All contents of the 1z0-070 Test Cost exam questions are masterpieces from experts who imparted essence of the exam into our 1z0-070 Test Cost study prep. So our high quality and high efficiency 1z0-070 Test Cost practice materials conciliate wide acceptance around the world. By incubating all useful content 1z0-070 Test Cost training engine get passing rate from former exam candidates of 98 which evince our accuracy rate and proficiency. Nowadays in this information-based world the definition of the talents mean that the personnel boost both the knowledge in 1z0-070 Test Cost area and the practical abilities now. So if you want to be the talent the society actually needs you must apply your knowledge into the practical working and passing the test 1z0-070 Test Cost certification can make you become the talent the society needs. Accompanied by tremendous and popular compliments around the world, to make your feel more comprehensible about the 1z0-070 Test Cost study prep, all necessary questions of knowledge concerned with the exam are included into our 1z0-070 Test Cost simulating exam.
1z0-070 Test Cost study material is suitable for all people.
Besides, our company's website purchase process holds security guarantee, so you needn’t be anxious about download and install our 1z0-070 - Oracle Exadata X5 Administration Test Cost exam questions. So a wise and diligent person should absorb more knowledge when they are still young. At present, our Certification 1z0-070 Exam Dumps study prep has gained wide popularity among different age groups.
From the customers’ point of view, our 1z0-070 Test Cost test question put all candidates’ demands as the top priority. We treasure every customer’ reliance and feedback to the optimal 1z0-070 Test Cost practice test. Considering all customers’ sincere requirements, 1z0-070 Test Cost test question persist in the principle of “Quality First and Clients Supreme” all along and promise to our candidates with plenty of high-quality products, considerate after-sale services as well as progressive management ideas.
Oracle 1z0-070 Test Cost - Our company has also being Customer First.
You will face plenty of options in your whole lives. Sometimes, you must decisively abandon some trivial things, and then you can harvest happiness and fortunes. Now, our 1z0-070 Test Cost guide materials just need to cost you less spare time, then you will acquire useful skills which may help you solve a lot of the difficulties in your job. Besides, our 1z0-070 Test Cost exam questions will help you pass the exam and get the certification for sure.
Wrong topic tend to be complex and no regularity, and the 1z0-070 Test Cost torrent prep can help the users to form a good logical structure of the wrong question, this database to each user in the simulation in the practice of all kinds of wrong topic all induction and collation, and the Oracle Exadata X5 Administration study question then to the next step in-depth analysis of the wrong topic, allowing users in which exist in the knowledge module, tell users of our 1z0-070 Test Cost exam question how to make up for their own knowledge loophole, summarizes the method to deal with such questions for, to prevent such mistakes from happening again.
1z0-070 PDF DEMO:
QUESTION NO: 1
You issued these commands to all Exadata Storage Servers in an X6 Exadata Database
Machine using dcli:
alter iormplan objective = low_latency
alter iormplan active
There are no database or category plans defined.
You are encountering disk I/O performance problems at certain times, which vary by day and week.
DSS and Batch workloads perform well some of the time.
Further investigation shows that at times, the workloads are all OLTP I/Os, at other times all batch
I/Os, and sometimes a bit of each.
You wish to have disk I/O managed so that performance will be optimized for all workloads.
Which statements would you issue to all Exadata Storage Servers to achieve this?
A. alter iormplan objective=auto
B. alter iormplan objective=high_throughput
C. alter iormplan objective=' '
D. alter iormplan objective=low_latency
E. alter iormplan objective=balanced
Answer: A
Explanation:
The supported IORM objectives are auto, low_latency, balanced, and high_throughput. The recommended objective option is auto which allows IORM to continuously monitor the workloads, and select the best mode based on the active workloads currently on the cells.
References:
http://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-iorm.htm
QUESTION NO: 2
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: 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
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: 5
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
ISC CISSP-KR - The reason of making the Omgzlook stand out in so many peers is that we have a lot of timely updated practice questions and answers which accurately and correctly hit the exam. For their varied advantages, our ISQI CTAL-TTA_Syll19_4.0 learning questions have covered almost all the interests and habits of varied customers groups. If you choose to download all of our providing exam practice questions and answers, Omgzlook dare 100% guarantee that you can pass Oracle certification Oracle 1z0-1123-24 exam disposably with a high score. Not only that you can pass the exam and gain the according SASInstitute IDS-G302 certification but also you can learn a lot of knowledage and skills on the subjest. ISACA CISA - If you choose Omgzlook, but don't pass the exam, we will 100% refund full of your cost to you.
Updated: May 28, 2022