Wednesday, May 31, 2017

C2090-320 DB2 11 Fundamentals for z/OS

Test information:
Number of questions: 63
Time allowed in minutes: 90
Required passing score: 64%
Languages: English

This Database Associate certification is an entry level exam for a user of any of the DB2 for z/OS family of products. This individual is knowledgeable about the fundamental concepts of DB2 11 for z/OS through either hands on experience or formal and informal education. The database associate should have an in-depth knowledge of the basic to intermediate tasks required in day-to-day administration, basic SQL (Structured Query Language), understand which additional products are available with DB2 11, understand how to create databases and database objects, and have a basic knowledge of database security and transaction isolation.

Section 1 - Working with SQL and XML (14%)
Basic ability to write a DML SQL statement
Basic ability to access and process XML data (XQuery, Xpath)
Basic knowledge of most commonly used special registers
Basic knowledge of built-in functions

Section 2 - Security (8%)
Basic knowledge of restricting data access (authorities, privileges, views, profiles, roles, trusted contexts)
Basic ability to write a Data Control Language (DCL) SQL statement

Section 3 - Planning (17%)
Basic ability to connect to DB2 servers (demonstrate ability to use remote access)
Basic knowledge of different types of tables (Base, MQT, Auxiliary, Partitioned, Temporal � at a high level; when is it appropriate to use each type) and table spaces
Basic knowledge of subsystem parameters
Basic knowledge of DB2 architecture (address spaces, logs, IRLM)
Basic knowledge of data sharing concepts
Basic knowledge of database workloads (transactional processing vs. analytics)
Basic knowledge of encoding scheme concepts

Section 4 - Operations (14%)
Basic knowledge of DB2 commands and DSN commands
Basic knowledge of DB2 utilities
Basic knowledge of troubleshooting (Explain, SQL Codes)

Section 5 - Data Concurrency (10%)
Basic knowledge of transaction management (COMMIT, ROLLBACK, AUTOCOMMIT and SAVEPOINT)
Basic knowledge of locking
Given a situation, basic knowledge to identify the isolation levels that should be used

Section 6 - Application Design (19%)
Basic ability to create and call a stored procedure or a user defined function (understanding of passing parameters and obtaining results)
Basic knowledge of temporary tables (how they are created and when they should be used)
Basic knowledge of triggers (how they function; when they might be used)
Basic knowledge of program preparation and BIND options
Basic knowledge of referential integrity and constraints
Basic knowledge of non-relational data concepts (XML data, LOB data)
Basic knowledge of Temporal (Time Travel) Tables - System-period, Application-period, and Bi-temporal - ability to create and query

Section 7 - Working with Database Objects (17%)
Basic ability to demonstrate usage of IBM-supplied and user-defined data types
Basic ability to write a DDL SQL statement
Basic ability to identify characteristics and properties of DB2 objects (Tables, Indexes, Views,...)
Basic ability to look up information in the DB2 catalog
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Friday, May 26, 2017

