Network analysis tools - Basic hardware diagnostics
14 important questions on Network analysis tools - Basic hardware diagnostics
Which show cmd can evaluate the performance of the router and the CPU utilization for the last minute?
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In the show processes cpu sorted 1min command display, the CPU utilization for five seconds field contains two elements: 7 percent and 4 percent
What is the 4%?
In the show processes cpu sorted 1min command display, what indicates the volume of network traffic the CPU is receiving?
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When there is a constant CPU utilization of more than 70 percent or 80 percent, troubleshooting is required. What usually does not indicate a problem?
Which command display statistics about the amount of memory that is used and available?
When device performance is a concern during network troubleshooting, what should you check?
Device performance can drastically slow, or get to a point that causes the device to automatically reboot as a result of what?
As a result of a lack of memory,
When a process cannot allocate the needed memory due to unavailability of enough memory, the router or the switch will log a memory allocation failure with what message?
What command shows the status of the interfaces (interface status/line protocol status), MTU, interface operation mode and statistics about input queue and output queue drops and errors, which show how many packets are in the input queue. It also shows the queue depth and the number of dropped packets since the interface counters were last cleared
What in the show interface command output signifies that the traffic is dropping because the router was receiving more traffic than it could process?
Your device may have various controllers that relate to different interfaces. Depending on the interface hardware what command gives you a more detailed packet and error statistics than the show interface command
What command displays whether a cable is connected to a serial interface and whether it is DTE or DCE?
Some information to look for and compare from the output of what command are Received Good Bytes, Received Bad Bytes, Received Good Frames, Received Bad Frames, Transmitted Good Bytes and Transmitted Good Frames?
Usually the information of what command can be helpful to troubleshoot a router reload, and it also provides useful information to convey to Cisco support?
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