Computer Science for IGCSE & O level - Data Transmission (Section 11 - No. 27)
How are checksums typically calculated?
By encrypting the data.
By adding up the data values and taking the remainder after division by a certain number.
By compressing the data.
By reversing the order of the data bits.
Giải thích
Checksums are calculated by adding data values and applying a modulo operation.