试题(71)~(75)A Bluetooth device can be either a master or a slave and any of the devices w
试题(71)~(75)
A Bluetooth device can be either a master or a slave and any of the devices within a (71)can be the master. There is only one master and there can be up to (72) active slave devices at a time within a single network. In addition, a device may be a standby slave or a parked slave. There can be up to (73) parked slaves. If there are already maximum number of active slaves, then a parked slave must wait until one of the active slaves switches to (74) mode before it can become active. Within a network, all (75) communications are prohibited.
(71)
A. Wireless LAN
B. Wireless MAN
C. Cellular radio network
D. Piconet
(72)
A. 7
B. 15
C. 63
D. 255
(73)
A. 127
B. 255
C. 511
D. 1023
(74)
A. master
B. standby slave
C. parked slave
D. active slave
(75)
A. master-to-master
B. master-to-slave
C. slave-to-slave
D. slave-to-master
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