Actualkey Prepration Latest 6V0-21.25 : VMware vDefend Security for VCF 5.x Administrator Exam Questions and Answers PDF's, Verified Answers via Experts - Pass Your Exam For Sure and instant Downloads - "Money Back Guarantee".
| Vendor | VMware |
| Certification | VMware Certified Professional |
| Exam Code | 6V0-21.25 |
| Title | VMware vDefend Security for VCF 5.x Administrator Exam |
| No Of Questions | 75 |
| Last Updated | May 7,2026 |
| Product Type | Q & A with Explanation |
| Bundel Pack Included | PDF + Offline / Andriod Testing Engine and Simulator |
Prepare for the 6V0-21.25 VMware vDefend Security for VCF 5.x Administrator Exam with actualkey.com
Are you looking to advance your VMware skills and secure your career with the VMware vDefend Security for VCF 5.x Administrator certification? actualkey.com offers top-quality training resources, exam dumps, and practice tests designed to help you succeed in the 6V0-21.25 exam. This guide provides a comprehensive overview of the exam topics, requirements, and key details to help you prepare effectively.
Topics Covered in the 6V0-21.25 VMware vDefend Security for VCF 5.x Exam
The 6V0-21.25 exam tests your knowledge and skills in deploying and managing VMware vDefend Security within a VMware Cloud Foundation (VCF) 5.x environment. Core topics include:
VMware vDefend Architecture and Components: Understanding the overall architecture, key components, and deployment models of VMware vDefend Security.
Security Policies and Configuration: Configuring security policies, roles, and permissions aligned with organizational requirements.
Threat Detection and Prevention: Implementing security measures for threat detection, intrusion prevention, and risk mitigation.
Integration with VMware VCF 5.x: Seamless integration of vDefend Security with VMware Cloud Foundation environments.
Monitoring and Reporting: Utilizing VMware tools for continuous security monitoring, logging, and compliance reporting.
Troubleshooting and Maintenance: Diagnosing common issues, performing updates, and maintaining security configurations.
Exam Requirements and Details
Prerequisites:
While there are no strict prerequisites, it is highly recommended that candidates have a foundational understanding of VMware Cloud Foundation, basic networking, and security concepts.
Exam Format:
Multiple-choice questions
Practical scenario-based questions
Total questions: Approximately 60-70
Duration: 90 minutes
Passing score: 300 out of 500 points
Exam Cost: The registration fee for the 6V0-21.25 exam is typically $250 USD, but it may vary based on location and testing centers.
Preparation Tips:
Use actualkey.com’s comprehensive training courses and exam dumps tailored for the VMware vDefend Security exam.
Practice with simulated tests to familiarize yourself with the question format.
Review the official VMware documentation and security best practices.
Gain hands-on experience with VMware vDefend Security deployment and management.
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actualkey.com provides industry-leading exam dumps, detailed study guides, and practice questions specifically designed for the 6V0-21.25 VMware vDefend Security for VCF 5.x Administrator Exam. Our resources are regularly updated to reflect the latest exam trends, ensuring you are well-prepared to pass on your first attempt.
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Question: 1
The VMware vDefend Management cluster is deployed by default with how many nodes?
A. One
B. Two
C. Three
D. Four
Answer: C
Explanation:
VMware vDefend (formerly NSX) architecture utilizes a Management Plane that is highly available.
For production environments, the NSX Management cluster is deployed with exactly three nodes.
This ensures high availability (HA) and fault tolerance for the management and control planes. If one
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node fails, the cluster maintains quorum and operations continue uninterrupted. While a single node
can be deployed for lab or proof-of-concept environments, the default standard for a highly available
production cluster is three nodes.
Question: 2
What would best describe DGA activity?
A. Trying to connect to randomly generated domains to obfuscate C2 traffic
B. Intercepting packets to steal sensitive data
C. Logging keystrokes to capture user credentials
D. Exploiting vulnerabilities in web applications through SQL injection
Answer: A
Explanation:
DGA stands for Domain Generation Algorithm. It is a technique used by malware (such as
ransomware or botnets) to periodically generate a large number of domain names that serve as
rendezvous points with their Command and Control (C2) servers. By rapidly changing the domains
they attempt to connect to, attackers obfuscate their traffic and make it highly difficult for static
blocklists or basic firewall rules to stop the communication. VMware vDefend's Network Traffic
Analysis (NTA) features specific detectors to identify this anomalous DNS behavior associated with DGA.
Question: 3
Which of the following does the Applied To field impact?
A. Per VM vNIC rule count
B. System wide rule count
C. ESX host rule count
D. NSX Manager rule count
Answer: A
Explanation:
In the VMware vDefend Distributed Firewall (DFW), the "Applied To" field is a critical optimization
feature. By default, DFW rules are applied to all workloads (Applied To: DFW). However, when you
specify specific groups in the "Applied To" field, the rule is only pushed down to the specific vNICs of
the virtual machines residing in those groups. This drastically reduces the size of the rule table
maintained in memory on the ESXi host for each specific vNIC (the per VM vNIC rule count),
improving hypervisor performance and ensuring that workloads only process rules relevant to their
network traffic.
Question: 4
Which of the following are optional CNI Plugin functionalities? (Select all that apply)
A. East-West service load balancing
B. Pod network connectivity
C. NetworkPolicy enforcement
D. IP address management (IPAM)
Answer: A, C, D
Explanation:
When integrating container orchestration (like Kubernetes) with VMware vDefend, a Container
Network Interface (CNI) plugin (such as Antrea) is utilized. The fundamental, non-optional
requirement of a CNI is providing basic pod network connectivity (Option B). However, advanced
features like East-West service load balancing (kube-proxy replacement), enforcing Kubernetes
NetworkPolicies (security), and handling IP Address Management (IPAM) are considered optional or
configurable functionalities depending on the specific CNI implementation and how the cluster is
architected to integrate with vDefend.
Question: 5
Which of the following are vDefend Advanced Threat Prevention capabilities? (Select all that apply)
A. Intrusion Detection/Protection Systems (IDS/IPS)
B. Network Traffic Analysis (NTA)
C. Gateway Firewall
D. Network Detection and Response (NDR)
E. Malware Analysis/Sandboxing
Answer: A, B, D, E
Explanation:
VMware vDefend Advanced Threat Prevention (ATP) is a suite of security features designed to move
beyond traditional L4-L7 stateful firewalling. It specifically encompasses advanced inspection and
anomaly detection tools. These include Distributed and Gateway IDS/IPS (signature-based threat
detection), Network Traffic Analysis (NTA - behavioral anomaly detection), Network Detection and
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