• 2022-05-28
    What are the two main functions of transaction management in OLTP systems?
    A: Information prediction
    B: Concurrency control
    C: Data collection
    D: Recovery from failures
  • B,D

    内容

    • 0

      All of the following statements regarding accounting information systems are true except: A: Accounting information systems do not establish internal control procedures. B: Accounting information systems collect and process data from transactions and events. C: Accounting information systems are crucial to effective decision making. D: Accounting information systems communicate information to business decision makers.

    • 1

      The main functions of the database management system are () A: database maintenance B: data calculation C: data manipulation D: data definition

    • 2

      Which two activities are NOT supported by the Data Recovery Advisor?() A. Diagnose and repair a data file corruption offline. B. Diagnose and repair a data file corruption online. C. Diagnose and repair failures on a standby database. D. Recover from failures in the Real Application Cluster (RAC) environment.

    • 3

      ______________ is the process of gathering and organizing information from users, managers, business processes, and documents to understand how a proposed information system should function. A: Requirements collection B: Systems collection C: Systems analysis D: Records archiving

    • 4

      What is the main technology underpinning knowledge processing systems? A: Data mining B: Data warehouse C: Database D: Data webhouse