pass4sure MCITP 70-442 v2.93

Designing and Optimizing Data Access by Using Microsoft SQL Server 2005 is in development : 70-442 Exam

Exam Number/Code: 70-442
Exam Name: Designing and Optimizing Data Access by Using Microsoft SQL Server 2005 is in development
VUE Code: 70-442
Questions Type: Single choice,
Exam Language(s): English

“Designing and Optimizing Data Access by Using Microsoft SQL Server 2005 is in development”, also known as 70-442 exam, is a Microsoft certification.
Preparing for the 70-442 exam? Searching 70-442 Test Questions, 70-442 Practice Exam, 70-442 Dumps?

With the complete collection of questions and answers, Pass4sure has assembled to take you through 110 Q&A to your 70-442 Exam preparation. In the 70-442 exam resources, you will cover every field and category in MCITP helping to ready you for your successful Microsoft Certification.

Candidates for this exam are professional database developers who design and implement database solutions. They have three or more years dedicated to database work, which may include writing Transact-SQL queries, designing and implementing programming objects, optimizing databases, designing databases at both the conceptual and logical levels, and implementing databases at the physical level. The typical work environment is an enterprise or a medium-sized organization. Candidates should be experienced in using Microsoft SQL Server 2005. Candidates for this exam should be an expert in the following areas:

•	Writing Transact-SQL queries
•	Programming databases
•	Troubleshooting programming objects (stored procedures, triggers, user-defined functions (UDFs), user-defined types (UDTs), and queries)
•	Performing database performance tuning and optimization
•	Designing databases, at both the conceptual and logical levels
•	Implementing databases at the physical level
•	Designing and troubleshooting the data access layer of the application
•	Gathering business requirements

Exam news
The Microsoft Certified Professional (PRO) exam, Exam 70-442: PRO: Designing and Optimizing Data Access by Using Microsoft SQL Server 2005, became available in April 2006.

Audience profile
Candidates for this exam are professional database developers who design and implement database solutions. They have three or more years dedicated to database work, which may include writing Transact-SQL queries, designing and implementing programming objects, optimizing databases, designing databases at both the conceptual and logical levels, and implementing databases at the physical level. The typical work environment is an enterprise or a medium-sized organization. Candidates should be experienced in using Microsoft SQL Server 2005.

Candidates for this exam should have expertise in the following areas:

• Writing Transact-SQL queries

• Programming databases

• Troubleshooting programming objects (stored procedures, triggers, user-defined functions (UDFs), user-defined types (UDTs), and queries)

• Performing database performance tuning and optimization

• Designing databases, at both the conceptual and logical levels

• Implementing databases at the physical level

• Designing and troubleshooting the data access layer of the application

• Gathering business requirements

Credit toward certification
When you pass Exam 70-442: PRO: Designing and Optimizing Data Access by Using Microsoft SQL Server 2005, you earn credit toward the following certifications:

• Microsoft Certified IT Professional: Database Developer

Preparation tools and resources
To help you prepare for this exam, Microsoft Learning recommends that you have hands-on experience with the product and that you use the following training resources. These training resources do not necessarily cover all of the topics listed in the “Skills measured” section.

Classroom training Microsoft E-Learning Microsoft Press books Practice tests
Course 2781: Designing Microsoft SQL Server 2005 Server-Side Solutions (three days)

Course 2783: Designing the Data Tier for Microsoft SQL Server 2005 (one day)

Course 2784: Tuning and Optimizing Queries Using Microsoft SQL Server 2005 (three days)
Collection 2781: Designing Microsoft SQL Server 2005 Server-Side Solutions

Collection 2783: Designing the Data Tier for Microsoft SQL Server 2005

Collection 2784: Tuning and Optimizing Queries Using Microsoft SQL Server 2005
MCITP Self-Paced Training Kit (Exam 70-442): Designing and Optimizing Data Access by Using Microsoft SQL Server 2005

Inside Microsoft SQL Server 2005: The Storage Engine

Inside Microsoft SQL Server 2005: T-SQL Programming

Inside Microsoft SQL Server 2005: Query Tuning and Optimization

Programming Microsoft SQL Server 2005

Microsoft SQL Server 2005: Database Essentials Step by Step
MeasureUp
(Measureup.com)

Self Test Software
(Selftestsoftware.com)

Microsoft online resources
• Learning Plan: Get started by creating a step-by-step study guide that is based on recommended resources for this exam.

• Microsoft SQL Server 2005 – Learning Portal: Find special offers and information on training and certification.

• TechNet: Designed for IT professionals, this site includes how-to instructions, best practices, downloads, technical resources, newsgroups, and chats.

• MSDN: Designed for developers, the Microsoft Developer Network (MSDN) features code samples, technical articles, downloads, newsgroups, and chats.

• Microsoft SQL Server TechCenter: Find SQL Server–related resources from Microsoft and the broader SQL Server community.

