专业技术初级资格程序员基础知识DB2

试卷预览

• 71Which method for restricting data access relies on a SQL search condition that describes what set of rows a user has access to、

  A.Authentication

  B.Authorities and privileges

  C.Label-based access control

  D.Row and column access control

  开始考试练习点击查看答案
• 72Which SQL statement will take the ability to create tables in a table space named MYTBSP away from user USER1、

  A.REVOKE USE OF TABLESPACE mytbsp FROM user1

  B.REVOKE ALTER ON TABLESPACE mytbsp FROM user1

  C.REVOKE UPDATE OF TABLESPACE mytbsp FROM user1

  D.REVOKE CREATETAB ON TABLESPACE mytbsp FROM user1

  开始考试练习点击查看答案
• 73In a trusted context environment, if a switch request is made with an authorization ID that is not allowed on a trusted connection, what state is the connection placed in、

  A.Locked

  B.Waiting

  C.Pending

  D.Unconnected

  开始考试练习点击查看答案
• 74When is a mask used to limit access to data in a table、

  A.When mandatory access control (MAC) is used to protect the table.

  B.When discretionary access control (DAC) is used to protect the table.

  C.When label-based access control (LBAC) is used to protect the table.

  D.When row and column access control (RCAC) is used to protect the tabl

  开始考试练习点击查看答案
• 75What privilege is required to create a view on a table that you are not the owner of、

  A.INSERT

  B.SELECT

  C.CREATE

  D.TRIGGER

  开始考试练习点击查看答案
• 76After creating several new indexes and executing RUNSTATS, user USER1 wants to re-create apackage that is stored in the database so it will take advantage of the new indexes. Whichauthority/privilege must user USER1 be granted in order to re-create the package、

  A.BIND

  B.REBIND

  C.BINDADD

  D.BIND_REBIND

  开始考试练习点击查看答案
• 77Which SQL statement will give a user named USER1 the ability to run an embedded SQL application named BENEFITS that calls a package named CORPDAT

  A.PKGA、A. GRANT EXECUTE ON APPLICATION benefits TO user1

  B.GRANT EXECUTE ON PACKAGE corpdata.pkga TO user1

  C.GRANT EXECUTE ON APPLICATION PACKAGE corpdata.pkga TO user1

  D.GRANT EXECUTE ON APPLICATION benefits USING PACKAGE corpdata.pkga TO user1

  开始考试练习点击查看答案
• 78Which of the following privileges allow a user to update the comment on a sequence、

  A.ALTER

  B.USAGE

  C.UPDATE

  D.COMMENT

  开始考试练习点击查看答案
• 79Which statement is valid about the Row and Column Access Control (RCAC) feature、

  A.A row mask's access control rule is defined by an SQL CASE expression; a column permission's access control rule is defined by an SQLsearch condition.

  B.A row permission's access control rule is defined by an SQL CASE expression; a column mask's access control rule is defined by an SQLsearch condition.

  C.A row mask's access control rule is defined by an SQL search condition; a column permission's access control rule is defined by an SQL CASEexpression.

  D.A row permission's access control rule is defined by an SQL search condition; a column mask's access control rule is defined by an SQL CASEexpression.

  开始考试练习点击查看答案
• 80Which type of table should you use if you want to define specific time periods when data is valid、

  A.Materialized query table

  B.System-period temporal table

  C.Declared global temporary table

  D.Application-period temporal table

  开始考试练习点击查看答案