Even if you have acquired the knowledge about the 1z1-070 Download actual test, the worries still exist. You do not know what questions you may be faced with when attending the real test. Now, you need the 1z1-070 Download practice dumps which can simulate the actual test to help you. After printing, you not only can bring the 1z1-070 Download study guide with you wherever you go since it doesn't take a place, but also can make notes on the paper at your liberty, which may help you to understand the contents of our 1z1-070 Download learning prep better. Do not wait and hesitate any longer, your time is precious! Now you can learn 1z1-070 Download skills and theory at your own pace and anywhere you want with top of the 1z1-070 Download braindumps, you will find it's just like a pice a cake to pass 1z1-070 Downloadexam.
Oracle Exadata 1z1-070 Try to immerse yourself in new experience.
Our 1z1-070 - Oracle Exadata X5 Administration Download guide prep is priced reasonably with additional benefits valuable for your reference. Every 1z1-070 New Dumps Sheet exam questions are going through rigid quality check before appearing on our online stores. So you do not need to worry about trivial things and concentrate on going over our 1z1-070 New Dumps Sheet exam preparation.
We claim that you can be ready to attend your exam after studying with our 1z1-070 Downloadstudy guide for 20 to 30 hours because we have been professional on this career for years. We can’t deny that the pursuit of success can encourage us to make greater progress. Just as exactly, to obtain the certification of 1z1-070 Download exam braindumps, you will do your best to pass the according exam without giving up.
Oracle 1z1-070 Download - And we will let you down.
Our 1z1-070 Download study materials selected the most professional team to ensure that the quality of the 1z1-070 Download learning guide is absolutely leading in the industry, and it has a perfect service system. The focus and seriousness of our study materials gives it a 99% pass rate. Using our products, you can get everything you want, including your most important pass rate. 1z1-070 Download actual exam is really a good helper on your dream road.
To understand our 1z1-070 Download learning questions in detail, just come and try! Our 1z1-070 Download real quiz boosts 3 versions: the PDF, the Softwate and the APP online which will satisfy our customers by their varied functions to make you learn comprehensively and efficiently.
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:
EMC D-VXR-DS-00 - Perhaps our research data will give you some help. CompTIA 220-1101 - Many people want to be the competent people which can excel in the job in some area and be skillful in applying the knowledge to the practical working in some industry. PCA CSDB - The acquisition of Oracle qualification certificates can better meet the needs of users' career development, so as to bring more promotion space for users. Saving the precious time users already so, also makes the Microsoft AZ-204-KR quiz torrent look more rich, powerful strengthened the practicability of the products, to meet the needs of more users, to make the Microsoft AZ-204-KR test prep stand out in many similar products. SAP C_SIGPM_2403 - With our users all over the world, you really should believe in the choices of so many people.
Updated: May 28, 2022