Lab C2: Mock VCDX Defense — 75-Minute Timed Session

VCF 9.0Intermediatevcdx-distinguished⏱ 90 min

Objectives

Simulate the full VCDX Distinguished Expert defense against a panel.

Prerequisites

VCF lab environment deployed and operational

Lab Environment

Standard VCF lab environment for VCDX Defense Preparation

Tasks

Task 1 Lab C2: Mock VCDX Defense — 75-Minute Timed Session

Simulate the full VCDX Distinguished Expert defense against a panel.

Step 1

Recruit 2 peers as panelists; share your design doc 24h before.

Step 2

Run 75-minute defense: 15min present, 45min panel Q&A, 15min design scenario.

Step 3

Record video for self-review.

Step 4

Answer at least 20 design-probing questions with rationale and alternatives.

Step 5

Score yourself against VCDX rubric: clarity, technical depth, design thinking, defense ability.

Step 6

Iterate: redo weak areas and run a second defense within 72 hours.

Validation Gate

Check: Verify lab completion

Expected: Lab exercise completed successfully

Common Errors

Presentation exceeding 15-minute time limit

Fix: Defense format: 15 minutes presentation + 45 minutes Q&A + 15 minutes design scenario (some formats: 75 min total). Going over the 15-minute presentation limit cuts into Q&A time — panelists will interrupt. Practice with a timer. Cover: business context, key requirements, architecture overview, top 5 design decisions. Details come in Q&A.

Presenting technology features instead of design rationale

Fix: BAD: 'vSAN supports RAID-1 and RAID-5 erasure coding.' GOOD: 'I chose RAID-1 for clinical workloads because the EHR vendor requires mirrored storage (REQ-003), and the 40% read performance advantage justifies the 2× capacity cost for this 80%-read workload profile.' Present YOUR reasoning for YOUR customer.

Not preparing for 'I don't know' scenarios

Fix: Panelists will ask questions you can't answer — this is intentional. The test is your response: 'I don't know off the top of my head, but here is how I would investigate: check the VMware Compatibility Guide for that specific hardware model, validate in our Holodeck lab, and consult with the Broadcom field team.' Never guess.

Final Validation

Lab completed successfully

✓ All steps completed → No errors observed

Cleanup / Restore

• Revert to snapshot if needed

Design Reflection (VCDX)

The mock defense is your most important preparation activity. Practice the 15-minute presentation until you can deliver it without notes and within time. Practice answering unexpected questions with the RCAR-trace-back methodology.

⚠ Known Pitfalls (from Community KB)

Spending 15 minutes on slides about 'VCF overview' — panelists know VCF. Spend 15 minutes on YOUR design decisions.

Guessing when you don't know the answer — 'I don't know but here is how I would find out' scores higher than a wrong guess.

Mark complete