ITEE ITEE-1 | Página 391

Technology Q57. Which of the following are the virus that infect files created with word processing and spreadsheet software? a) b) c) d) Q58. Which of the following is the system in database management systems that performs searches and updates data within the database online at the request of clients connected to the server? a) b) c) d) Q59. Dual system Online transaction processing system Duplex system Client/server system When selecting four (4) numbers from one (1) to twenty (20), which of the following are the odds of selecting the same four (4) numbers as the winning ticket? Each number can only be selected once. a) b) c) d) Q60. Boot sector viruses Program viruses Stealth viruses Macro viruses 1/24 1/480 1/4845 1/16000 When comparing two-layer and three-layer client/server systems, which of the following is descriptive of three-layer systems? a) Application development and maintenance work is less efficient. b) The communications traffic between the client and server is more easily increased. c) Even if the data processing logic is changed, the impact on the client module can be kept to a minimum. d) The database used is split into three functional layers, so performance is improved. 385