Question 367 To find the second highest salary from Employees table, which of the following query is true? A Select max (salary) from employees where salary […]
Question 378 Consider following three statements about Data Encryption Standard (DES). (I) DES uses a 56 bit key to encrypt 64 bit data blocks. (II) DES […]
Question 365 While restarting recovery, which sequence is followed? A Undo transactions of undo-list; redo transactions of redo-list. B Reo transactions of redo-list; undo transactions of […]