Which of the following is correct regarding Aggregate functions?
Options: it takes a list of values and return a single values as result
B. it takes a list of values and return a list of values as result
C. it takes a single value and returns a list of values as result
D. it takes a single value and returns a single value as result
4.A physical item is one which may be delivered or performed
Options: (A)entirely through a telecommunications network (B) involves logistical activities such as the transportation of goods, or of the person and/or facilities whereby the service will be performed 1
What is the purpose of 'United Nations Conference on Trade and Development' (UNCTAD)?
Options: Promotes International Trade with a view to accelerate economic growth of developing countries, Promotes International Monetary co-operation & expansion of International Trade, Set rules for World Trade, None of the above
Options: using several computers to control one large machine, using one computer to control several machines, complete elimination of a need for a human operator., eliminating computers from the manufacturing process