CompTIA A+: Troubleshooting wired &
Wireless Networks
Which utility can be used to help locate or troubleshoot the cause of an IP conflict in a networked
environment? - correct answer Ping
Which latency value indicates the amount of time it takes before a server receives a request from a
client device? - correct answer TTFB
Which value represents the threshold for an acceptable level of network jitter? - correct answer
Below 30ms
Which level of frequency and duration indicates that port flapping is happening on a networking device?
- correct answer Three times a second, for at least ten seconds
During your investigation of a device that has lost its connectivity to your wireless network, you discover
the adapter has been assigned an IP address of 169.254.50.80. What does this indicate about the statue
of your network or the device? - correct answer There is a problem with the DHCP
server
Which feature, or service can e used to allocate more network bandwidth to Voice over IP applications?
- correct answer Quality of Service (QoS)
If every user connected to your network is reporting very slow speeds and poor connectivity, which step
should you attempt first to resolve the problem? - correct answer Reboot the router
If your wireless network is experiencing interference from another wireless in clos proximity, which
option is most likely to reduce the level of interference? - correct answer Changing
the transmission channel or frequency of your router
Wireless Networks
Which utility can be used to help locate or troubleshoot the cause of an IP conflict in a networked
environment? - correct answer Ping
Which latency value indicates the amount of time it takes before a server receives a request from a
client device? - correct answer TTFB
Which value represents the threshold for an acceptable level of network jitter? - correct answer
Below 30ms
Which level of frequency and duration indicates that port flapping is happening on a networking device?
- correct answer Three times a second, for at least ten seconds
During your investigation of a device that has lost its connectivity to your wireless network, you discover
the adapter has been assigned an IP address of 169.254.50.80. What does this indicate about the statue
of your network or the device? - correct answer There is a problem with the DHCP
server
Which feature, or service can e used to allocate more network bandwidth to Voice over IP applications?
- correct answer Quality of Service (QoS)
If every user connected to your network is reporting very slow speeds and poor connectivity, which step
should you attempt first to resolve the problem? - correct answer Reboot the router
If your wireless network is experiencing interference from another wireless in clos proximity, which
option is most likely to reduce the level of interference? - correct answer Changing
the transmission channel or frequency of your router
