Cisco per CCNA dice questo:
CCNA certifications are valid for three years. To recertify, pass ONE of the following before the certification expiration date:
* Pass the current ICND2 exam, or
* Pass the current CCNA exam, or
* Pass any current CCNA Concentration exam (wireless, or security, or voice, or SP Ops), or
* Pass any current 642-XXX Professional level exam, or
* Pass any current Cisco Specialist exam (excluding Sales Specialist exams or MeetingPlace Specialist exams or Implementing Cisco Telepresence Installations [ITI] exams), or
* Pass any current CCIE Written Exam, or
* Pass the current CCDE Written Exam OR current CCDE Practical Exam, or
* Pass the Cisco Certified Architect (CCAr) interview AND the CCAr board review to extend lower certifications
e per il CCNA Voice:
CCNA Voice certifications are valid for three years. To recertify, pass a CCNA Concentration exam (wireless, security, voice), or pass any 642 - XXX professional level or Cisco Specialist exam (excluding Sales Specialist exams), or pass a current CCIE or CCDE written exam.
quindi ogni volta che passi uno dei 3 esami del CCNP automaticamente verrà aggiornata la validità sia del CCNA che del CCNA Voice
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