Domain Name (FQDN) being used (e.g., distinguishing between standard web browsing and an unauthorized file transfer over the same HTTPS port 443).
VMware vDefend is highly versatile and can enforce these advanced Layer 7 context rules across multiple enforcement points in the data center:
Distributed Firewall (DFW) (Option A): Enforces L7 rules directly at the vNIC of the virtual machine. This is ideal for East-West micro-segmentation, stopping a compromised VM from communicating with another VM via an unauthorized application protocol.
Tier-1 Gateway (Option B): Enforces L7 rules at the tenant or application boundary. This is ideal for protecting a specific application zone from other zones within the data center.
Tier-0 Gateway (Option C): Enforces L7 rules at the main edge of the data center. This acts as the primary North-South perimeter firewall, inspecting traffic entering or leaving the physical network.
(Note: VMkernel (VMK) interfaces (Option D) are strictly used by the ESXi hypervisor for management, vMotion, and storage traffic, and are not dataplane enforcement points for guest VM firewall rules).


NEW QUESTION # 61
In a large-scale deployment, how can administrators reduce firewall rule sprawl and improve manageability?
Response:

Answer: D


NEW QUESTION # 62
Which inspection method is used by NSX Malware Prevention to identify zero-day threats?
Response:

Answer: B


NEW QUESTION # 63
You want to create a VMware vDefend Distributed Firewall policy to allow traffic to a specific virtual machine, but only for certain hours of the day. What should you do?

Answer: D

Explanation:
VMware vDefend natively supports Time-Based Firewall Policies (also known as Time Schedules). This feature allows administrators to define specific recurring schedules (e.g., "Monday to Friday, 8:00 AM to 5:00 PM" or a specific weekend backup window).
Once the schedule is created in the system, it can be attached directly to a Distributed Firewall policy section or individual rule. During the active window, the rule is enforced; outside the window, the rule automatically disables itself. This eliminates the need to write custom API scripts (Option C) or manually toggle rules during maintenance windows.


NEW QUESTION # 64
Which two actions should administrators take after receiving a malware detection alert in NSX?
(Choose two)
Response:

Answer: A,D


NEW QUESTION # 65
......

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