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Visualexams nr0-013 Exam Detail

Exam Number/Code : nr0-013

Exam Name : Teradata Sql v2r5 Exam

Questions and Answers : 106

Update Time: 2009-10-02

　
　
Exam : NCR Teradata NR0-013
Title : Teradata Sql v2r5 Exam

1. Given the query
SELECT AVG(column1) FROM t1;
where t1 is an empty table, what is the result?
A. 0
B. Null
C. Error
D. No record found
Answer: B

2. What are three characteristics of views? (Choose three.)
A. Views can contain a WHERE clause.
B. Views cannot be used to UPDATE a table.
C. Views must change if columns are added to a table.
D. Views are not affected if columns are added to a table.
E. Views provide an additional level of security or authorization.
Answer: ADE

3. What two types of tables are available when users need to create a small temporary table but only have spool space allocated to them? (Choose two.)
A. Volatile
B. Derived
C. Permanent
D. Global Temporary
Answer: AB

4. What is the result of SELECT CAST(’bb12345′ AS CHAR(3)) in Teradata mode? (Note: b = blank)
A. 1
B. ‘bb1′
C. 123
D. 345
E. ‘123′
F. ‘345′
Answer: B

5. Which information does HELP TABLE <tablename> provide about the specified table?
A. column name, data type, and comment
B. column name, index, data type, and comment
C. column name, table id, data type, and comment
D. column name, constraint, data type, and comment
Answer: A

6. Click the Exhibit button.
Given the two tables and the query shown in the exhibit, what is the result set?
A. 5, NULL
B. 2, NULL
C. 2, 2300
D. 3, NULL
E. 2, 20000
Answer: B

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Visualexams nr0-016 Exam Detail

Exam Number/Code : nr0-016

Exam Name : Teradata Application Development v2r5 Exam

Questions and Answers : 104

Update Time: 2009-10-30

　
　
Exam : NCR Teradata NR0-016
Title : Teradata Application Development v2r5 Exam

1. How are Volatile tables similar to Derived tables? (Choose three.)
A. are local to the query
B. table definition kept in memory
C. are designed for optimal performance
D. have no Data Dictionary access or transaction locks
Answer: BCD

2. Which two types of journals can be defined for a table? (Choose two.)
A. Transient LOCAL AFTER JOURNAL
B. Transient UPDATE ONLY JOURNAL
C. Permanent UPDATE ONLY JOURNAL
D. Permanent LOCAL AFTER JOURNAL
E. Permanent DUAL BEFORE JOURNAL
Answer: DE

3. Which type of processing workload is least likely to justify the cost of upgrading a system?
A. executive report
B. daily sales report
C. quarter end report
D. nightly batch process
Answer: C

4. Which four factors are important to consider when deciding whether to calculate summary results on demand or to create a summary table? (Choose four.)
A. concurrency of users
B. typical rows per value
C. response time requirements
D. complexity of the calculations
E. frequency of summary request
F. volatility of the column to summarize
Answer: CDEF

5. What are two characteristics of an aggregate join index? (Choose two.)
A. can be directly referenced by a query
B. must contain more than one table reference
C. can be created using a Global Temporary table
D. automatically reflects changes in the underlying detail data
E. COUNT is automatically present if SUM is used
Answer: DE

6. Which two utilities can you use to export data for a report using RECORD mode from the Teradata database? (Choose two.)
A. BTEQ
B. TPump
C. FastExport
D. Teradata SQL Assistant
Answer: AC

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Visualexams nr0-011 Exam Detail

Exam Number/Code : nr0-011

Exam Name : Basics V2R5 Practice Exam Questions

Questions and Answers : 81

Update Time: 2009-10-25

　
　
Exam : NCR Teradata NR0-011
Title : Teradata Basics V2R5

1. Why would you have two physical LAN connections per node connected to the customer’s network?
A.for redundancy
B.to double the request speed
C.so two session connections can be made concurrently
D.so one can accept requests and the other can return responses
Answer: A

2. What are three main features of the Teradata database? (Choose three.)
A.portable to any platform
B.parallel aware optimizer
C.unconditional parallelism
D.automatic data distribution
Answer: BCD

