MCQs

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1. What is a common symptom of incorrectly configured load balancing in cloud applications?
   a. Servers all idle
   b. Overloaded servers
   c. Improved performance
   d. Increased storage
   Answer: b
   Source:alibabacloud+2
2. Which error could result if health checks are misconfigured to point at the wrong URL path?
   a. Servers report healthy
   b. All backend servers marked unhealthy
   c. Faster load times
   d. Increased bandwidth
   Answer: b
   Source:oracle+1
3. If a load balancer is set with incorrect timeout values, what impact may occur?
   a. Connections remain stable
   b. Sudden disconnection of clients
   c. Lower server latency
   d. Faster provisioning
   Answer: b
   Source:drdroid+1
4. Which configuration issue can lead to a single point of failure in load balancing?
   a. Fault tolerance configuration
   b. No redundancy
   c. Correct routing
   d. Round robin algorithm
   Answer: b
   Source:designgurus+1
5. What could happen if SSL/TLS certificates on load balancers expire?
   a. Secure connections remain
   b. Users face connection errors
   c. Higher uptime
   d. Faster response
   Answer: b
   Source:bugasura
6. Load balancing algorithms set incorrectly can result in:
   a. Even traffic distribution
   b. Unequal server loads
   c. Fewer bottlenecks
   d. Lower SLA breaches
   Answer: b
   Source:alibabacloud+1
7. What could be the effect of DNS records not updated post-configuration?
   a. Applications accessible
   b. Servers overloaded
   c. Application downtime
   d. Reduced latency
   Answer: c
   Source:cynergytech+1
8. Which load balancer type would be impaired by network misconfigurations?
   a. Application load balancer
   b. Network load balancer
   c. Both types
   d. Neither type
   Answer: c
   Source:cyfuture+2
9. If health check port is set incorrectly, what’s likely seen?
   a. Healthy servers
   b. All servers listed unhealthy
   c. Lower error rates
   d. Enhanced throughput
   Answer: b
   Source:oracle+1
10. What is a risk of misconfigured firewall rules for a cloud load balancer?
    a. Enhanced security
    b. Blocked application traffic
    c. Faster backup speeds
    d. Automated scaling
    Answer: b
    Source:cyfuture+1
11. What can cause slow response times after load balancer misconfiguration?
    a. Insufficient hardware
    b. Proper scaling
    c. Scheduled monitoring
    d. Regular updates
    Answer: a
    Source:alibabacloud
12. Sticky sessions not set properly can result in:
    a. Predictable user experience
    b. Unstable sessions
    c. Consistent routing
    d. Lower error frequencies
    Answer: b
    Source:designgurus
13. When improper health check status codes are used, load balancers may:
    a. Route traffic correctly
    b. Route traffic to unhealthy nodes
    c. Deny unauthorized access
    d. Lower cost
    Answer: b
    Source:drdroid+1
14. Which aspect can be affected by incorrectly configured auto-scaling rules in load balancer settings?
    a. Service disruptions
    b. Better performance
    c. Reduced maintenance
    d. Faster updates
    Answer: a
    Source:cyfuture
15. Misconfigured load balancer algorithms during peak traffic may cause:
    a. Over-provisioned servers
    b. Resource bottlenecks
    c. Even traffic spread
    d. Faster provisioning
    Answer: b
    Source:bugasura+1
16. What is the outcome of outdated security group rules in load balancing cloud setups?
    a. Traffic flows normally
    b. Network communication blocked
    c. Improved redundancy
    d. Automatic failover
    Answer: b
    Source:cynergytech+1
17. What is a direct consequence of a cloud load balancer sending requests to dead servers?
    a. Enhanced availability
    b. Service outages
    c. Improved speed
    d. Increased storage
    Answer: b
    Source:oracle+2
18. Which monitoring metric can alert admins to misconfigured load balancing?
    a. CPU temperature
    b. Throughput errors
    c. Backup frequency
    d. Memory usage
    Answer: b
    Source:oracle+1
19. What commonly caused by uneven traffic due to incorrect round-robin settings?
    a. Equal server usage
    b. Overloaded servers
    c. Minimal bottlenecks
    d. Lower error rates
    Answer: b
    Source:bugasura+1
20. If backend servers are quickly marked unhealthy after configuring health checks, what might be the mistake?
