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2V0-622 · Question #99

Which three parameters should be considered when calculating the bandwidth for vSphere Replication? (Choose three.)

The correct answer is A. Data change rate B. Traffic rates C. Link speed. Bandwidth planning for vSphere Replication depends on data change rate, existing traffic rates on the link, and raw link speed, as these three factors together determine whether the replication RPO can be met.

Section 6 – Administer vSphere 6.5 Availability

Question

Which three parameters should be considered when calculating the bandwidth for vSphere Replication? (Choose three.)

Options

  • AData change rate
  • BTraffic rates
  • CLink speed
  • DApplication type
  • EHardware type

How the community answered

(59 responses)
  • A
    93% (55)
  • D
    2% (1)
  • E
    5% (3)

Why each option

Bandwidth planning for vSphere Replication depends on data change rate, existing traffic rates on the link, and raw link speed, as these three factors together determine whether the replication RPO can be met.

AData change rateCorrect

Data change rate (the rate at which VM disk blocks are modified) directly determines how much data must be transferred per replication cycle, making it the primary driver of bandwidth consumption.

BTraffic ratesCorrect

Existing traffic rates on the WAN or LAN link must be accounted for because vSphere Replication shares network capacity with other workloads, reducing available bandwidth.

CLink speedCorrect

Link speed sets the absolute ceiling on throughput and must be compared against the combined demand of replication traffic and existing traffic to validate that the RPO is achievable.

DApplication type

Application type is not a direct input to bandwidth calculation - what matters is the resulting data change rate the application produces, not the application category itself.

EHardware type

Hardware type (server, storage, NIC model) does not factor into the bandwidth formula for vSphere Replication planning; network throughput capacity is determined by link speed and traffic load.

Concept tested: vSphere Replication bandwidth calculation parameters

Source: https://docs.vmware.com/en/vSphere-Replication/8.8/com.vmware.vsphere.replication-admin.doc/GUID-bandwidth-considerations.html

Topics

#vSphere Replication#bandwidth calculation#data change rate#link speed

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