In India, rural incomes are generally lower than the urban incomes, which of the following reasons account for this? A large number of farmers are illiterate and know little about scientific agriculture Prices of primary products are lower than those of manufactured products Investment in agriculture has been low when compared to investment in industry
Performance analysis and tuning is which of the following?
Options: Undertaken one time at the time of a DBMS installation, Undertaken one time at the time of the implementation of a new application, Undertaken as an ongoing part of the backup of a database, Undertaken as an ongoing part of managing a database
Options: (A)A set of databases from different vendors, possibly using different database paradigms (B) An approach to a problem that is not guaranteed to work but performs well in most cases. (C) Information that is hidden in a database and that cannot be recovered by a simple SQL query. (D) None of these 4
Options: (A)Process of estimating the costs associated with software development projects that include the effort, time, and labor required. (B) Overall cost of maintaining a computer system that includes the costs associated with personnel / training/ maintenance of hardware and software/ requirements growth. (C) Overall cost of operating a computer system that includes the costs associated with personnel / training / system operations. (D) Overall cost of a computer system to an organization that includes the costs associated with operating/ maintaining the system, and the lifetime of operational use of the system. 16
Why does the data communication industry use the layered OSI reference model? It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers. It encourages industry standardization by defining what functions occur at each layer of the model.