Q.

                 specification defining the PHY and MAC layer of low power devices.

A. ietf 6lowpan
B. ieft coap
C. rfid/nfc
D. ieee 802.15.4.lowpan
Answer» D. ieee 802.15.4.lowpan
Explanation: ieee 802.15.4.lowpan – specification defining the phy and mac layer of low power devices supporting 250 kb/s data rate, small packet size 127 bytes.
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