Refer to the exhibit.
An administrator cannot connect from R1 to R2. To troubleshoot this problem, the administrator
has entered the command shown in the exhibit. Based on the output shown, what could be the
problem?
A.
The serial interface is configured for half duplex.
B.
The serial interface does not have a cable attached.
C.
The serial interface has the wrong type of cable attached.
D.
The serial interface is configured for the wrong frame size.
E.
The serial interface has a full buffer.
Explanation:
the term ring in general describes a circular buffer, i.e. a formerly linear list of entries in which each entry has a pointer to the next element in the list, and the “last” element points back to the “first” element in the list, thereby making it circular.
Tx/Rx rings are often implemented in hardware, as a part of an interface controller. These controllers have buffers to store excessive received or transmitted frames, and the buffers are circular in nature – with limited space, and if overfilled, the most recent entry overwrites the least recen. What you are seeing in your exhibit are most probably the HW rings implemented inside a particular interface type.
The serial cable was used connecting the routers