Download PureData System for Analytics v7.1.C2090-560.PracticeDumps.2017-12-03.134q.tqb

Vendor: IBM
Exam Code: C2090-560
Exam Name: PureData System for Analytics v7.1
Date: Dec 03, 2017
File Size: 989 KB
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Demo Questions

Question 1
Which statement regarding temporary tables is TRUE?
  1. They are limited to 1 terabyte in size
  2. They may include a DISTRIBUTE ON clause
  3. They are limited to 16 tables per user per database
  4. They will be included in any nzbackup of the database
Correct answer: B
Question 2
Which procedural logic is NOT supported by NZPLSQL?
  1. Scrollable cursors
  2. Looping (while, for)
  3. Conditionals (if, else)
  4. Returning a scalar result or result set
Correct answer: A
Question 3
Which of the following properties about the rowid column is FALSE?
  1. At installation the initial rowid value is 100,000
  2. Rowid values are sequential across each table
  3. The system automatically assigns values for the column
  4. The host assigns a range of sequential rowids to each SPU
Correct answer: C
Question 4
Columns in a table may be zone mapped. How are those columns chosen?
  1. They are automatically selected by the system
  2. They are always based on the samecolumns as the table's distribution key
  3. They are added via the ALTER TABLE ADD INDEX(column_name) statement
  4. They are added via the ALTER TABLE ADD ZONEMAP(column_name) statement
Correct answer: A
Question 5
Select the statement about the ENABLE_USER_SCHEMA variable that is TRUE in a system using Netezza Performance Server Release 7.0.3 or higher.
  1. The default value for this variable is FALSE
  2. This variable controls whether the system allows users to create and manage multiple schemas
  3. If the variable is set to TRUE and the user does not specify a schema, the system will connect to the default schema for the database
  4. If the variable is set to FALSE and the user does not specify a schema, the system will connect to a schema that matches the database user name
Correct answer: B
Question 6
When using a CREATE TABLE statement, constraints can be specified at the column level. Which two constraints are NOT automatically enforced via the database? (Choose two.)
  1. NULL
  2. UNIQUE
  3. NOT NULL
  4. RIMARY KEY
  5. DEFAULT value
Correct answer: BD
Question 7
What is the host Linux file that must be modified to permanently adjust optimizer settings such as enabling schema support?
  1. /nz/data/postgresql.conf
  2. /nz/data/config/system.cfg
  3. /nz/kit/sys/initTopology.cfg
  4. /nz/kit/log/sysmgr/sysmgr.log
Correct answer: A
Question 8
What columns contain row count information in the system tables? (Choose two.)
  1. STAHIVAL
  2. RELREFS
  3. STALOVAL
  4. RELTUPLES
  5. ATTDISPERSION
Correct answer: BE
Question 9
Which statement or operation will cause IBM Netezza Replication Services to use the "By- VALUE" replication gmethod?
  1. Insert data from a non-replicated database
  2. LIMIT ALL
  3. RANDOMO
  4. A & C
  5. B & C
Correct answer: C
Question 10
The CUSTOMER table is distributed on "c_custkey". 
The ORDERS table is distributed on "o_custkey". 
Please refer to the SQL Query below:
   
Which of the following statements is TRUE?
  1. The query plan will show a double redistribute for both tables CUSTOMER and ORDERS followed by a HashJoinNode to compare all rows
  2. The query plan will show a broadcast for table CUSTOMER so that all rows in CUSTOMER can be compared to all rows in ORDERS using a HashJoinNode
  3. The query plan will show a broadcast for table CUSTOMER so that all rows in CUSTOMER can be compared to all rows in ORDERS using an ExprJoinNode
  4. The query plan will show a redistribute for table CUSTOMER so that all rows in CUSTOMER can be compared to all rows in ORDERS using an ExprJoinNode
Correct answer: D
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