Second, in terms of quality, we guarantee the authority of 1z1-070 Practice Questions study materials in many ways. You can just have a look at the pass rate of the 1z1-070 Practice Questions learning guide, it is high as 98% to 100% which is unique in the market. There is a lot of data to prove that our 1z1-070 Practice Questions practice guide has achieved great success. We will tailor services to different individuals and help them take part in their aimed exams after only 20-30 hours practice and training. Moreover, we have experts to update 1z1-070 Practice Questions quiz torrent in terms of theories and contents according to the changeable world on a daily basis, which can ensure that you are not falling behind of others by some slight knowledge gaps. We believe our 1z1-070 Practice Questions actual question will help you pass the qualification examination and get your qualification certificate faster and more efficiently.
Oracle Exadata 1z1-070 Boring life will wear down your passion for life.
The software of our 1z1-070 - Oracle Exadata X5 Administration Practice Questions test torrent provides the statistics report function and help the students find the weak links and deal with them. They never give up learning new things. Every time they try our new version of the Valid 1z1-070 Soft Simulations real exam, they will write down their feelings and guidance.
As far as we are concerned, the key to quick upward mobility lies in adapting your excellent personality to the style of the organization you are working in. Our 1z1-070 Practice Questions exam materials embrace much knowledge and provide relevant 1z1-070 Practice Questions exam bank available for your reference, which matches your learning habits and produces a rich harvest of the 1z1-070 Practice Questions exam knowledge. As long as you buy our 1z1-070 Practice Questions study guide, you will be benefited from it!
Oracle 1z1-070 Practice Questions - Moreover, we have Demos as freebies.
We are aware that the IT industry is a new industry. It is one of the chain to drive economic development. So its status can not be ignored. IT certification is one of the means of competition in the IT industry. Passed the certification exam you will get to a good rise. But pass the exam is not easy. It is recommended that using training tool to prepare for the exam. If you want to choose this certification training resources, Goldmile-Infobiz's Oracle 1z1-070 Practice Questions exam training materials will be the best choice. The success rate is 100%, and can ensure you pass the exam.
According to your need, you can choose the most suitable version of our Oracle Exadata X5 Administration guide torrent for yourself. The three different versions have different functions.
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
Oracle Huawei H21-287_V1.0 exam training materials are the learning materials that each candidate must have. Of course, a lot of problems such as soft test engine appeared some faults or abnormal stating run phenomenon of our CIPS L4M2 exam question, these problems cannot be addressed by simple language, we will service a secure remote assistance for users and help users immediate effectively solve the existing problems of our CIPS L4M2 torrent prep, thus greatly enhance the user experience, beneficial to protect the user's learning resources and use digital tools, let users in a safe and healthy environment to study CIPS L4M2 exam question. Do you have registered for Oracle SAP C-S4CPR-2508 exam? With the drawing near of the examination, I still lack of confidence to pass SAP C-S4CPR-2508 test. Microsoft MS-900 - They can not only achieve this, but ingeniously help you remember more content at the same time. Cisco 300-610 - What should we do? It doesn't matter.
Updated: May 28, 2022