'ka' is a question marker , and it indicates a question being asked. so yes, very similar to how in Tagalog the word 'ka' is also a question marker.
For example, if you want to know how much something costs in Japanese you will say:
Are wa iku ra desu ka? (how much does this cost)
Kare wa isogasshi desu ka ? (is that guy busy?)
Nani wo yomimasu ka? (what are you reading?)
Pilipinjin desu ka? (are you Filipino?)
Ima nanji desu ka? (what time is it?)
Nihongo wo dekimasu ka ? (do you speak Japanese?)
Bisaya wo dekimasu ka? (do you speak Bisaya?)
Sug-buanon wo dekimuasu ka ? (Do you understand Cebuano? )
lol
Pare, parehopareho ra jud bitaw ang usage sa 'ka' sa atoha atoha.