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1. Vertical scaling in cloud computing refers to which of the following?
   a. Adding more resources to an existing server
   b. Adding more servers
   c. Removing resources from all nodes
   d. Distributing load among multiple servers
   Answer: a. Adding more resources to an existing servercloudzero+2
2. Which of the following is a primary advantage of vertical scaling?
   a. No application downtime
   b. No cost involved
   c. Easier management of a single system
   d. Infinite scalability
   Answer: c. Easier management of a single systemgeeksforgeeks+2
3. What is a limitation of vertical scaling in cloud environments?
   a. Complexity
   b. Requires distributed software
   c. Physical limit of resources on a single machine
   d. No single point of failure
   Answer: c. Physical limit of resources on a single machinenops+2
4. Vertical scaling is also known as:
   a. Scaling out
   b. Scaling down
   c. Scaling up
   d. Scaling in
   Answer: c. Scaling upgeeksforgeeks+1
5. Which scenario best fits vertical scaling?
   a. A cloud application that frequently needs more servers
   b. A database that requires more RAM and CPU
   c. A peer-to-peer file system expansion
   d. Load balancing between nodes
   Answer: b. A database that requires more RAM and CPUdigitalocean+2
6. Which cloud computing resource is typically NOT addressed by vertical scaling?
   a. CPU
   b. Memory
   c. Storage
   d. Network bandwidth
   Answer: d. Network bandwidthcloudzero+1
7. When is vertical scaling preferable over horizontal scaling?
   a. When applications are monolithic
   b. When stateless workloads are present
   c. For microservices architectures
   d. When unlimited scalability is needed
   Answer: a. When applications are monolithicgeeksforgeeks+2
8. What type of downtime risk is associated with vertical scaling?
   a. Zero downtime
   b. Reduced risk
   c. Downtime during resource upgrades
   d. Increased performance
   Answer: c. Downtime during resource upgradescloudzero+1
9. Which cloud service model supports vertical scaling?
   a. SaaS
   b. IaaS
   c. PaaS
   d. All of the above
   Answer: d. All of the abovedigitalocean+1
10. What is a major drawback of relying solely on vertical scaling?
    a. Too much flexibility
    b. Single point of failure
    c. Excessive resource redundancy
    d. High operational complexity
    Answer: b. Single point of failurenops+2
11. Upgrading a virtual machine instance to a higher spec in AWS or Azure is an example of:
    a. Horizontal scaling
    b. Vertical scaling
    c. Load balancing
    d. Storage expansion
    Answer: b. Vertical scalinggeeksforgeeks+2
12. Which of the following is NOT typically improved by vertical scaling?
    a. Computing speed
    b. Fault tolerance
    c. Memory capacity
    d. Processing power
    Answer: b. Fault tolerancecloudzero+1
13. Vertical scaling is usually best for which type of applications?
    a. Distributed systems
    b. Monolithic legacy systems
    c. Event-driven serverless
    d. Stateless microservices
    Answer: b. Monolithic legacy systemsdigitalocean+1
14. A VM migration to a more powerful host without increasing VM count exemplifies:
    a. Horizontal scaling
    b. Vertical scaling
    c. Auto-scaling
    d. Load balancing
    Answer: b. Vertical scalingdigitalocean+1
15. Which describes the simplicity of vertical scaling?
    a. Requires orchestration tools
    b. Complex data synchronization
    c. Increases machine specs with fewer changes
    d. Needs many nodes
    Answer: c. Increases machine specs with fewer changescloudzero+1
16. At what point does vertical scaling become ineffective?
    a. When new regions are needed
    b. When a server’s maximum hardware is reached
    c. When cost drops
    d. When serverless deployed
    Answer: b. When a server’s maximum hardware is reachednops+2
17. What usually happens to cost with continuous vertical scaling?
    a. Cost decreases
    b. Cost increases after certain hardware level
    c. Cost remains static
    d. Cost is always optimal
    Answer: b. Cost increases after certain hardware leveldigitalocean+1
18. Which scaling type needs no changes to application logic?
    a. Horizontal
    b. Vertical
    c. Diagonal
    d. Functional scaling
    Answer: b. Verticalcloudzero+1
19. Vertical scaling can be quickly achieved using:
    a. Load balancing services
    b. Add-on modules
    c. Changing the VM type
    d. Adding new nodes
    Answer: c. Changing the VM typegeeksforgeeks+1
