Answer:
cluster
Explanation:
A cluster in a computer system is a collection of servers and other resources that work together to provide high reliability and, in certain situations, load balancing and parallel processing.
Answer:
b. Associativity
Explanation:
Associativity specifies the order in which operators are processed vis a vis operands/values in an expression. For example: Consider the expression: a + b + c. Here a + b is evaluated first before adding the result with c as the '+' operator is left associative. The default associativity can also be overridden by the use of parentheses. For example a + (b + c) . In this case b+c will be evaluated first.
Answer:
keys in a worst case scenario
Explanation:
So, Average will be : 
(Answer)