●In computer science ,a data (72) is a way of storing data in acomputer so that it can be used efficiently.(72)A.recordB.fileC.structureD.pool
●In computer science ,a data (72) is a way of storing data in acomputer so that it can be used efficiently.
(72)A.record
B.file
C.structure
D.pool
相关考题：
Not only () the data fed into it, but it can also analyze them. A.the computer can memorizeB.can the computer memorizeC.do the computer memorizeD.can memorize the computer
Because Web servers are platform. and application(71)，they can send or request data from legacy or external application including database．All replies，once converted into(72)mark up language，can then be transmitted to a(73)．Used in this way，Intranets can(74)lower desktop support costs，easy links with legacy application and databases and，(75)all。ease of use．(74)A．coupledB．dependentC．independentD．related
● The maximum number of data that can be expressed by 8 bits is （72） .（72）A. 64 B. 128 C. 255 D. 256
●( 72) is a file that contains metadata-that is, data about data.●(72) A. documentB. Excel tableC. databaseD. data dictionary
In data communication, data link is those parts of two data terminal equipments that are controlled by a protocol along with the(71) data circuit, which together enable data(72). So-called protocol means, in short, a set of rules that determines the behavior. of functional units in achieving communication.Data circuit, however, consists of a pair of(73) transmission channels that provides a means of two-way data transmission. Between data switching exchanges, the data circuit may or may not include data circuit-terminating equipment (DCE), depending on the type of(74) used at the data switching exchange. Between a data station and a data switching exchange or data concentrator, the data circuit includes the DCE at the data station end, and may include equipment(75) to a DCE at the data switching exchange or dam concentrator location.A．handshakingB．interconnectingC．linkageD．joining
Output is data that has been processed into useful form. called(72). That is a computer processes input into output.A．dataB．informationC．interfaceD．system
You install a custom application on a computer that runs Microsoft Windows XP. The application stores each user’s data in the %programfiles%\app1\data folder on the computer. You install the custom application on a computer that runs Windows Vista.On the Windows Vista computer, you back up the %programfiles%\app1\data folder and notice that the backup contains no data.You need to back up the application’s user data on the Windows Vista computer.What should you do?（）A.AB.BC.CD.D
Because Web servers are platform. and application(71)they can send or request data from legacy or external applications including databases. All replies, once converted into(72)mark-up language, can then be transmitted to a(73). Used in this way, Intranets can(74)lower desktop support costs, easy links with legacy applications and databases and,(75)all, ease of use.A．relatedB．dependentC．coupledD．independent
●A (72) is a file that contains metadata—that is，data about data.(72)A．documentB．Excel tableC. databaseD．data dictionary
An application architecture specifies the technologies to be used to implement one or more information systems. It serves as an outline for detailed design, construction, and implementation. Given the models and details, include （ ）, we can distribute data and processes to create a general design of application architecture. The design will normally be constrained by architecture standards, project objectives, and （ ）. The first physical DFD to be drawn is the （ ）. The next step is to distribute data stores to different processors. Data（ ）are two types of distributed data which most RDBMSs support. There are many distribution options used in data distribution. In the case of（请作答此空）, we should record each table as a data store on the physical DFD and connect each to the appropriate server.A.storing all data on a single serverB.storing specific tables on different serversC.storing subsets of specific tables on different serversD.duplicating specific tables or subsets on different servers
Which two statements correctly describe the relation between a data file and the logical databasestructures（）A、An extent cannot spread across data files.B、A segment cannot spread across data files.C、A data file can belong to only one tablespace.D、A data file can have only one segment created in it.E、A data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
（）is not a physical wall but a flow virtual data to protect the computer network.A、data wallB、data channelC、databaseD、firewall
（）is not a physical wall, but a lot of virtual data to protect the computer network. A、Data wallB、Data ChannelC、Data baseD、firewall
Why is QoS important in a converged network?（）A、Because data does not need to arrive intact, so data transfer rates can be variableB、Because lost voice-data packets must be retransmittedC、Because voice data packets should arrive quickly and sequentially, and with no lost dataD、Because voice data packets must follow a single dedicated path through the network
Which of the following is a distinguishing factor between data archiving and data backups？（）A、Data archives are kept for disaster recovery purposes while data backups are kept for indefiniteperiods of time so that there is an information record.B、Data archives are kept for documentation purposes to easily recover data while data backupsare kept for immediate server recovery.C、Data archives are kept off-site for data warehousing purposes while data backups are keptlocally for immediate server recovery purposes.D、Data archives are kept for indefinite periods of time so there is a record while data backups arekept for disaster recovery purposes.
多选题In a design situation, there are multiple character sets that can properly encode your data. Which three should influence your choice of character set?（）ASyntax when writing queries involving JOINSBMemory usage when working with the dataCCharacter set mapping index hash sizeDDisk usage when storing data
多选题Which two statements correctly describe the relation between a data file and the logical databasestructures（）AAn extent cannot spread across data files.BA segment cannot spread across data files.CA data file can belong to only one tablespace.DA data file can have only one segment created in it.EA data block can spread across multiple data files as it can consist of multiple operating system （OS） blocks.
单选题You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task？（）AUpgrade the hardware/memory to accommodate the data.BLoad the data into your database by using the PARALLEL clause.CGive analysts DBA privilege， so that they can query DBA_EXTERNAL_TABLES.DUse an external table so you can have the metadata available in your database， but leave the data in the operating system files.
单选题You want to put a specific tablespace called MY_DATA in hot backup mode so you can back it up. What command would you use？（）A alter tablespace MY_DATA begin backupB alter tablespace MY_DATA start backupC alter tablespace MY_DATA backup beginD alter MY_DATA begin backupE You cannot back up individual tablespaces