Exam Name: Associate VMware Data Center Virtualization
Certification Provider: VMware
Corresponding Certification: VMware Data Center Virtualization
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Updated: Nov 04, 2026
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- Total Questions: 105
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- Total Questions: 105
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VMware 1V0-21.20 Exam Overview:
| Certification Vendor: | VMware |
|---|---|
| Exam Name: | Associate VMware Data Center Virtualization |
| Exam Number: | 1V0-21.20 |
| Available Languages: | Japanese, English |
| Exam Price: | $125 USD |
| Exam Duration: | 135 minutes |
| Related Certifications: | VMware Certified Advanced Professional - Data Center Virtualization (VCAP-DCV) VMware Certified Professional - Data Center Virtualization (VCP-DCV) |
| Exam Format: | Single Response, Multiple Response, Multiple Choice |
| Passing Score: | 300 (scaled, range 100–500) |
| Certificate Validity Period: | No expiration |
| Real Exam Qty: | Approximately 51 |
| Recommended Training: | VMware vSphere: Install, Configure, Manage [V7] |
| Exam Registration: | Broadcom Certification Portal Pearson VUE Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored or onsite testing via Pearson VUE |
| Pre Condition: | No mandatory prerequisites; recommended 6 months of hands-on experience with vSphere 6.7 or later |
| Official Syllabus URL: | https://www.broadcom.com/support/education/vmware/certification/vcta-dcv-exam |
VMware 1V0-21.20 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Products and Solutions | 30% | - Use cases for VMware virtualization solutions - Business challenges addressed by vSphere - vSphere 7.x and core solution overview |
| Topic 2: Planning and Designing | 22% | - Network and storage design fundamentals - High availability and disaster recovery planning - Resource allocation and capacity considerations - Virtual machine provisioning guidelines |
| Topic 3: Administrative and Operational Tasks | - Managing inventory objects and permissions - Backup and restore basics - Security policy enforcement | |
| Topic 4: Performance-tuning, Optimization, and Upgrades | 10% | - Monitoring resources via alarms and performance charts - Identifying and resolving performance bottlenecks - vSphere upgrade considerations |
| Topic 5: Troubleshooting and Repairing | - vMotion and HA failure diagnosis - Basic network and storage connectivity issues - Virtual machine startup and configuration problems | |
| Topic 6: Installing, Configuring, and Setup | 26% | - Role-based access control implementation - Enhanced vMotion Compatibility (EVC) configuration - vSphere HA and DRS setup - Standard virtual switch configuration - Datastore creation and configuration - ESXi and vCenter Server deployment |
| Topic 7: Architecture and Technologies | 12% | - Storage protocols and technologies - vSphere components: ESXi, vCenter Server - vMotion, Storage vMotion, HA, DRS features - Virtual machine files, snapshots, clones, templates - Virtualization concepts and hypervisor types - Virtual networking components and types |
1V0-21.20 Exam — Frequently Asked Questions
$125 USD per attempt, 300 (scaled, range 100–500) to pass. Preparation is the cheaper insurance: the 105 practice questions from Prep4away cost far less than a second registration.
The VMware Associate VMware Data Center Virtualization blueprint spans 7 domains — including Performance-tuning, Optimization, and Upgrades (10%), Planning and Designing (22%), Administrative and Operational Tasks. Follow the weightings with your hours; the full outline above details every subtopic.
Yes:
Training builds knowledge; simulation builds readiness. After any course, rehearse with the 105 practice questions for the VMware Associate VMware Data Center Virtualization until the exam atmosphere feels routine.
135 minutes for Approximately 51 questions. Get used to the pressure in advance: the Prep4away online engine recreates the formal test atmosphere on any device, so your pacing is trained before it counts.
Files arrive within a minute of payment by automatic email — no installation limits, and 24/7 customer assisting if nothing shows up within 2 hours (check spam). If you fail the corresponding 1V0-21.20 exam within 60 days of purchase, we reduce your loss two ways: a full refund — send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam, processed within 7 days — or a free change to two other equal-value products if you have another test ahead. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products.
Yes — download the free VMware Associate VMware Data Center Virtualization demo to learn about our products before you buy. Purchases include 365 days of free updates, with each new version emailed to you immediately upon release; renew afterward at 50% off.
No mandatory prerequisites; recommended 6 months of hands-on experience with vSphere 6.7 or later Eligibility rules change over time, so confirm the current requirements on the official page (official 1V0-21.20 exam page) before you register.
The VMware Associate VMware Data Center Virtualization is VMware's certification exam for VMware Certified Technical Associate - Data Center Virtualization (VCTA-DCV), at the Associate level — proof of practical skills that employers recognize. Our material for it is written by IT experts and certified trainers with a wealth of exam experience. Related credentials include VMware Certified Professional - Data Center Virtualization (VCP-DCV), VMware Certified Advanced Professional - Data Center Virtualization (VCAP-DCV).
Book through the vendor's official channels:
The VMware Associate VMware Data Center Virtualization is delivered Online proctored or onsite testing via Pearson VUE — pick the arrangement that fits your schedule.
VMware Associate VMware Data Center Virtualization Sample Questions:
Which feature helps maintain zero data loss when a VM on an ESXi server fails unexpectedly?
- A. Fault Tolerance
- B. vSphere High Availability
- C. vMotion
- D. Storage vMotion
Correct Answer: A 🗳️
Refer to the exhibit:
Which piece of information should a vSphere operator conclude about iSCSI-01?
- A. The datastore usage on disk was reset to green.
- B. The datastore failed because it reached its capacity limit.
- C. The disk usage on the datastore is above 75%.
- D. The datastore does not have any free capacity.
Correct Answer: C 🗳️
An administrator has applied a Service 2 patch after taking a snapshot. The administrator then realizes that a Service 1.5 patch should have been applied before the Service 2 patch.
Refer to the exhibit:
Which series of actions should be taken to manage this issue?
- A. Delete all the snapshots, take a snapshot, and apply Service 1.5 patch.
- B. Remain at Service 2, take a snapshot, and apply Service 1.5 patch.
- C. Revert to Service 1, take a snapshot, and apply Service 1.5 patch.
- D. Delete Service 1, take a snapshot, and apply Service 1.5 patch.
Correct Answer: C 🗳️
A vSphere administrator sees the alarm:
vSphere HA virtual machine failed to failover
This occurred for virtual machines (VMs) in a cluster with vSphere High Availability (HA) enabled. The guest operating system on the VMs did not report a power failure.
What is a possible cause of this event?
- A. A reboot of vCenter Server impacted vSphere HA.
- B. The host is still running but has disconnected from the network.
- C. The VMs cloning operations did not complete.
- D. The VMs encountered an error during migration using vSphere vMotion.
Correct Answer: B 🗳️
Which vSphere DRS setting determines how aggressive vSphete DRS will be when recommending migrations to improve VM happiness?
- A. Predictive DRS
- B. Automation Level
- C. Virtual Machine Automation
- D. Migration Threshold
Correct Answer: D 🗳️
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