QOS 642-642 ??

[mounir.mohamed]

Dear All,

ANybody can advice about which book is better for Qos Exam in CCIP path which one is vest Student Guide 2.0 or Cisco IP telephony Self-Study???

Thanks

[b.hsu]

The best book of Qos exam in the CCIP path is, Cisco QOS Exam Certification Guide (IP Telephony Self-Study), 2nd Edition by Michael Cavanaugh, Wendell Odom publishd by cisco press.