Use of a supertype/subtype relationship is necessary when which of the following exists?
Options: An instance of a subtype participates in a relationship that is unique to that subtype., An instance of a subtype participates in a relationship that is the same as the other subtypes., Attributes apply to all of the instances of an entity type., No attributes apply to any of the instances of an entity type.
Options: is a device that performs a sequence of operations specified by instructions in memory., is the device where information is stored, is a sequence of instructions, is typically characterized by interactive processing and time of the CPU's time to allow quick response to each user.
Options: (A)The conduct of business with the assistance of telecommunications and telecommunications-based tools (B) The conduct of commerce in goods and services, with the assistance of telecommunications and telecommunications-based tools (C) It refers to means whereby sellers can communicate their offerings to potential buyers. (D) None of these
The significant shifts in Indian agriculture during green revolution include
Options: non-food grains reported some spectacular progress and shift in the cropping pattern, major food grains, in the eastern regions productions decreased and in the northern states increased, both (a) and (b), None of the above
Options: (A)Replaces the page in memory that has not been referenced for the least time. (B) Replaces the page in memory that has not been referenced for the longest time. (C) Replaces the page in memory in round robin fashion. (D) None of these. 10