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单选题
Which statement describes the ROWID data type?（）
A
Binary data up to 4 gigabytes.
B
Character data up to 4 gigabytes.
C
Raw binary data of variable length up to 2 gigabytes.
D
Binary data stored in an external file, up to 4 gigabytes.
E
A hexadecimal string representing the unique address of a row in its table.
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更多 “单选题Which statement describes the ROWID data type?（）A Binary data up to 4 gigabytes.B Character data up to 4 gigabytes.C Raw binary data of variable length up to 2 gigabytes.D Binary data stored in an external file, up to 4 gigabytes.E A hexadecimal string representing the unique address of a row in its table.” 相关考题
考题
Examine the following RMAN script:Which statement describes the purpose of the script?()
A. The data file is checked for physical corruption and backed up if found clean.B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
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Which statement describes the ROWID data type? ()
A. Binary data up to 4 gigabytes.B. Character data up to 4 gigabytes.C. Raw binary data of variable length up to 2 gigabytes.D. Binary data stored in an external file, up to 4 gigabytes.E. A hexadecimal string representing the unique address of a row in its table.
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Examine the following command that is executed for the TRANSPORT table in the SH schema:Which statement describes the significance of this command?()
A. It collects statistics into the pending area in the data dictionaryB. It creates a virtual hidden column in the CUSTOMERS_OBE tableC. It collects statistics with AUTO_SAMPLE_SIZE for ESTIMATE_PERCENTD. It creates a histogram to hold skewed information about the data in the columns
考题
Examine the following RMAN script:RMAN run {debug on;allocate channel c1 type disk;backup datafile 5;}Which statement describes the purpose of the script?()
A. The data file is checked for physical corruption and backed up if found clean.B. The backup of data file 5 is performed and the interactive messages during the backup are suppressed.C. The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.D. The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
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Which one of the following describes the similarity between the stack and the queue?(30)A．logical characteristicsB．physical characteristicsC．operation methodD．element type
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Which of the following BEST describes a hub?（）A、Determines the best route to transmit dataB、Inspects traffic and accepts or declines transmissionC、Broadcasts data to specific network devicesD、Broadcasts data to all network devices
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Which statement best describes OSPF external LSAs （type 5）？（）A、OSPF external LSAs are automatically flooded into all OSPF areas， unlike type 7 LSAs， which require that redistribution be configured.B、External LSAs （type 5） are automatically changed to type 1 LSAs at ASBRs.C、Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.D、External network LSAs （type 5） redistributed from other routing protocols into OSPF are not permitted to flood into a stub area.
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Which statement correctly describes a situation in which VRFs are used in the data center?（）A、Partitioning of network resources is enabled.B、VRFs cannot support path isolation from MAN/WAN designs.C、VRFs cannot be used to map a virtualized data center to a MPLS implementation.D、VRFs do not allow for the use of application services with multiple access topologies.E、An access design using a VRF allows for an aggregation layer service module solution.
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WebSphere Commerce categorizes store data into several categories. Prices， Contracts， and Campaigns are all examples of which type of data？（）A、operationalB、managedC、configurationD、coreE、instance
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Which of the following supports the XML data type?（）A、A unique indexB、A composite indexC、A check constraintD、A generated column
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Which three are true?（）A、A MERGE statement is used to merge the data of one table with data from another.B、A MERGE statement replaces the data of one table with that of another.C、A MERGE statement can be used to insert new rows into a table.D、A MERGE statement can be used to update existing rows in a table.
