Hello Ken! Digital Banking有一大重點要分享嘅係佢其實係bank every level (front to back end)嘅digitalisation，唔淨只係大家見到online / mobile banking等等client-facing嘅一面，所以例如銀行背後嘅admin process, data-processing等等都會有"Digital Banking"呢個概念，但主要係泛指bank嘅digital transformation。

不過，大部分依家認識嘅"Digital Banking"，都好可能係under Retail Banking嘅一個部門，主要就真係處理所有線上銀行服務，亦都係大家搵工多數所指嘅digital banking。

專業嘢留俾專家講，如果要好快準備咩係digital banking、有咩services、有咩pros/cons，甚至有無examples袋袋for potential written test / assessments，可以參考下面嘅links：

IBM: Digital Transformation in Banking (for case studies)

HSBC: Digital Banking (can see how a bank talks about their digital banking)

Hope the above helps!