Answer:
require direct line-of-sight scanning.
Explanation:
Unlike radio frequency identification (RFID) tags, bar codes require direct line-of-sight scanning. Meaning you need a device that can scan the bar code and the scanner needs to be directly pointing at the barcode without anything in the way. This is because bar codes work by embedding the information in a design of lines that need to be scanned to retrieve the information. If anything gets in the way it interrupts the scanning process and the data is not correctly transmitted. RFID tags on the other hand do not need a direct line of sight since the information is transferred through radiofrequency. This allows the data to be transferred without a line of sight and at a distance of up to 300ft.
Answer:
Unique 32-bit number assigned to every machine on the internet
Explanation:
Internet Protocol is a numerical representation that uniquely identifies a device on a network, like Internet for instance. An IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask.
An IPv4 address contains 4 octets, so it's a total 32 bits long while addresses in IPv6 are 128-bits long.
Because it is the back-end programming. It is the basis of all of the other computer languages and allows the computer to function.
Answer: Task manager
Explanation: The task manager window represents an interface in personal computers manufactures by Microsoft. The task manager window contains several information about a computers current processes usually displayed in graphical manner, in addition it provides information on the current running processes and application, the uptime of the computer, the graphic processor. With the task manager window users can set process priorities and prioritize applications, by affording users to view process and their corresponding load on the CPU, users can terminate or close applications from within the task manager interface. Hence non-responsuve programs can be viewed and terminated.
A is wrong.
B is correct.
C is true but magnetic monopoles have been predicted in theory, but never found in practice.
