7. Show that two-dimensional parity allows detection of all 3-bit errors. Give an example of a 4- bit error that would not be detected by two-dimensional parity, as illustrated in Figure 2.14 in the textbook. What is the general set of circumstances under which 4-bit errors will be undetected? Show that two-dimensional parity provides the receiver enough information to correct any 1-bit error (assuming the receiver knows only 1 bit is bad), but not any 2-bit error. 7. Show that two-dimensional parity allows detection of all 3-bit errors. Give an example of a 4- bit error that would not be detected by two-dimensional parity, as illustrated in Figure 2.14 in the textbook. What is the general set of circumstances under which 4-bit errors will be undetected? Show that two-dimensional parity provides the receiver enough information to correct any 1-bit error (assuming the receiver knows only 1 bit is bad), but not any 2-bit error