• Microsoft SQL Server Developer Center: Find SQL Server 2005 articles, downloads, support, and community resources for developers.

• Microsoft Learning Community: Join newsgroups and visit community forums to connect with peers for suggestions on training resources and advice on your certification path and studies.

Skills measured
This certification exam measures your ability to design and optimize data access by using SQL Server 2005. Before you take the exam, you should be proficient in the job skills that are listed in the following table.

KEY: = The course provides a general introductory overview of this task. You will need to supplement the course with additional work. = The course includes some material to prepare you for this task. You will need to supplement the course with additional work. = The course includes material to prepare you for this task.
Skills measured by Exam 70-442 Course 2781 Course 2783 Course 2784
Designing Efficient Access to a SQL Server Service
Design appropriate data access technologies.

Design an appropriate data access object model.

Design a cursor strategy for a data access component.

• Decide when to use cursors.

• Decide how to maximize cursor performance.

• Detect which applications are using cursors and evaluate whether to remove them.

Design caching strategies.

• Select ADO.NET caching.

• Design custom caching functionality.

• Design a refresh strategy for cached data.

Design client libraries to write applications that administer a SQL Server service.

• Design server management objects (SMO) applications.

• Design replication management objects (RMO) applications.

• Design automation management objects (AMO) applications.

• Design SQL Server Networking Interface (SNI) for asynchronous queries.

Design queries that use multiple active result sets (MARS).

• Decide when MARS queries are appropriate.

• Choose an appropriate transaction isolation level when you use MARS.

• Choose when to use Asynchronous queries.

Designing a Database Query Strategy
Write and modify queries.

• Write queries.

• Modify queries to improve query performance.

Design queries for retrieving data from XML sources.

• Select the correct attributes.

• Select the correct nodes.

• Filter by values of attributes and values of elements.

• Include relational data, such as columns and variables, in the result of an XQuery expression.

• Include XML attribute or node values in a tabular result set.

• Update, insert, or delete relational data based on XML parameters to stored procedures.

• Debug and troubleshoot queries against XML data sources.

Design a cursor strategy.

• Design cursor logic.

• Design cursors that work together with dynamic SQL execution.

• Select an appropriate cursor type.

• Design cursors that efficiently use server memory.

• Design cursors that minimize blocking.

• Design a strategy that minimizes or eliminates the use of cursors.

Designing Error-Handling Routines
Design code that validates input data and permissions.

Design code that detects and reacts to errors.

Design user-defined messages to communicate application events.

Designing a Transaction Strategy
Manage concurrency by selecting the appropriate transaction isolation levels.

Design the locking granularity level.

Design transaction scopes.

Design code that uses transactions.

Performance Tuning a Database and a Database Application
Optimize and tune queries for performance.

• Evaluate query performance.

• Analyze query plans.

• Modify queries to improve performance.

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• Test queries for improved performance.

• Detect locking problems.

• Modify queries to optimize client and server performance.

• Rewrite subqueries to joins.

• Design queries that have search arguments (SARGs).

• Convert single-row statements into set-based queries.

Optimize indexing strategies.

• Design an index strategy.

• Analyze index use across an application.

• Add, remove, or redesign indexes.

• Optimize index-to-table-size ratio.

Scale database applications.

• Specify a data-partitioning model.

• Design queries that target multiple servers.

• Implement scale-out techniques like federated database, service broker, distributed partitioned views.

• Design applications to distribute data and workload transparently.

• Identify code or processes that can be moved to a different tier to improve performance.

• Rewrite algorithms to improve efficiency.

Resolve performance problems.

• Analyze application performance across multiple users.

• Capture workload information.

• Find out the causes of performance problems.

• Specify resolutions such as: changing algorithms, scaling up, and scaling out, terminating a session.

Optimize data storage.

• Choose column data types to reduce storage requirements across the enterprise.

• Design appropriate use of varchar across the enterprise.

• Denormalize entities to minimize page reads per query.

