Each managed object on a managed device using SNMP is assigned which of the following?

Determine the difference in days between the first start time of a class and the last start time for a course when the course has more than one section .

What will be an ideal response?

At which layers of the OSI model do 802.11 wireless LANs function?  (Choose all that apply.)

A. Physical B. Data Link C. Network D. Transport