Answer:
Option D
Explanation:
Artificial intelligence is a technology where the information gathered in the past is processed for the future actions.
Here, based on the preferences of customer in the past and purchase history, AI can suggest the customer new products and services
Hence, option D is correct
Answer: Hub
Explanation:
Hub is a electronic and networking device that is placed in a network to maintain a common link with the multiple attached devices. Hub is situated at the physical layer of the Open systems interconnection(OSI) model.
- Hub is used for creation of link between numerous local area network sections as it persist various ports which replicates data packet and distributes to other ports.
- There are different types of hub for different purpose of connection such as USB hub, Ethernet hub etc.
Answer:
b. & Puihaha
Explanation:
PHP variables are supposed to start with a $ sign.
Other rules followed by PHP variables are:
Starting character in variable name (after $) must be letter or _.
Other characters in variable names can be letters,numbers or _.
a. $_Puihaha
c. $Pui_haha
d. $Puihaha
satisfy these rules.
Whereas , b. & Puihaha does not satisfy as it starts with '&'. Moreover it also contains an invalid space character in the variable.
Use persuasion, meaning persuade them to stop
