CCDA Done!!! Certified on Friday. :)
Now moving to CCDP....
Only one exam needed for CCNP certified professional to get CCDP certificate.
ARCH 642-874
Only one book for preparations from Cisco Press:
Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874) (3rd Edition) (Foundation Learning Guides)
Will start from it...