• Optimize table width.
Topic 1, National Retailers, Scenario

COMPANY OVERVIEW Background
National Retailers operates as a retailer that specializes in vintage dolls and handmade porcelain dolls as well as action figures. The National Retailers Company has four factories: one each in Chicago, Los Angeles, Miami, and Dallas. Chicago hosts the National Retailers head quarters. Apart from the four factories, National Retailers has sales representatives that works in 50 cities across the United States. These sales representatives telecommute and usually place orders from customers with the closest
factory. Salespeople are paid on commission. Commission checks are generated monthly and include commission on all orders paid for in that month.
Products and Services on offer
National Retailers operates as a retailer that specializes in vintage dolls, handmade porcelain dolls, and action figures. National Retailers sells mostly to department stores,
discount stores, and specialty stores. In future National Retailers hope to expand business and thus wants to start selling their exclusive doll line on their Web site.
Future Plans
Since its inception, National Retailers has grown rapidly from humble beginnings with a single factory in Chicago to a multi-location company that currently has four factories supplying the whole of the United States. The current database instruction is unable to handle the National Retailers requirements. As a result product shipments have been delayed due to stocking levels for popular products not meeting the demand. In the mean time the less popular doll ranges have been stored for too long and some has even been shipped to customers by mistake.
To this end National Retailers wants to upgrade its current system to Microsoft SQL Server 2005. They also want to centralize operations to accommodate more effective management of the factories as well as the order fulfillment process.
The National Retailers management wants to expand business by selling their exclusive doll line on the company Web site.
EXISTING ENVIRONMENT
Existing Application and Supporting Environment
The National Retailers network consists or two Active Directory forests, namely Corporate and Manufacturing respectively. Each of the factories represents its own domain. Currently all domain controllers are running Microsoft Windows 2000 Server.
There are five servers that are used as database servers. All database servers are running Microsoft SQL Server 2000. NRCH-DB02 enjoys membership of the corporate domain. All other database servers belong to the Manufacturing domain. The following table illustrates the current Database Servers and their specifications:

The Chicago head quarters have two database administrators and three network administrators. These employees vacillate between the head quarters and the factories when required.
At present the inventory application allows users to enter criteria. It also builds
Transact-SQL queries dynamically by concatenating the data entered by users.
At present the order management application calls stored procedures that accept a
Transact-SQL string as the only parameter.
Connectivity between office and factories
Only the Chicago office is connected to the Internet. The National Retailers factories are not currently connected to the Internet. A server named ISA-Chicago, in the Chicago
office is configured with Internet Security and Acceleration Service (ISA). This ISA
server separates the internal network from the Internet.
The factories are making use of dedicated links to connect to the Chicago office. Each factory is responsible for the management of its own product tracking. They all make use
of the same custom application for product tracking. The following table illustrates the current database storage requirements:

Regularly at the end of each month, reports are generated manually and e-mailed to the Chicago office. Monthly sales and invoice aging information is included in these reports. The Chicago office handles debt collection. All customers with an outstanding balance
over 60 days are also sent to the Chicago office. The accounting department makes use of
a collections application that imports XML data.
The ProductLine and ProductLineDetails tables contain information about each product and the parts and components it contains. The ProductLineDetails table contains a
foreign key constraint that references the Parts and Components table. The Parts and Components table contains a foreign key constraint that references the Suppliers table. The Orders and OrderDetails tables contain information about each order. The Orders table has a foreign key constraint that references the Customers table. The OrderDetails
table has a foreign key constraint that references the Products table. The Products table is referenced by the ProductLine table’s foreign key constraint.
Envisaged Environment

The National Retailers management wants all database servers to be upgraded to
Microsoft SQL Server 2005.
The future online Sales application will be outsourced. NRCH-DB02 will host a database
to support the e-commerce application. The e-commerce application will make use of Simple Object Access Protocol (SOAP) to retrieve product information and submit orders.
Consolidation of data and revision of the existing applications will be done when required.
The factories will not be provided with Internet access.
BUSINESS REQUIREMENTS
An annual growth rate of 10% per annum is envisaged for the next five years.
Accessibility of data: Accounting data
All accounts data, i.e. accounts receivable and payable, must remain immediately accessible for a period of six months after the end of the fiscal year in which the invoice was paid. After this period, the same data must be stored for another seven year period. Usually this data will then hardly be accessed if ever.
Information about customer payments and invoices must be available in the corporate office within 24 hours of the order shipping.
Manufacturing data
Manufacturing data and product quality data must be accessible for a five year period. In reality however, data older than 6 months is rarely accessed.
Sales data
National Retailers Sales Representatives must continue to be allowed to place orders via the nearest factory. In the event of a factory unable to fulfill the order, product inventory
at other factories should be checked and an e-mail order sent to the manager of the
factory that has the product in stock. The manager will then verify inventory and submit the order locally.
Sales Representatives should also be allowed to check the current commissions due to them.
National Retailers wants its sales representatives to be able to place orders on a Web site.
In the event of a salesperson attempts to place an order for a customer who has a balance over 60 days past due, an e-mail should be sent to the salesperson and the customer, informing them about order rejection.
Product data
Industry regulations require an audit trail for all components and parts that go into a doll
or action figure. The audit trail must be able to use the UPC number on the package to trace all the components and parts, who supplied the components and parts, and what
date the components and parts were shipped. Components and parts information must be entered at the time the product line is created and cannot be altered after the quality inspection. Attempts to modify components and parts information after the inspection
time must be logged.
Only product lines with an intact audit trail can be shipped. If an audit trail is not available, the product line must be destroyed. The product line application includes a
verification routine that checks a specific product line’s audit trail. The application makes use of structured error handling to react to a product line that must be destroyed.

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