Which set of commands is recommended to prevent the use of a hub in the access layer?（）

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  A . show port network B .

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• Which of the following commands should be used to set network attributes on a currently running kernel？（）

  A .  no B .  chdev C .  vmtune D .  schedtune

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• Which two statements or sets of statements are true about the application of the qos pre-classify command？（）

  A .  If the classification policy is based upon the ToS byte， the qos pre-classify command is required because the ToS byte only appears in the inner IP header. B .  The ToS byte is copied to the outer header by default. Therefore， the qos pre-classify command is not necessary. C .  With GRE encapsulation， the qos pre-classify command is applied on the tunnel interface. This practice allows for different OoS configurations on each tunnel. D .  With GRE encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface. E .  With IPsec encapsulation， the qos pre-classify command is applied on the physical interface. This practice allows for different OoS configurations on each interface.

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• You decided to change the location of the flash recovery area. You executed the following command：   ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’；   Which statement is true？（）

  A .  The location can be changed only if the flash recovery area is empty. B .  After executing the command， all new flash recovery area files will be created in the new location. C .  The command will generate an error because you cannot change the flash recovery area while the database is open. D .  All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location.

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• If IP routing is enabled, which two commands set the gateway of last resort to the default gateway?（）

  A . ip default-gateway 0.0.0.0 B . ip route 172.16.2.1 0.0.0.0 0.0.0.0 C . ip default-network 0.0.0.0 D . ip default-route 0.0.0.0 0.0.0.0 172.16.2.1 E . ip route 0.0.0.0 0.0.0.0 172.16.2.1

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• Evaluate the following command: SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'; What is the impact of this setting on the usage of SecureFiles?（）

  A . It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB B . It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB C . It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB D . It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile

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• Examine the command：  SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）； Which statement describes the effect of the above command（）

  A . Automatic statistics collection is stopped for the CUSTOMERS table. B . Statistics for the CUSTOMERS table are locked and cannot be overwritten. C . Existing statistics for the CUSTOMERS table become unusable for the query optimizer. D . Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistics.

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• Which of the following commands will set the duplex of a network adapter？（）

  A . no -a media_speed=100_Full_Duplex en0 B . ifconfig -a media_speed=100_Full_Duplex ent0 C . chdev -l ent0 -a media_speed=100_Full_Duplex D . chinet -l en0 -a media_speed=100_Full_Duplex en0

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• Evaluate the following command：   SQL>ALTER SYSTEM SET db_securefile = ’IGNORE’；   What is the impact of this setting on the usage of SecureFiles？（）

  A .  It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB B .  It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB C .  It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB D .  It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile

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• Examine the following command; ALTER SYSTEM SET enable_ddl_logging = TRUE; Which statement is true?（）

  A . Only the data definition language (DDL) commands that resulted in errors are logged in the alert log file. B . All DDL commands are logged in the alert log file. C . All DDL commands are logged in a different log file that contains DDL statements and their execution dates. D . Only DDL commands that resulted in the creation of new segments are logged. E . All DDL commands are logged in XML format in the alert directory under the Automatic Diagnostic Repository (ADR) home.

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• What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED； command？（）

  A . The standby database is protected against write operations.  B . The primary database is protected against write operations.  C . The primary database is protected against data loss and data divergence.  D . The standby database is protected against data loss and data divergence.&e

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• In which of these phases is a set of acceptance tests developed and documented？（）

  A . implement B . design C . prepare D . operate

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• Which of the following commands should be used to alter the routing table on a running system without affecting the ODM settings？（）

  A . inetd B . route C . cfgmgr D . chdev

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• Which of the following commands should be used to check the settings for a new tty that was just set up as tty2？（）

  A . lsattr -El tty2 B . lscons -d /dev/tty2 C . lscfg -vl tty2 D . what /dev/tty2

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• You issue these LSNRCTL commands：  LSNRCTL> SET CURRENT_LISTENER listener01 LSNRCTL> START listener02  What is the result of issuing these commands？（）

  A . A listener named LISTENER is started. B . A listener named LISTENER01 is started. C . A listener named LISTENER02 is started. D . The START command fails and no listener is started.

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• When policy - based routing (PBR) is being configured, which three criteria can the set command specify?（）

  A . all interfaces in the path toward the destination B . all networks in the path toward the destination C . adjacent next hop router in the path toward the destination D . all routers in the path toward the destination E . all interfaces through which the packets can be routed F . type of service and precedence in the IP packet

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• You need to set the default gateway of one of your TestKing switches. Which command will set the default gateway to 192.168.12.1 on a Cisco switch?（）

  A . Switch(config)# ip default-network 192.168.12.1 B . Switch(config)#ip route-default 192.168.12.1 C . Switch(config)# ip default-gateway 192.168.12.1 D . Swicth(config)# ip route 192.168.12.1 0.0.0.0

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• Examine the following set of RMAN commands: https://assets.asklib.com/images/image2/2018080210170026958.jpg Which statement is true when the RMAN RUN block Is executed?（）

  A . The execution of the script fails because multiple channels cannot coexist. B . The script is executed and both the channels are used for the script execution. C . The new channel, CHI, is Ignored because a channel has been configured already. D . ration parameter DC1 is overridden because a new channel is allocated in RMAN RUN block.

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• Examine this command: SQL > exec DBMS_STATS.SET_TABLE_PREFS (‘SH’, ‘CUSTOMERS’, ‘PUBLISH’, ‘false’); Which three statements are true about the effect of this command?（）

  A . Statistics collection is not done for the CUSTOMERS table when schema stats are gathered. B . Statistics collection is not done for the CUSTOMERS table when database stats are gathered. C . Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time. D . Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics. E . Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.

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• Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?（）

  A . None of the data definition language (DDL) statements are logged in the trace file. B . Only DDL commands that resulted in errors are logged in the alert log file. C . A new log.xml file that contains the DDL statements is created, and the DDL command details are removed from the alert log file. D . Only DDL commands that resulted in the creation of new database files are logged.

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• When creating a class that associates a set of keys with a set of values， which of these interfaces is most applicable？（） 

  A . Collection B . Set C . SortedSet D . Ma

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• An administrator is beginning a set of failover tests. The administrator would like to have clean log files foreach test. Which command will achieve this？（）

  A . clcycle B . clrefresh C . cllogcycle D . cllogrotate

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• Examine the command： SQL> DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’， ’false’）；  Which statementdescribes the effect of the above command（）

  A . Automatic statistics collection is stopped for the CUSTOMERS table. B . Statistics for the CUSTOMERS table are locked and cannot be overwritten. C . Existing statistics for the CUSTOMERS table become unusable for the query optimizer. D . Subsequently， statistics gathered on the CUSTOMERS table are stored as pending statistic

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• Suppose V1=，V2=，where R is the set of real numbers，+， and？ are respectively addition and multiplication.Let f﹕R→R and f（x) = ex， which of the following propositions is true？（）

  A、f is a surjective homomorphism from V1 to V2 B、f is an injective homomorphism from V1 to V2 C、f is an isomorphism from V1 to V2 D、None of the above

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