| Far up in the mountains of Canada, there is an old abandoned log cabin. Once it was occupied by a young couple who wanted to distance themselves from the chaos of this modern world. Here they were miles away from the nearest town. Bob, the husband, made the occasional trip into town to buy supplies whereas Jan, his wife, spent her free time by the fire, sewing. Their life was simply idyllic.Then, one midwinter's day, Jan woke up from bed with a strange ache in her bones. Putting it down to overwork, Bob shooed her to bed and made sure she rested. Though Jan was impatient to get to her chores, Bob soothed her, "Relax, Sugar. You're overdoing things. All these chores will be here when you recover." However, Jan seemed to be getting worse instead of recovering. By evening, she was running a high fever and in greater pain. In spite of his best efforts, Bob could not manage to ease her suffering. And then suddenly, she started to lapse into unconsciousness. It was then obvious that she was seriously ill. What could Bob do? He had no experience in treating the sick and Jan was getting worse by the minute. He knew that there was an old doctor in town but he lived three miles away, downhill. Pot-bellied and obese, there was no way the doctor could make it up to their cabin. Something had to be done quickly! Bob racked his brains but to no avail. The only thing left to do was to go to the doctor. In Jan's condition, she could never walk that far in the waist-deep snow. Bob would have to carry her! Bob searched his mind for a way to move poor, sick Jan. Then, he remembered. He had once made a sledge so that they could ride together over the mountain. They never got around to using it though, because the whole mountain was thickly covered with rocks and trees. He had never found a safe way down, not even once. "Well," he thought, "looks like I'm going to have to try it anyhow," as he dug out the sledge from the storeroom. "Jan may die unless I get her to the doctor, and life means nothing to me without her." With this thought in mind, Bob gently tucked Jan into the sledge, got in the front, and with a short prayer for safety, pushed off. How they got through that ride alive, Bob has never figured out. As trees loomed up in front of him and just as quickly whizzed by his side, close enough to touch, he felt relieved that Jan was not awake to experience the ride. It was all he could do not to scream as collision seemed imminent, time and again, with only inches to spare. At last, bursting from the mountainside, the town came into view. Barely slowing down, they sped through the icy streets, only losing speed as they neared the doctor's house. The sledge, battered through the journey, collapsed in the left ski as it came to a halt, spilling out its occupants. Bob picked up his Jan and made his way into the doctor's house. After what seemed to be a long winter, Jan recovered fully from her illness but Bob never recovered from his fright. They moved into the little town so as to be near help in times of crisis, and have lived there ever since. | ||||||||||||||||||
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Cyber Attack Countermeasures : Module 4 Quiz #cyber #quiz #coursera #exam #module #answers 1 . Question 1 CBC mode cryptography involves which of the following? 1 / 1 point Mediation of overt channels Mediation of covert channels Auditing of overt channels Auditing of covert channels None of the above Correct Correct! CBC mode is specifically designed to close covert communication channels in block encryption algorithms. 2 . Question 2 Which is a true statement? 1 / 1 point Conventional crypto scales perfectly well Conventional crypto scales poorly to large groups Conventional crypto does not need to scale All of the above Correct Correct! The symmetric key based method inherent in conventional cryptography does not scale well to large groups. 3 . Question 3 Public Key Cryptography involves which of the following? 1 / 1 point Publicly known secret keys Publicly known private keys Publicly known public keys All of the above ...
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