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What is the primary benefit of scaling in cloud computing?
a. It allows dynamic resource adjustment according to demand
b. It restricts resources to fixed capacities
c. It reduces workload distribution
d. It disables application monitoring
Answer: a. It allows dynamic resource adjustment according to demandspot+2
Which of the following best describes horizontal scaling?
a. Adding more instances or servers to distribute the workload
b. Adding more power (CPU, RAM) to a single server
c. Migrating resources to another cloud provider
d. Compressing data for better efficiency
Answer: a. Adding more instances or servers to distribute the workloadcouchbase+2
Vertical scaling in cloud computing refers to:
a. Increasing hardware capability of a single server
b. Increasing the number of servers
c. Relocating data geographically
d. Using serverless architectures
Answer: a. Increasing hardware capability of a single serveroneadvanced+3
What is diagonal scaling?
a. A hybrid of both vertical and horizontal scaling
b. Only vertical scaling
c. Only horizontal scaling
d. Scaling done automatically without user intervention
Answer: a. A hybrid of both vertical and horizontal scalingnops+3
Which approach allows automatic adjustment of resources based on real-time demand?
a. Auto-scaling
b. Static scaling
c. Region-based scaling
d. User-triggered scaling
Answer: a. Auto-scalingoneadvanced+1
What advantage does horizontal scaling offer over vertical scaling?
a. Greater scalability and improved fault tolerance
b. Reduced network latency
c. Simpler infrastructure management
d. Lower physical hardware cost only
Answer: a. Greater scalability and improved fault tolerancemega+2
In cloud computing, what is elasticity?
a. The ability to automatically scale resources up or down
b. The immutability of resources
c. Resource isolation between tenants
d. Permanent allocation of resources to services
Answer: a. The ability to automatically scale resources up or downprosperops+2
Which is a potential drawback of vertical scaling?
a. Physical hardware limitations
b. Application-level complexity
c. Increased network segmentation
d. Lack of performance gains
Answer: a. Physical hardware limitationsgeeksforgeeks+2
What does cloud bursting mean?
a. Temporarily utilizing external cloud resources to handle spikes in workload
b. Deleting unused resources after a peak
c. Scaling within the same on-premises infrastructure
d. Encrypting cloud storage data
Answer: a. Temporarily utilizing external cloud resources to handle spikes in workloadtestbook+1
Which scaling strategy is best suited for rapidly growing web services handling millions of users?
a. Horizontal scaling
b. Manual scaling
c. Vertical scaling
d. Delay scaling
Answer: a. Horizontal scalingcouchbase+3
What impact does auto-scaling have on cloud computing costs?
a. Optimizes costs by provisioning resources only as needed
b. Increases fixed costs regardless of usage
c. Always results in higher bills
d. Prevents resource availability
Answer: a. Optimizes costs by provisioning resources only as needednops+2
Which of the following cloud providers supports auto-scaling features?
a. AWS
b. Microsoft Azure
c. Google Cloud Platform
d. All of the above
Answer: d. All of the aboveinterviewkickstart+1
When is vertical scaling preferable over horizontal scaling?
a. When application architecture cannot be distributed across multiple nodes
b. When there are unlimited budgets
c. In stateless distributed systems
d. When minimizing single points of failure
Answer: a. When application architecture cannot be distributed across multiple nodescloudzero+2
What is a common risk of horizontal scaling?
a. Application must be designed for distributed execution
b. Single points of hardware failure
c. Strict resource caps
d. Static network addressing
Answer: a. Application must be designed for distributed executioncloudzero+2
Which term refers to scaling resources in multiple geographic locations?
a. Geographic scaling
b. Vertical scaling
c. Hybrid scaling
d. Redundant scaling
Answer: a. Geographic scalingmega
A sudden, temporary increase in e-commerce traffic is best handled by which scaling solution?
a. Auto-scaling or cloud bursting
b. Manual vertical scaling
c. Scheduled downtime
d. Permanent hardware procurement
Answer: a. Auto-scaling or cloud burstingtestbook+1
What is the main advantage of using automated scaling policies?
a. Reduced need for manual intervention
b. Increased downtime
c. Increased vendor lock-in
d. Fixed usage costs
Answer: a. Reduced need for manual interventionprosperops+1
What should be considered before implementing vertical scaling in the cloud?