20. What failure impact is associated with vertical scaling?
    a. Partial service loss
    b. Full service outage if failure occurs
    c. Zero data loss
    d. Multiple fallback paths
    Answer: b. Full service outage if failure occursnops+2
21. Which is the correct statement for vertical scaling in terms of physical resources?
    a. Adds nodes
    b. Adds CPU, RAM, or storage to one node
    c. Migrates resources
    d. Removes nodes
    Answer: b. Adds CPU, RAM, or storage to one nodegeeksforgeeks+2
22. The process of moving from a medium-sized instance to a large instance on Google Cloud is:
    a. Horizontal scaling
    b. Vertical scaling
    c. Auto sharding
    d. Load balancing
    Answer: b. Vertical scalingdigitalocean+1
23. Which is a suitable use case for vertical scaling?
    a. Auto-healing clusters
    b. Stateful workloads needing fast upgrades
    c. Edge computing
    d. Content delivery networks
    Answer: b. Stateful workloads needing fast upgradescloudzero+1
24. Why does vertical scaling have a limited ceiling in terms of scalability?
    a. Physical limits of hardware
    b. Licensing restrictions
    c. API rate throttling
    d. Network bandwidth saturation
    Answer: a. Physical limits of hardwaregeeksforgeeks+1
25. A single database server moving from 16GB to 64GB RAM is:
    a. Horizontal scaling
    b. Vertical scaling
    c. Serverless scaling
    d. Dynamic sharding
    Answer: b. Vertical scalinggeeksforgeeks+1
26. Which of these is a cost characteristic of vertical scaling?
    a. Cheaper for small workloads
    b. Cheaper at larger scales
    c. No impact on cost
    d. Cost always predictable
    Answer: a. Cheaper for small workloadsdigitalocean+1
27. If an app reaches its vertical scaling limit, what is usually the next solution?
    a. Remove features
    b. Scale horizontally
    c. Change provider
    d. Add more users
    Answer: b. Scale horizontallycloudzero+1
28. Which technology trend allows VMs to scale vertically in seconds?
    a. Bare-metal provisioning
    b. Hypervisors
    c. SSH key exchange
    d. Hardware overlays
    Answer: b. Hypervisorsdigitalocean+1
29. Running more daemons on the same machine instance is an example of:
    a. Horizontal scaling
    b. Vertical scaling
    c. Diagonal scaling
    d. No scaling
    Answer: b. Vertical scalingsanfoundry+1
30. Which factor is NOT impacted by vertical scaling?
    a. Application availability
    b. Resource bottleneck
    c. Single point failure
    d. Distributed network latency
    Answer: d. Distributed network latencygeeksforgeeks+1
31. What is a common disadvantage of vertical scaling?
    a. No downtime
    b. Complex configuration
    c. Hardware failure leads to major downtime
    d. Multiple nodes needed
    Answer: c. Hardware failure leads to major downtimenops+2
32. What is the maximum system limit for vertical scaling generally called?
    a. Hard limit
    b. Soft quota
    c. Dynamic limit
    d. Scaling peak
    Answer: a. Hard limitnops+1
33. Which benefit applies specifically to vertical scaling in cloud?
    a. Achieves quick upgrades for critical apps
    b. Enables distributed processing
    c. Encourages microservice design
    d. Always reduces cost
    Answer: a. Achieves quick upgrades for critical appscloudzero+1
34. In vertical scaling, why is software configuration often unchanged?
    a. Additional CPU and RAM automatically recognized by OS
    b. Manual OS reinstallation
    c. Data migration required
    d. Cluster configuration mandatory
    Answer: a. Additional CPU and RAM automatically recognized by OSdigitalocean+1
35. Which scaling strategy is often required if constant uptime and no single point of failure are priorities?
    a. Only vertical scaling
    b. Only functional scaling
    c. Horizontal or hybrid scaling
    d. Manual data partitioning
    Answer: c. Horizontal or hybrid scalingnops+2
36. What is a hybrid of vertical and horizontal scaling?
    a. Linear scaling
    b. Diagonal scaling
    c. Sharding
    d. Round robin scaling
    Answer: b. Diagonal scalingcloudzero
37. Vertical scaling typically delays which kind of complexity?
    a. Load balancing
    b. Node orchestration
    c. Distributed state management
    d. All of the above
    Answer: d. All of the abovegeeksforgeeks+1
38. For which type of application is vertical scaling often least appropriate?
    a. Monolithic ERP
    b. High availability multi-site SaaS
    c. Non-critical single workloads
    d. Local desktop applications
    Answer: b. High availability multi-site SaaSgeeksforgeeks+2
