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NEW QUESTION: 1
General Overview
You are the Senior Database Administrator (DBA) for a software development company named Leafield
Solutions. The company develops software applications custom designed to meet customer requirements.
Requirements Leafield Solutions has been asked by a customer to develop a web-based Enterprise
Resource Planning and Management application. The new application will eventually replace a desktop
application that the customer is currently using. The current application will remain in use while the users
are trained to use the new webbased application.
You need to design the SQL Server and database infrastructure for the web-based application.
Databases
You plan to implement databases named Customers, Sales, Products, Current_Inventory, and
TempReporting.
The Sales database contains a table named OrderTotals and a table named SalesInfo.
A stored procedure named SPUpdateSalesInfo reads data in the OrderTotals table and modifies data in
the SalesInfo table.
The stored procedure then reads data in the OrderTotals table a second time and makes further changes
to the information in the SalesInfo table.
The Current_Inventory database contains a large table named Inv_Current. The Inv_Current table has a
clustered index for the primary key and a nonclustered index. The primary key column uses the identity
property.
The data in the Inv_Current table is over 120GB in size. The tables in the Current_Inventory database are
accessed by multiple queries in the Sales database.
Another table in the Current_Inventory database contains a self-join with an unlimited number of
hierarchies. This table is modified by a stored procedure named SPUpdate2.
An external application named ExternalApp1 will periodically query the Current_Inventory database to
generate statistical information. The TempReporting database contains a single table named GenInfo.
A stored procedure named SPUPdateGenInfo combines data from multiple databases and generates
millions of rows of data in the GenInfo table.
The GenInfo table is used for reports.
When the information in GenInfo is generated, a reporting process reads data from the Inv_Current table
and queries information in the GenInfo table based on that data.
The GenInfo table is deleted after the reporting process completes. The Products database contains tables
named ProductNames and ProductTypes.
Current System
The current desktop application uses data stored in a SQL Server 2005 database named
DesABCopAppDB. This database will remain online and data from the Current_Inventory database will be
copied to it as soon as data is changed in the Current_Inventory database.
SQL Servers
A new SQL Server 2012 instance will be deployed to host the databases for the new system. The
databases will be hosted on a Storage Area Network (SAN) that provides highly available storage.
Design Requirements
Your SQL Server infrastructure and database design must meet the following requirements:
Confidential information in the Current_ Inventory database that is accessed by ExternalApp1 must be
securely stored.
Direct access to database tables by developers or applications must be denied.
The account used to generate reports must have restrictions on the hours when it is allowed to make a
connection.
Deadlocks must be analyzed with the use of Deadlock Graphs.
In the event of a SQL Server failure, the databases must remain available.
Software licensing and database storage costs must be minimized.
Development effort must be minimized.
The Tempdb databases must be monitored for insufficient free space.
Failed authentication requests must be logged.
Every time a new row is added to the ProductTypes table in the Products database, a user defined
function that validates the row must be called before the row is added to the table.
When SPUpdateSalesInfo queries data in the OrderTotals table the first time, the same rows must be
returned along with any newly added rows when SPUpdateSalesInfo queries data in the OrderTotals
table the second time.
You need to recommend a solution to meet the design requirement of logging all failed authentication
requests.
What should you recommend?
A. Object Access Auditing
B. Login Auditing.
C. C2 Audit Mode
D. Logon Triggers.
Answer: B
NEW QUESTION: 2
You are modifying an existing Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The WPF application uses a wizard to capture data and insert the data into a database. The database includes one parent table and many child tables.
Inserting captured data in the database locks many database tables and delays application access.
You have the following requirements:
Reduce delays when saving data.
Ensure that other application users are not blocked from reading data.
Ensure that captured data is available only after all child tables are updated.
You need to recommend an approach for inserting captured data into the database.
What should you recommend?
A. Insert all captured data in a single transaction when the user completes the wizard.
B. Insert captured data by using a single transaction as the user completes each wizard page.
C. Insert captured data by using optimistic concurrency as the user completes each wizard page.
D. Insert captured data by using non-transactional operations when the user completes the wizard.
Answer: A
Explanation:
A. one transaction in the end => Yes
B. Works but to many transactions => otut
C. non-transactional operations: users should not blocked from reading data => out
D. optimistic concurrency for each page-- we need one operation for all pages =>out Pessimistic: In Pessimistic concurrency control a transaction blocks data access operations of othertransactions upon conflicts, and conflicts arenon-materializeduntil blocking is removed. This toensure that operations that may violate serializability (and in practice also recoverability) do not occur. Optimistic: In Optimistic concurrency control data access operations of other transactions are notblocked upon conflicts, and conflicts are immediatelymaterialized. When the transaction reachesthereadystate, i.e., itsrunningstate has been completed, possible serializability (and in practice alsorecoverability) violation by the transaction's operations (relatively to other running transactions) is checked: If violation has occurred, the transaction is typicallyaborted(sometimes abortinganother transaction tohandle serializability violation is preferred). Otherwise it iscommitted.
NEW QUESTION: 3
레거시 응용 프로그램은 iSCSI를 사용하여 로컬 시스템과 상호 작용해야 합니다. 팀은 AWS에서 모든 새로운 스토리지를 프로비저닝 할수 있는 안정적인 스토리지 솔루션을 설계해야 합니다.
레거시 애플리케이션 요구 사항을 충족시키는 스토리지 솔루션은 무엇입니까?
A. 레거시 애플리케이션 저장소가 Amazon S3에 데이터를 쓰기위한 저장 모드의 AWS Storage Gateway
B. 레거시 애플리케이션 저장소가 Amazon S3에 데이터를 쓰기위한 캐시 모드의 AWS Storage Gateway
C. 애플리케이션을 다시 설계 할 수있을 때까지 기존 애플리케이션을 위한 AWS Snowball 스토리지
D. 파일 게이트웨이 서비스를 사용하여 레거시 응용 프로그램 서버에 로컬로 마운트 된 Amazon S3 볼륨
Answer: A
NEW QUESTION: 4
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply to that question.
You have a database for a banking system. The database has two tables named tblDepositAcct and tblLoanAcct that store deposit and loan accounts, respectively. Both tables contain the following columns:
You need to run a query to find the total number of customers who have both deposit and loan accounts.
Which Transact-SQL statement should you run?
A：
B：
C：
D：
E：
F：
G：
H：
A. Option H
B. Option A
C. Option D
D. Option G
E. Option E
F. Option F
G. Option C
H. Option B
Answer: B
Explanation:
Explanation/Reference:
Explanation:
The SQL INTERSECT operator is used to return the results of 2 or more SELECT statements. However, it only returns the rows selected by all queries or data sets. If a record exists in one query and not in the other, it will be omitted from the INTERSECT results.
References: https://www.techonthenet.com/sql/intersect.php
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