Every version of 1z0-070 Reliable Exam Questions And Answers study materials that we provide to you has its own advantage: the PDF version has no equipment limited, which can be read anywhere; the online version can use on any electronic equipment there is network available; the software version can simulate the real 1z0-070 Reliable Exam Questions And Answers exam environment to let you have more real feeling to 1z0-070 Reliable Exam Questions And Answers real exam, besides the software version can be available installed on unlimited number devices. We highly recommend going through the 1z0-070 Reliable Exam Questions And Answers answers multiple times so you can assess your preparation for the 1z0-070 Reliable Exam Questions And Answers exam. Make sure that you are preparing yourself for the 1z0-070 Reliable Exam Questions And Answers test with our practice test software as it will help you get a clear idea of the real 1z0-070 Reliable Exam Questions And Answers exam scenario. Besides, you will enjoy the money refund policy in case of failure.
Our 1z0-070 Reliable Exam Questions And Answers free demo is available for all of you.
First of all, our 1z0-070 - Oracle Exadata X5 Administration Reliable Exam Questions And Answers study dumps cover all related tests about computers. To all customers who bought our 1z0-070 Latest Test Report pdf torrent, all can enjoy one-year free update. We will send you the latest version immediately once we have any updating about this test.
In order to provide the most effective 1z0-070 Reliable Exam Questions And Answers exam materials which cover all of the current events for our customers, a group of experts in our company always keep an close eye on the changes of the 1z0-070 Reliable Exam Questions And Answers exam, and then will compile all of the new key points as well as the latest types of exam questions into the new version of our 1z0-070 Reliable Exam Questions And Answers training engine. Do not lose the wonderful chance to advance with times. Just come and have a try on our 1z0-070 Reliable Exam Questions And Answers study questions!
Oracle 1z0-070 Reliable Exam Questions And Answers - You will surely benefit from your correct choice.
Do you often envy the colleagues around you can successfully move to a larger company to achieve the value of life? Are you often wondering why your classmate, who has scores similar to yours, can receive a large company offer after graduation and you are rejected? In fact, what you lack is not hard work nor luck, but 1z0-070 Reliable Exam Questions And Answers guide question. If you do not have extraordinary wisdom, do not want to spend too much time on learning, but want to reach the pinnacle of life through 1z0-070 Reliable Exam Questions And Answers exam, then you must have 1z0-070 Reliable Exam Questions And Answers question torrent.
When you are eager to pass the 1z0-070 Reliable Exam Questions And Answers real exam and need the most professional and high quality practice material, we are willing to offer help. Our 1z0-070 Reliable Exam Questions And Answers training prep has been on the top of the industry over 10 years with passing rate up to 98 to 100 percent.
1z0-070 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
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: 3
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: 4
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:
QUESTION NO: 5
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.
We compile Our SAP C-TS422-2023 preparation questions elaborately and provide the wonderful service to you thus you can get a good learning and preparation for the SAP C-TS422-2023 exam. Not only that, we also provide the best service and the best SAP C_S4EWM_2023 exam torrent to you and we can guarantee that the quality of our product is good. We are glad to help you get the certification with our best EMC D-UN-DY-23 study materials successfully. Not only because the outstanding content of Cisco 700-245 real dumps that produced by our professional expert but also for the reason that we have excellent vocational moral to improve our Cisco 700-245 learning materials quality. Microsoft SC-400 - According to free trial downloading, you will know which version is more suitable for you in advance and have a better user experience.
Updated: May 28, 2022