You are analyzing the performance of a SQL Azure database.   You need to recommend an approach for identifying the indexes that should be added to improve database performance.  What should you recommend？（）

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• You executed the following procedure to collect statistics regarding an index：       SQL>ANALYZE INDEX EMP_ID VALIDATE STRUCTURE；   Which view will you use to determine whether you need to rebuild the index or not？（） 

  A .  INDEX_STATS B .  DBA_INDEXES C .  DBA_IND_COLUMNS D .  V$OBJECT_USAGE

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• You are analyzing how Oracle processes user statements. SQL and PL/SQL parse information is stored in which of the following database memory areas? （）

  A . Library cache  B . Row cache C . Dictionary cache  D . Large area  E . Buffer cache

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• In which service component of the wireless operate phase are incident trends analyzed to identifypatterns and systemic conditions？（）

  A . System Monitoring B . Security Administration C . Operations Setup D . Problem Management

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• You issued the RMAN>SHOW ALL； command. The output of this command is as follows： https://assets.asklib.com/images/image2/2018080116074760626.jpg After analyzing the output， which conclusion will you draw？（）

  A .  The current control file is not automatically backed up every time you perform a backup. B .  The backups save space on the storage media. C .  While performing backups across a network， the network bandwidth is reduced. D .  The backups consist of backup pieces.

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• You executed the following code：   BEGIN   DBMS_SCHEDULER.SET_ATTRIBUTE  （  NAME => ’JOB_A’，   ATTRIBUTE => ’JOB_PRIORITY’，   VALUE => 7）；   END；  /   After analyzing the above code， what conclusion will you draw？（）  

  A .  The code will be executed successfully. B .  The code will not be executed successfully because the value of the VALUE parameter must be 1， 2， or 3. C .  The code will not be executed successfully because the value of the VALUE parameter must range between 1 and 5. D .  The code will not be executed successfully because no SET_ATTRIBUTE procedure exists in the DBMS_SCHDULER package.

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• Ⅲ. There are four choices following each statement. Mark the choice that can best complete the statement: If a linguistic study describes and analyzes the language people actually use, it is said to be （）

  A . prescriptive B . analytic C . descriptive D . linguistic

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• You want to use the SQL Tuning Advisor to generate recommendations for badly written SQL statements in your development environment. Which three sources can you select for the advisor to analyze？（）

  A .  Top SQL B .  snapshots C .  SQL Tuning sets D .  index access path E .  optimizer statistics F .  materialized view log

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• You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing.  What information is captured as part of this process？（）

  A .  the SQL text B .  the execution plan C .  the execution context D .  the execution frequency E .  the system change number （SCN）

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• You want to analyze a SQL Tuning Set （STS） using SQL Performance Analyzer in a test database. Which two statements are true regarding the activities performed during the test execution of SQLs in a SQL Tuning Set？（）

  A .  Every SQL statement in the STS is considered only once for execution. B .  The SQL statements in the STS are executed concurrently to produce the execution plan and execution statistics. C .  The execution plan and execution statistics are computed for each SQL statement in the STS.  D .  The effects of DDL and DML are considered to produce the execution plan and execution statistics.

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• - You are right. How do you analyze our weaknesses？一 we put less emphasis on the overall design.（）    

  A . I’m afraid B . I tell you C . I see

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• You want to check all the data blocks being written to the datafiles by analyzing the data on each block every time the DBWn process writes.   Which action will you perform to check the data blocks？（）

  A .  Set the value of the DB_BLOCK_CHECKING initialization parameter to TRUE B .  Use the ANALYZE utility. C .  Use the DBVERIFY utility. D .  Use the DBMS_REPAIR package.

