Novell’s exam 050-664 (course 575), “Novell eDirectory Design and Implementation” is one of the core requirements for the Certified Novell Engineer (CNE) 6 certification. This exam is designed for mid to advanced-level network administrators who design and implement business solutions using Novell eDirectory trees and related components. There is no specific prerequisite for this exam but it would help if the candidate held a Certified Novell Administrator (CNA) 6 designation.

This exam is priced at $125, $55.50, or $27.50 depending on the region in which it's taken.  Most North American and European and some Asia Pacific countries fall under the highest price tier.
The exam may be taken from Pearson Vue or Thomson Prometric.

The passing score is 608. This exam is an adaptive test, consisting of 58 questions, and has a duration of 75 minutes.

The topics covered by this exam include:

• Understanding the importance of a careful NDS design
• Knowing the roles needed for an NDS design
• Tasks and functions involved in an NDS design cycle
• An effective naming standards document
• Rules and key issues of designing the upper and lower layer of an NDS tree
• NDS partitioning and replication and the merging of NDS trees
• Time synchronization
• Users’ accessibility needs analysis, accessibility guidelines, and administrative strategies documents
• Implementing a user environment plan