11.01 子段和 题目大意 给定一个长度为 \(n\) 的序列 \(a\) ,\(a_i=\{ -1,0,1 \}\) ,需要将 \(a\) 中的 \(0\) 变为 \(1\) 或 \(-1\) ,使得序列 \(a\) 的最大子段绝对值和最小. \(1\le n \le 10^6\) 解析 考虑到何为最大子段绝对值和,其为 最大前缀和 \(-\) 最小前缀和 那么我们即需要将最小前缀和最大化的情况下让最大前缀和最小 或 让最大前缀和最小化的情况下让最小前缀和最大. 这里考虑第一种写法. 先让全…

1Z0-053 争议题目解析 Summary 题目NO. 题目解析链接地址 题库答案 参考答案 考查知识点  24 http://www.cnblogs.com/jyzhao/p/5319220.html  BCE  BCD  SQL Test Case Builder  25 http://www.cnblogs.com/jyzhao/p/5265330.html  D  CDE  Additional Flashback Operations  46 http://www.cnblogs.c…

1Z0-053 争议题目解析25 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 25.You enabled Flashback Data Archive on the INVENTORY table. Which DDL operation is supported on the table after enabling Flashback Data Archive? A. Drop the table. B. Partition the table C. Truncate…

1Z0-053 争议题目解析24 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 24.Which of the following information will be gathered by the SQL Test Case Builder for the problems pertaining to SQL-related problems? (Choose all that apply.) A. ADR diagnostic files B. all the opt…

1Z0-053 争议题目解析46 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 46.What happens when you run the SQL Tuning Advisor with limited scope? A. Access path analysis is not performed for SQL statements. B. SQL structure analysis is not performed for SQL statements. C. S…

1Z0-053 争议题目解析86 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 86.Your production database is running in archivelog mode and you are using recovery manager (RMAN) with recovery catalog to perform the database backup at regular intervals. When you attempt to resta…

1Z0-053 争议题目解析134 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 134.You are managing an Oracle Database 11g database. You want to take a backup on tape drives of the USERS tablespace that has a single data file of 900 MB. You have tape drives of 300 MB each. To a…

1Z0-053 争议题目解析154 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 154.A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message: Which is the recommended sequence of operations you need to perform for th…

1Z0-053 争议题目解析175 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 175.You are peer reviewing a fellow DBAs backup plan for his NOARCHIVELOG mode database, as shown here: Put the tablespaces in backup mode. Back up the datafiles for all tablespaces. Take the tablesp…

1Z0-053 争议题目解析212 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 212.Note the following parameters settings in your database: SGA_MAX_SIZE = 1024M SGA_TARGET = 700M DB_8K_CACHE_SIZE = 124M LOG_BUFFER = 200M You issued the following command to increase the value of…

1Z0-053 争议题目解析304 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 304.What privileges must be granted to allow an account to create the recovery catalog? (Choose all that apply.) A. RECOVERY_CATALOG_OWNER B. DBA C. RESOURCE D. SELECT ANY DICTIONARY E. CONNECT Answe…

1Z0-053 争议题目解析314 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 314.Given the following RMAN commands, choose the option that reflects the order required to restore your currently operational ARCHIVELOG-mode database. A. restore database; B. recover database; C.…

1Z0-053 争议题目解析330 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 330.What will be the end result of this set of RMAN commands? shutdown abort startup mount restore datafile 4 until time ,,09/30/2008:15:00:00; recover datafile 4 until time ,,09/29/2008:15:00:00; al…

1Z0-053 争议题目解析346 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 346.What is the impact of the results of the output of the following command? RMAN>report unrecoverable database; Report of files that need backup due to unrecoverable operations File Type of Backup…

1Z0-053 争议题目解析419 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 419.In Oracle 11g, by default which one of the following conditions implicitly enables Automatic PGA Memory Management? A. Setting a nonzero value for SGA_TARGET B. Configuring Automatic Shared Memor…

1Z0-053 争议题目解析470 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 470.Which NLS parameter can be used to change the default Oracle sort method from binary to linguistic for the SQL SELECT statement? A. NLS_LANG B. NLS_COMP C. NLS_SORT D. None of the above Answer: D…

1Z0-053 争议题目解析481 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 481.Which statement is true about a running session that belongs to the online transaction processing (OLTP) group? A. It permanently switches to the low_group consumer group if the session exceeds 1…

1Z0-053 争议题目解析486 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 486.You execute the following Recovery Manager (RMAN) commands in (he following order: BACKUP VALIDATE DATABAE RECOVER CORRUPTION LIST; Which (two tasks are performed by these commands? (Choose two.)…

1Z0-053 争议题目解析498 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 498.The database Is configured in ARCHIVELOG mode. The database needs to be up 24 X 7. You want to perform user managed backup for the data files of the HR_DATA tablespace. To accomplish the task, yo…

1Z0-053 争议题目解析501 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 501.Note the output of the following query; SQL>SELECT flashback_archieve_name, status FROM dba_flashback_archieve; FLASHBACK_ARCHIEVE_NAME STATUS FLA1 You executed the following command to enable Fl…

1Z0-053 争议题目解析502 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 502.A database is running In ARCHIVBXXMS mode. It has two online redo log groups and each group has one member. A LGWR Input/output (I/O) fells due to permanent media failure that has resulted In the…

1Z0-053 争议题目解析505 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 505.You configured the default backup device type as disk for RMAN backups. In your database, because of business requirements, you have to take a simultaneous duplicate backup of the data files when…

1Z0-053 争议题目解析510 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 510.You executed the following command in Recovery Manager (RMAN): RMAN>REPORT NEED BACKUP days 3; What is the output of this command? A. a list of files that require a backup within three days B. a…

1Z0-053 争议题目解析512 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 512.Which two statements correctly describe the relationship among the Scheduler components: job, program, and schedule? (Choose two) A. A job is specified as part of a program definition B. A progra…

1Z0-053 争议题目解析520 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 520.Which of the following are not disabled by default? A. Jobs B. Chains C. Windows D. Window groups E. Schedule Answer: E 争议点: 网上有人说选择A, "标记为正确答案,不看answer版"题库跟原题库一致,都是E选项. 网上也有人说E 比如: LuiseDal…

1Z0-053 争议题目解析541 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 541.If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string, what happens to disks that are already a part of the same or another disk group? A. The command fails unle…

1Z0-053 争议题目解析577 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 577.What methods are available to recover lost control files? (Choose all that apply.) A. Backup control file. B. Emergency control file. C. The create controlfile command. D. The restore controlfile…

1Z0-053 争议题目解析606 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 606.Identify the channel settings that can be performed using the CONFIGURE CHANNEL or ALLOCATE CHANNEL commands in RMAN (choose all that apply) A. Limiting the input/output (I/O) bandwidth consumpti…

1Z0-053 争议题目解析607 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 607.Examine the following scenario: -Database is running in ARCHIVELOG mode. -Complete consistent backup is taken every Sunday. -On Tuesday the instance terminates abnormally because the disk on whic…

1Z0-053 争议题目解析681 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 681.The environmental variable ORACLE-BASE is set. You want to check the diagnostic files created as part of the Automatic Diagnostic Repository (ADR). View the Exhibit and note the various parameter…