Server Performance Bottleneck Diagnosis Quiz

1. A web application server shows context switch rates exceeding 10,000 per second. What does this indicate?

Normal operation on multi-core systems

Excessive CPU contention among processes

Network interface driver issues

Successful load balancing

2. A web server responds slowly to requests. Memory usage is 40%, CPU is 30%, but disk I/O is at 98%. What is the likely bottleneck?

Insufficient RAM

Disk I/O contention

CPU throttling

Network latency

3. A database server experiences slow query performance. High disk I/O and CPU usage are observed. Which is NOT a likely cause?

Missing database indexes

Excessive network bandwidth

Poor query optimization

Insufficient disk speed

4. A server running multiple virtual machines exhibits poor performance. Which resource contention is most common in this scenario?

CPU oversubscription

Storage area network saturation

Application license limits

DHCP pool exhaustion

5. A server's network interface shows high packet loss and retransmissions. Which layer of the OSI model is affected?

Application layer

Data link layer

Transport layer

Physical layer

6. A server exhibits 95% CPU utilization during peak hours. Which tool would best identify which process consumes the most CPU?

Task Manager (Windows) or top (Linux)

Disk Defragmenter

Network Monitor

Event Viewer

7. Which Windows Performance Monitor counter helps identify if a process is consuming excessive memory?

Private Bytes

Disk Queue Length

Network Interface Bytes/sec

Processor % User Time

8. Which scenario best represents a network bottleneck rather than a server resource bottleneck?

Server CPU at 95%, network utilization 20%

Server CPU at 30%, network utilization 95%

Server RAM at 80%, disk I/O at 50%

Server processes at 150, threads at 2000

9. True or False: Upgrading to faster CPUs always resolves server performance bottlenecks.

True

False

10. Which command displays real-time CPU and memory usage per process on a Linux system?

Top

Netstat

Iostat

Vmstat

11. True or False: Increasing swap space resolves all memory-related performance issues.

True

False

12. True or False: A load average of 8 on a quad-core processor indicates the system is operating at optimal capacity.

True

False

13. A server shows high memory usage but only moderate CPU activity. Which condition best describes this scenario?

Memory leak in running process

CPU overprovisioning

Network saturation

Disk fragmentation

14. A database experiences slow performance with moderate resource utilization. Which diagnostic step should you take first?

Review application query logs and execution plans

Immediately add more RAM

Replace the storage array

Increase network bandwidth

15. Which metric indicates the number of processes waiting for CPU time in a Linux system?

Load average

Page faults

Context switches

Run queue depth

Submit

Server+ Server Performance Bottleneck Diagnosis Quiz

1. A web application server shows context switch rates exceeding 10,000 per second. What does this indicate?

2.

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

2. A web server responds slowly to requests. Memory usage is 40%, CPU is 30%, but disk I/O is at 98%. What is the likely bottleneck?

3. A database server experiences slow query performance. High disk I/O and CPU usage are observed. Which is NOT a likely cause?

4. A server running multiple virtual machines exhibits poor performance. Which resource contention is most common in this scenario?

5. A server's network interface shows high packet loss and retransmissions. Which layer of the OSI model is affected?

6. A server exhibits 95% CPU utilization during peak hours. Which tool would best identify which process consumes the most CPU?

7. Which Windows Performance Monitor counter helps identify if a process is consuming excessive memory?

8. Which scenario best represents a network bottleneck rather than a server resource bottleneck?

9. True or False: Upgrading to faster CPUs always resolves server performance bottlenecks.

10. Which command displays real-time CPU and memory usage per process on a Linux system?

11. True or False: Increasing swap space resolves all memory-related performance issues.

12. True or False: A load average of 8 on a quad-core processor indicates the system is operating at optimal capacity.

13. A server shows high memory usage but only moderate CPU activity. Which condition best describes this scenario?

14. A database experiences slow performance with moderate resource utilization. Which diagnostic step should you take first?

15. Which metric indicates the number of processes waiting for CPU time in a Linux system?

16. The time required for a storage device to locate data and deliver it to the processor is called ____.

17. The process of distributing application load across multiple servers is called ____.

18. A storage array reports high ____, meaning many I/O requests are queued waiting for disk access.

19. The ____ is the maximum amount of data that can be transmitted over a network link per unit time.

20. When physical RAM is exhausted, the system uses disk space as virtual memory. This performance degradation is called ____.