Podcast
Questions and Answers
What is the first step recommended in troubleshooting a network connectivity issue?
What is the first step recommended in troubleshooting a network connectivity issue?
- Troubleshoot the local network adapter
- Check for any network connectivity at all (correct)
- Inspect the physical components of the device
- Ping the loopback IP address
What does a blinking link light on an ethernet interface indicate?
What does a blinking link light on an ethernet interface indicate?
- Incompatible device connected
- Hardware failure
- No network connectivity
- Traffic being sent or received (correct)
What is the purpose of pinging the loopback IP address 127.0.0.1?
What is the purpose of pinging the loopback IP address 127.0.0.1?
- Checking external network connectivity
- Testing network communication capabilities inside the device (correct)
- Testing the switch connection
- Verifying DNS settings
Why is it important to ping the IP address assigned to the local network adapter?
Why is it important to ping the IP address assigned to the local network adapter?
What does it mean if the loopback address responds to a ping?
What does it mean if the loopback address responds to a ping?
If there is no link light associated with an ethernet interface, what might be a likely issue?
If there is no link light associated with an ethernet interface, what might be a likely issue?
What should you do after successfully pinging your local address?
What should you do after successfully pinging your local address?
What can cause intermittent connectivity on a wireless network?
What can cause intermittent connectivity on a wireless network?
Why is it important to check the signal strength on your device?
Why is it important to check the signal strength on your device?
What could be a reason for interference on a wireless network?
What could be a reason for interference on a wireless network?
What is a possible solution to intermittent connectivity issues on a wireless network?
What is a possible solution to intermittent connectivity issues on a wireless network?
Why might it be beneficial to manually configure different channels in a wireless network?
Why might it be beneficial to manually configure different channels in a wireless network?
What information can evaluating the signal-to-noise ratio (SNR) provide about a wireless network?
What information can evaluating the signal-to-noise ratio (SNR) provide about a wireless network?
What should you do if you suspect interference from other tenants in a building on your wireless network?
What should you do if you suspect interference from other tenants in a building on your wireless network?
How does moving to a different location help optimize wireless communication?
How does moving to a different location help optimize wireless communication?
What is the purpose of calculating SNR?
What is the purpose of calculating SNR?
Why is noise represented in red in the utility diagram?
Why is noise represented in red in the utility diagram?
What is the significance of a wide ratio between signal and noise?
What is the significance of a wide ratio between signal and noise?
What does 'Limited or no connectivity' error message in Windows indicate?
What does 'Limited or no connectivity' error message in Windows indicate?
What do APIPA addresses allow communication with?
What do APIPA addresses allow communication with?
How does network latency affect real-time communication like VoIP?
How does network latency affect real-time communication like VoIP?
What issue might be present if there is a 1:1 ratio between signal and noise?
What issue might be present if there is a 1:1 ratio between signal and noise?
Why is having a DHCP-assigned IP preferred over an automatic private IP?
Why is having a DHCP-assigned IP preferred over an automatic private IP?
'Robotic noise' during a voice call can be caused by:
'Robotic noise' during a voice call can be caused by:
What does the jitter statistic measure in real-time communication?
What does the jitter statistic measure in real-time communication?
What could cause large gaps between frames in a network?
What could cause large gaps between frames in a network?
Why is having a high-speed network and low latency important for quality phone calls?
Why is having a high-speed network and low latency important for quality phone calls?
What might be the consequence of someone using all available bandwidth on a network?
What might be the consequence of someone using all available bandwidth on a network?
Why is it important to perform a packet capture on a network experiencing issues?
Why is it important to perform a packet capture on a network experiencing issues?
What does latency measure in a network?
What does latency measure in a network?
How can one identify port flapping on a wired ethernet network?
How can one identify port flapping on a wired ethernet network?
What is the recommended action when experiencing port flapping issues?
What is the recommended action when experiencing port flapping issues?
Why should you check the physical media first when troubleshooting port flapping?
Why should you check the physical media first when troubleshooting port flapping?
Flashcards are hidden until you start studying
Study Notes
- Troubleshooting a device that's unresponsive on a network begins with checking for network connectivity.
- Check for a connection to the network by verifying a link light on the ethernet interface.
- Once connected, test device's communication capabilities by pinging its loopback IP address (127.0.0.1).
- Further testing involves pinging the local IP address assigned to the network adapter, checking for response from the default gateway, and attempting to ping external servers like Google's DNS servers.
- Intermittent connectivity on wireless networks can be caused by interference or weak signal strength.
- Interference can come from other devices using the same frequencies, fluorescent lights, microwave ovens, or other sources.
- Check the signal strength, transmitting and receiving antennas, and frequencies used by the access point to optimize wireless network performance.
- Use built-in utilities on operating systems or third-party tools to evaluate signal-to-noise ratio and identify interference sources.
- Limited connectivity or no internet access issues may be caused by a private IP address assigned to the device instead of a DHCP server.
- Old equipment or high bandwidth usage can lead to high latency and poor quality voice calls or media streaming.
- Monitor jitter statistics to assess regularity of frames on the network and identify potential latency issues.
- Requirements for real-time communication include high-speed networks and very low latency.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
