VMware vDefend Security for VCF 5.x Administrator : 6V0-21.25

6V0-21.25 pass collection

Exam Code: 6V0-21.25

Exam Name: VMware vDefend Security for VCF 5.x Administrator

Updated: Oct 19, 2026

Q & A: 77 Questions and Answers

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About VMware vDefend Security for VCF 5.x Administrator : 6V0-21.25

Choosing study materials should not require faith. ExamCost publishes a free PDF demo of the 6V0-21.25 practice questions — the same quality the full product delivers — so you can verify everything before unlocking the complete 77-question bank for the VMware vDefend Security for VCF 5.x Administrator.

VMware 6V0-21.25 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Logical Switching and Routing15-20%- Logical switches and segments
  • 1. VLAN-based segments
  • 2. Overlay transport zones
- Tier-0 and Tier-1 gateways
  • 1. Gateway high availability
  • 2. Routing policies
Topic 2: Gateway Security15-20%- Edge firewall rules
  • 1. NAT policies
  • 2. VPN configuration
Topic 3: VMware vDefend Security Architecture20-25%- vDefend components and architecture in VCF environment
  • 1. NSX Manager cluster deployment
  • 2. Transport nodes and transport zones
  • 3. vDefend Edge nodes
Topic 4: Distributed Security20-25%- Distributed firewall (DFW)
  • 1. Endpoint group policies
  • 2. Security policy rules
- Service insertion
  • 1. Service chains
  • 2. Partner integration
Topic 5: Identity Firewall and Microsegmentation10-15%- Application rule management
- Active Directory integration
  • 1. Identity-based policies
Topic 6: Monitoring and Troubleshooting10-15%- Log forwarding and syslog
  • 1. Traffic flow monitoring
- Common troubleshooting scenarios
  • 1. Policy enforcement problems
  • 2. Connectivity issues

VMware 6V0-21.25 Exam: Questions Before You Commit

The VMware vDefend Security for VCF 5.x Administrator blueprint is divided into 6 domains, headlined by Logical Switching and Routing (15-20%), Gateway Security (15-20%), and Distributed Security (20-25%). The full weighted outline is in the syllabus section above — our materials are revised against it, and your study hours should follow it too.

The 6V0-21.25 exam packs 68-70 questions into 130-145. That ratio is the hidden exam-within-the-exam: candidates who never practice under time pressure often know the content and still run out of minutes. Use the ExamCost Windows engine or online engine in timed mode, and let pacing become a practiced skill rather than an exam-day surprise.

Delivery first: download immediately after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact our support team. There is no limit on how many computers you can install the software on.

If you sit the 6V0-21.25 exam within 60 days of purchase and do not pass, the ExamCost money back guarantee covers you: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you prefer to keep preparing, exchange the product for two free exam packages of equal value and retain the update service on your original purchase.

You pass the 6V0-21.25 exam at 300 (scaled score), and official registration costs USD $250. Keep in mind the fee covers one attempt only — a retake is billed at full price again. The economical path is to self-test first: drill 77 practice questions at ExamCost in timed mode until your scores clear the passing mark consistently, then register.

Yes — ExamCost offers a free PDF demo of the 6V0-21.25 practice questions, so you can evaluate the expert-designed content and verified answers before paying anything. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.

Recommended: Experience with VMware vSphere and basic networking concepts; VMware Data Center Virtualization certification is beneficial

Vendor rules change periodically, so before booking, confirm the current criteria on the official VMware exam page.

The 6V0-21.25 exam — full name VMware vDefend Security for VCF 5.x Administrator — is VMware's certification exam for professionals working with its technologies; passing it awards the VMware Certified Professional certification, a credential at the Associate / Professional level. It is the kind of vendor-issued proof employers can compare across candidates, which is exactly why it stays in demand. It also leads naturally toward VMware Certified Professional - Network Virtualization (NSX-T), VMware Cloud Foundation Administrator.

VMware vDefend Security for VCF 5.x Administrator Sample Questions:

Question #1

Which of the following make up the Network Detection and Response capabilities of VMware vDefend? (Select all that apply)

  • A. Encryption/Decryption events
  • B. Malware events
  • C. Anomaly events
  • D. Threat detection events
Reveal Solution  Discussion  0

Correct Answer: B,C,D  🗳️

Explanation: Only visible for ExamCost members. You can sign-up / login (it's free).

Question #2

In vDefend Malware Detection and Prevention, when does local file analysis occur?

  • A. After Cloud file analysis and after hash comparison
  • B. Before Cloud file analysis and before hash comparison
  • C. Before Cloud file analysis and after hash comparison
  • D. After Cloud file analysis and before hash comparison
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for ExamCost members. You can sign-up / login (it's free).

Question #3

In a vDefend NDR campaign, "hosts" refers to which of the following?

  • A. VCF nodes
  • B. NSX-prepared cluster hosts
  • C. Workloads
  • D. vSphere hosts
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for ExamCost members. You can sign-up / login (it's free).

Question #4

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?

  • A. Create a time-based firewall policy
  • B. Create a script and use the API to execute the script on a schedule
  • C. Create an URL filter
  • D. Create the rule in the Emergency section of the Distributed Firewall
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for ExamCost members. You can sign-up / login (it's free).

Question #5

What is the recommended Gateway Firewall edge size for production environments?

  • A. Medium
  • B. Small
  • C. Large or X-Large
  • D. Any size
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Explanation: Only visible for ExamCost members. You can sign-up / login (it's free).

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