The difference between the snapshot technique and the extended record technique is:

a. With the extended record technique, record images that are collected at different points in an application system are stored contiguously, whereas with snapshot they are stored separately

b. More audit evidence is collected with the extended record technique, especially in terms of material processing relating to asset safeguarding and data integrity objectives

c. Printing of audit reports in snapshot is immediate upon evidence being collected, whereas printing of records with extended records is delayed

d. Only afterimages of transactions are collected using the snapshot technique, whereas both before images and afterimages are collected with extended records