3. What describes Teradata’s architecture?
A.shared data
B.shared nothing
C.shared memory
D.shared everything
Answer: B

4. Which three DBA tasks are not required in a Teradata environment? (Choose three.)
A.data modeling
B.index selection
C.database reorganizations
D.pre-prepare data for loading
E.pre-allocation of table space
Answer: CDE

5. How does Teradata handle data access? (Choose three.)
A.The PEs handle Session Control functions.
B.The BYNET sends a communication between the nodes.
C.The BYNET sends the answer set back to the application.
D.The AMPs convert the SQL into steps that are sent out by the Dispatcher.
E.The AMPs retrieve and perform database functions on the requested rows.
Answer: ABE

6. Which three are characteristics of Active Data Warehousing? (Choose three.)
A.allows for data redundancy
B.provides scalability to support large amounts of detailed data
C.allows users to directly update the operational data store (ODS)
D.provides an integrated environment that supports strategic and tactical queries
Answer: BCD

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Visualexams nr0-014 Exam Detail

Exam Number/Code : nr0-014

Exam Name : Teradata Administration v2r5 Exam

Questions and Answers : 88

Update Time: 2009-10-07

　
　
Exam : NCR Teradata NR0-014
Title : Teradata Administration v2r5 Exam

1. What does the CPU Eff % column measure in the ResNode macro?
A. efficiency of each CPU in each node
B. percentage of CPUs working efficiently in all nodes
C. how well the CPUs work in parallel across all nodes
D. percentage of CPUs working in parallel across all nodes
Answer: C

2. You are using Database Query Log (DBQL).
Logging can be invoked on _____. (Choose three.)
A. all users
B. a list of users
C. a list of account strings
D. a list of database objects
Answer: ABC

3. What is a benefit of assigning account strings at the profile level?
A. enables you to change all or part of the designation just once for many users
B. enables you to grant privileges to a group of users based on their account string
C. enables you to save space by reducing the number of rows inserted into DBC. AMPUsage
D. enables you to save space by reducing the number of rows inserted into DBC. AccessRights
Answer: A

4. When troubleshooting bottlenecks, which two utilizations should you examine first? (Choose two.)
A. disk utilization
B. CPU utilization
C. BYNET utilization
D. channel utilization
E. memory utilization
Answer: AB

5. How are inherited privileges applied by the database administrator?
A. by using GIVE to change user hierarchy
B. by automatically applying inherited privileges
C. by granting inherited privileges directly to the user
D. by granting privileges with the ALL option to a user
Answer: D

6. Which three utilities are limited by the MaxLoadTasks parameter in the DBSControl utility? (Choose three.)
A. BTEQ
B. TPump
C. FastLoad
D. MultiLoad
E. FastExport
Answer: CDE

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Visualexams nr0-012 Exam Detail

Exam Number/Code : nr0-012

Exam Name : Teradata Physical Implementation v2r5 Exam

Questions and Answers : 112

Update Time: 2009-10-30

　
　
Exam : NCR Teradata NR0-012
Title : Teradata Physical Implementation v2r5 Exam

1. Which two definitions are required on the referenced columns when implementing Referential Integrity? (Choose two.)
A.Unique
B.Nullable
C.Indexed
D.Not Null
Answer: AD

2. Which statement is true of join indexes?
A.They can be processed using MultiLoad.
B.They can be used to define Full Outer Joins.
C.They can be assigned a different primary index from the base table.
D.They can be used on a table with triggers and Referential Integrity constraints.
Answer: C

3. Which two statements about parallel steps are true? (Choose two.)
A.They are steps whose output may be used in a later statement.
B.They are sequentially numbered steps that may execute simultaneously.
C.They represent combined identical steps for two or more SQL statements within the request parcel.
D.They are seen in the creation of a spool file, which is subsequently used in more than one processing step.
Answer: AB

4. Which three join methods require spool files? (Choose three.)
A.Merge Join
B.Nested Join
C.Product Join
D.Exclusion Merge Join
Answer: ACD

5. During which phase of modeling design would a Partitioned Primary Index be defined?
A.Logical Data Modeling
B.Physical Data Modeling
C.Entity-Relationship Modeling
D.Business Information Modeling
Answer: B

6. What happens to a submitted query when a deadlock occurs?
A.Oldest query is aborted.
B.Youngest query is aborted.
C.Query waits for deadlock to resolve.
D.Dispatcher identifies which query to hold and waits for completion of deadlocking query.
Answer: B

