You are the DBA for an academic database. You need to create a role that allows a group of users to modify existing rows in the STUDENT_GRADES table. Which set of statements accomplishes this? （） CREATE ROLL registrar; GRANT MODIFY ON student_grant TO registrar; GRANT registrar to user 1, user2, user3。 CREATE NEW ROLE registrar; GRANT ALL ON student_grant TO registrar; GRANT registrar to user 1, user2, user3。 CREATE ROLL registrar; GRANT UPDATE ON student_grant TO registrar; GRANT ROLE to user1, user2, user3。 CREATE ROLL registrar; GRANT UPDATE ON student_grant TO registrar; GRANT registrar to user 1, user2, user3;。 CREATE registrar; GRANT CHANGE ON student_grant TO registrar; GRANT registrar。
表现房地产的自然特性是（）。 不可移动性。 独一无二性。 供求区域性。 效用持久性。
Which command will change the user webserver’s shell to ksh93？（） chshell -ksh93 webserver。 chsh webserver /usr/bin/ksh93。 chuser -a shell=/usr/bin/ksh93 webserver。 setuid -a SHELL=/usr/bin/ksh93 -u webserver。
人格发展中（）的普遍现象。
A customer has two separate storage islands and is planning to implement an SVC to provide forFlashCopy between the two islands. What is the minimum number of inter-switch links （ISLs） thatare required？（） 0。 1。 2。 4。
A customer wants to migrate their existing compute-intensive POWER6 570 to a Power 770. Which of their existing I/O adapters can be migrated to Power 770 enclosures?（）
