All of the following are layers on a standard encoded CD or DVD EXCEPT the ________

ASCII code for defining characters is based on ________ code

a. hexadecimal b. binary c. RAM d. sector

What User Datagram Protocol (UDP) ports does SNMP use for secure communication?

A. 61 and 62 B. 610 and 612 C. 161 and 162 D. 10162 and 10161