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NEW QUESTION: 1
Which of the following is an input device?
A. Speakers
B. A scanner
C. A plotter
D. A monitor
Answer: B

NEW QUESTION: 2
Which purpose of the AAA accounting feature is true when you use TACACS+ authentication?
A. It verifies the user identity
B. It prompts users to change their passwords when they expire
C. It saves a timestamped record of user activity
D. It controls the activities that the user is permitted to perform
Answer: D

NEW QUESTION: 3
Which is a best practice for High Availability (HA) in an Exadata environment?
A. When a standby database is in place, DB_BLOCK_CHECKING is not required and thus not recommended.
B. Due to the different architecture that Exadata has with storage servers, compared to regular Storage Area Network, DB_LOST_WRITE_PROTECT need not be set.
C. Oracle Exadata Storage Server Software HARD checks operate transparently after enabling DB_BLOCK_CHECKSUM on a database.
D. Stretched RAC is the best alternative for Exadata that combines both HA and DR into one.
E. Checksums performed on the Exadata Storage Server ensure logical consistency of block content.
Answer: C
Explanation:
Explanation/Reference:
Explanation:
Exadata storage cells include Oracle Hardware Assisted Resilient Data (HARD) to provide a unique level of validation for Oracle block data structures such as data block address, checksum.
and magic numbers prior to allowing a write to physical disks. HARD validation with Exadata is automatic (setting DB_BLOCK_CHECKSUM is required to enable checksum validation). The HARD checks transparently handle all cases including Oracle ASM disk rebalance operations and disk failures.
Incorrect:
Not A:The checksum is used to validate that a block is not physically corrupt, detecting corruptions caused by underlying disks, storage systems, or I/O systems. Checksums do not ensure logical consistency of the block contents.
Not B: MAA recommends that you set DB_BLOCK_CHECKING=MEDIUM or FULL on the physical standby as a minimum practice to prevent the standby from various logical block corruptions.
Not D: The recommendation is:
On the primary database: DB_LOST_WRITE_PROTECT=TYPICAL (default TYPICAL on Exadata) On the Data Guard Physical Standby Database: DB_LOST_WRITE_PROTECT=TYPICAL
Not E: Protection from a broad range of, but not all disasters
While not a full disaster recovery (DR) solution, an Extended Distance
Oracle RAC or Oracle RAC One Node deployment will provide protection from a broad range of disasters.
For a full DR protection Oracle recommends deploying an Oracle RAC together with a local and a remote Oracle Data Guard setup as described in the Maximum Availability Architecture (MAA).

NEW QUESTION: 4
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
Topic 10, Fabrikam, Inc
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:.