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CHALLENGE ACTIVITY 6.5.1: Transactions with SQL. Jump to level 1 1 2 session begins SET autocommit = OFF; session ends Select each statement's transaction boundary. Start End statement 2 statement 4 session begins statement 1 COMMIT; statement 2 statement 3 statement 4 ROLLBACK AND CHAIN; statement 5 START TRANSACTION; statement 6 statement 7 statement 8 session ends OOOO statement 5 statement 7 2 Check Next ACTIVITY 6.1.1: Requirements for efficient memory management. Jump to level 1 Memory contains 6 holes with their sizes shown in the table. Hole A B D E F Size 110 100 120 130 90 60 A sequence of requests for 3 blocks have arrived with sizes 70, 20, and 10 Select the hole allocated to each request by the best-fit allocation strategy. Block with size 70: Select Block with size 20: Select Block with size 10: Select Enter the number of holes that best-fit had to examine to allocate the 3 blocks if the holes are as given in the table (not sorted by size) Ex: 2 O Enter the number of holes that best-fit would have to examine to allocate the 3 blocks if the holes were always maintained in sorted order (ascending by hole size). 3 Check Next