    a. Correct protocol
    b. Incorrect port or path
    c. Lower timeouts
    d. Proper monitoring
    Answer: b
    Source:drdroid+1
21. What may result when load balancers do not support horizontal scaling?
    a. Bottleneck during high load
    b. Adequate scaling
    c. Seamless traffic distribution
    d. Higher server uptime
    Answer: a
    Source:designgurus+1
22. An improper connection draining configuration would cause:
    a. Stable client sessions
    b. Dropped connections
    c. Increased throughput
    d. Faster failover
    Answer: b
    Source:oracle+1
23. Selecting inappropriate load balancing type for application traffic leads to:
    a. Optimized routing
    b. Disrupted service
    c. Better performance
    d. Lower load
    Answer: b
    Source:gtu-mcq+1
24. What problem is closely associated with misconfigured session persistence settings?
    a. Stable logins
    b. Frequent logouts
    c. Increased bandwidth
    d. Faster transactions
    Answer: b
    Source:designgurus
25. Inadequately distributed SSL termination may lead to:
    a. Secure communications
    b. Unencrypted traffic
    c. Lower network loads
    d. High throughput
    Answer: b
    Source:alibabacloud+1
26. What risk is posed by neglecting the least privilege approach in load balancer firewall settings?
    a. Improved access
    b. Security breaches
    c. Lower latency
    d. Increased redundancy
    Answer: b
    Source:cynergytech+1
27. Load balancing misconfiguration resulting in service outages can be resolved with:
    a. Reduced monitoring
    b. Proper failover set-up
    c. Increased session stickiness
    d. Decreased traffic
    Answer: b
    Source:geeksforgeeks+1
28. What would happen if DNS records of load balancer point to wrong resources?
    a. Clients connect seamlessly
    b. Applications become inaccessible
    c. Lower error rates
    d. Higher throughput
    Answer: b
    Source:bugasura+1
29. Incorrect backend protocol configuration may cause:
    a. Smooth data flows
    b. Routing failures
    c. Improved scalability
    d. Optimized encryption
    Answer: b
    Source:oracle+1
30. What is a best practice to minimize risks of misconfiguration in load balancer setup?
    a. No reviews
    b. Regular configuration audits
    c. Route all traffic to one server
    d. Disable all monitoring
    Answer: b
    Source:alibabacloud+1
31. What is the impact of accidentally disabling health checks in cloud load balancing setup?
    a. All servers receive traffic
    b. Traffic sent to unhealthy servers
    c. Improved performance
    d. Lower bandwidth costs
    Answer: b
    Source:oracle+2
32. A misconfigured server weight setting could lead to:
    a. Balanced resource usage
    b. Uneven load distribution
    c. Higher error resilience
    d. Minimum downtime
    Answer: b
    Source:bugasura+1
33. Inadequate response code monitoring in health checks might cause:
    a. Proper routing
    b. Erroneous health reports
    c. Increased throughput
    d. Lower error margins
    Answer: b
    Source:drdroid+1
34. What may be a consequence of cloud provider-specific load balancer misconfigurations?
    a. No performance impact
    b. Disrupted traffic flow
    c. Increased replication speed
    d. Enhanced encryption
    Answer: b
    Source:cyfuture
35. If load balancer health checks are set for the wrong protocol, what’s a likely effect?
    a. Increased availability
    b. Servers incorrectly marked unhealthy
    c. Better performance
    d. Higher SLA compliance
    Answer: b
    Source:oracle+1
36. Which load balancer configuration error can result in latency spikes?
    a. Optimized health checks
    b. Inappropriate algorithm selection
    c. Redundant hardware
    d. Balanced sessions
    Answer: b
    Source:alibabacloud+1
37. What issue will occur if a load balancer forwards HTTP traffic to a backend expecting HTTPS?
    a. Secure sessions
    b. Communication failure
    c. Stable transactions
    d. Higher throughput
    Answer: b
    Source:drdroid+1
38. A load balancer using outdated configuration values may cause:
    a. Reliable routing
    b. Inaccessible resources
    c. More robust failover
    d. Lower server load
    Answer: b
    Source:cynergytech+1
39. If load balancer health check expects 200 OK but receives 404 error, it will:
