Common cloud performance, capacity, and connectivity troubleshooting scenarios tested on the CompTIA Cloud+ exam.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the first diagnostic step when a cloud application suddenly becomes slow?
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Check current resource utilization: CPU, memory, disk, and network metrics- What does high latency typically indicate in cloud networking?
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Network delay between the client and cloud resources, or slow responses from the service- When should you increase IOPS on cloud storage?
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When database queries or file read operations are taking too long to complete- What is bandwidth throttling in cloud environments?
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Intentionally limiting data transfer rates to prevent network congestion or control costs- How do you identify if a cloud instance is CPU-bound?
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CPU utilization is consistently near 100 percent during normal load- What causes the cold start problem in serverless functions?
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Function container initialization delay when the function is invoked for the first time or after a period of inactivity- When should you implement auto-scaling in the cloud?
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When demand fluctuates unpredictably and manual scaling cannot keep pace with changes- What is the primary cause of connection timeouts in cloud services?
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The network path is broken, blocked by a firewall, or the target service is not responding- What metric signals that cloud storage capacity is becoming critical?
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Free space drops below 10 to 20 percent of total storage capacity- How does DNS resolution impact cloud application performance?
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Slow DNS lookups add latency before any data transfer begins, delaying the entire request- What is packet loss and why does it matter for cloud services?
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Percentage of data packets that fail to reach their destination, causing retransmission delays and reduced throughput- When is load balancing necessary in a cloud deployment?
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When a single instance cannot handle the incoming traffic volume or when distributing load across multiple instances- What indicates memory exhaustion on a cloud instance?
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Swap usage increases and application response times degrade significantly- How do you troubleshoot connectivity between two cloud instances in different regions?
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Check security groups, network ACLs, route tables, and inter-region network paths for misconfigurations- What is jitter in cloud networking?
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Variation in packet latency over time, causing inconsistent and unpredictable application performance
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