Which DHCP allocation method allows automatic reuse of an address that is no longer needed by the client to which it was assigned？（）

A . debug dhcp enable B . debug dhcp status enable C . debug dhcp packet enable D . enable debug dhcp packet

A . 0 B . 10 C . 100 D . NULL

A .  IT staff in Atlanta B .  IT staff in Seattle C .  DHCP administrators in all offices D .  DHCP administrators in Atlanta only E .  Members of the Enterprise Admins grou

A . run a procedure to check the tablespace space usage B . define the warning threshold for the tablespace at 75% in Database Control C . create a trigger to be executed when tablespace space usage reaches 75% D . submit a job by using DBMS_JOB package to check the free space in the tablespace at regular intervals E . define the warning threshold to be 75% for the tablespace by ALTER TABLESPACE .. ADD THRESHOLD command

A . IT staff in Atlanta B . IT staff in Seattle C . DHCP administrators in all offices D . DHCP administrators in Atlanta only E . Members of the Enterprise Admins grou

A . Even with resumable space allocation enabled for your database, you can disable resumable space allocation for a single session. B . A resumable statement is suspended only if an out of space error occurs. C . When a resumable statement is suspended, the transaction that contains the statement is also suspended. D . A resumable statement can only be suspended and resumed once during the execution of the statement. E . You can query the V$SESSION_WAIT dynamic performance view to identify the statements that are suspended for a sessio

A . CoD and PCI hot-plug B . DLPAR and Active Memory Sharing C . Hot node add and hot node repair D . D.ynamic processor failure and processor instruction retry

A . A DHCP client uses a ping to detect address conflicts.(ARP) B . A DHCP server uses a gratuitous ARP to detect DHCP clients. C . A DHCP client uses a gratuitous ARP to detect a DHCP server. D . If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict. E . If an address conflict is detected, the address removed from the pool for an amount of time configurable by the administrator. F . If an address conflict is detected, the address is removed from the pool and will not be reused until server is rebooted.

A .  RATIO B .  EMPHASIS C .  ACTIVE_SESS_POOL_MTH D .  RESOURCE_DEGREE_LIMIT_ABSOLUTE

A . issuing the ALTER SYSTEM ENABLE RESUMABLE; statement B . issuing the ALTER SESSION ENABLE RESUMABLE; statement C . modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value D . issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=<nonzero value>; statement

A . Even with resumable space allocation enabled for your database, you can disable resumable space allocation for a single session. B . A resumable statement is suspended only if an out of space error occurs. （Out of space condition Maximum extents reached condition，Space quota exceeded condition） C . When a resumable statement is suspended, the transaction that contains the statement is also suspended. D . A resumable statement can only be suspended and resumed once during the execution of the statement. E . You can query the V$SESSION_WAIT dynamic performance view to identify the statements that are suspended for a session.

A . Global buffers such as the InnoDB buffer pool are allocated after the server starts, and are never freed B . Thread buffers are allocated when a client connects, and are freed when the client disconnects C . Buffers that are needed for certain operation are allocated when the operation starts, and freed when it ends D . User buffers are allocated at server startup and freed when the user is dropped E . All dynamic buffers that are set with a SET GLOBAL statement immediately get allocated globally, and are never freed

A . ALTER USER  B . ALTER DATABASE  C . ALTER SYSTEM  D . GRANT

A . The value for MINEXTENTS setting  B . The value for PCTINCREASE setting  C . The value for MAXEXTENTS setting  D . By default, Oracle allocates six extents to all database object

A . PMON B . SMON C . CKPT D . LGWR E . ARC

A . first-in， first-out queuing （FIFO） B . priority queuing （PQ） C . custom queuing （CQ） D . weighted fair queuing （WFQ） E . class-based WFQ （CBWFQ） F . low latency queuing （LLQ）

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

A . DBA_TABLESPACES  B . DBA_TABLES  C . DBA_SEGMENTS  D . DBA_FREE_SPACE

A . The IP address can be automatically assigned to a host. B . The IP address can be assigned as a random hash value of the burned - in - address of the lowest - numbered LAN interface on the router. C . The network administrator can assign a speci fic IP address to a specific host MAC address. D . The IP address can be assigned from configured pools in a reverse lexicographical order. E . The IP address can be assigned to a host for a limited time or until the host explicitly releases the address. F . The IP address can be assigned to a host until the host usurps the assigned value using its own dynamic override mechanism.

A . issuing the ALTER SYSTEM ENABLE RESUMABLE; statement B . issuing the ALTER SESSION ENABLE RESUMABLE; statement C . modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value D . issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=

A . cat /proc/usr/lparchk  B . cat /proc/ppc64/lparcfg  C . /var/adm/tools/res_list  D . /var/adm/tools/lparalloc

A .  issuing the ALTER SYSTEM ENABLE RESUMABLE；statement B .  issuing the ALTER SESSION ENABLE RESUMABLE；statement C .  modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value D .  issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=

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

A .  validates DHCP messages received from untrusted sources and filters out invalid response messages from DHCP servers B .  intercepts all ARP requests and responses on untrusted ports C .  builds and maintains the DHCP snooping binding database， which contains information about untrusted hosts with leased IP addresses D .  uses the DHCP snooping binding database to validate subsequent requests from untrusted hosts E .  limits IP traffic on an interface to only those sources that have an IP-MAC address binding table entry or static IP source entry