Which of the following compressions require lowest bandwidth; MJPEG, MPEG4 and H.264?

H.264 is the lowest among the three mentioned compressions.

h.264 is low bandwidth compare other

H.264 IS LOWES BANDWIDTH SIMILAR TO MPEG 4

H.264 and Recently they developed new technology H.265

H.264 and MPEG-4 are similar in that they both reduce bandwidth and storage by examining groups of images when they compress video.  Because H.264's rules are more sophisticated, they can reduce bandwidth and storage even more than MPEG-4. However, the trade-off is that it takes more CPU cycles to do it.

H.264 - compression is the best in case of low bandwidth utilization 

H.265, Now the new cameras have much lower Bandwidth with H.265

H.264 - widely used, better compression, and distribution of video content.

The bandwidth requirement for H.264 compression is very less compared to others.