2V0-51.23 · Question #80
Drag and Drop Question Drag and drop the codecs supported by Blast on the left to the appropriate use case on the right. Answer:
The correct answer is JPEG / PNG; H.264; HEVC; Blast Codec. VMware Blast Extreme Codecs - Drag-and-Drop Explained This question tests knowledge of VMware Horizon's Blast Extreme display protocol, which uses different codecs depending on the content type and use case. --- The Arrangement and Why 1. JPEG / PNG Used for still images and loss
Question
Drag and Drop Question Drag and drop the codecs supported by Blast on the left to the appropriate use case on the right. Answer:
Exhibit
Answer Area
Drag items
Correct arrangement
- JPEG / PNG
- H.264
- HEVC
- Blast Codec
Explanation
VMware Blast Extreme Codecs - Drag-and-Drop Explained
This question tests knowledge of VMware Horizon's Blast Extreme display protocol, which uses different codecs depending on the content type and use case.
The Arrangement and Why
1. JPEG / PNG
- Used for still images and lossless/build-to-lossless rendering
- JPEG handles lossy compression for general images; PNG handles lossless pixel-perfect output
- Best suited for: static content, print preview, screen captures
- Common misconception: people assume this is only for photos - it also covers text/UI scenarios where lossless quality is required
2. H.264
- Used for standard video playback and general multimedia
- H.264 is hardware-accelerated on most endpoints, making it efficient for streaming video and high-motion content
- Best suited for: video conferencing, media playback, general-purpose GPU-accelerated delivery
- Common misconception: assuming H.264 is the "best" codec - HEVC surpasses it in efficiency for high-res content
3. HEVC (H.265)
- Used for 4K / high-resolution displays and bandwidth-constrained environments
- Offers ~50% better compression than H.264 at the same quality level
- Best suited for: 4K monitors, high-DPI displays, WAN scenarios with limited bandwidth
- Requires hardware decode support on the endpoint - this is a common exam trap
4. Blast Codec
- VMware's proprietary default codec for general desktop remoting
- Optimized for mixed content: text, UI elements, and graphics together
- Best suited for: everyday desktop tasks - Office apps, web browsing, task worker scenarios
- Common misconception: treating it as a fallback/inferior option - it is actually the primary codec Blast uses by default when no specialized content is detected
Key Takeaway
The progression goes from image fidelity (JPEG/PNG) → standard video (H.264) → high-efficiency video (HEVC) → general desktop (Blast Codec). Each codec is optimized for a specific bandwidth/quality tradeoff, not interchangeable.
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