单选题If you find an extremely large refrigerant leak while using a halide torch, your flame will（）A change from blue to orangeB ‘flare up’ and remain lightedC probably go outD stay blue

考题 Please find the exact definition for "accessory".A. something such as a bag,or jewellery that you wear or carry because it is attractiveB. something that someone has made in a skillful way using their handsC. something good to eat that is expensive or rareD. a large area where there are a lot of shops,usually

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考题 Which IGP should you use to achieve scalability in a large enterprise network using Juniperenterprise routers?() A.RIPB.BGPC.OSPFD.EIGRP

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考题 In a chilled(冷的) water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primary refrigerant can be increased by ______.A.increasing refrigerant pressure in the coilB.increasing chilled water flow through the coolerC.sub-cooling the refrigerant in the condenserD.superheating the refrigerant in the compressor

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考题共用题干第二篇Call American Their NamesA great difference between American social customs and those of other countries is the way in which names are used.Americans have little concern for"rank",especially socially. Most Americans do not want to be treated in any especially respectful way because of their age or social rank;it makes them feel uncomfortable.Many Americans even find the terms"Mr.","Mrs."or"Miss" too formal.People of all ages may prefer to be called by their first names."Don't call me Mrs. Smith.Just call me Sally."Using only first names usually indicates friendliness and acceptance. However,if you do not feel comfortable using only first names,it is quite acceptable to be more formal.Just smile and say that after a while you will use first names but you are accustomed to being more when you first meet someone.Very often,introductions are made using both first and last names:"Mary Smith,this is John Jones."In this situation you are free to decide whether to call the lady"Mary"or"Miss Smith". Sometimes both of you will begin a conversation using last names,and after a while one or both of you may begin using first names instead.You have a choice:if you don't want to use first names so quickly, no one will think it impolite if you continue according to your own custom.The passage you've just read would most likely be found in a______.A:guide-book for touristsB:book about American historyC:noticeD:short story

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考题 You are using an Automatic Storage Management （ASM） instance to manage the files of your production database. While studying the parameter file of the ASM instance， you find the following entry： ASM_DISKSTRING = /devices/* What could be the reason for this setting？（）A、to enable the ASM instance to identify the alert log fileB、to enable the ASM instance to identify the server parameter fileC、to enable the ASM instance to define the locations for Oracle Managed Files （OMF）D、to enable the ASM instance to identify all disks that can be accessed by it in the /devices directory

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考题 You used the following command in Recovery Manager （RMAN） as part of the recovery process： RESTORE CONTROLFILE FROM AUTOBACKUP; How does RMAN find the control file autobackup？（）A、by using the trace fileB、by using the alert log fileC、by using the database IDD、by using the server parameter fileE、by using the V$CONTROLFILE viewF、by using the autobackup format configuration setting

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考题 You are maintaining your database in Oracle10g. You find that the INDEXES index tablespace should be recovered. How will you recover the index tablespace？（）A、 by using the Flashback Database featureB、 by using RMAN incomplete recoveryC、 by performing a user-managed incomplete recoveryD、 by dropping and re-creating the index tablespace

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考题 Your database is functioning in ARCHIVELOG mode. In which two situations would you perform a cancel-based recovery？（）A、 You find that one of the redo log members in each redo log group is lost.B、 You find that a data file that belongs to the USERS tablespace is damaged.C、 You find that a data file that belongs to the SYSTEM tablespace is damaged.D、 You find that the current redo log group is damaged and is not available for recovery.E、 You realized while performing a recovery that an archived redo log file needed for recovery is lost.

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考题 You are creating a Windows Forms application by using the .NET Framework 3.5 The application is used by a financial service provider.You discover that the service provider transfers large amounts of data by using XML.You need to read and validate the XMLdocuments in the most time efficient manner.Which technology should you use？（）A、The XmlReader classB、The XmlDocument classC、The XmlResolver classD、The LINQ to XML method

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考题单选题When using the anchor to steady the bow while approaching a dock you must be aware of the fact that（）.A the vessel will tend to take a large sheer towards the side where the anchor is downB steering control is ineffective in trying to turn to the side opposite to that of the anchor being usedC the anchor cable must never lead under the hullD using an offshore anchor decreases the chances of the anchor holding

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考题单选题When you adjust a thermostatic expansion valve, （）.A refrigerant must be bled off the sensing line before adjustments are madeB all refrigerant must be pumped into the receiver before adjustments are madeC time must be allowed for conditions to stabilize in the evaporator before further adjustments are madeD all refrigerant must be routed through the dehydrator while changing the superheat setting

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考题单选题Which IGP should you use to achieve scalability in a large enterprise network using Juniperenterprise routers?（）A RIPB BGPC OSPFD EIGRP

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考题单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A Memory AdvisorB Segment AdvisorC SQL Tuning AdvisorD SQL Access AdvisorE Automatic Database Diagnostic Monitor （ADDM）

