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Vendor: Microsoft
Exam Code: 70-469
Exam Name: Recertification for MCSE: Data Platform
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QUESTION 91
You need to recommend a solution that addresses the file storage requirements.
What should you include in the recommendation?
A. FileStream
B. FileTable
C. The varbinary data type
D. The image data type
Answer: B
Explanation:
* Scenario: File Storage Requirements The ERP database stores scanned documents that are larger than 2 MB. These files must only be accessed through the ERP application.
File access must have the best possible read and write performance.
* FileTables remove a significant barrier to the use of SQL Server for the storage and management of unstructured data that is currently residing as files on file servers. Enterprises can move this data from file servers into FileTables to take advantage of integrated administration and services provided by SQL Server. At the same time, they can maintain Windows application compatibility for their existing Windows applications that see this data as files in the file system.
QUESTION 92
You need to recommend a solution that addresses the installation issues.
What should you include in the recommendation?
A. Windows logins
B. Server roles
C. Contained users
D. Database roles
Answer: C
Explanation:
* Scenario: Installation Issues
The current version of the ERP application requires that several SQL Server logins be set up to function correctly. Most customers set up the ERP application in multiple locations and must create logins multiple times.
* Creating contained users enables the user to connect directly to the contained database.
This is a very significant feature in high availability and disaster recovery scenarios such as in an AlwaysOn solution. If the users are contained users, in case of failover, people would be able to connect to the secondary without creating logins on the instance hosting the secondary.
This provides an immediate benefit.
QUESTION 93
You need to recommend a solution that addresses the security requirement.
What should you recommend?
A. Revoke user permissions on the tables.
Create stored procedures that manipulate data.
Grant the users the EXECUTE permission on the stored procedures.
B. Grant the users the SELECT permission on the tables.
Create views that retrieve data from the tables.
Grant the users the SELECT permission on the views.
C. Deny the users SELECT permission on the tables.
Create views that retrieve data from the tables.
Grant the users the SELECT permission on the views.
D. Deny the users the SELECT permission on the tables.
Create stored procedures that manipulate data.
Grant the users the EXECUTE permission on the stored procedures.
Answer: C
Explanation:
* Security Requirements
You must provide users with the ability to execute functions within the ERP application, without having direct access to the underlying tables.
QUESTION 94
You need to recommend changes to the ERP application to resolve the search issue.
The solution must minimize the impact on other queries generated from the ERP application.
What should you recommend changing?
A. The collation of the Products table
B. The index on the ProductName column
C. The collation of the ProductName column
D. The data type of the ProductName column
Answer: C
Explanation:
http://technet.microsoft.com/en-us/library/aa214408(v=sql.80).aspx
QUESTION 95
You need to recommend a solution that addresses the concurrency requirement.
What should you recommend?
A. Break each stored procedure into two separate procedures, one that changes Sales.Table1 and
one that changes Sales.Table2.
B. Make calls to Sales.Proc1 and Sales.Proc2 synchronously.
C. Call the stored procedures in a Distributed Transaction Coordinator (DTC) transaction.
D. Modify the stored procedures to update tables in the same order for all of the stored procedures.
Answer: D
Explanation:
* Concurrency Requirements
You must reduce the likelihood of deadlocks occurring when Sales.Proc1 and Sales.Proc2 execute.
QUESTION 96
You need to recommend a solution that addresses the backup issue.
The solution must minimize the amount of development effort.
What should you include in the recommendation?
A. Indexed views
B. Filegroups
C. Table partitioning
D. Indexes
Answer: B
Explanation:
* Backup Issues
Customers who have large amounts of historical purchase order data report that backup time is unacceptable.
* For very large databases (and by that, I mean, at least 500gb, but more like 5-10tb or more), it can become too expensive to regularly run a straight full backup . So, where needed, you can choose to backup smaller pieces of the database by choosing to back up one of the files or file groups that make up a database.
