TAILIEUCHUNG - OCA /OCP Oracle Database 11g A ll-in-One Exam Guide- P80

OCA /OCP Oracle Database 11g A ll-in-One Exam Guide- P80:There is an ever increasing demand for staff with IT industry certification. The benefits to employers are significant—they can be certain that staff have a certain level of competence—and the benefits to the individuals, in terms of demand for their services, are equally great. Many employers are now requiring technical staff to have certifications, and many IT purchasers will not buy from firms that do not have certified staff. | OCA OCP Oracle Database 11g All-in-One Exam Guide 746 12. 0 A and B. Both these approaches are reasonable. 0 C and D. C is impossible. D would work but at the price of losing your current table. 13. 0 E. Flashback drop is not applicable to any of these scenarios. 0 A B C and D. A will not put anything in the recycle bin B will remove the table from the recycle bin. C bypasses the recycle bin. D is wrong because even though indexes do go into the recycle bin when you drop their table they do not go in there if they are dropped individually. 14. 0 C. Flashback drop will recover the most recent table. 0 A B and D. If tables have the same original name they are recovered on a last-in-first-out basis. 15. 0 C. Table flashbacks are implemented as one transaction which like any other transaction will be rolled back if it hits a problem. 0 A B and D. A and B are wrong because a table flashback must succeed in total or not at all. D would be a way around the difficulty but it is certainly not a requirement for flashback and probably not a good idea. 16. 0 C. This is the only way to guarantee success. 0 A B and D. A and B could both fail depending on the nature of the changes. D confuses Flashback Table when foreign key constraints are maintained with Flashback Drop where they are dropped. 17. 0 D. It is only Flashback Table that requires row movement. 0 A B and C. A is wrong because the object number is preserved through the DROP and FLASHBACK . . . TO BEFORE DROP operations. B is wrong because ROWIDs always refer to the table the row is a part of. C is wrong because flashback of one transaction can proceed without row movement being required. 18. 0 A. The FBDA manages the contents of Flashback Data Archives. 0 B C and D. RVWR writes to the flashback logs CTWR records changed blocks addresses for RMAN fast incremental backups the ARCn process es write archive log files. 19. 0 A B and D. A and B would remove necessary information from the data dictionary and D would not .

TỪ KHÓA LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.