The basic function of the file system is accessing files by names. The function can be realized by(24).A．directory-managingB．boosting the speed of the file-accessingC．file-protectingD．improving the utilization of storage
The basic function of the file system is accessing files by names. The function can be realized by(24).
A．directory-managing
B．boosting the speed of the file-accessing
C．file-protecting
D．improving the utilization of storage
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● Configuration management system can be used in defining approval levels for authorizing changes and providing a method to validate approved changes．(74) is not a project configuration management tool．（74）A．Rational ClearcaseB．Quality Function DeploymentC．Visual SourceSafeD．Concurrent Versions System
YoucreateaWebpagethatcontainsthefollowingcode.Youneedtoprovidethefollowingimplementation.EachtimetheAddFilebuttonisclicked，anewdivelementiscreated.ThenewdivelementisappendedaftertheotherfileuploaddivelementsandbeforetheAddFilespan.Eachnewelementhasauniqueidentifier.Whichcodesegmentshouldyouuse？（）A.$（#AddFile）.click（function（）{varid=File+++lastId；varitem=$（.File：first）.clone（true）；$（input：file，item）.attr（{id：id，name：id}）；item.insertBefore（#AddFile）；}）；B.$（#AddFile）.click（function（）{varid=File+++lastId；$（.File：first）.clone（true）.attr（{id：id，name：id}）.insertBefore（#AddFile）；}）；C.$（#AddFile）.click（function（）{varid=File+++lastId；}）；D.$（#AddFile）.click（function（）{varid=File+++lastId；varitem=$（.File：first）.clone（true）；$（input：file，item）.attr（{id：id，name：id}）；item.insertAfter（input[type=file]）；}）；
Which of the following statements describe the use of the keywordstatic?a) Within the body of a function: A static variable maintains its valuebetween function revocationsb) Within a module: A static variable is accessible by all functionswithin that modulec) Within a module: A static function can only be called by otherfunctions within that module
The objective of （ ）is to determine what parts of the application software will be assigned to what hardware.The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is（ ）. Most information systems require data to be stored and retrieved,whether a small file,such as a memo produced by a word processor,or a large database,such as one that stores an organizations accounting records. The second function is the （ ）,the processing required to access data,which often means database queries in Structured Query Language. The third function is the （ ）,which is the logic documented in the DFDs,use cases,and functional requirements.The fourth function is the presentation logic,the display of information to the user and the acceptance of the users commands.The three primary hardware components of a system are （ ）.A.architecture design B.modular design C.physical design D.distribution design A.data access components B.database management system C.data storage D.data entities A.data persistence B.data access objects C.database connection D.dataaccess logic A.system requirements B.system architecture C.application logic D.application program A.computers,cables and network B.clients,servers,and network C.CPUs,memories and I/O devices D.CPUs,hard disks and I/O devices
In the fields of physical security and information security,access control is the selective restriction of access to a place or other resource.The act of accessing may mean consuming,entering,or using.Permission to access a resource is called authorization（授权）．An access control mechanism（71）between a user(or a process executing on behalf of a user)and system resources,such as applications,operating systems,firewalls,routers,files,and databases.The system must first authenticate（验证）a user seeking access.Typically the authentication function determines whether the user is（72）to access the system at all.Then the access control function determines if the specific requested access by this user is permitted.A security administrator maintains an authorization database that specifies what type of access to which resources is allowed for this user.The access control function consults this database to determine whether to（73）access.An auditing function monitors and keeps a record of user accesses to system resources.In practice,a number of（74）may cooperatively share the access control function.All operating systems have at least a rudimentary（基本的）,and in many cases a quite robust,access control component.Add-on security packages can add to the（75）access control capabilities of the OS.Particular applications or utilities,such as a database management system,also incorporate access control functions.External devices,such as firewalls,can also provide access control services.A.cooperatesB.coordinatesC.connectsD.mediates
The basic unit of software that the operating system deals with in scheduling the work done by the processor is （ ）．A.a program or subroutine B.a modular or a function C.a process or a thread D.a device or a chip
Configuration management system can be used in defining approval levels for authorizing changes and providing a method to validate approved changes． （ ） is not a project configuration management tool．A.Rational ClearcaseB.Quality Function DeploymentC.Visual SourceSafeD.Concurrent Versions System
The objective of (请作答此空) is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is (72). Most information systems require data to be stored and retrieved, whether a small file, such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records. The second function is the (73), the processing required to access data, which often means database queries in Structured Query Language. The third function is the (74), which is the logic documented in the DFDs, use cases, and functional requirements. The fourth function is the presentation logic, the display of information to the user and the acceptance of the user's commands. The three primary hardware components of a system are (75). A.architecture design B. modular designC. physical design D.distribution design
The objective of (71) is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is (72). Most information systems require data to be stored and retrieved, whether a small file, such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records. The second function is the (73), the processing required to access data, which often means database queries in Structured Query Language. The third function is the (74), which is the logic documented in the DFDs, use cases, and functional requirements. The fourth function is the presentation logic, the display of information to the user and the acceptance of the user's commands. The three primary hardware components of a system are (请作答此空). A. computers, cables and networkB.clients, servers, and networkC. CPUs, memories and I/O devicesD.CPUs, hard disks and I/O devices
