Top Cloudflare Security & CDN Interview Questions [2025]

Cloudflare Security Fundamentals

1. What is Cloudflare’s role in web security?

Cloudflare secures web applications by filtering traffic at the edge using WAF, DDoS protection, and Zero Trust policies. It mitigates threats like SQL injection and bot attacks, ensuring uptime. This aligns with cloud-native observability, enabling secure, scalable deployments in multi-cloud environments.

2. Why is Cloudflare’s WAF critical?

Cloudflare’s WAF protects applications from vulnerabilities like XSS and SQL injection using managed rulesets. It filters malicious requests at the edge, reducing server load and ensuring compliance in cloud-native security workflows for DevOps teams.

3. When should you enable DDoS protection?

Enable DDoS protection for public-facing applications or during high-risk periods like product launches. It mitigates volumetric attacks, ensuring uptime and integrating with automated security pipelines in DevOps environments.

4. Where are WAF rules configured?

• Cloudflare Dashboard UI: Defines managed rulesets.
• Terraform Configuration Files: Manages rules as code.
• API Endpoint Calls: Programmatic rule updates.
• Git Repositories: Tracks rule versions.
• CI/CD Pipeline Scripts: Automates rule deployments.
• Kubernetes Manifests: Integrates with clusters.

5. Who manages Cloudflare security policies?

Security engineers and DevOps teams manage policies, configuring WAF, rate limiting, and Zero Trust rules. They align with compliance requirements, ensuring secure application delivery in cloud-native ecosystems.

6. Which threats does Cloudflare WAF block?

• SQL Injection Attacks: Prevents database exploits.
• Cross-Site Scripting (XSS): Blocks script injections.
• File Inclusion Exploits: Stops unauthorized access.
• Cross-Site Request Forgery: Mitigates CSRF attacks.
• Bot-Driven Abuses: Filters automated traffic.
• Zero-Day Vulnerabilities: Uses managed rulesets.

7. How does Cloudflare’s Bot Management work?

Bot Management uses machine learning to distinguish malicious bots from legitimate traffic, applying challenges or blocks. It reduces abuse, ensuring performance and security for applications in cloud-native deployments.

8. What is Cloudflare’s Zero Trust model?

Cloudflare’s Zero Trust verifies users and devices before granting access, using SSO and device posture checks. It secures internal apps, aligning with CI/CD pipelines for automated, secure deployments.

• Identity-Based Authentication: Integrates with SSO providers.
• Device Posture Validation: Ensures compliance before access.
• Role-Based Access Policies: Restricts by user roles.
• Secure Tunnel Connections: Protects internal traffic.
• Real-Time Logging System: Tracks access for audits.
• Dynamic Policy Updates: Adapts to new threats.

9. Why use rate limiting in Cloudflare?

Rate limiting prevents API abuse and DDoS attacks by throttling requests based on IP or token. It ensures resource availability, supporting high-traffic applications in cloud-native DevOps environments.

10. When would you use Cloudflare Access?

Use Cloudflare Access to secure internal applications without VPNs, enforcing authentication via SSO. It’s ideal for remote teams, integrating with CI/CD for automated policy management.

11. Where are security event logs stored?

• Cloudflare Logpush Service: Sends to SIEMs.
• External Log Aggregators: Integrates with Splunk.
• Prometheus Metrics Endpoints: Exposes security data.
• Grafana Dashboard Visuals: Displays real-time events.
• Kubernetes Log Systems: Captures containerized logs.
• Cloud Logging Services: Centralizes for analysis.

12. Who monitors Cloudflare security metrics?

Security analysts and SREs monitor metrics like blocked requests and attack rates, using dashboards to detect anomalies. They ensure robust protection in cloud-native monitoring systems.

13. Which metrics track WAF performance?

• waf_requests_blocked_total: Counts blocked requests.
• waf_rule_triggered_count: Tracks rule activations.
• waf_latency_seconds: Measures rule processing time.
• waf_bot_score_distribution: Analyzes bot detection rates.
• waf_ip_blocked_total: Logs blocked IP attempts.
• waf_rate_limit_exceeded: Tracks throttling events.

14. How do you debug WAF rule conflicts?

Debug WAF conflicts by analyzing security logs, testing rules in staging, and adjusting priorities. Update via Git and CI/CD to ensure accurate filtering in cloud-native applications.

