The Oracle 1z0-074 exam is a certification exam aimed at experienced Oracle DBAs who wish to upgrade their credentials to the latest version, Oracle Database 12c R2. The exam covers a wide range of topics related to the new features and enhancements in Oracle Database 12c R2.

The Oracle 1z0-074 exam, also known as 'Upgrade Oracle DBA 11g or 12c to 12c R2', is designed for database administrators who want to upgrade their existing Oracle Database 11g or 12c certifications to Oracle Database 12c R2. The exam tests the candidate's knowledge and skills in various areas of Oracle Database 12c R2, including new features, enhancements, and best practices.

The Oracle 1z0-074 exam typically consists of 75 questions.

The passing score for the Oracle 1z0-074 exam is 60%.

The competency level required for the Oracle 1z0-074 exam is advanced. Candidates should have a strong understanding of Oracle Database 11g or 12c and experience with database administration tasks.

The question format of the Oracle 1z0-074 exam includes multiple-choice questions.

The Oracle 1z0-074 exam can be taken online or at a Pearson VUE testing center.

The Oracle 1z0-074 exam is offered in English.

The cost of the Oracle 1z0-074 exam is $245 USD.

The target audience for the Oracle 1z0-074 exam is experienced Oracle Database Administrators who are currently certified in Oracle Database 11g or 12c and want to upgrade to Oracle Database 12c R2.

The average salary of an Oracle 1z0-074 certified professional varies by region and experience, but it generally ranges from $90,000 to $130,000 per year.

The testing providers for the Oracle 1z0-074 exam are Pearson VUE.

The recommended experience for the Oracle 1z0-074 exam includes hands-on experience with Oracle Database 11g or 12c and familiarity with the new features and enhancements in Oracle Database 12c R2.

The prerequisites for the Oracle 1z0-074 exam include having an active Oracle Database 11g or 12c certification.

As of now, there is no announced retirement date for the Oracle 1z0-074 exam.

The Oracle 1z0-074 exam is part of the Oracle Database 12c R2 certification track. Successfully passing this exam upgrades your existing Oracle Database 11g or 12c certification to Oracle Database 12c R2.

The Oracle 1z0-074 exam covers topics such as upgrading Oracle databases, new features in Oracle Database 12c R2, performance tuning, backup and recovery enhancements, and security improvements.

Sample questions for the Oracle 1z0-074 exam can be found on the official Oracle Certification website or through various Oracle certification preparation resources.

The difficulty level of the Oracle 1z0-074 exam is considered to be advanced, as it requires a thorough understanding of Oracle Database 11g or 12c and familiarity with the new features and enhancements in Oracle Database 12c R2.