Goldmile-Infobiz有專業的IT人員針對 Oracle 1z1-070真題材料 認證考試的考試練習題和答案做研究，他們能為你考試提供很有效的培訓工具和線上服務。如果你想購買Goldmile-Infobiz的產品，Goldmile-Infobiz會為你提供最新最好品質的，很詳細的培訓材料以及很準確的考試練習題和答案來為你參加Oracle 1z1-070真題材料認證考試做好充分的準備。放心用我們Goldmile-Infobiz產品提供的試題，選擇了Goldmile-Infobiz考試是可以100%能通過的。 通過很多已經使用Goldmile-Infobiz的些針對IT認證考試培訓資料的考生的回饋，證明了使用我們的Goldmile-Infobiz的產品通過It認證考試是很容易的。Goldmile-Infobiz最近研究出來了關於熱門的Oracle 1z1-070真題材料 認證考試的培訓方案，包括一些針對性的測試題，可以幫助你鞏固知識，讓你為Oracle 1z1-070真題材料 認證考試做好充分的準備。 Oracle 1z1-070真題材料認證考試是一個對IT專業人士的知識水準的檢驗的考試。
可以讓你一次就通過考試的優秀的1z1-070真題材料考試資料出現了。
如果你不想因為考試浪費太多的時間與精力，那麼Goldmile-Infobiz的1z1-070 - Oracle Exadata X5 Administration真題材料考古題無疑是你最好的選擇。 因為這個考古題包括了真實考試中的所有試題，所以只是這樣你也可以通過考試。選擇捷徑、使用技巧是為了更好地獲得成功。
Goldmile-Infobiz以它強大的考古題得到人們的認可，只要你選擇它作為你的考前復習工具，就會在1z1-070真題材料資格考試中有非常滿意的收穫，這也是大家有目共睹的。現在馬上去網站下載免費試用版本，你就會相信自己的選擇不會錯。Goldmile-Infobiz網站在通過1z1-070真題材料資格認證考試的考生中有著良好的口碑。
而且通過 Oracle Oracle 1z1-070真題材料 認證考試也不是很簡單的。
Goldmile-Infobiz是個可以為所有有關於IT認證考試提供資料的網站。Goldmile-Infobiz可以為你提供最好最新的考試資源。選擇Goldmile-Infobiz你可以安心的準備你的Oracle 1z1-070真題材料考試。我們的培訓才料可以保證你100%的通過Oracle 1z1-070真題材料認證考試，如果沒有通過我們將全額退款並且會迅速的更新考試練習題和答案，但這幾乎是不可能發生的。Goldmile-Infobiz可以為你通過Oracle 1z1-070真題材料的認證考試提供幫助，也可以為你以後的工作提供幫助。雖然有很多方法可以幫你達到你的這些目的，但是選擇Goldmile-Infobiz是你最明智的選擇，Goldmile-Infobiz可以使你花時間更短金錢更少並且更有把握地通過考試，而且我們還會為你提供一年的免費售後服務。
為了通過Oracle 1z1-070真題材料 認證考試，請選擇我們的Goldmile-Infobiz來取得好的成績。你不會後悔這樣做的，花很少的錢取得如此大的成果這是值得的。
1z1-070 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
如果你購買了我們提供的Oracle ACAMS CAMS7-KR認證考試相關的培訓資料，你是可以成功地通過Oracle ACAMS CAMS7-KR認證考試。 Oracle Scrum SAFe-Practitioner 認證證書對在IT行業中的你工作是很有幫助的，對你的職位和工資有很大提升，讓你的生活更有保障。 Goldmile-Infobiz能夠幫你100%通過Oracle NCARB Project-Planning-Design 認證考試，如果你不小心沒有通過Oracle NCARB Project-Planning-Design 認證考試，我們保證會全額退款。 Palo Alto Networks PSE-Cortex-Pro-24 - Goldmile-Infobiz提供的產品有很高的品質和可靠性。 Goldmile-Infobiz可以讓你不需要花費那麼多時間，金錢和精力，Goldmile-Infobiz會為你提供針對性訓練來準備Oracle Huawei H31-311_V2.5認證考試，僅需大約20個小時你就能通過考試。
Updated: May 28, 2022