More importantly, the online version of 1z1-070 Questions Vce study practice dump from our company can run in an off-line state, it means that if you choose the online version, you can use the 1z1-070 Questions Vce exam questions when you are in an off-line state. In a word, there are many advantages about the online version of the 1z1-070 Questions Vce prep guide from our company. The experts and professors of our company have designed the three different versions of the 1z1-070 Questions Vce prep guide, including the PDF version, the online version and the software version. So IT professionals to enhance their knowledge through Oracle 1z1-070 Questions Vce exam certification. But pass this test will not be easy. Our latest 1z1-070 Questions Vce exam dump is comprehensive, covering all the learning content you need to pass the qualifying exams.
Oracle Exadata 1z1-070 This is a site of great help to you.
Oracle Exadata 1z1-070 Questions Vce - Oracle Exadata X5 Administration Many of our users have told us that they are really busy. We can make you have a financial windfall. Goldmile-Infobiz's Oracle Detailed 1z1-070 Study Plan exam training materials is virtually risk-free for you at the time of purchase.
On the contrary, it might be time-consuming and tired to prepare for the 1z1-070 Questions Vce exam without a specialist study material. So it's would be the best decision to choose our 1z1-070 Questions Vce study tool as your learning partner. Our 1z1-070 Questions Vce study tool also gives numerous candidates a better perspective on the real exam.
Oracle 1z1-070 Questions Vce - Just add it to your cart.
However, the appearance of our 1z1-070 Questions Vce certification materials will solve your question and change your impression of 1z1-070 Questions Vce certification exam. You will find it is easy to pass the 1z1-070 Questions Vce certification exam. What’s more, contrary to most of the exam preparation materials available online, the 1z1-070 Questions Vce certification materials of 1z1-070 Questions Vce can be obtained at a reasonable price, and its quality and advantages exceed all similar products of our competitors. All our customers have successfully passed the exam. 1z1-070 Questions Vce certification materials will enable you to obtain the actual certification within days, and will be the best choice for your time and money.
In addition, you can set the time for each test practice of 1z1-070 Questions Vce simulate test. The intelligence and customizable 1z1-070 Questions Vce training material will help you get the 1z1-070 Questions Vce certification successfully.
1z1-070 PDF DEMO:
QUESTION NO: 1
Which two statements are true about data paths used during RMAN backup and restore operations when media management servers use InfiniBand to connect to an X5 Database Machine?
A. During backups, data blocks are read by cellsrv and sent directly to the media manager to be written to media.
B. During backups, data blocks are read by cellsrv and sent to a database server, which sends the blocks to the media manager to be written to media.
C. During backups, data blocks are always read from Smart Flash Cache by cellsrv.
D. During restores, data blocks read from the media are sent to a database server that sends the blocks to cellsrv to be written.
E. During restores, data blocks read from the media are sent directly to cellsrv to be written.
Answer: A,E
Explanation:
The fastest database backup is achieved via InfiniBand.
RMAN does not back up directly to tape. However, it will integrate with media management software such as Oracle Secure Backup and utilize their capabilities to manage tape libraries.
Exadata Database Machine: The Database Machine contains the databases that need to be backed up. Oracle RMAN is the only mechanism to back up the databases that utilize Exadata Storage Servers as the storage. RMAN processes run on the database servers and interact with the Oracle Secure
Backup (OSB) agent, which further interacts with the media management software and enables
RMAN to communicate with the tape library.
References:
http://apprize.info/data/oracle_4/6.html
QUESTION NO: 2
Which two completely prevent a Smart Scan from occurring?
A. performing a minimum or maximum function on an indexed column
B. querying a table containing a JSON column
C. referencing more than 255 columns form an OLTP compressed table in a query
D. performing a Fast Full Index scan on a reverse key index
E. querying a table containing many migrated rows
F. querying a table containing many chained rows
Answer: C,E
Explanation:
B: Migrated Rows is a special case of chained rows. Migrated rows still affect performance, as they do in conventional storage situations, but with the additional overhead of reducing the beneficial effects of "Smart Scan" in addition to increasing the number of I/Os E: Smart Scans - broadly speaking and ignoring edge cases - can only transport a maximum of 254 columns from a single (non-HCC) segment.
Requesting more columns will simply disable Smart Scans for that segment.
An interesting limitation to Exadata Smart Scans - if more than 254 columns from a table (not HCC compressed, more on that in moment) need to be projected, Smart Scans for that particular segment will be disabled and Exadata will fall back to conventional I/O. This means that the number of columns in the projection clause can make a significant difference to performance, since only Smart
Scans allow taking advantage of offloading and particularly avoiding I/O via Storage Indexes.
