IT업계에 종사하고 계신 분은Oracle 1z1-070인기시험 시험을 패스하여 자격증을 취득하려고 검색하다 저희 블로그를 보게 되시고 저희 사이트까지 방문하게 될것입니다. 방문하는 순간 Oracle 1z1-070인기시험시험에 대한 두려움이 사라질것입니다. 완벽한 구매후 서비스까지 겸비하고 있어 자격증을 취득하는데서의 믿음직스러운 동반자로 되어드릴게요. Goldmile-Infobiz Oracle인증1z1-070인기시험시험덤프 구매전 구매사이트에서 무료샘플을 다운받아 PDF버전 덤프내용을 우선 체험해보실수 있습니다. 무료샘플을 보시면Goldmile-Infobiz Oracle인증1z1-070인기시험시험대비자료에 믿음이 갈것입니다.고객님의 이익을 보장해드리기 위하여Goldmile-Infobiz는 시험불합격시 덤프비용전액환불을 무조건 약속합니다. Oracle 1z1-070인기시험시험을 가장 쉽게 합격하는 방법이 Goldmile-Infobiz의Oracle 1z1-070인기시험 덤프를 마스터한느것입니다.
Oracle Exadata 1z1-070 여러분은 IT업계에서 또 한층 업그레이드 될것입니다.
Oracle인증 1z1-070 - Oracle Exadata X5 Administration인기시험시험은 IT인증자격증중 가장 인기있는 자격증을 취득하는 필수시험 과목입니다. Pass4Tes선택은 가장 적은 투자로 많은 이익을 가져올 수 있죠, Pass4Tes에서 제공하는Oracle인증1z1-070 시험난이도시험덤프로 시험패스는 문제없스니다. Goldmile-Infobiz는 전문적으로 it인증시험관련문제와 답을 만들어내는 제작팀이 있으며, Pass4Tes 이미지 또한 업계에서도 이름이 있답니다
Goldmile-Infobiz는 엘리트한 전문가들의 끊임없는 연구와 자신만의 노하우로 Oracle 1z1-070인기시험덤프자료를 만들어 냄으로 여러분의 꿈을 이루어드립니다. 기존의 Oracle 1z1-070인기시험시험문제를 분석하여 만들어낸 Oracle 1z1-070인기시험덤프의 문제와 답은 실제시험의 문제와 답과 아주 비슷합니다. Oracle 1z1-070인기시험덤프는 합격보장해드리는 고품질 덤프입니다.
Oracle 1z1-070인기시험 - 빨리 Goldmile-Infobiz 덤프를 장바구니에 넣으시죠.
Goldmile-Infobiz에는 IT인증시험의 최신Oracle 1z1-070인기시험학습가이드가 있습니다. Goldmile-Infobiz 는 여러분들이Oracle 1z1-070인기시험시험에서 패스하도록 도와드립니다. Oracle 1z1-070인기시험시험준비시간이 충분하지 않은 분은 덤프로 철저한 시험대비해보세요. 문제도 많지 않고 깔끔하게 문제와 답만으로 되어있어 가장 빠른 시간내에Oracle 1z1-070인기시험시험합격할수 있습니다.
우리는 우리의Oracle 1z1-070인기시험인증시험덤프로 시험패스를 보장합니다. Goldmile-Infobiz의Oracle 1z1-070인기시험시험자료의 문제와 답이 실제시험의 문제와 답과 아주 비슷합니다.
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 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: 3
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: 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
Huawei H19-338-ENU - 우리Goldmile-Infobiz에는 아주 엘리트한 전문가들로 구성된 팀입니다. HP HPE7-A03 - Goldmile-Infobiz는 많은 분들이 IT인증시험을 응시하여 성공하도록 도와주는 사이트입니다. Goldmile-Infobiz에서 제공하는 제품들은 품질이 아주 좋으며 또 업뎃속도도 아주 빠릅니다 만약 우리가제공하는Oracle ACAMS CAMS-CN인증시험관련 덤프를 구매하신다면Oracle ACAMS CAMS-CN시험은 손쉽게 성공적으로 패스하실 수 있습니다. Goldmile-Infobiz의 Oracle인증 SAP C-S4CPB-2508덤프는 시장에서 가장 최신버전으로서 시험패스를 보장해드립니다. CompTIA PT0-003 - 그러면 100프로 자신감으로 응시하셔서 한번에 안전하게 패스하실 수 있습니다.
Updated: May 28, 2022