15. What is the impact of misconfigured WAF rules?

Misconfigured WAF rules block legitimate traffic or allow attacks, risking downtime or breaches. Review logs, test in staging, and update via Git to ensure accuracy in secure DevOps workflows.

CDN Core Concepts

16. What is the role of Cloudflare’s CDN?

Cloudflare’s CDN caches content at edge nodes, reducing origin server load and latency. It uses smart routing and compression to optimize delivery, ensuring high-performance applications in cloud-native ecosystems.

17. Why optimize cache hit ratios?

Optimizing cache hit ratios minimizes origin requests, improving latency and scalability. It ensures faster content delivery, aligning with performance SLAs in cloud-native DevOps deployments.

18. When would you purge Cloudflare’s cache?

Purge cache when updating content or fixing corrupted assets. Use selective purges for URLs or full purges for sites, ensuring freshness in high-traffic applications.

19. Where are cache policies configured?

• Cloudflare Dashboard UI: Sets cache levels.
• Page Rule Settings: Defines custom cache rules.
• Terraform Configuration Files: Manages as code.
• Git Repositories: Tracks policy versions.
• API Endpoint Calls: Programmatic cache updates.
• CI/CD Pipeline Scripts: Automates cache policies.

20. Who tunes Cloudflare cache settings?

Performance engineers tune cache settings, analyzing hit ratios and latency metrics. They collaborate with DevOps to meet SLAs, optimizing delivery in cloud-native systems.

21. Which settings improve cache performance?

• Cache Level Options: Enables aggressive caching.
• Edge TTL Configuration: Sets content expiry times.
• Browser Cache TTL: Controls client-side caching.
• Custom Cache Keys: Differentiates by query strings.
• Tiered Cache Topology: Reduces origin hits.
• Smart Purge Triggers: Invalidates outdated content.

22. How does Argo Smart Routing work?

Argo Smart Routing selects optimal paths across Cloudflare’s network, reducing latency. It enhances performance for global users, supporting scalable applications in cloud-native ecosystems.

23. Why use Brotli compression in Cloudflare?

Brotli compression reduces payload sizes, improving load times and bandwidth efficiency. It’s critical for mobile users and high-traffic sites, integrating with DevOps performance workflows.

24. When would you bypass Cloudflare’s cache?

Bypass cache for dynamic content like API responses or user-specific data needing real-time updates. Use page rules to control, ensuring accuracy in cloud-native applications.

25. Where are performance metrics monitored?

• Cloudflare Analytics Dashboard: Tracks latency, hits.
• Prometheus Metrics Endpoints: Exposes performance data.
• Grafana Visualization Panels: Displays real-time metrics.
• External Monitoring Tools: Integrates with Splunk.
• Kubernetes Pod Metrics: Captures containerized data.
• Cloud Logging Services: Centralizes for analysis.

26. Who optimizes Cloudflare CDN performance?

Network engineers and DevOps teams optimize CDN performance, tuning cache and routing settings. They monitor metrics to ensure low-latency delivery in cloud-native environments.

27. Which tools enhance CDN performance?

• Cloudflare Page Rules: Customizes cache behavior.
• Argo Smart Routing: Optimizes traffic paths.
• Terraform Provider Scripts: Automates CDN configs.
• Wrangler CLI Tool: Manages performance scripts.
• CI/CD Pipeline Integration: Automates optimizations.
• Grafana Dashboard Visuals: Monitors performance metrics.

28. How do you handle cache purge delays?

Handle purge delays by using API-driven purges, monitoring status, and testing in staging. Optimize purge scope and update via Git to ensure freshness in deployments.

29. What is the impact of low cache hit ratios?

Low cache hit ratios increase origin load, slowing delivery and risking downtime. Analyze metrics, tune cache policies, and deploy via CI/CD to improve performance in DevOps workflows.

30. Why use Cloudflare for DNS management?

Cloudflare’s DNS offers fast resolution with 1.1.1.1, DDoS protection, and DNSSEC for security. It ensures uptime and performance for applications in cloud-native architectures.

31. When do you enable DNSSEC in Cloudflare?

Enable DNSSEC to secure DNS responses against spoofing, ensuring data integrity. It’s critical for regulated industries, integrating with automated DNS management workflows.

32. Where are DNS configurations stored?

• Cloudflare Dashboard UI: Manages DNS records.
• Terraform Configuration Files: Defines records as code.
• Git Repositories: Tracks DNS versions.
• API Endpoint Calls: Programmatic DNS updates.
• CI/CD Pipeline Scripts: Automates DNS configs.
• Kubernetes Manifests: Integrates with clusters.

