ExpertMedium1 markMultiple Choice
AZ-900 · Question 05 · Domain 1.2: Describe Benefits of Cloud Services
An e-commerce website experiences a sudden spike in traffic during a holiday sale. The system automatically adds more virtual machines to handle the load and removes them when traffic decreases. Which cloud benefit does this describe?
An e-commerce website experiences a sudden spike in traffic during a holiday sale. The system automatically adds more virtual machines to handle the load and removes them when traffic decreases. Which cloud benefit does this describe?
Answer options:
A.
High availability
B.
Elasticity
C.
Disaster recovery
D.
Predictability
How to approach this question
Focus on the words 'automatically adds' and 'removes them when traffic decreases'. This dynamic stretching and shrinking is a specific concept.
Full Answer
B.Elasticity✓ Correct
Elasticity
Elasticity is the ability of a cloud environment to automatically add or remove resources to match the current demand. Scalability is the general ability to increase resources, but elasticity specifically implies the automated, dynamic nature of scaling in and out.
Common mistakes
Choosing High Availability. While related, HA is about uptime during faults, whereas Elasticity is about handling varying load efficiently.
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