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{"ops":[{"insert":"QUESTION 28\nWhich one of the following statements is NOT true regarding hashing methods for file\u00a0\nsearching?\n1. In modulo division hashing, the key is divided by the file size and the remainder plus one is\u00a0\nused for the address of the record.\n2. In digit extraction hashing, selected digits are extracted from the key and used as the\u00a0\naddress of the record.\n3. In direct hashing, no algorithmic manipulation is done, so the file must contain a record for\u00a0\neach possible key.\n4. Modulo division hashing guarantees no collisions or synonyms.\nQUESTION 29\nIn file processing, collision occurs when\u2026\n1. ...the file is not big enough to hold all the data records.\n2. \u2026two files are open in memory at the same time.\n3. \u2026the data in the file contains two synonyms, i.e. two keys collide at the home address.\n4. \u2026the prime area is inaccessible.\n"}]}
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