A Bluetooth device can be either a maste

最全题库2022-08-02  35

问题 A Bluetooth device can be either a master or a slave and any of the devices within a ( )can be the master. There is only one master and there can be up to  ( ) 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  (请作答此空)  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  ( ) mode before it can become active. Within a network, all  ( ) communications are prohibited.A.127B.255C.511D.1023

选项 A.127
B.255
C.511
D.1023

答案 B

解析 蓝牙设备可以是一个主设备也可以是一个从设备,位于()中的任一设备都可以成为主设备。在一个网络中只有一个主设备,最多有 ( )个激活的从设备。另外,一个设备可以是活跃的从设备或是休眠的从设备,最多有(请作答此空)个休眠的从设备。如果已有最大数量的活跃从设备,那么,一个休眠的从设备就必须等到某活跃从设备切换到( )模式后才能被激活。在一个网络内,所有的( )通信都是被禁止的。
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