What is your reason for wanting to be certified with 1z0-070 Exam Book? I believe you must want to get more opportunities. As long as you use 1z0-070 Exam Book learning materials and get a 1z0-070 Exam Book certificate, you will certainly be appreciated by the leaders. As you can imagine that you can get a promotion sooner or latter, not only on the salary but also on the position, so what are you waiting for? Just come and buy our 1z0-070 Exam Book study braindumps. If you are an IT staff, it will be your indispensable training materials. Do not take your future betting on tomorrow. The system of 1z0-070 Exam Book test guide will keep track of your learning progress in the whole course.
At present, Oracle 1z0-070 Exam Book exam is very popular.
Oracle Exadata 1z0-070 Exam Book - Oracle Exadata X5 Administration Meanwhile, our exam materials are demonstrably high effective to help you get the essence of the knowledge which was convoluted. As long as you master these questions and answers, you will sail through the exam you want to attend. Whatever exam you choose to take, Omgzlook training dumps will be very helpful to you.
We want to provide our customers with different versions of 1z0-070 Exam Book test guides to suit their needs in order to learn more efficiently. Our 1z0-070 Exam Book qualification test can help you make full use of the time and resources to absorb knowledge and information. If you are accustomed to using the printed version of the material, we have a PDF version of the 1z0-070 Exam Book study tool for you to download and print, so that you can view the learning materials as long as you have free time.
Oracle 1z0-070 Exam Book - This is doubly true for IT field.
Due to the shortage of useful practice materials or being scanty for them, many candidates may choose the bad quality exam materials, but more and more candidates can choose our 1z0-070 Exam Book study materials. Actually, some practice materials are shooting the breeze about their effectiveness, but our 1z0-070 Exam Book training quiz are real high quality practice materials with passing rate up to 98 to 100 percent. And you will be amazed to find that our 1z0-070 Exam Book exam questions are exactly the same ones in the real exam.
Omgzlook pdf real questions and answers can prevent you from wasting lots of time and efforts on preparing for the exam and can help you sail through you exam with ease and high efficiency. But even you fail the exam, we assure we will give you FULL REFUND.
1z0-070 PDF DEMO:
QUESTION NO: 1
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: 2
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: 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
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: 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:
Cisco 700-695 - The most important part is that all contents were being sifted with diligent attention. There will be one version right for you and help you quickly pass the IBM C1000-180 with ease, so that you can obtain the most authoritative international recognition on your IT ability. With our customer-oriented Fortinet NSE6_FSR-7.3 actual question, you can be one of the former exam candidates with passing rate up to 98 to 100 percent. The latest Microsoft MS-700 exam review materials offered by our Omgzlook will help you complete the Microsoft MS-700 exam preparation in short time. In the past few years, Scrum PSK-I exam torrent hasreceived the trust of a large number of students and also helped a large number of students pass the exam smoothly.
Updated: May 28, 2022