Recently, 1z0-070 Reliable Test Pdf exam certification, attaching more attention from more and more people in IT industry, has become an important standard to balance someone's IT capability. Many IT candidates are confused and wonder how to prepare for 1z0-070 Reliable Test Pdf exam, but now you are lucky if you read this article because you have found the best method to prepare for the exam from this article. You will ensure to get 1z0-070 Reliable Test Pdf exam certification after using our 1z0-070 Reliable Test Pdf exam software developed by our powerful Omgzlook IT team. A lot of candidates who choose to use the Omgzlook's product have passed IT certification exams for only one time. And from the feedback of them, helps from Omgzlook are proved to be effective. To resolve your doubts, we assure you that if you regrettably fail the 1z0-070 Reliable Test Pdf exam, we will full refund all the cost you buy our study materials.
Oracle Exadata 1z0-070 We provide free PDF demo for each exam.
Omgzlook Oracle 1z0-070 - Oracle Exadata X5 Administration Reliable Test Pdf exam training materials is a reliable product. To pass the certification exam, you need to select right 1z0-070 Unlimited Exam Practice study guide and grasp the overall knowledge points of the real exam. The test questions from our 1z0-070 Unlimited Exam Practice dumps collection cover almost content of the exam requirement and the real exam.
Are you worried about how to passs the terrible Oracle 1z0-070 Reliable Test Pdf exam? Do not worry, With Omgzlook's Oracle 1z0-070 Reliable Test Pdf exam training materials in hand, any IT certification exam will become very easy. Omgzlook's Oracle 1z0-070 Reliable Test Pdf exam training materials is a pioneer in the Oracle 1z0-070 Reliable Test Pdf exam certification preparation.
Oracle 1z0-070 Reliable Test Pdf - Success is has method.
Our 1z0-070 Reliable Test Pdf real dumps has received popular acceptance worldwide with tens of thousands of regular exam candidates who trust our proficiency. Up to now, the passing rate is 98 to 100 percent. What made our 1z0-070 Reliable Test Pdf study guide so amazing? The answer that we only supply the latest and valid 1z0-070 Reliable Test Pdf exam braindumps for our customers and first-class after-sales services come after the first-class 1z0-070 Reliable Test Pdf learning engine. We're also widely praised by our perfect services.
With this certification you will not be eliminated, and you will be a raise. Some people say that to pass the Oracle 1z0-070 Reliable Test Pdf exam certification is tantamount to success.
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
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:
We regard the customer as king so we put a high emphasis on the trust of every users, therefore our security system can protect you both in payment of EMC D-PE-FN-23 guide braindumps and promise that your computer will not be infected during the process of payment on our EMC D-PE-FN-23 study materials. PECB ISO-IEC-27005-Risk-Manager - So, it can save much time for us. You can contact us at any time if you have any difficulties in the purchase or trial process of our Fortinet FCP_FAZ_AD-7.4 exam dumps. Omgzlook Oracle Huawei H19-433_V1.0 pdf dumps are the most credible. To ensure excellent score in the exam, EXIN VERISME braindumps are the real feast for all exam candidates.
Updated: May 28, 2022