對於 Oracle的1z1-070試題考試認證每個考生都很迷茫。每個人都有自己不用的想法，不過總結的都是考試困難之類的，Oracle的1z1-070試題考試是比較難的一次考試認證，我相信大家都是耳目有染的，不過只要大家相信Goldmile-Infobiz，這一切將不是問題，Goldmile-Infobiz Oracle的1z1-070試題考試培訓資料是每個考生的必備品，它是我們Goldmile-Infobiz為考生們量身訂做的，有了它絕對100%通過考試認證，如果你不相信，你進我們網站看一看你就知道，看了嚇一跳，每天購買率是最高的，你也別錯過，趕緊加入購物車吧。 成千上萬的IT考生通過我們的產品成功通過考試，該1z1-070試題考古題的品質已被廣大考生檢驗。我們的Oracle 1z1-070試題題庫根據實際考試的動態變化而更新，以確保1z1-070試題考古題覆蓋率始終最高于99%。 但是這並不代表不能獲得高分輕鬆通過考試。
Oracle Exadata 1z1-070 現在世界上有很多 IT人才，IT行業競爭激烈。
Goldmile-Infobiz的專家團隊利用自己的經驗和知識不斷努力地研究，終於開發出了關於Oracle 1z1-070 - Oracle Exadata X5 Administration試題 認證考試的針對性的培訓資料，可以有效的幫助你為Oracle 1z1-070 - Oracle Exadata X5 Administration試題 認證考試做好充分的準備。 不需要大量的時間和金錢，僅需30個小時左右的特殊培訓，你就能輕鬆通過你的第一次參加的Oracle 1z1-070 考古題分享 認證考試。Goldmile-Infobiz能為你提供與真實的考試題目有緊密相似性的考試練習題。
每個需要通過IT考試認證的考生都知道，這次的認證關係著他們人生的重大轉變，我們Goldmile-Infobiz提供的考試認證培訓資料是用超低的價格和高品質的擬真試題和答案來奉獻給廣大考生，我們的產品還具備成本效益，並提供了一年的免費更新期，我們認證培訓資料都是現成的。我們網站是答案轉儲的領先供應商，我們有你們需要的最新最準確的考試認證培訓資料，也就是答案和考題。
Oracle的Oracle 1z1-070試題考試認證將會從遙不可及變得綽手可得。
Goldmile-Infobiz的考古題有两种版本，即PDF版和软件版。這樣可以給你最大的方便。PDF版方便你的使用，你可以下載並且將考古題列印出來以供隨時學習。軟體版類比了真實的考試，可以讓你切身感受到考試的氣氛。这样在考试时你就可以轻松自如地应对了。
如果你因為準備Oracle的1z1-070試題考試而感到很累的話，那麼你千萬不能錯過Goldmile-Infobiz的1z1-070試題資料。因為這是個高效率的準備考試的工具。
1z1-070 PDF DEMO:
QUESTION NO: 1
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: 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
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
QUESTION NO: 4
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: 5
You plan to migrate a database supporting both DSS and OLTP workloads to your new X5
Database Machine.
The workloads contain many complex aggregating functions and expensive joins on large partitioned tables in the DSS workload and indexed access for OLTP workloads.
Which three benefits accrue as a result of this migration?
A. Superior flash cache compression technique
B. Superior compression capability designed specifically for archival data
C. Superior compression capability designed specifically for OLTP workloads
D. Cell offload processing for indexed-organized table access
E. Superior compression capability designed specifically for data warehouse tables
F. Columnar storage capability for data in row major data blocks that is held in flash cache
Answer: B,C,E
Explanation:
There are 6 different kinds of Table Data Compression methods:
Goldmile-Infobiz的CheckPoint 156-561考古題是經過眾多考生檢驗過的資料，可以保證有很高的成功率。 ACAMS CAMS7-CN - Goldmile-Infobiz是一個你可以完全相信的網站。 這樣可以節約考生的時間和金錢，大多數的考生都選擇這樣的方式來獲得Broadcom 250-589認證，并節省了很多的時間和努力。 Juniper JN0-460 - 那麼，為了通過這個考試你是怎麼進行準備的呢？是死命地學習與考試相關的知識呢，還是使用了高效率的學習資料呢？ 獲得Cisco 300-535認證已經成為大多數IT員工獲得更好工作的一種選擇，然而，許多考生一直在努力嘗試卻失敗了。
Updated: May 28, 2022