软件系统Operating System，简称OS。（）
软件系统Operating System，简称OS。（）
相关考题：
Which two statements about Oracle Direct Network File System (NFS) are true?() A. It bypasses the OS file system cache.B. A separate NFS interface is required for use across Linux, UNIX, and Windows platforms.C. It uses the operating system kernel NFS layer for user tasks and network communication modules.D. File systems need not be mounted by the kernel NFS system when being served through Direct NFS.E. Oracle Disk Manager can manage NFS on its own, without using the operating system kernel NFS driver.
Which operating system do Juniper Networks MX Series routers use?() A. IOSB. MX-OSC. UNIXD. Junos OS
The kernel is the(66)of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system,(67)it possible for it to run several programs at once(multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.In operating systems such as Windows or most versions of Unix, the kernel(68)everything except application and utility programs.In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel(69)supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all(70)outside the microkernel.A．nucleusB．centerC．coreD．heart
A real-time operating system.（RTOS）is an operating system intended to serve（ ）application process data as it comes in,typically without buffering delays.A key（请作答此空）of a RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application’s task;the variability is jitter.A hard real-time operating system has（ ）jitter than a soft real-time operating system.The chief design goal is not high throughput,but rather a guarantee of a soft or hard performance category.A RTOS has an advanced algorithm for scheduling.（ ）flexibility enables a wider,computer-system orchestration of process priorities,but a real-time OS is more frequently dedicated to a narrow set of applications.Key factors in a real-time OS are minimal（ ）latency and minimal thread switching latency.A.characteristicB.programmingC.structureD.computer
“Those users boot up the new OS，they will recognize nothing”(in Para.2) is closest in meaning to ( ) A.those who use Windows are generally not good at using computers B.Apple’s OS is so different from Windows C.Windows is so good that other operating systems can hardly survive D.Windows has been enjoying a monopolistic position in operating system market
The database instance has the following parameter setting： OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD. You create a database user OPS$SKD， and then assignexternal authentication. The user OPS$SKD has the CREATE SESSION privilege. What would youachieve by the above process（）A、The database user OPS$SKD will be able to administer the database.B、The authentication detail for the database user OPS$SKD is recorded in the password file.C、The local operating system user SKD will be able to access the database instance without specifying the username and password.D、The database user OPS$SKD has to login with the password of the local operating system user SKD to access the database instance.
Which statement is true regarding the Junos OS?（）A、The Junos kernel is based on the Solaris operating sytemB、The Junos kernel is based on the GNU Zebra operating systemC、The Junos kernel is completely original and not based on any other operating systemD、The Junos kernel is based on the FreeBSD UNIX operating system
Which statement is true regarding the Junos OS?（）A、The Junos kernel is based on the Solaris operating system.B、The Junos kernel is based on the GNU Zebra operating system.C、The Junos kernel is completely original and not based on any other operating system.D、The Junos kernel is based on the FreeBSD UNIX operating system.
You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA. While observing the server settings， you find that the following parameter has been set in the parameter file of the database： REMOTE_OS_AUTHENT = TRUE What could have been the reason to set this parameter as TRUE？（）A、to enable operating system authentication for a remote clientB、to restrict the scope of administration to identical operating systemsC、to allow the start up and shut down of the database from a remote clientD、to enable the administration of the operating system from a remote clientE、to disable the administration of the operating system from a remote client
You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）A、The backup status will be marked expired in RMAN recovery catalog.B、The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.C、The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery cataloglD、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.E、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.
单选题You have been recently hired as a database administrator. Your senior manager asks you to study the production database server and submit a report on the settings done by the previous DBA. While observing the server settings， you find that the following parameter has been set in the parameter file of the database： REMOTE_OS_AUTHENT = TRUE What could have been the reason to set this parameter as TRUE？（）Ato enable operating system authentication for a remote clientBto restrict the scope of administration to identical operating systemsCto allow the start up and shut down of the database from a remote clientDto enable the administration of the operating system from a remote clientEto disable the administration of the operating system from a remote client
单选题You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）AThe backup status will be marked expired in RMAN recovery catalog.BThe backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.CThe backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery cataloglDThe backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.EThe backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.
单选题Before installing an operating system on a server， which of the following is the BEST resource for an administrator to review the compatibility of the OS with the video card？（）AServer manualBManufacturer websiteCIEEE standardsDHCL
多选题Which two statements about Oracle Direct Network File System (NFS) are true?（）AIt bypasses the OS file system cache.BA separate NFS interface is required for use across Linux, UNIX, and Windows platforms.CIt uses the operating system kernel NFS layer for user tasks and network communication modules.DFile systems need not be mounted by the kernel NFS system when being served through Direct NFS.EOracle Disk Manager can manage NFS on its own, without using the operating system kernel NFS driver.
单选题Which statement is true regarding the Junos OS?（）AThe Junos kernel is based on the Solaris operating system.BThe Junos kernel is based on the GNU Zebra operating system.CThe Junos kernel is completely original and not based on any other operating system.DThe Junos kernel is based on the FreeBSD UNIX operating system.
单选题Which statement is true regarding the Junos OS?（）AThe Junos kernel is based on the Solaris operating systemBThe Junos kernel is based on the GNU Zebra operating systemCThe Junos kernel is completely original and not based on any other operating systemDThe Junos kernel is based on the FreeBSD UNIX operating system
单选题What is the operating system do Juniper Networks MX Series routers use?（）AIOSBMX-OSCUNIXDJunos OS
单选题The database instance has the following parameter setting： OS_AUTHENT_PREFIX = OPS$ OS_ROLES = FALSE REMOTE_OS_AUTHENT = FALSE REMOTE_OS_ROLES = FALSE TIMED_OS_STATISTICS = 0 You have a local operating system user SKD. You create a database user OPS$SKD， and then assignexternal authentication. The user OPS$SKD has the CREATE SESSION privilege. What would youachieve by the above process（）AThe database user OPS$SKD will be able to administer the database.BThe authentication detail for the database user OPS$SKD is recorded in the password file.CThe local operating system user SKD will be able to access the database instance without specifying the username and password.DThe database user OPS$SKD has to login with the password of the local operating system user SKD to access the database instance.
判断题OS的全称是Operating System。（）A对B错