33. Who manages Cloudflare DNS settings?

Network engineers manage DNS settings, configuring records and DNSSEC. They collaborate with DevOps to ensure uptime, aligning with cloud-native performance requirements.

34. Which metrics track CDN performance?

• cloudflare_cache_hit_ratio: Measures cache efficiency.
• cloudflare_requests_total: Counts total requests.
• cloudflare_latency_seconds: Tracks response times.
• cloudflare_bandwidth_usage: Monitors data transfer.
• cloudflare_cache_miss_total: Logs cache misses.
• cloudflare_purge_latency: Measures purge delays.

35. How do you debug cache misses?

Debug cache misses by checking headers, reviewing page rules, and analyzing logs. Test configurations in staging and update via Git to optimize hit ratios in deployments.

36. What is Cloudflare’s edge network role?

Cloudflare’s edge network caches content and processes requests globally, reducing latency. It supports security and performance, aligning with cloud-native architectures for scalable deployments.

DDoS Mitigation Strategies

37. Why is Cloudflare effective against DDoS?

Cloudflare’s Anycast network absorbs DDoS attacks, distributing traffic across global nodes. It uses rate limiting and IP filtering to block malicious requests, ensuring uptime in cloud-native applications.

38. When would you enable Under Attack Mode?

Enable Under Attack Mode during confirmed DDoS attacks to enforce aggressive filtering. It challenges traffic, protecting applications and integrating with automated alerts in DevOps workflows.

39. Where are DDoS policies configured?

• Cloudflare Security Dashboard: Sets protection levels.
• Terraform Configuration Files: Manages as code.
• API Endpoint Calls: Programmatic policy updates.
• Git Repositories: Tracks policy versions.
• CI/CD Pipeline Scripts: Automates DDoS configs.
• Kubernetes Manifests: Integrates with clusters.

40. Who manages DDoS mitigation strategies?

Security engineers manage DDoS strategies, configuring rate limits and WAF rules. They collaborate with DevOps to ensure uptime, aligning with compliance needs in cloud-native systems.

41. Which settings enhance DDoS protection?

• Rate Limiting Rules: Throttles excessive requests.
• IP Reputation Filters: Blocks known malicious IPs.
• Challenge Response Mechanisms: Validates legitimate traffic.
• Geo-Blocking Policies: Restricts by region.
• Bot Management Rules: Filters automated attacks.
• Under Attack Mode: Enables aggressive filtering.

42. How do you debug DDoS false positives?

Debug false positives by analyzing logs, adjusting rate limits, and testing in staging. Update rules via Git and CI/CD to balance security and access in deployments.

43. What is Cloudflare’s Magic Transit?

Magic Transit routes on-premises traffic through Cloudflare’s edge, mitigating DDoS and filtering threats. It enhances hybrid security, aligning with complex cloud environments.

44. Why monitor DDoS metrics in production?

Monitoring DDoS metrics detects attack patterns, ensuring timely mitigation. It supports proactive security, aligning with DevOps practices for robust cloud-native application protection.

45. When would you adjust rate limiting rules?

Adjust rate limiting during traffic surges or false positives to balance access and security. Test in staging and deploy via CI/CD to optimize cloud-native workflows.

46. Where are DDoS logs analyzed?

• Cloudflare Logpush Service: Sends to SIEMs.
• External Log Aggregators: Integrates with Splunk.
• Prometheus Metrics Endpoints: Exposes attack data.
• Grafana Dashboard Visuals: Displays real-time events.
• Kubernetes Log Systems: Captures containerized logs.
• Cloud Logging Services: Centralizes for analysis.

47. Who optimizes DDoS protection settings?

Security analysts optimize DDoS settings, tuning rate limits and bot filters. They monitor metrics, ensuring robust protection in cloud-native DevOps environments.

48. Which metrics track DDoS mitigation?

• ddos_requests_mitigated_total: Counts blocked attacks.
• ddos_attack_duration_seconds: Measures attack length.
• ddos_ip_blocked_total: Tracks blocked IP attempts.
• ddos_rate_limit_triggered: Logs throttling events.
• ddos_bot_challenges_issued: Counts bot validations.
• ddos_traffic_anomaly_score: Detects unusual patterns.

49. How do you scale DDoS protection?

Scale DDoS protection by adjusting rate limits, enabling bot management, and load-testing in staging. Monitor metrics and update via CI/CD to ensure resilience in high-traffic scenarios.