39. The act of increasing VM storage from 400GB to 1TB is:
    a. Network scaling
    b. Vertical scaling
    c. Platform scaling
    d. None of the above
    Answer: b. Vertical scalingcloudzero+1
40. If a cloud workload outgrows vertical scaling capabilities, it will likely need:
    a. Fewer resources
    b. Horizontal scaling
    c. Code refactoring
    d. Reduced user base
    Answer: b. Horizontal scalingdigitalocean+1
41. A major bottleneck of exclusive vertical scaling in large cloud applications is:
    a. Cost efficiency
    b. Single resource boundary
    c. Location flexibility
    d. Complex networking
    Answer: b. Single resource boundarygeeksforgeeks+2
42. What benefit does vertical scaling provide for migrating legacy applications to cloud?
    a. Requires microservices
    b. Enables no-code upgrades
    c. Minimizes code refactoring
    d. Forces new architecture
    Answer: c. Minimizes code refactoringcloudzero+1
43. Which scaling approach increases RAM, CPU, and disk space in an existing cloud VM?
    a. Vertical scaling
    b. Horizontal scaling
    c. Mixed scaling
    d. Functional scaling
    Answer: a. Vertical scalingdigitalocean+2
44. Why is vertical scaling not truly elastic?
    a. Requires downtime and reboots
    b. Can scale indefinitely
    c. Supports auto-scale groups
    d. Changes resource pools dynamically
    Answer: a. Requires downtime and rebootsgeeksforgeeks+1
45. In what scenario does vertical scaling not help?
    a. Upgrading single-node performance
    b. Distributing application across multiple geographies
    c. Increasing database cache size
    d. Improving CPU-hungry workloads
    Answer: b. Distributing application across multiple geographiesdigitalocean+2
46. Which cloud vendor supports vertical scaling of their VM offerings?
    a. AWS
    b. Azure
    c. Google Cloud
    d. All of the above
    Answer: d. All of the abovecloudzero+1
47. What is the process of reducing resources (CPU, RAM) in a single VM called?
    a. Scale-in
    b. Scale-up
    c. Scale-down
    d. Horizontal scaling
    Answer: c. Scale-downgeeksforgeeks+1
48. Vertical scaling’s ease of use is primarily due to:
    a. Prebuilt multi-node architecture
    b. Single-system upgrades with little configuration
    c. Constant cloud monitoring
    d. Built-in distributed caching
    Answer: b. Single-system upgrades with little configurationdigitalocean+1
49. Which scaling is described as “increasing the power of an individual machine”?
    a. Functional scaling
    b. Vertical scaling
    c. Network scaling
    d. Horizontal scaling
    Answer: b. Vertical scalingcloudzero+2
50. What is a core risk with high levels of vertical scaling?
    a. Easier backup
    b. Lower energy use
    c. Hardware failure impacts all workloads
    d. No resource bottleneck
    Answer: c. Hardware failure impacts all workloadsnops+2

1. https://www.cloudzero.com/blog/horizontal-vs-vertical-scaling/
2. https://www.geeksforgeeks.org/system-design/system-design-horizontal-and-vertical-scaling/
3. https://www.digitalocean.com/resources/articles/horizontal-scaling-vs-vertical-scaling
4. https://www.nops.io/blog/horizontal-vs-vertical-scaling/
5. https://www.geeksforgeeks.org/cloud-computing/scalability-and-elasticity-in-cloud-computing/
6. https://www.sanfoundry.com/cloud-computing-questions-answers-network-capacity/
7. https://www.placementpreparation.io/mcq/cloud-computing/
8. https://www.scribd.com/document/777662319/Cloud-Computing-MCQ-Quiz1
9. https://www.sanfoundry.com/1000-cloud-computing-questions-answers/
10. https://www.placementpreparation.io/mcq/cloud-computing/page/4/
11. https://www.cloudkeeper.com/insights/blog/horizontal-vs-vertical-scaling
12. https://www.scribd.com/document/918576922/Cloud-Computing-Mcq-Questions-All-5-Units
13. https://interviewkickstart.com/blogs/interview-questions/cloud-computing-mcqs-it-professionals
14. https://www.placementpreparation.io/mcq/cloud-computing/page/2/
15. https://www.examveda.com/computer-science/practice-mcq-question-on-cloud-computing/?section=4&page=2
16. https://www.milesweb.in/blog/hosting/cloud/vertical-vs-horizontal-scaling/
17. https://www.utu.ac.in/DiwalibaPolytechnic/download/Objective%20Type%20Questions/CE-IT/Cloud%20Infrastructure.pdf
18. https://www.webasha.com/blog/top-50-cloud-scalability-interview-questions-and-answers
19. https://www.interviewbit.com/cloud-computing-mcq/
20. https://www.gauthmath.com/solution/1816364137838599/4-Multiple-Answer-5-points-You-re-comparing-vertical-vs-horizontal-scaling-for-a