| My mother accompanied me to school on the first day. Other parents accompanied their children as well. We all waited in front of the school office.Soon a teacher came and led us to some classrooms. There we were put into four separate classes. This was when some children began to cry as the parents were not allowed into the classrooms. I did not cry because I had been to kindergarten before. Actually my mother went home soon after for she knew I would be all right. It was an enjoyable time for me as I got to know my new classmates. The teacher was very busy writing down our particulars so we had plenty of time to ourselves. Meantime some children continued to sob while their parents looked in anxiously through the windows. Soon recess came. Some of us headed for the tuck-shop while the rest headed for their parents. I bought a drink with the money my mother gave me. Getting to know my new friends had made me thirsty. After recess we went back to out classroom and my new friends and I managed to coax two boys to stop crying. In fact, soon we were laughing and playing together. Once in a while the teacher had to tell us to keep quiet as we were making too much noise. Still some parents looked in anxiously through the windows. Finally the bell rang for us to go home. Some of us were very relieved to be reunited with our parents. I too was glad to see my mother waiting for me at the school gate. I had made many friends. It had been a wonderful first day at school. | |||||||||||||||||||||
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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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