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The difference between PDF and Soft:

1. PDF: It is printable, readable and copyable. The requirements of reading: the computers should be installed Acrobat Reader.

2. Soft: Simulate the real test, which can make the candidates be familiar with the real exam environment.

Exam 642-999 is the official exam code of CCNP Data Center Routing and Switching Written of CCNP Data Center certification. If you need to get CCNP Data Center certification, you may need to take other related exams. You can visit CCNP Data Center certification subject to get more details, and you can find all CCNP Data Center certification related exams there.

This site does not provide any exam information. If candidates need to ask the exam information, you can visit VUE or Prometric testing center to get the details.