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• In which service component of the wireless operate phase are incident trends analyzed to identify patternsand systemic conditions？（）

  A . System Monitoring B . Security Administration C . Operations Setup D . Problem Management

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• While using a packet analyzer， you notice four additional bytes being added to the packets in the  Company network.  Which protocol inserts a four byte tag into the Ethernet frame and recalculates  CRC value？  （）

  A .  DTP B .  VTP C .  802.1Q D .  ISL E .  None of the other alternatives apply

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• You want to use the SQL Tuning Advisor to generate recommendations for badly written SQL statements in your development environment.   Which three sources can you select for the advisor to analyze？ （）

  A . Top SQL B . snapshots C . SQL Tuning sets D . index access path E . optimizer statistics F . materialized view log

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• Click the Exhibit（s） button to view the DEPARTMENTS plan. https://assets.asklib.com/images/image2/2018080117241174602.jpg After analyzing the Exhibit， what conclusion will you draw？（）

  A .  The CPU cannot be assigned to the members of the SYS_GROUP group. B .  The members of the OTHER_GROUPS group will always be assigned 100 percent CPU. C .  The members of the OTHER_GROUPS group will never be assigned 100 percent CPU. D .  The members of the OTHER_GROUPS group will be assigned 100 percent CPU if the CPU is not assigned to the members of the SYS_GROUP group and the PAYROLL， SALES， and MARKETING groups.

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• You plan to use SQL Performance Analyzer to analyze the SQL workload. You created a SQL Tuning Set as a part of the workload capturing. What information is captured as part of this process?（）

  A . the SQL text SQL B . the execution plan C . the execution context D . the execution frequency E . the system change number (SCN)

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• Refer to the exhibit. Analyze the two traceroutes that are displayed. Which of these statements is correct in describing what most likely caused the traceroute differences?（）https://assets.asklib.com/images/image2/201807311525043528.jpg

  A . Do not fragment has been configured on PE11. B . MPLS has been disabled on routers P11 and P12. C . An access list has been created on P11 to block traceroutes from PE11. D . The no mpls ip propgate-ttl local command has been configured on PE11 E . ICMP has been disabled on the intermediary routers between PE11 and PE12.

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• You issued the RMAN>SHOW ALL； command. The output of the command is as follows： https://assets.asklib.com/images/image2/2018080116014456210.jpg After analyzing this output， what conclusion can you draw？ （）

  A .  If you perform a backup across a network， then the backup will reduce the bandwidth. B .  If you perform a backup of a datafile， then the backup will be the same as the operating system copy of the datafile. C .  If you perform a backup of a single datafile， then the control file will not be backed up.  D .  The maximum size of each backup set is 10MB E .  The backups will be performed on the disk.

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• You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?（）

  A . Writes buffers to disk  B . Writes current redo log number to datafile headers  C . Writes redo log information to disk  D . Reads information into memory for user

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• Identify three scenarios in which you would recommend the use of SQL Performance Analyzer to analyzeimpact on the performance of SQL statements.（）

  A . Change in the Oracle Database version B . Change in your network infrastructure C . Change in the hardware configuration of the database server D . Migration of database storage from non-ASM to ASM storage E . Database and operating system upgrade

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• The two Whip speakers are to analyze the motion from different perspectives and offer new arguments. _____

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• You are analyzing a sample of money managers returns from the population of 900. According to Chebyshevs inequality, what is the minimum number of managers would you expect to lie within 2.5 standard

  A．360 B．540 C．756

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• Your company manages the stock of various advertising articles on a quantity and value basis.In the future, you want to analyze the value of these advertising articles.Unfortunately, the articles have been created with different material types, material groups, valuation classes, and in different number range intervals.For this reason, you want to change the assignments.Which of the following changes are possible, even if stock exists for the articles？ Please choose the correct answer.()

  A.You create a new valuation class and then change the valuation class of the advertising articles to the new valuation class B.You create a new material type and then change the material type of the advertising articles to the new material type C.You create a new material group and then change the material group of the advertising articles to the new material group D.You create a new number range interval and then change the material numbers of the advertising articles to a number in the new number range interval

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• 请阅读短文，完成此题。When we analyze the salt salinity（盐溶度 ） of ocean waters, we find that it varies only slightly from place to place. Nevertheless, some of these small changes are important. There are three b

  A、the analysis of the salinity of ocean waters B、the causes of the variation in oceanic salinity C、the importance of the changes in oceanic salinity D、the different forms of salts in ocean waters

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