If you purchase 1z1-070 Free exam questions and review it as required, you will be bound to successfully pass the exam. And if you still don't believe what we are saying, you can log on our platform right now and get a trial version of 1z1-070 Free study engine for free to experience the magic of it. Of course, if you encounter any problems during free trialing, feel free to contact us and we will help you to solve all problems on the 1z1-070 Free practice engine. 1z1-070 Free soft test simulator is popular by many people since it can be applied in nearly all electronic products. If you download and install on the personal computer first time, and then copy to your USB flash disk. The 1z1-070 Free prep guide adopt diversified such as text, images, graphics memory method, have to distinguish the markup to learn information, through comparing different color font, as well as the entire logical framework architecture, let users on the premise of grasping the overall layout, better clues to the formation of targeted long-term memory, and through the cycle of practice, let the knowledge more deeply printed in my mind.
Oracle Exadata 1z1-070 Choosing our products is choosing success.
Oracle Exadata 1z1-070 Free - Oracle Exadata X5 Administration There is a succession of anecdotes, and there are specialized courses. You can totally trust our 1z1-070 Reliable Test Collection Sheet practice test because all questions are created based on the requirements of the certification center. Latest 1z1-070 Reliable Test Collection Sheet test questions are verified and tested several times by our colleagues to ensure the high pass rate of our 1z1-070 Reliable Test Collection Sheet study guide.
Unlike other 1z1-070 Free study materials, there is only one version and it is not easy to carry. Our 1z1-070 Free exam questions mainly have three versions which are PDF, Software and APP online, and for their different advantafes, you can learn anywhere at any time. And the prices of our 1z1-070 Free training engine are reasonable for even students to afford and according to the version that you want to buy.
Oracle 1z1-070 Free - How diligent they are!
With 1z1-070 Free practice materials, you don't need to spend a lot of time and effort on reviewing and preparing. For everyone, time is precious. Office workers and mothers are very busy at work and home; students may have studies or other things. Using 1z1-070 Free guide questions, you only need to spend a small amount of time to master the core key knowledge, pass the 1z1-070 Free exam, and get a certificate.
Once it is time to submit your exercises, the system of the 1z1-070 Free preparation exam will automatically finish your operation. After a several time, you will get used to finish your test on time.
1z1-070 PDF DEMO:
QUESTION NO: 1
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: 2
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: 3
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: 4
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
QUESTION NO: 5
You plan to migrate a database supporting both DSS and OLTP workloads to your new X5
Database Machine.
The workloads contain many complex aggregating functions and expensive joins on large partitioned tables in the DSS workload and indexed access for OLTP workloads.
Which three benefits accrue as a result of this migration?
A. Superior flash cache compression technique
B. Superior compression capability designed specifically for archival data
C. Superior compression capability designed specifically for OLTP workloads
D. Cell offload processing for indexed-organized table access
E. Superior compression capability designed specifically for data warehouse tables
F. Columnar storage capability for data in row major data blocks that is held in flash cache
Answer: B,C,E
Explanation:
There are 6 different kinds of Table Data Compression methods:
Hence Databricks Databricks-Certified-Data-Engineer-Associate dumps are a special feast for all the exam takers and sure to bring them not only Databricks Databricks-Certified-Data-Engineer-Associate exam success but also maximum score. We sincerely hope that you can pay more attention to our ISTQB ISTQB-CTFL-KR study questions. You just need to spend about twenty to thirty hours before taking the real CompTIA CAS-005 exam. ACAMS CAMS7-KR - To avoid being washed out by the artificial intelligence, we must keep absorbing various new knowledge. Without voluminous content to remember, our Salesforce Advanced-Administrator practice materials contain what you need to know and what the exam want to test, So our Salesforce Advanced-Administrator real exam far transcend others in market.
Updated: May 28, 2022