50. What is the impact of DDoS attack surges?

DDoS surges overwhelm servers, causing downtime. Enable Under Attack Mode, tune rate limits, and monitor metrics to mitigate risks in real-time DevOps.

Zero Trust and Access Control

51. Why implement Cloudflare Zero Trust?

Cloudflare Zero Trust verifies users and devices, reducing attack surfaces. It integrates with SSO, enforcing role-based access, ensuring compliance in cloud-native security workflows.

52. When would you use Cloudflare Gateway?

Use Cloudflare Gateway to secure outbound traffic, filtering DNS and HTTP requests. It’s ideal for remote workforces, integrating with CI/CD for automated policy updates.

53. Where are Zero Trust policies defined?

• Cloudflare Dashboard UI: Configures access rules.
• Terraform Configuration Files: Manages policies as code.
• Git Repositories: Tracks policy versions.
• API Endpoint Calls: Programmatic policy updates.
• CI/CD Pipeline Scripts: Automates policy deployments.
• Kubernetes Manifests: Integrates with clusters.

54. Who configures Zero Trust policies?

Security engineers configure Zero Trust policies, setting SSO and device checks. They collaborate with DevOps to ensure secure access in cloud-native environments.

55. Which settings enhance Zero Trust?

• SSO Integration Settings: Validates via identity providers.
• Device Posture Checks: Ensures compliance before access.
• Role-Based Access Rules: Restricts by user roles.
• Mutual TLS Authentication: Secures client-server connections.
• Geo-Restriction Policies: Limits by location.
• Audit Log Configurations: Tracks access for compliance.

56. How do you debug Zero Trust issues?

Debug Zero Trust issues by analyzing access logs, verifying SSO configs, and testing in staging. Update policies via Git and CI/CD to ensure secure access.

57. What is the role of Cloudflare Tunnel?

Cloudflare Tunnel connects internal applications to the edge without exposing ports, enhancing security. It supports Zero Trust, aligning with cloud-native workflows.

58. Why use mutual TLS in Zero Trust?

Mutual TLS ensures both client and server authenticity, preventing unauthorized access. It’s critical for sensitive applications, integrating with automated security pipelines.

59. When do you enable session timeouts?

Enable session timeouts to limit access duration, enhancing security for remote users. Configure via dashboard or API, aligning with cloud-native compliance requirements.

60. Where are access logs stored?

• Cloudflare Logpush Service: Sends to SIEMs.
• External Log Aggregators: Integrates with Splunk.
• Prometheus Metrics Endpoints: Exposes access data.
• Grafana Dashboard Visuals: Displays real-time logs.
• Kubernetes Log Systems: Captures containerized logs.
• Cloud Logging Services: Centralizes for analysis.

61. Who monitors Zero Trust metrics?

Security analysts monitor Zero Trust metrics like access denials and session durations. They use dashboards to ensure compliance in cloud-native security workflows.

62. Which metrics track Zero Trust performance?

• zero_trust_access_denied_total: Counts failed attempts.
• zero_trust_session_duration: Measures session lengths.
• zero_trust_authentication_success: Tracks successful logins.
• zero_trust_device_compliance: Monitors device posture.
• zero_trust_policy_violations: Logs policy breaches.
• zero_trust_latency_seconds: Measures authentication delays.

63. How do you scale Zero Trust policies?

Scale Zero Trust by automating policy updates via Terraform, integrating with SSO, and load-testing in staging. Monitor metrics to ensure performance in cloud-native environments.

64. What is the impact of misconfigured Zero Trust?

Misconfigured Zero Trust policies block legitimate users or allow unauthorized access, risking security. Review logs, test in staging, and update via Git to ensure reliability in secure DevOps.

Cloudflare in CI/CD and Multi-Cloud

65. Why integrate Cloudflare with CI/CD?

Integrating Cloudflare with CI/CD automates security and CDN configurations, ensuring consistent policies. It streamlines deployments, aligning with DevOps practices for cloud-native applications.

66. When would you test Cloudflare configs in CI/CD?

Test Cloudflare configs during pre-deployment to verify WAF rules and cache settings. This ensures reliability, aligning with automated validation in cloud-native pipelines.