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考题单选题Your vessel is taking on fuel oil when a small leak develops in the hose and you have ordered the pumping stoppedBefore resuming pumping，you should（）.A notify the terminal superintendentB place a large drip pan under the leak and ping the scuppersC repair the hose with a patchD replace the hose

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考题单选题In your test database， you find that a user’s session is executing a lot of SQL statements， resulting in the generation of a large number of trace files. While investigating the reason， you find that SQL trace has been enabled at the instance level. You want to disable SQL trace， remotely， only for that user session to reduce the volume of trace data being generated. How do you achieve this objective？（）A by setting the SQL_TRACE parameter to FALSE in the parameter fileB by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user sessionC by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user sessionD by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session

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考题单选题You are maintaining your database in Oracle10g. You find that the INDEXES index tablespace should be recovered. How will you recover the index tablespace？（）A by using the Flashback Database featureB by using RMAN incomplete recoveryC by performing a user-managed incomplete recoveryD by dropping and re-creating the index tablespace

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考题多选题You used the following command in Recovery Manager （RMAN） as part of the recovery process： RESTORE CONTROLFILE FROM AUTOBACKUP; How does RMAN find the control file autobackup？（）Aby using the trace fileBby using the alert log fileCby using the database IDDby using the server parameter fileEby using the V$CONTROLFILE viewFby using the autobackup format configuration setting

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考题单选题You work as a database administrator for Certkiller .com. While loading data into the Certkiller STAFF table using Oracle Enterprise Manager 10g Database Control， you find the status of the job as failed. On further investigation， you find the following error message in the output log： ORA-01653 unable to extend table HR. Certkiller STAFF by 8 intablespaceUSERS Which task would you perform to load the data successfully without affecting the users who are accessing the table？（）A Restart the database instance and run the jobB Truncate the Certkiller STAFF table and run the jobC Delete all rows from the Certkiller STAFF table and run the jobD Increase the size of the USERStablespacethe and run the jobE Increase the size of the database default permanenttablespaceand run the job

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考题单选题You are creating a Windows Forms application by using the .NET Framework 3.5 The application is used by a financial service provider.You discover that the service provider transfers large amounts of data by using XML.You need to read and validate the XMLdocuments in the most time efficient manner.Which technology should you use？（）A The XmlReader classB The XmlDocument classC The XmlResolver classD The LINQ to XML method

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考题单选题You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？（）A Memory AdvisorB Segment AdvisorC SQL Tuning AdvisorD SQL Access AdvisorE Automatic Database Diagnostic Monitor （ADDM）

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考题单选题In a chilled water air conditioning unit using a reciprocating compressor, the refrigerating effect of the primary refrigerant can be increased by （）.A increasing refrigerant pressure in the coilB increasing chilled water flow through the coolerC sub-cooling the refrigerant in the condenserD superheating the refrigerant in the compressor

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考题单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A Configure Java Pool to cache the java objects.B Configure Streams Pool to enable parallel processing.C Increase Shared Pool size to cache more PL/SQL objects.D Increase Database Buffer Cache size to increase cache hits.E Configure Large Pool to be used by RMAN and shared server.F Increase the total System Global Area （SGA） size to increase memory hits.

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考题单选题You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager （RMAN）. The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A Configure Java Pool to cache the java objects.B Configure Streams Pool to enable parallel processing.C Increase Shared Pool size to cache more PL/SQL objects.D Increase Database Buffer Cache size to increase cache hits.E Configure Large Pool to be used by RMAN and shared server.F Increase the total System Global Area （SGA） size to increase memory hits.

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考题单选题In your test database， you have created the ORDERS table as an index-organized table （IOT）. To facilitate faster querying， you have created a mapping table and a bitmap index on the ORDER_FILLED column. You observe that the query performance degrades when users perform a large volume of transactions. While investigating the reason， you find that the mapping table segment is fragmented， leading to poor performance. Which option would you use to defragment the mapping table without affecting the original table data？（）A export and import the mapping tableB drop and re-create the mapping tableC truncate the mapping table and reinsert the valuesD use the ALTER TABLE···REBUILD command to defragment the mapping table

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考题单选题If a leak occurred while loading diethylenetriamine，the chemical data guide indicates you would smell an odor similar to（）.A ammoniaB rotten eggsC gasolineD None of the above

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考题单选题You have many users complaining about slow inserts into a large table. While investigating the reason， you find that the number of indexes on the table is high. You want to find out which indexes are not being used. Which method would you follow to achieve this？（）A enable index monitoring and query the DBA_OBJECTS viewB enable index monitoring and query the DBA_INDEXES viewC enable index monitoring and query the V$OBJECT_USAGE viewD enable index monitoring and view the DBA_INDEXTYPE_COMMENTS view

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