A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）A、Acquire locks on table queried B、Generate redo for statement C、Fetch data from disk into memory D、Write changes to disk
A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）
- A、Acquire locks on table queried
- B、Generate redo for statement
- C、Fetch data from disk into memory
- D、Write changes to disk
相关考题：
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query:SQL SELECT * FROM sales;Which process would retrieve the result from the database and return it to the client program?（）A. User processB. Server processC. System Monitor (SMON)D. Process Monitor (PMON)E. Checkpoint process (CKPT)
The DBA issues this SQL command: CREATE USER scott IDENTIFIED by tiger; What privileges does the user Scott have at this point?() A. no privilegesB. only the SELECT privilegeC. only the CONNECT privilegeD. all the privileges of a default user
The user Sue issues this SQL statement:GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement:GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Reena issues this SQL statement:GRANT SELECT ON sue. EMP TO timber;The user Sue issues this SQL statement:REVOKE select on sue. EMP FROM alice;For which users does the revoke command revoke SELECT privileges on the SUE.EMP table?（）A. Alice onlyB. Alice and ReenaC. Alice, Reena, and TimberD. Sue, Alice, Reena, and Timber
View the Exhibit for some of the current parameter settings. A user logs in to the HR schema and issues the following commands:SQL CREATE TABLE emp(empno NUMBER(3),ename VARCHAR2(20),sal NUMBER(8,2));SQL INSERT INTO emp(empno,ename) VALUES(1,‘JAMES‘);At this moment, a second user also logs in to the HR schema and issues the following command:SQL ALTER TABLE emp MODIFY sal NUMBER(10,2);What happens in the above scenario?（）A. The second user‘s session immediately produces the resource busy error.B. The second user‘s command executes successfully.C. The second user‘s session waits for a time period before producing the resource busy error.D. A deadlock is created.
The DBA issues this SQL command:What privileges does the user Scott have at this point?() A. No privileges.B. Only the SELECT privilege.C. Only the CONNECT privilege.D. All the privileges of a default user.
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Which of the following describes the BEST course of action when a user continuously calls atechnician with computer issues instead of the helpdesk?（）A、Put all other work orders on hold and assist the user with all their computer issues.B、Have another technician take over support calls for this user.C、Explain that the user needs to fill out a work order for the computer problems.D、Ask the user to call another technician for more in-depth assistance.
In a TCP/IP network， which of the following protocols is involved when a user issues a ping command？（）A、TCPB、UDPC、ICMPD、SMTP
Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）A、User processB、Server processC、System Monitor (SMON)D、Process Monitor (PMON)E、Checkpoint process (CKPT)
The DBA issues this SQL command:CREATE USER scott IDENTIFIED by tiger;What privileges does the user Scott have at this point?（）A、no privilegesB、only the SELECT privilegeC、only the CONNECT privilegeD、all the privileges of a default user
The DBA issues this SQL command: CREATE USER scott IDENTIFIES by tiger; What privileges does the user Scott have at this point? （）A、No privileges.B、Only the SELECT privilege.C、Only the CONNECT privilege.D、All the privileges of a default user.
User A issues the command: LOCK TABLES pets READ; Which command can User B execute against the pets table?（）A、UPDATE pets…B、SELECT….FROM petsC、INSERT INTO pets…D、ALTER TABLE pets…
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单选题The DBA issues this SQL command: CREATE USER scott IDENTIFIED by tiger; What privileges does the user Scott have at this point?（）Ano privilegesBonly the SELECT privilegeConly the CONNECT privilegeDall the privileges of a default user
单选题The user Sue issues this SQL statement: GRANT SELECT ON sue. EMP TO alice WITH GRANT OPTION; The user Alice issues this SQL statement: GRANT SELECT ON sue. EMP TO reena WITH GRANT OPTION; The user Reena issues this SQL statement: GRANT SELECT ON sue. EMP TO timber; The user Sue issues this SQL statement: REVOKE select on sue. EMP FROM alice; For which users does the revoke command revoke SELECT privileges on the SUE.EMP table?（）AAlice onlyBAlice and ReenaCAlice, Reena, and TimberDSue, Alice, Reena, and Timber
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session， and issues the following query： SQL SELECT * FROM sales； Which process would retrieve the result from the database and return it to the client program？（）A User processB Server processC System Monitor （SMON）D Process Monitor （PMON）E Checkpoint process （CKPT）
单选题A user issues a SELECT command against the Oracle database. Which of the following choices describes a step that Oracle will execute in support of this statement?（）AAcquire locks on table queried BGenerate redo for statement CFetch data from disk into memory DWrite changes to disk
单选题Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）AUser processBServer processCSystem Monitor (SMON)DProcess Monitor (PMON)ECheckpoint process (CKPT)
单选题A user reports that they are unable to reach a particular website. The user had no issues reaching the site earlier in the day. Which of the following is the MOST likely cause of the lack of access？（）AThe VLAN is misconfiguredBThe user has an improperly configured NICCThe DHCP server is downDThe DNS server is down
单选题The user HR owns the EMP table. The user HR grants privileges to the user SCOTT by using this command： SQL GRANT SELECT，INSERT，UPDATE ON emp TO scott WITH GRANT OPTION； The user SCOTT executes this command to grant privileges to the user JIM： SQL GRANT SELECT，INSERT，UPDATE ON hr.emp TO jim； Now， the user HR decides to revoke privileges from JIM using this command： SQL REVOKE SELECT，INSERT，UPDATE ON emp FROM jim； Which statement is true after HR issues the REVOKE command（）AThe command fails because SCOTT still has privileges.BThe command succeeds and privileges are revoked from JIM.CThe command fails because HR cannot revoke the privileges from JIM.DThe command succeeds and only HR has the privilege to perform the SELECT， INSERT， and UPDATEoperations on the EMP table.
单选题The DBA issues this SQL command: CREATE USER scott IDENTIFIES by tiger; What privileges does the user Scott have at this point? （）ANo privileges.BOnly the SELECT privilege.COnly the CONNECT privilege.DAll the privileges of a default user.
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