Using Filegroups and Files to Store Data
Case Study 9 – Fabrikam, Inc (Question 97 – Question 106)
Background
Corporate Information
Fabrikam, Inc. is a retailer that sells electronics products on the Internet. The company has a headquarters site and one satellite sales office.
You have been hired as the database administrator, and the company wants you to change the architecture of the Fabrikam ecommerce site to optimize performance and reduce downtime while keeping capital expenditures to a minimum. To help with the solution, Fabrikam has decided to use cloud resources as well as on-premise servers.
Physical Locations
All of the corporate executives, product managers, and support staff are stationed at the headquarters office. Half of the sales force works at this location.
There is also a satellite sales office. The other half of the sales force works at the satellite office in order to have sales people closer to clients in that area. Only sales people work at the satellite location.
Problem Statement
To be successful, Fabrikam needs a website that is fast and has a high degree of system uptime. The current system operates on a single server and the company is not happy with the single point of failure this presents. The current nightly backups have been failing due to insufficient space on the available drives and manual drive cleanup often needing to happen to get past the errors. Additional space will not be made available for backups on the HQ or satellite servers. During your investigation, you discover that the sales force reports are causing significant contention.
Configuration
Windows Logins
The network administrators have set up Windows groups to make it easier to manage security. Users may belong to more than one group depending on their role.
The groups have been set up as shown in the following table:
Server Configuration
The IT department has configured two physical servers with Microsoft Windows Server 2012 R2 and SQL Server 2014 Enterprise Edition and one Windows Azure Server. There are two tiers of storage available for use by database files only a fast tier and a slower tier. Currently the data and log files are stored on the fast tier of storage only. If a possible use case exists, management would like to utilize the slower tier storage for data files.
The servers are configured as shown in the following table:
Database
Currently all information is stored in a single database called ProdDB, created with the following script:
The Product table is in the Production schema owned by the ProductionStaff Windows group. It is the main table in the system so access to information in the Product table should be as fast as possible.
The columns in the Product table are defined as shown in the following table:
The SalesOrderDetail table holds the details about each sale. It is in the Sales schema owned by the SalesStaff Windows group.
This table is constantly being updated, inserted into, and read.
The columns in the SalesOrderDetail table are defined as shown in the following table:
Database Issues
The current database does not perform well. Additionally, a recent disk problem caused the system to go down, resulting in lost sales revenue. In reviewing the current system, you found that there are no automated maintenance procedures. The database is severely fragmented, and everyone has read and write access.
Requirements
Database
The database should be configured to maximize uptime and to ensure that very little data is lost in the event of a server failure. To help with performance, the database needs to be modified so that it can support in-memory data, specifically for the Product table, which the CIO has indicated should be a memory-optimized table. The auto-update statistics option is set off on this database.
Only product managers are allowed to add products or to make changes to the name, description, price, cost, and supplier. The changes are made in an internal database and pushed to the Product table in ProdDB during system maintenance time. Product managers and others working at the headquarters location also should be able to generate reports that include supplier and cost information.
Customer data access
Customers access the company’s website to order products, so they must be able to read product information such asname, description, and price from the Product table. When customers place orders, stored procedures calledby the website update product quantity- on-hand values. This means the product table is constantly updated at randomtimes.
Customer support data access
Customer support representatives need to be able to view and not update or change product information. Management does not want the customer support representatives to be able to see the product cost or any supplier information.
Sales force data access
Sales people at both the headquarters office and the satellite office must generate reports that read from the Product and SalesOrderDetail tables. No updates or inserts are ever made by sales people. These reports are run at random times and there can be no reporting downtime to refresh the data set except during the monthly maintenance window. The reports that run from the satellite office are process intensive queries with large data sets. Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.
Historical Data
The system should keep historical information about customers who access the site so that sales people can see how frequently customers log in and how long they stay on the site. The information should be stored in a table called Customer Access. Supporting this requirement should have minimal impact on production website performance.
