List three of the seven tasks the 802.15.4 MAC layer is responsible for.
What will be an ideal response?
Generating time synchronization frames if the device is a PAN coordinator
Synchronizing to the time synchronization frames
Association and disassociation
Device security and support of security mechanisms implemented by the upper layers
Managing channel access
Giving priority for certain devices to transmit at specific times
Maintaining a reliable link (error detection); 802.15.4 uses a 16-bit ITU cyclic redundancy check for validating the data
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An electrical resistance heater is placed inside a hollow cylinder. The heater has a surface temperature of 500°F, while the inside of the cylinder is maintained at 80°F. If the surface area of the heater is 1.25 ft2, and the emissivity of the heater is 0.90, what is the net rate of radiation heat transfer from the heater?
Given: Ts = 500°F = 960 R; Tsurr = 80°F = 540 R; A = 1.25 ft2; ?= 0.90 What will be an ideal response?
What is the purpose of professional ethics and what is the ultimate penalty for violating a code of ethics of a professional society?
What will be an ideal response?
How many voltages does a BJT need, and how should they be biased?
What will be an ideal response?
During copulation, the egg secretes a chemical that attracts the sperm toward the egg
Indicate whether the statement is true or false