A test taken under simulated real-exam conditions, often for preparation. Synonymous with 模擬試験.
See also: 模擬試験
I'm studying for the practice test next week.
I checked my weak points by looking at the mock exam results.
Compound of 模擬 (mogi, 'simulation') and テスト (tesuto, 'test'). 模擬 is a Sino-Japanese word, and テスト is a loanword from English.