The objective of (71) is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is (72). Most information systems require data to be stored and retrieved, whether a small file, such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records. The second function is the (73), the processing required to access data, which often means database queries in Structured Query Language. The third function is the (请作答此空), which is the logic documented in the DFDs, use cases, and functional requirements. The fourth function is the presentation logic, the display of information to the user and the acceptance of the user's commands. The three primary hardware components of a system are (75). A. system requirements B. system architectureC.application logic D.application program
The objective of（ 请作答此空 ）is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is（）.Most information systems require data to be stored and retrieved, whether a small file,such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records.The second function is the（）,the processing required to access data, which often means database queries in Structured Query Language. The third function is the （）,which is the logic documented in the DFDs, use cases,and functional requirements.The fourth function is the presentation logic,the display of information to the user and the acceptance of the user's commands.The three primary hardware components of a system are （）. A.architecture designB. modular designC. physical designD.distribution design
The objective of（）is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is（）.Most information systems require data to be stored and retrieved, whether a small file,such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records.The second function is the（）,the processing required to access data, which often means database queries in Structured Query Language. The third function is the（请作答此空 ）,which is the logic documented in the DFDs, use cases,and functional requirements.The fourth function is the presentation logic,the display of information to the user and the acceptance of the user's commands.The three primary hardware components of a system are （）. A. system requirementsB. system architectureC.application logicD.application program
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.
Which two statements are true about Oracle Weblogic Clustering ？ （）A、 WLS instances must be in a Cluster for In-Memory HTTP Session Replication to function B、 WLS supports only hardware load balancing to ensure HA access for HTTP/Web clientsC、 The servers must be running on the same port numberD、 Make sure your Admin Server configuration and related files reside on a HA file system or some other backup/recovery strategy is in place
A system administrator is unable to unmount a file system. Which is the appropriate command to determine who or what is accessing the file system？（）A、who /filesystemB、lsfs /filesystemC、fuser /filesystemD、umount -f /filesystem
A developer wants too use EL to invoke a function using S{my：bloof（“foof”）}. Which is always true？（）A、 The method invoked by this function must be statie.B、 The function class must implement the Function interface.C、 The expression is NOT a valid EL expression for invoking a function.D、 The function must be declared in a web.xml file using the element.E、 The function class must have a method with the signature：Void bloof （java.lang.Strings）
Which statement is true about the loss of system/x7fcritical data files in ARCHIVELOG mode？（）A、The data files can be recovered till the last committed transaction.B、The data files can be recovered without shutting down the database.C、The data file is taken offline automatically; the database remains open.D、The data files can be recovered to the time of the most recent backup.
Which two statements about Automatic Storage Management （ASM） are true？（）A、ASM provides mirroring on file by file basis.B、ASM provides automatic load balancing across all ASM disks.C、ASM supports the Oracle database and operating system files.D、ASM can be used to store trace files， alert log files， and the server parameter file （SPFILE）.
Which statement is true about the loss of system-critical data files in ARCHIVELOG mode？（）A、The data files can be recovered till the last committed transaction.B、The data files can be recovered without shutting down the database.C、The data file is taken offline automatically； the database remains open.D、The data files can be recovered to the time of the most recent backup.
如果你想要自动加载类，下面哪种函数声明是正确的？（）A、function autoload（$class_name）B、function__autoload（$class_name，$file）C、function__autoload（$class_name）D、function_autoload（$class_name）E、function autoload（$class_name，$file）
单选题A developer wants too use EL to invoke a function using S{my：bloof（“foof”）}. Which is always true？（）A The method invoked by this function must be statie.B The function class must implement the Function interface.C The expression is NOT a valid EL expression for invoking a function.D The function must be declared in a web.xml file using the element.E The function class must have a method with the signature：Void bloof （java.lang.Strings）
单选题One function provided by a hydraulic accumulator is to（）Aprovide an area where air can separate from the oilBprovide an area to separate solid contaminants from the oilCact as an oil and water separatorDabsorb shocks occurring in the system
单选题Which statement is true about the loss of system-critical data files in ARCHIVELOG mode？（）AThe data files can be recovered till the last committed transaction.BThe data files can be recovered without shutting down the database.CThe data file is taken offline automatically； the database remains open.DThe data files can be recovered to the time of the most recent backup.
单选题Which statement is true about the loss of system/x7fcritical data files in ARCHIVELOG mode？（）AThe data files can be recovered till the last committed transaction.BThe data files can be recovered without shutting down the database.CThe data file is taken offline automatically; the database remains open.DThe data files can be recovered to the time of the most recent backup.
单选题If the low level alarm of the diesel fuel day tank fails to function, you can expect trouble from（）Aoverheated injection pumpsBwater condensed in the cylindersCfuel dilution of the lube oilDair in the fuel system
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.