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Visualexams nr0-017 Exam Detail

Exam Number/Code : nr0-017

Exam Name : Teradata Masters Update v2r5 Exam

Questions and Answers : 168

Update Time: 2009-10-11

　
　
Exam : NCR Teradata NR0-017
Title : Teradata masters update v2r5 exam

1. Which two functions does the Teradata Statistics Wizard perform? (Choose two.)
A. recommends secondary indexes
B. executes the statistics collection recommendations
C. displays current versus captured statistics information
D. reproduces Optimizer-related issues in a test environment
E. recommends recollection of statistics based on table skew
Answer: BE

2. Teradata Visual Explain supports the comparison of how many plans?
A. 4
B. 16
C. 32
D. unlimited
Answer: D

3. What are two functions of the Teradata Index Wizard? (Choose two.)
A. allows for "what-if" analysis
B. allows you to schedule index creation
C. allows importing of workload from Teradata Manager
D. allows for a visual explanation of the index creation plan
Answer: AB

4. Using the Teradata Statistics Wizard, workloads may be _____. (Choose two.)
A. defined from Query Capture Database (QCD) statements
B. imported from another system
C. defined from the Workload Monitor
D. defined from Teradata Dynamic Query Manager (TDQM) statements
Answer: AB

5. To use the Teradata System Emulation Tool (TSET), Target Level Emulation must first be enabled on a test system using which utility?
A. Ferret
B. DBSControl
C. Vproc Manager
D. Teradata Performance Monitor
Answer: B

6. Which two can be used to validate the effectiveness and usefulness of statistics on a given query? (Choose two.)
A. HELP STATISTICS
B. Teradata Statistics Wizard
C. checking how recently the statistics were refreshed
D. checking the confidence level in the EXPLAIN output
Answer: BD

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Visualexams nr0-015 Exam Detail

Exam Number/Code : nr0-015

Exam Name : Teradata Design Architecture v2r5 Exam

Questions and Answers : 120

Update Time: 2009-10-30

　
　
Exam : NCR Teradata NR0-015
Title : Teradata design architecture v2r5 exam

1. Which three processes are useful when determining a workload definition for TDQM? (Choose three.)
A. DBQL analysis of join types for the schedule period
B. DBQL analysis of full table scans requested during the period
C. the number of Resource Partitions defined in Priority Scheduler
D. Priority Scheduler output containing queue length and wait times
E. the Statistics Wizard analysis of needed statistics for this workload
Answer: ABD

2. Which Teradata Analyst tool is used to perform a "what-if" analysis on a given workload to determine the optimal set of secondary indexes?
A. Teradata Index Wizard
B. Teradata Visual Explain
C. Teradata Statistics Wizard
D. Teradata System Emulation Tool
Answer: A

3. What improves overall job mix and throughput? (Choose three.)
A. changing the poorly performing queries to $R status
B. defining Allocation Groups for different times of the day
C. maintaining development and testing users in a separate Allocation Group
D. using the Priority Scheduler Administrator to set slow AMPs to a higher priority
E. using the MODIFY USER statement to change the ACCOUNT for users receiving too much or too little CPU
Answer: BCE

4. When tuning for tactical queries in Priority Scheduler, which two options are available? (Choose two.)
A. reserve AMP Worker Tasks for tactical queries
B. place the users submitting tactical queries in Allocation Group 0
C. place the users submitting tactical queries in Resource Partition 0
D. place the users submitting tactical queries in Allocation Groups with the highest weight
Answer: AD

5. What should an analysis defining TDQM restrictions include? (Choose three.)
A. the client resources available during the peak periods
B. a list of users whose access must be above restriction
C. a projection of the growth pattern for major tables in the database
D. an understanding of the timing requirements for maintenance of specific tables or databases
E. a listing of the requirements for critical applications and the times of day that are most critical
Answer: BDE

6. What can you do to improve a query’s performance without restarting Teradata? (Choose three.)
A. increase the number of cylinder slots in FSG Cache
B. modify the weights assigned to the user’s Allocation Group
C. modify the weights assigned to the user’s Resource Partition
D. change the priority of the user’s session which is running slow
E. modify the user’s account to increase the spool space of the user
Answer: BCD

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