Question

RPL supports: a. Message confidentiality b. Loop detection in the routes c. Data path validation d. All of these

Answer 1

The answer is Option D.

RPL supports message confidentiality, loop detection in the routes and data path validation.

RPL refers to Requester’s Privilege Level and can be used to lower the current privilege level (CPL). Irrespective of what is actually loaded, the RPL value is always set to be the same as that of the CPL.

Answer 2

RPL supports all of these.

Option: D

Explanation:

• Primarily, RPL supports message integrity and message confidentiality. It is designed in such a way that the link based layer can be used for appropriate situations.  

• It has three security modes. RPL supports data path validation and lop detection in the given routes.

• Infrequent and transient changes are not to be addressed by RPL until there is a data to send.  

• It has loop avoidance mechanism during the topology changes by using various data path validation mechanisms.