67. Where do you integrate Cloudflare in CI/CD?

• Build Stage Validation: Tests configuration syntax.
• Staging Environment Testing: Simulates production scenarios.
• Deployment Verification Checks: Validates post-release configs.
• Regression Test Suites: Detects configuration issues.
• Pipeline Artifact Storage: Archives config results.
• Automated Alert Systems: Notifies on failures.

68. Who manages Cloudflare in CI/CD?

DevOps engineers manage Cloudflare in CI/CD, automating WAF and cache deployments. They ensure configs align with pipeline stages, supporting reliable cloud-native workflows.

69. Which tools enhance Cloudflare CI/CD integration?

• Terraform Provider Scripts: Manages Cloudflare resources.
• GitHub Actions Workflows: Triggers config deployments.
• Jenkins Pipeline Plugins: Automates rule updates.
• GitLab CI Configurations: Integrates with pipelines.
• Wrangler CLI Tool: Deploys performance scripts.
• Prometheus Monitoring Tools: Tracks pipeline metrics.

70. How do you automate Cloudflare config tests?

Automate tests using Terraform for configs and CI/CD tools like Jenkins. Store configs in Git, execute tests, and monitor results for cloud-native reliability.

71. What would you do if configs fail in CI/CD?

Analyze pipeline logs, debug Terraform configs, and test in staging. Fix issues, update via Git, and rerun pipelines to ensure reliable DevOps configurations.

72. Why might Cloudflare configs slow CI/CD?

Configs slow CI/CD due to complex WAF rules or unoptimized cache settings. Simplify rules, cache results, and test in staging to improve efficiency in pipelines.

73. When do you use Cloudflare in multi-cloud?

Use Cloudflare in multi-cloud to unify security and performance across AWS, GCP, and Azure. It simplifies management, ensuring consistent policies in hybrid environments.

74. Where are multi-cloud policies defined?

• Cloudflare Dashboard UI: Centralizes policy configs.
• Terraform Configuration Files: Manages as code.
• Git Repositories: Tracks multi-cloud policies.
• API Endpoint Calls: Programmatic policy updates.
• CI/CD Pipeline Scripts: Automates deployments.
• Kubernetes Manifests: Integrates with clusters.

75. Who manages multi-cloud integrations?

Cloud architects manage multi-cloud integrations, configuring Cloudflare to secure and optimize traffic across providers. They align with DevOps for automated updates in systems.

76. Which metrics track multi-cloud performance?

• cloudflare_requests_total: Counts cross-cloud requests.
• cloudflare_latency_seconds: Measures multi-cloud latency.
• cloudflare_cache_hit_ratio: Tracks cache efficiency.
• cloudflare_errors_total: Logs cross-cloud errors.
• cloudflare_traffic_by_provider: Analyzes provider distribution.
• cloudflare_security_events: Monitors multi-cloud threats.

77. How do you optimize multi-cloud traffic?

Optimize multi-cloud traffic using Cloudflare’s load balancing, Argo routing, and cache policies. Test configurations in staging and monitor metrics to ensure performance.

78. What is the impact of misconfigured multi-cloud policies?

Misconfigured policies cause inconsistent security or performance, risking downtime. Review configs, test in staging, and update via Git to ensure reliability in multi-cloud DevOps.

Load Balancing and Traffic Management

79. Why use Cloudflare for load balancing?

Cloudflare’s load balancing distributes traffic across servers, ensuring uptime and performance. It supports health checks and failover, optimizing resource usage in cloud-native applications.

80. When do you enable geo-steering?

Enable geo-steering to route traffic based on user location, reducing latency. It’s ideal for global applications, integrating with CI/CD for automated policy updates.

81. Where are load balancing rules defined?

• Cloudflare Traffic Dashboard: Configures load balancers.
• Terraform Configuration Files: Manages as code.
• API Endpoint Calls: Programmatic rule updates.
• Git Repositories: Tracks rule versions.
• CI/CD Pipeline Scripts: Automates balancer configs.
• Kubernetes Manifests: Integrates with clusters.

82. Who configures load balancing policies?

Network engineers configure load balancing, setting health checks and failover rules. They align with DevOps to ensure scalability, optimizing performance in cloud-native environments.

83. Which settings enhance load balancing?

• Health Check Intervals: Monitors server availability.
• Failover Pool Configurations: Routes to backup servers.
• Geo-Steering Policies: Optimizes by location.
• Session Affinity Settings: Maintains user sessions.
• Weighted Traffic Distribution: Balances load dynamically.
• Proximity Routing Options: Minimizes latency.

