2V0-621 · Question #104
What is the compression algorithm used by vSphere Replication to compress data at the source?
The correct answer is A. FastLZ. vSphere Replication uses the FastLZ compression algorithm to compress replication data at the source host before transmitting it to the target site.
Question
What is the compression algorithm used by vSphere Replication to compress data at the source?
Options
- AFastLZ
- BLz4
- CLzr
- DLzx
How the community answered
(30 responses)- A90% (27)
- B7% (2)
- C3% (1)
Why each option
vSphere Replication uses the FastLZ compression algorithm to compress replication data at the source host before transmitting it to the target site.
FastLZ is a lightweight, high-speed LZ-family compression algorithm selected by vSphere Replication for source-side data compression. It is optimized for fast compression speed over maximum compression ratio, minimizing CPU overhead on source hosts while still reducing bandwidth consumption during replication transfers.
Lz4 is a popular high-speed compression algorithm used in other VMware products such as vSAN, but it is not the algorithm specified for vSphere Replication source compression.
Lzr is not a recognized compression algorithm used by vSphere Replication or commonly cited in VMware documentation for this purpose.
Lzx is a compression format associated with Microsoft cabinet files and is not used by vSphere Replication for source-side data compression.
Concept tested: vSphere Replication source-side data compression algorithm
Source: https://docs.vmware.com/en/vSphere-Replication/8.8/com.vmware.vsphere.replication-admin.doc/GUID-B07048D5-4826-4E69-B28F-D3167A3C5B88.html
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