The EMC E20-661 exam focuses on assessing the candidate's ability to install, configure, and troubleshoot EMC networked storage solutions, with an emphasis on NAS systems. It is intended for IT professionals who work with EMC storage technologies.

The EMC E20-661 exam, also known as Networked Storage-NAS Installation and Troubleshooting Exam, is designed to validate the knowledge and skills of professionals in the installation, configuration, and troubleshooting of EMC networked storage solutions, specifically focusing on NAS (Network Attached Storage).

The number of questions asked in the EMC E20-661 exam typically ranges from 60 to 70.

The passing score for the EMC E20-661 exam is generally around 63% to 70%, but it can vary slightly depending on the version of the exam.

The competency level required for the EMC E20-661 exam is intermediate to advanced, as it assesses practical knowledge and skills in networked storage and NAS systems.

The question format of the EMC E20-661 exam includes multiple-choice questions, drag-and-drop questions, and scenario-based questions.

You can take the EMC E20-661 exam through Pearson VUE testing centers or through online proctoring, depending on your preference and availability.

The EMC E20-661 exam is offered in English.

The cost of the EMC E20-661 exam is approximately $200 USD, but this can vary by location and currency.

The target audience for the EMC E20-661 exam includes IT professionals, storage administrators, and network engineers who work with EMC networked storage solutions and NAS systems.

The average salary of an EMC E20-661 certified professional can vary widely depending on the region and level of experience, but it typically ranges from $80,000 to $120,000 USD per year.

The testing providers for the EMC E20-661 exam are Pearson VUE and online proctoring services.

The recommended experience for the EMC E20-661 exam includes hands-on experience with EMC networked storage solutions and NAS systems, as well as a solid understanding of storage networking concepts.

There are no formal prerequisites for the EMC E20-661 exam, but it is recommended that candidates have relevant experience and knowledge in networked storage and NAS systems.

The expected retirement date of the EMC E20-661 exam depends on the release of new technologies and updates from EMC. It is advisable to check the official EMC website for the most current information.

The roadmap/track of the EMC E20-661 exam typically involves progressing from foundational knowledge in networked storage to more advanced topics in NAS installation, configuration, and troubleshooting.

The EMC E20-661 exam covers topics such as NAS architecture, installation procedures, configuration settings, troubleshooting techniques, and best practices for EMC networked storage solutions.

Sample questions for the EMC E20-661 exam can be found on the official EMC website or through various exam preparation resources and study guides.

The difficulty level of the EMC E20-661 exam is considered to be moderate to high, requiring a good understanding of networked storage and NAS systems, as well as practical experience in the field.