Goldmile-Infobiz는 고객님께서 첫번째Oracle 1z1-070학습자료시험에서 패스할수 있도록 최선을 다하고 있습니다. 만일 어떤 이유로 인해 고객이 첫 번째 시도에서 실패를 한다면, Goldmile-Infobiz는 고객에게Oracle 1z1-070학습자료덤프비용 전액을 환불 해드립니다.환불보상은 다음의 필수적인 정보들을 전제로 합니다. 고객님의 시간을 조금이라도 절약해드리고 공을 적게 들여도 자격증 취득이 쉬워지도록 Goldmile-Infobiz의 IT전문가들은 최신 실러버스에 따라 몇년간의 노하우와 경험을 충분히 활용하여Oracle 1z1-070학습자료시험대비자료를 연구제작하였습니다. Oracle 1z1-070학습자료 덤프를 공부하여 시험에서 떨어지는 경우 덤프비용환불 혹은 다른 과목으로 교환하는중 한가지 서비스를 제공해드립니다. Oracle 1z1-070학습자료덤프로Oracle 1z1-070학습자료시험패스 GO GO GO !
Oracle Exadata 1z1-070 Goldmile-Infobiz를 선택은 여러분이 최고의 선택입니다.
저희가 알아본 데 의하면 많은it인사들이Oracle인증1z1-070 - Oracle Exadata X5 Administration학습자료시험을 위하여 많은 시간을 투자하고 잇다고 합니다.하지만 특별한 학습 반 혹은 인터넷강이 같은건 선택하지 않으셨습니다.때문에 패스는 아주 어렵습니다.보통은 한번에 패스하시는 분들이 적습니다.우리 Goldmile-Infobiz에서는 아주 믿을만한 학습가이드를 제공합니다.우리 Goldmile-Infobiz에는Oracle인증1z1-070 - Oracle Exadata X5 Administration학습자료테스트버전과Oracle인증1z1-070 - Oracle Exadata X5 Administration학습자료문제와 답 두 가지 버전이 있습니다.우리는 여러분의Oracle인증1z1-070 - Oracle Exadata X5 Administration학습자료시험을 위한 최고의 문제와 답 제공은 물론 여러분이 원하는 모든 it인증시험자료들을 선사할 수 있습니다. Goldmile-Infobiz덤프들은 모두 보장하는 덤프들이며 여러분은 과감히 Goldmile-Infobiz의 덤프를 장바구니에 넣으세요. Goldmile-Infobiz에서 여러분의 꿈을 이루어 드립니다.
많은 시간과 돈이 필요 없습니다. 30분이란 특별학습가이드로 여러분은Oracle 1z1-070학습자료인증시험을 한번에 통과할 수 있습니다, Goldmile-Infobiz에서Oracle 1z1-070학습자료시험자료의 문제와 답이 실제시험의 문제와 답과 아주 비슷한 덤프만 제공합니다.
Oracle 1z1-070학습자료 - Goldmile-Infobiz는 시험에서 불합격성적표를 받으시면 덤프비용을 환불하는 서
Oracle 인증1z1-070학습자료인증시험공부자료는Goldmile-Infobiz에서 제공해드리는Oracle 인증1z1-070학습자료덤프가 가장 좋은 선택입니다. Goldmile-Infobiz에서는 시험문제가 업데이트되면 덤프도 업데이트 진행하도록 최선을 다하여 업데이트서비스를 제공해드려 고객님께서소유하신 덤프가 시장에서 가장 최신버전덤프로 되도록 보장하여 시험을 맞이할수 있게 도와드립니다.
많은 사이트에서 Oracle인증 1z1-070학습자료시험대비덤프를 제공해드리는데Goldmile-Infobiz를 최강 추천합니다. Goldmile-Infobiz의Oracle인증 1z1-070학습자료덤프에는 실제시험문제의 기출문제와 예상문제가 수록되어있어 그 품질 하나 끝내줍니다.적중율 좋고 가격저렴한 고품질 덤프는Goldmile-Infobiz에 있습니다.
1z1-070 PDF DEMO:
QUESTION NO: 1
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: 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 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
Goldmile-Infobiz의 Oracle Databricks Associate-Developer-Apache-Spark-3.5덤프가 고객님의 시험패스테 조금이나마 도움이 되신다면 행복으로 느끼겠습니다. Goldmile-Infobiz 의 Oracle인증 Oracle N16302GC10시험에 도전장을 던지셨나요? 현황에 만족하지 않고 열심히 하는 모습에 박수를 보내드립니다. Oracle인증 EMC D-PSC-DS-01덤프에는Oracle인증 EMC D-PSC-DS-01시험문제의 기출문제와 예상문제가 수록되어있어 덤프에 있는 문제만 잘 공부하시면 시험은 가볍게 패스가능합니다. Goldmile-Infobiz의Oracle인증 IBM C1000-204덤프품질을 검증하려면 구매사이트의 무료샘플을 체험해보시면 됩니다.자격증을 많이 취득하여 멋진 IT전문가로 되세요. 저희 덤프만 공부하시면 시간도 절약하고 가격도 친근하며 시험준비로 인한 여러방면의 스트레스를 적게 받아Oracle인증 Google Security-Operations-Engineer시험패스가 한결 쉬워집니다.
Updated: May 28, 2022