a. Hardware upgrade limits and downtime risk
b. Data sovereignty
c. Compliance regulations only
d. Hardware recycling options
Answer: a. Hardware upgrade limits and downtime riskgeeksforgeeks+1
Which type of workload is best suited for horizontal scaling?
a. Stateless web applications
b. Monolithic desktop apps
c. Single-threaded database systems
d. Offline legacy programs
Answer: a. Stateless web applicationsoneadvanced+2
Which metric is commonly monitored to trigger cloud auto-scaling?
a. CPU utilization
b. Screen resolution
c. Syntax errors
d. Character encoding
Answer: a. CPU utilizationcouchbase+2
Which is not an advantage of cloud scalability?
a. Fixed resource allocation
b. Improved flexibility
c. Support for dynamic workloads
d. Higher application availability
Answer: a. Fixed resource allocationhpe+2
What is required for an application to benefit from cloud horizontal scaling?
a. Application design supporting distributed architecture
b. Proprietary software only
c. Centralized database without replication
d. Data encryption before scaling
Answer: a. Application design supporting distributed architecturenops+2
Which of the following statements is true about scaling in hybrid clouds?
a. Both on-premises and public cloud resources can be scaled to match workloads
b. Scaling requires application redeployment only
c. Scalability is restricted to private cloud only
d. Auto-scaling is impossible
Answer: a. Both on-premises and public cloud resources can be scaled to match workloadsoneadvanced+1
Why is cloud scaling significant for disaster recovery strategies?
a. Enables rapid resource allocation for failover systems
b. Inhibits fast recovery times
c. Essential only for on-premises systems
d. Irrelevant to recovery plans
Answer: a. Enables rapid resource allocation for failover systemsspot+1
How does diagonal scaling help organizations?
a. Provides flexibility to mix server upgrades and server additions
b. Restricts scalability options
c. Eliminates the need for horizontal scaling
d. Only upgrades memory modules
Answer: a. Provides flexibility to mix server upgrades and server additionsmega+2
What kind of downtime risk is associated with vertical scaling?
a. Upgrading might require rebooting or stopping the machine
b. Applications run uninterrupted always
c. Increased network partitions
d. Data loss is guaranteed
Answer: a. Upgrading might require rebooting or stopping the machinegeeksforgeeks+2
What is scaling down?
a. Reducing resources allocated to adapt to lower demand
b. Adding additional servers preemptively
c. Increasing code complexity
d. Migrating to the cloud
Answer: a. Reducing resources allocated to adapt to lower demandprosperops+2
Which of these is a benefit of using cloud auto-scaling?
a. Improved cost efficiency
b. Permanent over-provisioning
c. Manual server upgrades only
d. Fixed usage regardless of load
Answer: a. Improved cost efficiencyprosperops+1
What role does a load balancer play in horizontal scaling?
a. Distributes incoming traffic across multiple servers
b. Increases RAM on a single server
c. Encrypts user data
d. Restricts scaling
Answer: a. Distributes incoming traffic across multiple serversinterviewkickstart+2
Which scenario does not typically require elastic scaling?
a. Consistent and predictable workloads
b. Spiky e-commerce traffic
c. Rapidly growing social media platforms
d. Batch data processing jobs
Answer: a. Consistent and predictable workloadsmega+1
What action can auto-scaling groups automatically perform during a surge in demand?
a. Provision and deprovision servers as needed
b. Permanently allocate all resources
c. Fix IP addresses only
d. Replace all servers simultaneously
Answer: a. Provision and deprovision servers as neededoneadvanced+1
Which is a limitation of horizontal scaling?
a. Complex application design and orchestration
b. Limited server capacity
c. No improvement in availability
d. Mandatory manual upgrades
Answer: a. Complex application design and orchestrationcloudzero+2
For which type of applications is vertical scaling most efficient?
a. Monolithic applications with high processing needs
b. Stateless APIs
c. Massively parallel microservices
d. Distributed containers
Answer: a. Monolithic applications with high processing needsgeeksforgeeks+2
Cloud elasticity is crucial for which business model?
a. On-demand services with unpredictable loads
b. Traditional fixed office IT
c. Offline-only applications
d. Inventory tracking only
Answer: a. On-demand services with unpredictable loadsgtu-mcq+2
What is the key difference between scalability and elasticity?
