如果你想知道Goldmile-Infobiz的考古題是不是適合你，那麼先下載考古題的demo體驗一下吧。如果你想通過困難的1z1-070考古題認證考試，那麼在準備考試時不使用相關考試資料是絕對不行的。如果你想找到適合你自己的優秀的資料，那麼你最應該來的地方就是Goldmile-Infobiz。 如果你選擇了報名參加Oracle 1z1-070考古題 認證考試，你就應該馬上選擇一份好的學習資料或培訓課程來準備考試。因為Oracle 1z1-070考古題 是一個很難通過的認證考試，要想通過考試必須為考試做好充分的準備。 Goldmile-Infobiz確保廣大考生獲得最好和最新的Oracle 1z1-070考古題題庫學習資料，您可以隨時隨地的訪問我們網站尋找您需要的考古題。
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我們Goldmile-Infobiz配置提供給你最優質的Oracle的1z1-070 - Oracle Exadata X5 Administration考古題考試考古題及答案，將你一步一步帶向成功，我們Goldmile-Infobiz Oracle的1z1-070 - Oracle Exadata X5 Administration考古題考試認證資料絕對提供給你一個真實的考前準備，我們針對性很強，就如同為你量身定做一般，你一定會成為一個有實力的IT專家，我們Goldmile-Infobiz Oracle的1z1-070 - Oracle Exadata X5 Administration考古題考試認證資料將是最適合你也是你最需要的培訓資料，趕緊註冊我們Goldmile-Infobiz網站，相信你會有意外的收穫。 Oracle 1z1-070 權威認證認證考試是目前IT人士報名參加的考試中很受歡迎的一個認證考試。通過了Oracle 1z1-070 權威認證認證考試不僅能使你工作和生活帶來提升，而且還能鞏固你在IT 領域的地位。
我們Goldmile-Infobiz全面提供Oracle的1z1-070考古題考試認證資料，為你提示成功。我們的培訓資料是由專家帶來的最新的研究材料，你總是得到最新的研究材料，保證你的成功會與我們Goldmile-Infobiz同在，我們幫助你，你肯定從我們這裏得到最詳細最準確的考題及答案，我們培訓工具定期更新，不斷變化的考試目標。其實成功並不遠，你順著Goldmile-Infobiz往下走，就一定能走向你專屬的成功之路。
Oracle 1z1-070考古題 - 如果你考試失敗，我們將全額退款。
我們Goldmile-Infobiz不僅僅提供優質的產品給每位元考生，而且提供完善的售後服務給每位考生，如果你使用了我們的產品，我們將讓你享受一年免費的更新，並且在第一時間回饋給每位考生，讓你及時得到更新的最新的考試資料，以最大效益的服務給每位元考生。
Oracle的1z1-070考古題考試認證是當代眾多考試認證中最有價值的考試認證之一，在近幾十年裏，電腦科學教育已獲得了世界各地人們絕大多數的關注，它每天都是IT資訊技術領域的必要一部分，所以IT人士通過Oracle的1z1-070考古題考試認證來提高自己的知識，然後在各個領域突破。而Goldmile-Infobiz Oracle的1z1-070考古題考試認證試題及答案正是他們所需要的，因為想要通過這項測試並不容易的，選擇適當的捷徑只是為了保證成功，Goldmile-Infobiz正是為了你們的成功而存在的，選擇Goldmile-Infobiz等於選擇成功，我們Goldmile-Infobiz提供的試題及答案是Goldmile-Infobiz的IT精英通過研究與實踐而得到的，擁有了超過計畫10年的IT認證經驗。
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:
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Updated: May 28, 2022