IBM has released the updated WebSphere Application Server Network Deployment V7.0 Core Administration exam (000-377) and it now tests on these sections, with the weighting -- in order from highest to lowest -- as follows:

• Application assembly/deployment and cell configuration/resource allocation: 21 percent
• WebSphere Application Server security: 16 percent
• Maintenance, performance monitoring and tuning: 14 percent
• Workload management, scalability, high-availability failover: 14 percent
• Architecture: 13 percent
• Problem determination: 13 percent
• Installation/configuration of WebSphere Application Server: 9 percent

There are 56 questions on the exam (all multiple-choice) and you must correctly answer 58 percent of it in 90 minutes to pass. The exams are administered through Prometric testing centers. You can get more info here.