It is an important process that filling in the correct mail address in order that it is easier for us to send our 1z1-070 Reliable Exam Collection Sheet study guide to you after purchase, therefore, this personal message is particularly important. We are selling virtual 1z1-070 Reliable Exam Collection Sheet learning dumps, and the order of our 1z1-070 Reliable Exam Collection Sheet training materials will be immediately automatically sent to each purchaser's mailbox according to our system. It is very fast and convenient to have our 1z1-070 Reliable Exam Collection Sheet practice questions. Our experts generalize the knowledge of the exam into our 1z1-070 Reliable Exam Collection Sheet exam materials showing in three versions. PDF version of 1z1-070 Reliable Exam Collection Sheet study questions - support customers' printing request, and allow you to have a print and practice in papers. After years of development practice, our 1z1-070 Reliable Exam Collection Sheet test torrent is absolutely the best.
Oracle Exadata 1z1-070 It is all about efficiency and accuracy.
During the exam, you would be familiar with the questions, which you have practiced in our 1z1-070 - Oracle Exadata X5 Administration Reliable Exam Collection Sheet question dumps. And our website has already became a famous brand in the market because of our reliable 1z1-070 Reliable Exam Dumps Materials exam questions. Different from all other bad quality practice materials that cheat you into spending much money on them, our 1z1-070 Reliable Exam Dumps Materials exam materials are the accumulation of professional knowledge worthy practicing and remembering.
We will provide high quality assurance of 1z1-070 Reliable Exam Collection Sheet exam questions for our customers with dedication to ensure that we can develop a friendly and sustainable relationship. First of all, we have security and safety guarantee, which mean that you cannot be afraid of virus intrusion and information leakage since we have data protection acts, even though you end up studying 1z1-070 Reliable Exam Collection Sheet test guide of our company, we will absolutely delete your personal information and never against ethic code to sell your message to the third parties. Secondly, our 1z1-070 Reliable Exam Collection Sheet exam questions will spare no effort to perfect after-sales services.
Oracle 1z1-070 Reliable Exam Collection Sheet - Goldmile-Infobiz has a huge IT industry elite team.
Generally speaking, 1z1-070 Reliable Exam Collection Sheet certification has become one of the most authoritative voices speaking to us today. Let us make our life easier by learning to choose the proper 1z1-070 Reliable Exam Collection Sheet test answers, pass the exam, obtain the certification, and be the master of your own life, not its salve. There are so many of them that they make you believe that their product is what you are looking for. With one type of 1z1-070 Reliable Exam Collection Sheet exam study materials are often shown one after another so that you are confused as to which product you should choose.
Now many IT professionals agree that Oracle certification 1z1-070 Reliable Exam Collection Sheet exam certificate is a stepping stone to the peak of the IT industry. Oracle certification 1z1-070 Reliable Exam Collection Sheet exam is an exam concerned by lots of IT professionals.
1z1-070 PDF DEMO:
QUESTION NO: 1
Which two statements are true about data paths used during RMAN backup and restore operations when media management servers use InfiniBand to connect to an X5 Database Machine?
A. During backups, data blocks are read by cellsrv and sent directly to the media manager to be written to media.
B. During backups, data blocks are read by cellsrv and sent to a database server, which sends the blocks to the media manager to be written to media.
C. During backups, data blocks are always read from Smart Flash Cache by cellsrv.
D. During restores, data blocks read from the media are sent to a database server that sends the blocks to cellsrv to be written.
E. During restores, data blocks read from the media are sent directly to cellsrv to be written.
Answer: A,E
Explanation:
The fastest database backup is achieved via InfiniBand.
RMAN does not back up directly to tape. However, it will integrate with media management software such as Oracle Secure Backup and utilize their capabilities to manage tape libraries.
Exadata Database Machine: The Database Machine contains the databases that need to be backed up. Oracle RMAN is the only mechanism to back up the databases that utilize Exadata Storage Servers as the storage. RMAN processes run on the database servers and interact with the Oracle Secure
Backup (OSB) agent, which further interacts with the media management software and enables
RMAN to communicate with the tape library.
References:
http://apprize.info/data/oracle_4/6.html
QUESTION NO: 2
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: 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
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: 5
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
SAP C-BCBAI-2509 study engine is so amazing. Microsoft AB-100 - Goldmile-Infobiz's expert team is a large team composed of senior IT professionals. Goldmile-Infobiz is a wonderful study platform that contains our hearty wish for you to pass the exam by our CIPS L5M5 exam materials. IT professionals who gain Oracle Amazon AWS-Certified-Developer-Associate-KR authentication certificate must have a higher salary than the ones who do not have the certificate and their position rising space is also very big, who will have a widely career development prospects in the IT industry in. Our commitment of helping you to pass Snowflake SnowPro-Core-KR exam will never change.
Updated: May 28, 2022