An 8-bit register is used to track the status of 8 separate entities (i. e. it is a bit-vector), with 1 signifyiny the unit is free, 0 that it is busy. As always, the bits are labelled from right to left as 0 through 7 For questions a) through d), provide the appropriate bit-mask and operation (and, or, not, xor) required to accomplish the task, and the outcome that answers the query. Remember: 1 => free; 0> busy a) Determine whether unit 2 (the third unit) is free or busy; what outcome indicates that it is busy? bit-mask: operation: outcome if unit 2 is busy:
b) Determine if both machines 2 and 6 are free; what outcome indicates that they are free? bit-mask: operation: outcome if both units are free:
c) Determine if all units are busy (i. e. no units are free); what outcome indicates that it is is the case? bit-mask: operation: outcome if all units are busy:
d) Determine if all units are free (i. e. no units are busy); what outcome indicates that it is is the case? bit-mask: operation: outcome if all units are free:
e) Force unit 5 to busy (0), leaving all other units unchanged. The outcome of the operation will be written back over the original bit-vector. bit-mask:

Local area networks use many of the same network technologies and the internet, only on a smaller scale. devices that access lans are equipped with a network interface that contains circuitry for wireless or wired connections. devices also have a physical address, in addition to the ip addresses acquired from a dhcp server. the most popular wired technology is . the most popular wireless technology is , which can be configured as a(n) or star topology. setting up a lan and configuring its router is fairly easy. the first step is to change the standard to one that is secure. next, create a(n) that uniquely identifies the network by name. it is also important to activate wireless to prevent wireless signals from being intercepted during transmission. a limited-access network can be created for visitors to use. by activating , the router will be able to assign ip addresses to each device that joins the network. to connect to a secure lan that is protected by encryption, an encryption , or password, is required. lans can be used to access data collected by iot devices and the networks that tie these devices together. technologies such as rfid, nfc, bluetooth smart, zigbee, and z-wave offer -power links, essential for battery-powered devices that can’t expend excess amounts of energy transmitting data.