QUESTION NO: 3
Which three statements are true about bulk data loading capabilities in an X5 Database
Machine environment?
A. DBFS may be used if Exadata-based shared storage is required to stage data before bulk loading into a database.
B. DBFS must use the DBFS_DG diskgroup for any DBFS store.
C. DBFS must be used to bulk load data into a production database on the Database Machine.
D. DBFS must be used to have a POSIX-compliant shared storage solution that is accessible from the database servers on a Database Machine.
E. ACFS may use the DBFS_DG diskgroup to contain the ADVM volume file.
F. ACFS may be used if Exadata-based shared storage is required to stage data before bulk loading into a database.
G. ACFS must be used to have a POSIX-compliant shared storage solution that is accessible from the database servers on a Database Machine.
Answer: A,C,D
Explanation:
External tables on DBFS file-systems provide the probably the most high-performance way to bulk load data into your database.
Bulk Data Loading
Describe the various options for staging data to be bulk loading into Database Machine Configure the
Database File System (DBFS) feature for staging input data files Use external tables based on input data files stored in DBFS to perform high-performance data loads
QUESTION NO: 4
Which three statements are true about Recovery Manager (RMAN) daily differential incremental backup strategies on an X5 Database Machine for a database having 25% or more of its blocks modified each day and which has an 8 k block size?
A. For level-0 backups, Block Change Tracking (BCT) is most beneficial when more than 25 percent of the blocks have changed since the last backup.
B. cellsrv returns only blocks that have changed since the last backup.
C. Enabling Block Change Tracking (BCT) on the database can result in a reduction of physical I/O on the cells during incremental backups.
D. For level-1 backups, Block Change Tracking (BCT) is most beneficial when more than 25 percent of the blocks have changed since the last backup.
E. Fast incremental backups when 50% or more of the blocks have changed since the last backup, will run as slowly as normal incremental backup.
F. Enabling Block Change Tracking (BCT) on the database can result in reduced consumption of storage network bandwidth.
Answer: B,C,E
Explanation:
A: Fast Incremental backups is possible with Block change tracking, which is initially introduced from version 10.2 onwards, by this tool it's very useful to reduce the RMAN incremental backup duration.
If the changes are something around 20% then in this situation BCT helps a lot.
C: Exadata Storage Server offload capability combined with RMAN block change tracking will efficiently perform large I/Os at the storage-tier level, returning only individual changed blocks for incremental backups and increasing the backup performance of the system.
Note: Level 1 backup: A level 1 backup includes only those blocks that have been changed since the
"parent" backup was taken. Remember a parent backup may be either a level 0 or a level 1 backup.
Block change tracking allows indeed the highest benefit for databases where the changes are not so high, Level 0 backup: A level 0 incremental backup is physically identical to a full backup and it includes every data block in the file except empty blocks. The only difference is that the level 0 backup is recorded as an incremental backup in the RMAN repository, so it can be used as the parent for a level 1 backup.
References:
http://www.dba-oracle.com/t_rman_backup_types.htm
http://www.oracle.com/technetwork/database/availability/maa-tech-wp-sundbm-backup-11202-
183503.pdf
https://www.toadworld.com/platforms/oracle/w/wiki/11124.fast-incremental-backups-active-data- guard
QUESTION NO: 5
You plan to migrate an existing production database supporting online transaction processing
(OLTP) workloads to an X6 Exadata Database Machine.
The database currently supports an application requiring fast response times to satisfy stringent business requirements, and most of the application queries use indexed access to tables.
For which two cases would you consider dropping indexes that are not used for constraints after the migration to assure that Smart Scans occur?
A. if Smart Scan performs better that any type of index scan on the corresponding table.
B. if Smart only occur instead of index range scans on the corresponding table.
C. if Smart only occur instead of index skip scans on the corresponding table.
D. if Smart Scans performs equally well to any type of index scan on the corresponding table.
Answer: A,B
Snowflake SnowPro-Core-KR - We believe our perfect service will make you feel comfortable when you are preparing for your exam. The Microsoft AZ-305 pass review written by our IT professionals is the best solution for passing the technical and complex certification exam. In this hustling society, our SAP C-S4CPR-2508 practice materials are highly beneficial existence which can not only help you master effective knowledge but pass the exam effectively. Microsoft SC-300-KR - We provide 24/7 customer service for all of you, please feel free to send us any questions about Oracle exam test through email or online chat, and we will always try our best to keeping our customer satisfied. Now we have free demo of the Salesforce ADM-201 study materials exactly according to the three packages on the website for you to download before you pay for the Salesforce ADM-201 practice engine, and the free demos are a small part of the questions and answers.
Updated: May 28, 2022