Questions and Answers
What is the first step to troubleshoot the lack of connectivity to a remote device on a network?
Check for a link light associated with the ethernet interface
What does a blinking light on the switch indicate?
Traffic is being sent or received
What does a successful ping to the loopback IP address 127.0.0.1 indicate?
Communication using the built-in network capabilities inside the device
Why is it important to ping the IP address assigned to the local network adapter?
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What is the purpose of pinging a local address?
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Why is the default gateway important for a network?
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What can cause intermittent connectivity on wireless networks?
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What role do frequencies play in wireless network performance?
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How can interference be assessed in wireless networks?
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What can Performance Monitor in Windows provide insights into?
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What should be checked if the system tray shows limited or no connectivity?
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What type of addresses are APIPA addresses?
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When using APIPA addresses, what type of error messages may appear?
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What type of networks do Voiceover IP and media streaming require for real-time communication?
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What is jitter measuring in a network?
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What is essential for transferring large amounts of information quickly on a network?
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Why must bandwidth availability be considered for network performance?
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Study Notes
- APIPA addresses are link local addresses, limiting communication to devices on the same network
- Error messages like "Limited or no connectivity" and "No internet access" may appear when using these addresses
- Voiceover IP and media streaming require low latency and high-speed networks for real-time communication
- Jitter is a network statistic measuring consistency in frame intervals for good voice call quality
- A high-speed network and low latency are essential for transferring large amounts of information quickly
- Bandwidth availability must be considered to prevent poor latency and network congestion
- Outdated equipment may not meet the high speeds and low latency required for some networks
- Packet captures provide detailed information about network issues, including latency and frame intervals
- Port flapping can indicate physical issues between devices, requiring testing of the cable and hardware.
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