a. Scalability adds resources; elasticity auto-adjusts resources based on usage patterns
b. Both mean the same
c. Elasticity means only vertical scaling
d. Scalability reduces flexibility
Answer: a. Scalability adds resources; elasticity auto-adjusts resources based on usage patternsgeeksforgeeks+2
What service does AWS provide for horizontal and vertical scaling?
a. EC2 Auto Scaling
b. S3
c. CloudFront only
d. Lambda@Edge only
Answer: a. EC2 Auto Scalinginterviewkickstart+1
What is a key metric to decide when to scale up or down in cloud environments?
a. CPU/memory/network thresholds
b. User interface aesthetics
c. Application error logs only
d. Time zone settings
Answer: a. CPU/memory/network thresholdscouchbase+2
The main reason businesses adopt cloud scalability is to:
a. Meet demand without overprovisioning or underprovisioning resources
b. Maintain fixed operational sizes
c. Prohibit scaling operations
d. Limit application distribution
Answer: a. Meet demand without overprovisioning or underprovisioning resourceshpe+2
Which type of cloud scaling enables seamless failover in a multi-region deployment?
a. Geographic scaling with auto-scaling groups
b. Vertical scaling only
c. Centralized resource scaling
d. Database partitioning only
Answer: a. Geographic scaling with auto-scaling groupsmega
When is manual scaling preferred?
a. When workloads are highly predictable and static
b. During exponential user growth
c. For handling real-time analytics spikes
d. For sudden, unexpected demand
Answer: a. When workloads are highly predictable and staticprosperops+1
What is an implication of frequent scaling operations?
a. Need for robust monitoring and orchestration
b. Reduced automation requirements
c. Enforced manual intervention only
d. Declining fault tolerance
Answer: a. Need for robust monitoring and orchestrationnops+1
What is the role of container orchestration platforms in scaling?
a. Automates scaling, deployment, and management of containerized workloads
b. Prevents scaling in distributed environments
c. Deletes data on scale events
d. Only works for monolithic apps
Answer: a. Automates scaling, deployment, and management of containerized workloadsgeeksforgeeks+1
How does scaling affect application availability?
a. Increases redundancy and reduces downtime
b. Decreases system uptime
c. Always requires offline migration
d. Makes applications susceptible to single points of failure
Answer: a. Increases redundancy and reduces downtimecouchbase+2
Which scaling method usually involves the least change to application code?
a. Vertical scaling
b. Horizontal scaling
c. Diagonal scaling
d. Geographic scaling
Answer: a. Vertical scalingcouchbase+1
In which scenario is scaling out challenging without application redesign?
a. When applications are tightly coupled and stateful
b. With stateless microservices
c. In containerized environments
d. In lambda functions
Answer: a. When applications are tightly coupled and statefulcloudzero+1
What is the principle behind pay-as-you-go cloud scaling?
a. Billing is based on actual usage, not fixed capacity
b. Monthly fixed fees regardless of usage
c. Licensing based on max usage only
d. Advance payment for total capacity only
Answer: a. Billing is based on actual usage, not fixed capacityhpe+2
Which platform offers native tools for auto-scaling?
a. AWS, Google Cloud, Azure, IBM Cloud
b. Only AWS
c. Only Azure
d. Only Google Cloud
Answer: a. AWS, Google Cloud, Azure, IBM Cloudinterviewkickstart+2
What potential challenge does auto-scaling introduce?
a. Application must be able to handle nodes being added or removed dynamically
b. Zero monitoring needed
c. Guaranteed uninterrupted scaling
d. No need for architecture planning
Answer: a. Application must be able to handle nodes being added or removed dynamicallynops+2
Which deployment is most cost-effective for variable workloads?
a. Auto-scaling in the public cloud
b. Dedicated fixed-capacity servers
c. Exclusive private cloud scaling only
d. Mainframe computing
Answer: a. Auto-scaling in the public cloudoneadvanced+1
How does scaling support business agility?
a. Enables rapid adaptation to market or workload changes
b. Locks processes into long-term rigid patterns
c. Prevents fast deployments
d. Requires static planning only
Answer: a. Enables rapid adaptation to market or workload changesprosperops+1

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