Backups
The recovery strategy for Fabrikam needs to include the ability to do point in time restores and minimize the risk of data loss by performing transaction log backups every 15 minutes.
Database Maintenance
The company has defined a maintenance window every month when the server can be unavailable. Any maintenance functions that require exclusive access should be accomplished during that window.
Project milestones completed
Revoked all existing read and write access to the database, leaving the schema ownership in place.
Configured an Azure storage container secured with the storage account name MyStorageAccount with the primary access key StorageAccountKey on the cloud file server.
SQL Server 2014 has been configured on the satellite server and is ready for use. On each database server, the fast storage has been assigned to drive letter F:, and the slow storage has been assigned to drive letter D:.
QUESTION 97
Drag and Drop Questions
You need to distribute functionality across the three servers.
Which function should you assign to each server? To answer, drag the appropriate functions to the correct servers. Each function may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
QUESTION 98
You need to write code that will allow the sales force to retrieve data for their reports with the least amount of effort.
Which code should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Explanation:
* Scenario:
/ During your investigation, you discover that the sales force reports are causing significant contention.
/ Sales force data access
Sales people at both the headquarters office and the satellite office must generate reports that read from the Product and SalesOrderDetail tables. No updates or inserts are ever made by sales people. These reports are run at random times and there can be no reporting downtime to refresh the data set except during the monthly maintenance window. The reports that run from the satellite office are process intensive queries with large data sets. Regardless of which office runs a sales force report, the SalesOrderDetail table should only return valid, committed order data; any orders not yet committed should be ignored.
QUESTION 99
You are designing your maintenance plan.
Which command should you use only during the monthly maintenance window?
A. DBCC INDEXDEFRAG (ProdDB, SalesOrderDetail, SODIndex)
B. ALTER INDEX SODIndex ON SalesOrderDetail REORGANIZE
C. ALTER INDEX SODIndex ON SalesOrderDetail REBUILD
D. ALTER INDEX SODIndex ON SalesOrderDetail REBUILD WITH (ONLINE * ON)
Answer: D
Explanation:
* Scenario: Database Issues
The current database does not perform well. Additionally, a recent disk problem caused the system to go down, resulting in lost sales revenue. In reviewing the current system, you found that there are no automated maintenance procedures. The database is severely fragmented, and everyone has read and write access.
* After the degree of fragmentation is known, use the following table to determine the best method to correct the fragmentation.
avg_fragmentation_in_percent value
/ > 5% and < = 30%
then use
ALTER INDEX REORGANIZE
/ > 30%
then use
ALTER INDEX REBUILD WITH (ONLINE = ON)
ALTER INDEX (Transact-SQL)
QUESTION 100
You need to implement a backup strategy to support the requirements.
Which two actions should you perform? Each correct answer presents part of the solution.
Choose two.
A. Create a credential called MyCredential on SQL Server by using a Windows domain account
and password.
B. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO DISK…
C. Create a share on your Windows Azure site by using your Windows Azure storage account
information, and grant permission to the SQL Server service login.
D. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO URL …
WTTH CREDENTIAL=N’MyCredential’
E. Create a share on the hot standby site and grant permission to the SQL Server service login.
F. Create a credential called MyCredential on SQL Server, using MyStorageAccount for the storage
account name and StorageAccountKey for the access key.
G. Schedule a full backup by using the command BACKUP DATABASE ProdDB TO SHARE …
WITH CREDENTIAL=N’ MyCredential’
Answer: CD
Explanation:
* Scenario: The current nightly backups have been failing due to insufficient space on the available drives and manual drive cleanup often needing to happen to get past the errors. Additional space will not be made available for backups on the HQ or satellite servers.
* Need to store files in the cloud.
* Manage your backups to Windows Azure: Using the same methods used to backup to DISK and TAPE, you can now back up to Windows Azure storage by Specifying URL as the backup destination. You can use this feature to manually backup or configure your own backup strategy like you would for a local st
orage or other off-site options. This feature is also referred to as SQL Server Backup to URL.
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