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Which statement is true regarding the COALESCE function?（）A、It can have a maximum of five expressions in a list B、It returns the highest NOT NULL value in the list for all rows C、It requires that all expressions in the list must be of the same data type D、It requires that at least one of the expressions in the list must have a NOT NULL value
考题
Which three statements are true regarding the data types in Oracle Database 10g/11g?（）A、Only one LONG column can be used per table B、A TIMESTAMP data type column stores only time values with fractional seconds C、The BLOB data type column is used to store binary data in an operating system file D、The minimum column width that can be specified for a VARCHAR2 data type column is one E、The value for a CHAR data type column is blank-padded to the maximum defined column width
考题
单选题The accounting manager wants you to create a form that when queried will display a calculated total of year-to-date actual expenditures for the fund code entered. The value needed to generate this summary data are stored in multiple tables. How would you define the data source for this data block without having the DBA create a database object? （）A
Choose Tools - Data Block Wizard, select View as the data source type, and base the block on the columns from the bales. B
Choose Tools - Data Block Wizard, select Table as the data source type, and base the block on the columns from the tables. C
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually and alter the Query Data Source Columns and Query Data Source Arguments properties to enter the SELECT statement. D
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually, alter the Query Data Source Type property to 'Table', and enter the SELECT statement in the Query Data Source Name property. E
Choose Tools - Data Block Wizard, select Stored Procedure as the data source type, and base the block on the columns the tables. F
Select the Data Blocks node in the Object Navigator and click the Create button. Choose to build the data block manually. Alter the Query Data Source Type to 'FROM' clause query', and enter the SELECT statement in the Query Data Source Name property.
考题
多选题Which three statements are true regarding the data types in Oracle Database 10g/11g?（）AOnly one LONG column can be used per tableBA TIMESTAMP data type column stores only time values with fractional secondsCThe BLOB data type column is used to store binary data in an operating system fileDThe minimum column width that can be specified for a VARCHAR2 data type column is oneEThe value for a CHAR data type column is blank-padded to the maximum defined column width
考题
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?（）A
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Write changes to disk
考题
单选题Examine the following RMAN script： RMAN run { debug on； allocate channel c1 type disk； backup datafile 5； } Which statement describes the purpose of the script？（）A
The data file is checked for physical corruption and backed up if found clean.B
The backup of data file 5 is performed and the interactive messages during the backup are suppressed.C
The existing backup for the data file is checked and the backup is performed if there are changes in the data file after the last backup.D
The backup of data file 5 is performed and all SQL statements that are executed during RMAN compilation and their results are displayed
考题
多选题Which three are true?（）AA MERGE statement is used to merge the data of one table with data from another.BA MERGE statement replaces the data of one table with that of another.CA MERGE statement can be used to insert new rows into a table.DA MERGE statement can be used to update existing rows in a table.
考题
单选题Which of the following best describes the age of the data in an OLTP system?（）A
CurrentB
ProjectedC
HistoricalD
Current and projected
考题
单选题You issued the following commands to configure setting in RMAN; RMAN CONFIGURE DEVICE TYPE sbt PARALLELISM 1; RMAN CONFIGURE DEFAULT DEVICE TYPE TO sbt; RMAN CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE sbt TO 2; RMAN CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE sbt TO 2; RMAN CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2; Then you issued the following command to take the backup: RMAN BACKUP DATABASE PLUS ARCHIVELOG; Which statement is true about the execution of the above command?（）A
The backup will terminate because the FORMAT clause was not configured for the channelB
It backs up two copies of data files to tape and disk, and two copies of archived log file on tapeC
It backs up the data files and archived log files to disk, making two copies of each data file and archived log fileD
It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
考题
单选题Which statement best describes OSPF external LSAs （type 5）？（）A
OSPF external LSAs are automatically flooded into all OSPF areas, unlike type 7 LSAs, which require that redistribution be configured.B
External LSAs (type 5) are automatically changed to type 1 LSAs at ASBRs.C
Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.D
External network LSAs (type 5) redistributed from other routing protocols into OSPF are not permitted to flood into a stub area
考题
单选题A SELECT statement can be used to perform these three functions: 1.Choose rows from a table. 2.Choose columns from a table. 3.Bring together data that is stored in different tables by creating a link between them. Which set of keywords describes these capabilities?（）A
difference, projection, joinB
selection, projection, joinC
selection, intersection, joinD
intersection, projection, joinE
difference, projection, product
考题
单选题WebSphere Commerce categorizes store data into several categories. Prices， Contracts， and Campaigns are all examples of which type of data？（）A
operationalB
managedC
configurationD
coreE
instance
考题
单选题Which statement is true regarding the COALESCE function?（）A
It can have a maximum of five expressions in a list B
It returns the highest NOT NULL value in the list for all rows C
It requires that all expressions in the list must be of the same data type D
It requires that at least one of the expressions in the list must have a NOT NULL value
考题
单选题When computers are connected on a network in a manner where the data flows to a central pointand then back out describes which of the following networks?（）A
RingB
MeshC
StarD
Hybrid
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