WGU D488 OBJECTIVE ASSESSMENT EXAM 2026/2027 | ACTUAL 350+ QUESTIONS WITH VERIFIED ANSWERS |NEWEST UPDATE GRADED A+.

WGU D488 OBJECTIVE ASSESSMENT EXAM 2026/2027 | ACTUAL 350+ QUESTIONS WITH VERIFIED ANSWERS |NEWEST UPDATE GRADED A+. Question 5: How does Output Feedback (OFB) mode operate in cryptography? It uses the previous ciphertext for encryption. It turns a block cipher into a synchronous stream cipher. It requires padding of the plaintext. It does not allow for error propagation. Hide Answer Correct! Well done! Correct Answer: It turns a block cipher into a synchronous stream cipher. OFB mode generates a keystream independently of the plaintext and ciphertext, allowing for error-free encryption and decryption. Question 6: What is the function of Counter (CTR) mode in encryption? It produces a one-time pad. It uses a counter value to generate ciphertext. It relies on a previous ciphertext block for encryption. It operates only on fixed-size blocks. Hide Answer Correct! Well done! Correct Answer: It uses a counter value to generate ciphertext. CTR mode increments a counter for each block, encrypts it, and XORs it with the plaintext to produce the ciphertext.