    a. Mark server as healthy
    b. Mark server as unhealthy
    c. Increase session stickiness
    d. Route more traffic
    Answer: b
    Source:oracle+1
40. What should be done to avoid cloud load balancer misconfigurations?
    a. Ignore feedback
    b. Simulate traffic scenarios
    c. Remove health checks
    d. Limit resource scaling
    Answer: b
    Source:cyfuture+1
41. What is a typical symptom of misconfigured sticky session settings?
    a. Every request routed evenly
    b. Users experience session drops
    c. High backend health
    d. Increased throughput
    Answer: b
    Source:designgurus
42. Server crashes in high demand often trace to which load balancer error?
    a. Correct algorithm use
    b. Misconfigured load distribution
    c. Optimized scaling
    d. Higher redundancy
    Answer: b
    Source:bugasura+1
43. A cloud load balancer set to ignore unhealthy status may:
    a. Only route to healthy servers
    b. Increase downtime
    c. Enhance resource scaling
    d. Lower cost
    Answer: b
    Source:oracle+1
44. Inactive health check endpoints in load balancer configuration cause:
    a. No service interruption
    b. Incorrect status reports
    c. Faster deployments
    d. Improved performance
    Answer: b
    Source:drdroid+1
45. What can resolve uneven load after a misconfigured load balancing algorithm?
    a. Ignore traffic
    b. Select appropriate algorithm
    c. Remove all servers
    d. Force server shutdown
    Answer: b
    Source:alibabacloud+1
46. Why should load balancer configuration be frequently updated?
    a. To introduce errors
    b. To address changing traffic patterns
    c. Decrease redundancy
    d. Increase failures
    Answer: b
    Source:designgurus+1
47. Misconfigured health check interval affects:
    a. Error detection speed
    b. Protocol selection
    c. Disk performance
    d. Session duration
    Answer: a
    Source:oracle+1
48. Unsecured load balancer configurations may expose cloud resources to:
    a. Limited access
    b. Security vulnerabilities
    c. Improved redundancy
    d. Lower scaling
    Answer: b
    Source:cynergytech+1
49. What is a quick first step in troubleshooting load balancer misconfiguration?
    a. Ignore metrics
    b. Check configuration settings
    c. Remove all backend servers
    d. Reduce server weights
    Answer: b
    Source:designgurus+1
50. Regular monitoring of which metric helps catch load balancing misconfiguration early?
    a. Throughput, connection errors, response times
    b. Operating temperature
    c. Disk partition alignment
    d. VM type
    Answer: a
    Source:oracle+2

1. https://www.alibabacloud.com/tech-news/a/load_balancer/gu0idw283b-load-balancer-troubleshooting-common-issues
2. https://cyfuture.cloud/kb/howto/how-do-cloud-provider-specific-configurations-cause-errors-and-how-can-you-avoid-them
3. https://bugasura.io/blog/cloud-app-testing/
4. https://docs.oracle.com/en-us/iaas/Content/Balance/Tasks/common_side_effects_health_misconfiguration.htm
5. https://drdroid.io/stack-diagnosis/load-balancers-load-balancer-health-check-misconfiguration
6. https://www.designgurus.io/course-play/grokking-system-design-fundamentals/doc/challenges-of-load-balancers
7. https://www.geeksforgeeks.org/system-design/what-are-the-risks-of-load-balancer/
8. https://www.cynergytech.com/stories/5-common-cloud-misconfigurations-and-solutions/
9. https://gtu-mcq.com/BE/Computer-Engineering/Semester-8/2180712/5194/MCQs?q=bDFvcmdllQA%3D
10. https://docs.oracle.com/en-us/iaas/Content/Balance/Troubleshooting/common_load_balancer_errors.htm
11. https://www.geeksforgeeks.org/cloud-computing/load-balancing-in-cloud-computing/
12. https://www.geeksforgeeks.org/operating-systems/issues-related-to-load-balancing-in-distributed-system/
13. https://cloud.google.com/load-balancing/docs/https/troubleshooting-ext-https-lbs
14. http://www.placementpreparation.io/mcq/cloud-computing/page/4/
15. https://www.sanfoundry.com/spring-questions-answers-parallelizing-processing-load-balancing/
16. https://www.scribd.com/document/663279534/Elastic-Load-Balancer-MCQS
17. https://letsfindcourse.com/cloud-computing/aws-mcq-questions-and-answers
18. https://www.watelectronics.com/mcq/cloud-computing/
19. https://www.vinsys.com/blog/aws-cloud-practitioner-certification-exam-mcqs
20. https://www.javaguides.net/2023/09/spring-cloud-quiz.html