640-460 vs 640-461

Question - Would studying the 460 material (becuase I like the format...) overlap with 461?
Work bought this global knowledge 640-461 cbt course and it feels more like cisco marketing rather than training, but I have a 640-460 book and wasnt sure if it would be enough to cover 75% of 461
any suggestions
Work bought this global knowledge 640-461 cbt course and it feels more like cisco marketing rather than training, but I have a 640-460 book and wasnt sure if it would be enough to cover 75% of 461
any suggestions
Comments
CUCM SRND 9x/10, UCCX SRND 10x, QOS SRND, SIP Trunking Guide, anything contact center related