84. How do you debug load balancing issues?

Debug load balancing by analyzing health check logs, verifying server pools, and testing in staging. Update rules via Git and CI/CD to ensure reliability in deployments.

85. What is the role of Cloudflare’s Anycast?

Cloudflare’s Anycast routes traffic to the nearest edge node, reducing latency and absorbing DDoS attacks. It enhances performance, aligning with scalable DevOps.

86. Why monitor load balancing metrics?

Monitoring load balancing metrics ensures optimal traffic distribution and uptime. It detects failover issues, aligning with DevOps practices for reliable cloud-native applications.

87. When would you adjust load balancing rules?

Adjust load balancing rules during traffic spikes or server failures to optimize distribution. Test in staging and deploy via CI/CD to ensure performance in workflows.

88. Where are load balancing logs stored?

• Cloudflare Logpush Service: Sends to SIEMs.
• External Log Aggregators: Integrates with Splunk.
• Prometheus Metrics Endpoints: Exposes traffic data.
• Grafana Dashboard Visuals: Displays real-time logs.
• Kubernetes Log Systems: Captures containerized logs.
• Cloud Logging Services: Centralizes for analysis.

89. Who optimizes load balancing performance?

Network engineers optimize load balancing, tuning health checks and weights. They monitor metrics, ensuring efficient traffic flow in cloud-native DevOps environments.

90. Which metrics track load balancing?

• load_balancer_requests_total: Counts traffic volume.
• load_balancer_latency_seconds: Measures response times.
• load_balancer_failover_events: Tracks failover triggers.
• load_balancer_healthcheck_failures: Logs server issues.
• load_balancer_traffic_by_pool: Analyzes pool distribution.
• load_balancer_geo_steering: Monitors location-based routing.

91. How do you scale load balancing?

Scale load balancing by adding server pools, tuning weights, and load-testing in staging. Monitor metrics and update via CI/CD to ensure performance in scenarios.

92. What is the impact of misconfigured load balancers?

Misconfigured load balancers cause uneven traffic or downtime, degrading performance. Review configs, test in staging, and update via Git to ensure reliability in cloud-native DevOps.

Troubleshooting and Best Practices

93. Why monitor Cloudflare metrics in production?

Monitoring metrics ensures performance and security, detecting anomalies like cache misses or attack spikes. It supports proactive issue resolution, aligning with DevOps practices for systems.

94. When would you escalate Cloudflare issues?

Escalate issues when metrics show persistent latency, cache misses, or security breaches. Use incident tools and CI/CD alerts to resolve quickly in DevOps workflows.

95. Where are Cloudflare logs analyzed?

• Cloudflare Logpush Service: Sends to SIEMs.
• External Log Aggregators: Integrates with Splunk.
• Prometheus Metrics Endpoints: Exposes performance data.
• Grafana Dashboard Visuals: Displays real-time logs.
• Kubernetes Log Systems: Captures containerized logs.
• Cloud Logging Services: Centralizes for analysis.

96. Who troubleshoots Cloudflare issues?

SREs troubleshoot issues, analyzing latency and security metrics. They collaborate with DevOps to update configs via Git, ensuring optimal delivery in cloud-native systems.

97. Which tools aid Cloudflare troubleshooting?

• Cloudflare Diagnostic Tools: Tests connectivity, DNS.
• Prometheus and Grafana: Visualizes performance metrics.
• Terraform Plan Outputs: Validates config changes.
• CI/CD Pipeline Logs: Tracks deployment issues.
• Splunk Log Analysis: Correlates security events.
• Cloudflare Logpush Service: Streams logs to SIEMs.

98. How do you handle SSL/TLS issues?

Handle SSL/TLS issues by verifying certificates, enabling HSTS, and checking cipher suites. Test in staging and update via CI/CD to ensure secure connections in deployments.

99. What is the best practice for Cloudflare configs?

Best practices include automating configs with Terraform, testing in staging, and monitoring metrics. Use Git for version control and CI/CD for updates, ensuring reliability in DevOps certification workflows.

100. Why use canary deployments with Cloudflare?

Canary deployments test configs like WAF rules or cache settings on partial traffic, minimizing risks. They ensure stable rollouts, aligning with cloud-native DevOps practices.

101. How does Cloudflare support API security?

Cloudflare secures APIs with rate limiting, WAF rules, and Zero Trust authentication, preventing abuse. It ensures reliable, secure API delivery in real-time DevOps.