We esteem your variant choices so all these versions of 1z1-070 Self Paced Training study materials are made for your individual preference and inclination. Please get to know our 1z1-070 Self Paced Training study materials as follows. We know that tenet from the bottom of our heart, so all parts of service are made due to your interests. As a matter of fact, we receive thousands of the warm feedbacks to thank us for helping them pass the exam. Our 1z1-070 Self Paced Training training guide has been well known in the market. Some candidates may considerate whether the 1z1-070 Self Paced Training exam guide is profession, but it can be sure that the contents of our study materials are compiled by industry experts after them refining the contents of textbooks, they have good knowledge of exam.
Oracle Exadata 1z1-070 So there is no matter of course.
Oracle Exadata 1z1-070 Self Paced Training - Oracle Exadata X5 Administration If you are not working hard, you will lose a lot of opportunities! In traditional views, Valid 1z1-070 Exam Tutorial practice materials need you to spare a large amount of time on them to accumulate the useful knowledge may appearing in the real exam. However, our Valid 1z1-070 Exam Tutorial learning questions are not doing that way.
Combined with your specific situation and the characteristics of our 1z1-070 Self Paced Training exam questions, our professional services will recommend the most suitable version of 1z1-070 Self Paced Training study materials for you. We introduce a free trial version of the 1z1-070 Self Paced Training learning guide because we want users to see our sincerity. 1z1-070 Self Paced Training exam prep sincerely hopes that you can achieve your goals and realize your dreams.
Oracle 1z1-070 Self Paced Training - In short, we live in an age full of challenges.
We are amenable to offer help by introducing our 1z1-070 Self Paced Training real exam materials and they can help you pass the Oracle Exadata X5 Administration practice exam efficiently. All knowledge is based on the real exam by the help of experts. By compiling the most important points of questions into our 1z1-070 Self Paced Training guide prep our experts also amplify some difficult and important points. There is no doubt they are clear-cut and easy to understand to fulfill your any confusion about the exam. Our Oracle Exadata X5 Administration exam question is applicable to all kinds of exam candidates who eager to pass the exam. Last but not the least, they help our company develop brand image as well as help a great deal of exam candidates pass the exam with passing rate over 98 percent of our 1z1-070 Self Paced Training real exam materials.
We believe that you must have paid more attention to the pass rate of the Oracle Exadata X5 Administration exam questions. If you focus on the study materials from our company, you will find that the pass rate of our products is higher than other study materials in the market, yes, we have a 99% pass rate, which means if you take our the 1z1-070 Self Paced Training study dump into consideration, it is very possible for you to pass your exam and get the related certification.
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
You issued these commands to all Exadata Storage Servers in an X6 Exadata Database
Machine using dcli:
alter iormplan objective = low_latency
alter iormplan active
There are no database or category plans defined.
You are encountering disk I/O performance problems at certain times, which vary by day and week.
DSS and Batch workloads perform well some of the time.
Further investigation shows that at times, the workloads are all OLTP I/Os, at other times all batch
I/Os, and sometimes a bit of each.
You wish to have disk I/O managed so that performance will be optimized for all workloads.
Which statements would you issue to all Exadata Storage Servers to achieve this?
A. alter iormplan objective=auto
B. alter iormplan objective=high_throughput
C. alter iormplan objective=' '
D. alter iormplan objective=low_latency
E. alter iormplan objective=balanced
Answer: A
Explanation:
The supported IORM objectives are auto, low_latency, balanced, and high_throughput. The recommended objective option is auto which allows IORM to continuously monitor the workloads, and select the best mode based on the active workloads currently on the cells.
References:
http://docs.oracle.com/cd/E80920_01/SAGUG/exadata-storage-server-iorm.htm
QUESTION NO: 4
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: 5
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
Lpi 010-160 - Because our study material is prepared strictly according to the exam outline by industry experts, whose purpose is to help students pass the exam smoothly. Respect the user's choice, will not impose the user must purchase the HP HPE0-J83 practice materials. Microsoft DP-600 - Our experts have many years’ experience in this particular line of business, together with meticulous and professional attitude towards jobs. Palo Alto Networks XSIAM-Engineer - One of the great advantages of buying our product is that can help you master the core knowledge in the shortest time. Microsoft MS-900-KR - As well as our after-sales services.
Updated: May 28, 2022