Give a stream of consciousness and then the final answer. -Amylase (EC 3.2. 1.3) (alternative names: Glucan 1, 4--glucosidase; amyloglucosidase; Exo-1, 4--glucosidase; glucoamylase; lysosomal -glucosidase; 1, 4--D-glucan glucohydrolase) will cleave (1 -- 6) glycosidic linkages, as well as the last (1 -- 4) glycosidic linkages at the nonreducing end of amylose and amylopectin, yielding glucose. The -amylase has most acidic optimum pH of all amylases because it is most active around pH 3.

Answer this question: which type of amylase will cleave both -1 4 and -1 6 glycosidic bonds?
The relevant information is: -Amylase (EC 3.2. 1.3) (alternative names: Glucan 1, 4--glucosidase; amyloglucosidase; Exo-1, 4--glucosidase; glucoamylase; lysosomal -glucosidase; 1, 4--D-glucan glucohydrolase) will cleave (1 -- 6) glycosidic linkages, as well as the last (1 -- 4) glycosidic linkages at the nonreducing end of amylose and amylopectin, yielding glucose.
So, the final answer is - Amylase ( EC 3.2. 1.3 ) ( alternative names : Glucan 1 , 4 - - glucosidase ; amyloglucosidase ; Exo - 1 , 4 - - glucosidase ; glucoamylase ; lysosomal - glucosidase ; 1 , 4 - - D - glucan glucohydrolase ).