You may be talking about calling via WiFi, that is where you use WiFi to call people. That is normally used in tablets where you can't have a phone provider, so you just use WiFi to call and that saves a lot of money.
Answer: Indexed
Explanation: Indexed property in the database system is for indexing .In this process reduction of the record/disk numbers results in the increase in the optimized performance. The structure of the index is in column form.
This technique rapidly provides the data from the table containing database when every query arises or requirement is proposed. Therefore the efficiency of the database increases.
Other options are incorrect because validation rule and text are regarding the verification of the data user and text respectively and expression is defined as the group of one or more value.Thus the correct option is indexed.
Answer:
# recursive method to find if list is in ascending order
def is_sorted(list, low, high):
if low >= high: # if reached end of list
return True
if list[low] > list[low+1]: # if item at low is greater than low+1
return False # return false
return True and is_sorted(list, low+1, high) # or return True and recursion call to low+1
Explanation:
