Cloud App Scaling & Load Balancing Quiz

1. A scaled application must maintain compliance with data residency requirements. Where should this be enforced?

In auto-scaling policies and cloud region constraints

Only in the application code

Through database backups alone

In user authentication settings

2. True or False: Encryption overhead becomes negligible when scaled across many cloud instances.

True

False

3. When scaling a web app, what is the minimum recommended threshold for triggering scale-out?

Defined by business SLAs and performance baselines

Always 80% CPU utilization

Fixed at 50% memory usage

When users complain about slowness

4. Which approach best handles session persistence across multiple scaled instances?

Centralized session storage (Redis or managed database)

Storing sessions locally on each instance

Disabling sessions entirely

Using only HTTP cookies without server storage

5. True or False: Rate limiting should be implemented before scaling to prevent abuse.

True

False

6. What is the primary purpose of health checks in an auto-scaling environment?

Detect unhealthy instances and replace them automatically

Monitor application performance metrics only

Encrypt all traffic between instances

Manage user session timeouts

7. During traffic growth, which caching strategy reduces database load most effectively?

Multi-layer caching with TTL policies and cache invalidation

Caching all database queries indefinitely

Removing cache to ensure data freshness

Caching only user authentication tokens

8. Which cloud service model provides the most control over scaling infrastructure?

Infrastructure as a Service (IaaS)

Platform as a Service (PaaS)

Software as a Service (SaaS)

Function as a Service (FaaS)

9. True or False: A stateless application design is essential for horizontal scaling.

True

False

10. What does 'scale-down' require to prevent application disruption?

Connection draining and graceful shutdown procedures

Immediate termination of instances

Clearing all cache before removal

Notifying users of downtime

11. Which auto-scaling metric is most appropriate for a web application experiencing sudden traffic spikes?

CPU utilization

Network latency

Disk read/write speed

Memory swap usage

12. Which load balancing algorithm distributes requests based on current server workload?

Least connections

Round-robin

Random

IP hash

13. True or False: Vertical scaling (adding resources to a single instance) is always better for web apps than horizontal scaling.

True

False

14. Which metric should you monitor to prevent database connection pool exhaustion during scaling?

Active connections and wait queue depth

CPU temperature of the server

Total disk space used

Network packet loss percentage

15. What is the benefit of using container orchestration (like Kubernetes) for scaling?

Automated deployment, scaling, and management of containerized apps

Eliminates the need for monitoring

Removes requirement for load balancing

Guarantees zero-downtime deployments

16. When scaling cloud infrastructure, which security concern requires immediate attention?

Ensuring consistent security policies across all instances

Removing encryption from new instances for speed

Disabling firewalls on auto-scaled nodes

Simplifying IAM roles for convenience

17. What does a Content Delivery Network (CDN) primarily accomplish during traffic growth?

Distributes static content globally and reduces origin server load

Encrypts all user traffic automatically

Manages database replication

Eliminates the need for auto-scaling

18. A web app needs to scale to handle 10x traffic. Which database approach best prevents bottlenecking?

Read replicas and connection pooling

Increasing single-instance storage

Disabling indexes for speed

Using only in-memory caching

19. In a load-balanced architecture, which method ensures sticky sessions for stateful applications?

Session affinity or cookie-based routing

Round-robin load balancing

IP hash load balancing

Least connections algorithm

20. What is the primary advantage of horizontal scaling over vertical scaling for web applications?

Lower overall cost and better fault tolerance

Simpler database configuration

Reduced network bandwidth requirements

Elimination of load balancing needs

Cloud Professional Scaling a Web App for Traffic Growth Quiz

1. A scaled application must maintain compliance with data residency requirements. Where should this be enforced?

2.

What first name or nickname would you like us to use?

2. True or False: Encryption overhead becomes negligible when scaled across many cloud instances.

3. When scaling a web app, what is the minimum recommended threshold for triggering scale-out?

4. Which approach best handles session persistence across multiple scaled instances?

5. True or False: Rate limiting should be implemented before scaling to prevent abuse.

6. What is the primary purpose of health checks in an auto-scaling environment?

7. During traffic growth, which caching strategy reduces database load most effectively?

8. Which cloud service model provides the most control over scaling infrastructure?

9. True or False: A stateless application design is essential for horizontal scaling.

10. What does 'scale-down' require to prevent application disruption?

11. Which auto-scaling metric is most appropriate for a web application experiencing sudden traffic spikes?

12. Which load balancing algorithm distributes requests based on current server workload?

13. True or False: Vertical scaling (adding resources to a single instance) is always better for web apps than horizontal scaling.

14. Which metric should you monitor to prevent database connection pool exhaustion during scaling?

15. What is the benefit of using container orchestration (like Kubernetes) for scaling?

16. When scaling cloud infrastructure, which security concern requires immediate attention?

17. What does a Content Delivery Network (CDN) primarily accomplish during traffic growth?

18. A web app needs to scale to handle 10x traffic. Which database approach best prevents bottlenecking?

19. In a load-balanced architecture, which method ensures sticky sessions for stateful applications?

20. What is the primary advantage of horizontal scaling over vertical scaling for web applications?