C2090-311 IBM DB2 10.5 DBA for LUW Upgrade from DB2 10.1

Test information:
Number of questions: 30
Time allowed in minutes: 60
Required passing score: 60%
Languages: English, Japanese
If you are knowledgeable with DB2 10.5 and are capable of performing the intermediate to advanced skills required in the day-to-day administration of DB2 instances and databases, you may benefit from this certification role.
Section 1 – DB2 Server Management (17%)
Demonstrate the ability to configure DB2 workload for analytics system
DB2_WORKLOAD=ANALYTICS
DB CFG DFT_TABLE_ORG COLUMN
DB CFG DATABASE PAGE SIZE = 32K
DB CFG DFT_DEGREE=ANY
DB CFG DFT_EXTENT_SZ=4
Importance of UTIL_HEAP_SZ CFG for COLUMN ORGANIZED tables load
Demonstrate the ability to use autonomic features in DB2 10.5 BLU Acceleration
AUTO_RUNSTATS is not supported for COLUM ORGANIZED tables
Automatic Space Reclaims in BLU acceleration tables
Demonstrate knowledge of Data Studio 4.1
Demonstrate the ability to use Automated workload management when workload set to ANALYTICS
Section 2 – Physical Design (37%)
Demonstrate the ability to understand industry leading DB2 10.5 BLU Acceleration 7 big ideas
Simple to Impement and Use – No Indexes, No MDC, No MQT, No Partitioning, No Statistical Views
Friendly Huffman encoding – More frequent the values, the fewer bits in dictionary and packed registers. Performing most operations on encoded values.
Usage of SIMD Instruction Sets
Maximize CPU cache
Column Store – Minimal IO / Work performed directly on columns / Improved memory density / Cache efficiency
Memory Caching Facility – Leave the interesting data instead of traditional LRU or MRU algorithms
Data Skipping through SYNOPSIS Tables
Demonstrate the ability to understand and implement compression features
Table Compression – Data Compression / Value Compression / Adaptive Compression / COLUMN ORGANIZED table compression
Database backup compression
Demonstrate the ability to use expression based indexes and the statistics on those expression based indexes
Using RUNSTATS
Using Statistics Profiles
Automatic Statistics Collection
Knowledge of Oracle Migration and Compatibility Features in DB2 10.5
Demonstrate the ability to use Information Uniqueness Constraints
Knowledge of SQL compatibility enhancements
Extended row size support
Exclude null keys support
Section 3 – Monitoring DB2 Activity (17%)
Demonstrate the ability to use new monitor elements
Demonstrate the ability to use new monitor elements to monitor dynamic prefetch requests for data in column-oriented tables.
Demonstrate the ability to use new new monitor elements to measure column data size.
Demonstrate the ability to use new monitor elements to measure time spent in Columnar Data Engine (CDE)
Demonstrate knowledge of the new EXPLAIN enhancements Knowledge of SQL compatibility enhancements
Demonstrate the ability to understand new CTQ (Column Table Queue) Operator in the explain
Knowledge of new monitoring function – MON_GET_ROUTINE
Demonstrate knowledge of HADR monitoring enhancements
HEARTBEAT_MISSED
HEARTBEAT_EXPECTED
STANDBY_SPOOL_PERCENT
STANDBY_ERROR_TIME
Section 4 – High Availability (17%)
Knowledge of enhancements to pureScale
Understand the ability to use Online REORG in pureScale
Knowledge of replay member in pureScale standby cluster
Knowledge of HADR setup in a pureScale cluster environment
Demonstrate the ability to undestand Rolling Fix Pack Updates in pureScale
Demonstrate the ability to undestand STMM Multi-Tenancy Feature in pureScale
Demonstrate the ability to understand Explicit Hierarchical Locking Multi-Tenancy in pureScale system
Knowledge of DB2 Advanced Copy Services customized scripts
Section 5 – Utilities (13%)
Demonstrate the ability to use IBM Optim Query Workload Tuner
The Workload Table Organization Advisor
Support for comparing access plans before and after
Access Plan Explorer and in access plan graphs for the new CTQ operator
Demonstrate the ability to use DB2 10.5 Utilities
db2convert
LOAD Command – Additional ANALYZE phase for COLUMN ORGANIZED tables
Default AUTOMATIC STATISTICS COLLECTION in LOAD command for COLUMN ORGANIZED tables
IBM Certified Database Administrator – DB2 10.5 DBA for LUW Upgrade from DB2 10.1
Job Role Description / Target Audience
If you are knowledgeable with DB2 10.5 and are capable of performing the intermediate to advanced skills required in the day-to-day administration of DB2 instances and databases, you may benefit from this certification role.
This exam covers only the new features and functionality of DB2 10.5 for Linux, UNIX and Windows – you must possess the DB2 10.1 DBA for Linux, UNIX and Windows certification in order to qualify for the upgrade exam.
C2090-311 IBM DB2 10.5 DBA for LUW Upgrade from DB2 10.1
QUESTION 1
How is the Query Workload Tuner license installed and enabled?
A. With Data Studio, using the license activation kit.
B. By executing the db2licm command after data server installation.
C. With the Optim Performance Manager Server, using the license activation kit.
D. By running the Query Workload Tuner license activation command on the appropriate
WebSphere server.
Answer: A
Explanation:
QUESTION 2
If the DB2_WORKLOAD registry variable has not been set which database manager configuration
parameter must be modified, before a query that accesses a column-organized table can be
executed?
A. INTRA_PARALLEL
B. QUERY_HEAP_SZ
C. MAXIMUM DEGREE
D. SHEAPTHRES SHR
Answer: A

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