Podcast
Questions and Answers
What is the definition of bandwidth?
What is the definition of bandwidth?
- The condition that occurs when a system is unable to keep up with the demands placed on it.
- The amount of data that can be transferred from one place to another in a specific amount of time. (correct)
- The speed at which packets travel from source to destination and back.
- The calculation of how often bits are damaged in transit due to electromagnetic interference.
Which of the following is a best practice when establishing a baseline?
Which of the following is a best practice when establishing a baseline?
- Establish baselines within a network or device's first week of installation.
- Establish baselines using only specialized tools.
- Determine baselines over time by analyzing network traffic. (correct)
- Establish baselines only during the busiest times of the day.
Which of the following is the term for when a system is unable to keep up with the demands placed on it?
Which of the following is the term for when a system is unable to keep up with the demands placed on it?
- Hard fault
- Jitter
- Bottleneck (correct)
- Latency
Which of the following is the term for a calculation of how often bits are damaged in transit due to electromagnetic interference?
Which of the following is the term for a calculation of how often bits are damaged in transit due to electromagnetic interference?
When packets arrive at their destination at different speeds, they sometimes arrive out of order. What does this cause?
When packets arrive at their destination at different speeds, they sometimes arrive out of order. What does this cause?
Which of the following could be to blame if your computer is regularly crashing or restarting?
Which of the following could be to blame if your computer is regularly crashing or restarting?
What is the definition of latency?
What is the definition of latency?
Where can you check your CPU's temperature?
Where can you check your CPU's temperature?
Your computer seems to be running slowly. What should you do to troubleshoot the problem?
Your computer seems to be running slowly. What should you do to troubleshoot the problem?
Which of the following is true about processor performance?
Which of the following is true about processor performance?
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Study Notes
Bandwidth and Related Terms
- Bandwidth is defined as the amount of data that can be transferred from one place to another within a specific time frame.
- Error rate quantifies how often bits are damaged during transit, often due to electromagnetic interference.
- Latency is the speed at which data packets travel from source to destination and back, directly affecting communication efficiency.
- A bottleneck occurs when a system cannot keep up with the demands placed on it, leading to reduced performance.
Performance Monitoring and Troubleshooting
- Establishing baselines should involve analyzing network traffic over time, rather than only during peak usage periods.
- Jitter results when packets arrive at different speeds, potentially causing some packets to arrive out of order.
- Processor overheating can lead to regular crashes or restarts in a computer system.
- Monitoring tools like Resource Monitor can help identify disk and memory utilization issues affecting system performance.
Hardware Monitoring
- CPU temperature can be checked in the BIOS, which is essential for troubleshooting performance issues.
- A healthy CPU utilization average is around 40%, indicating a system is performing optimally without being overloaded.
System Diagnostics
- Utilize Resource Monitor to effectively monitor memory utilization, especially when experiencing slow performance or hard drive activity issues while running multiple applications.
- Task Manager and Performance Manager can provide general system insights, but for deeper issues, specialized tools are recommended.
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