Miscellaneous On Data Structures - Study Mode

[#786] What is the formula used for decoding the ciphered text using affine cipher(a,b are constants and x is the numerical equivalent of a letter to be encrypted)?
Correct Answer

(A) a -1 (x-b)%26

[#787] Auto key cipher is more secure than polybius square cipher?
Correct Answer

(A) true

[#788] Which of the following cipher replaces letters with symbols?
Correct Answer

(D) pigpen cipher

[#789] Which complete graph is not present in minor of Outer Planar Graph?
Correct Answer

(C) K3, 2

[#790] The letters of a word are separated by a space of how many durations?
Correct Answer

(C) 3 Dot Duration