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单选题
政府采购货物和服务招标,资格预审公告的期限不得少于( )。
A
7个工作日
B
5个工作日
C
5日
D
7日
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考题
单选题In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the data file in a different location while restoring the file. Which option must you consider for this task?()A
using only the RMAN SWITCH command to set the new location for the data fileB
placing the database in the MOUNT state for the restore and recovery operations.C
using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.D
configuring two channels: one for the restore operation and the other for the recovery operation
考题
多选题税收法律执行事前规定具有以下哪些基本特点?()A税收法律执行事前规定是税务机关根据其对税收法律的立法精神、法律规则语义等方面的理解作出的B税收法律执行事前规定是税法颁布实施之后,税收义务人履行税收义务之前,由税务机关依法作出的C税收法律执行事前规定一般是因纳税人自主确定税收义务的需要,由纳税人提起,由税务机关作出的D税收法律执行事前规定客观上成为约束税务机关税收执法活动的重要依据,也是指引纳税人正确履行税收法定义务的重要服务措施E税收法律执行事前规定必须采取书面形式
考题
问答题2017年3月18日,甲机械公司与乙融资租赁公司接洽融资租赁某型号数控机床事宜。同年4月1日,乙按照甲的要求与丙精密设备公司签订了购买1台某型号数控机床的买卖合同。丁以乙的保证人身份在该买卖合同上签字,但合同中并无保证条款,丙和丁亦未另行签订保证合同。乙和丙之间签订的买卖合同约定:机床价格为1200万元;乙在缔约当日向丙支付首期价款400万元;丙在收到首期价款后1个月内将机床交付给甲;乙在之后的8个月内,每月向丙支付价款100万元。
乙于与丙签订合同当日,与甲签订了融资租赁合同,但该合同未就租赁期届满后租赁物所有权归属作出约定。2017年5月1日,丙依约向甲交付了机床。2017年8月8日,甲在未告知乙的情况下,以所有权人身份将机床以市场价格出售给戊公司。戊不知甲只是机床承租人,收到机床后即付清约定价款。乙知悉上述情况后,以甲不是机床所有权人为由,主张甲、戊之间的买卖合同无效,并主张自己仍为机床所有权人,要求戊返还机床。2017年11月2日,由于乙连续3个月未付机床价款300万元,丙要求乙一次性支付到期和未到期的全部价款共500万元。乙认为丙无权要求支付尚未到期的200万元价款,并拒绝支付任何款项;丙遂要求丁承担保证责任。丁予以拒绝,理由有二:第一,自己仅在买卖合同上以保证人身份签字,既无具体的保证条款,亦无单独的保证合同,因此保证关系不成立;第二,即使保证成立,因未约定连带责任保证,所成立的也只是一般保证,丙不应在人民法院执行乙的财产之前要求自己承担保证责任。乙关于甲与戊之间的机床买卖合同无效的理由是否成立?并说明理由。
考题
单选题You are using Recovery Manager (RMAN) with a recovery catalog to back up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. Because of media failure, you lost your production database completely along with the recovery catalog database. You want to recover the target database and make it functional. You could consider performing the following steps to accomplish this task: 1) Restore an autobackup of the server parameter file. 2) Restore the control file. 3) Start the target database Instance. 4) Mount the database. 5) Restore the data files. 6) Open the database with the RESETLOGS option. 7) Recover the data files. 8) Set DBID for the target database Which option illustrates the correct sequence that you must use?()A
8, 1, 3, 2, 4, 5, 7, 6B
1, 8, 3, 4, 2, 5, 7, 6C
1, 3, 4, 2, 8, 5, 6, 7D
1, 3, 2, 4, 6, 5, 7, 8
考题
单选题You have joined a new organization as a Database Administrator. The Security Administrator in your organization has kept human errors, such as erroneously dropping users, tables, and important data, to a minimum by carefully granting only the necessary privileges to each user. As a result of several ongoing transactions within your database, you discover that the flashback logs are rapidly increasing in the flash recovery area. To avoid out-of-space errors, you decide to delete the flashback logs from the flash recovery area. How can you delete the flashback logs from the database if your database is up and running?()A
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.B
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement while the database is up and running.C
Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command. Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.D
Change the parameter setting in the SPFILE for the DB_RECOVERY_FILE_DEST parameter using the ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’’ SCOPE=BOTH statement. Shut down the database using the SHUTDOWN command. Mount the database using the STARTUP MOUNT EXCLUSIVE command and disable Flashback Database using the ALTER DATABASE FLASHBACK OFF statement.
考题
判断题不同品牌笔记本电脑的适配器完全可以通用。A
对B
错
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