| Everyday many people are involved in road accidents. Some are killed. Many more are injured or maimed. So it is important for us to learn to use the roads properly and safely. No sane person would like to be involved in an accident.As the roads are very busy nowadays, we should be very careful when crossing one. It is safer to use a pedestrian crossing or an overhead bridge whenever one is available. Never cross a road by dashing across it. That is inviting trouble. If there are no crossings, then we must look carefully right and left and cross only when it is safe to do so. Some of us take the bus to school. It is important that we do not try to get on or off a bus while it is still moving. I tried to get on a moving bus once. It dragged me a short distance and nearly ran over me. I was lucky to escape with only some scratches on my legs. Also we must not fool around while in the bus. A suddenly lurch can send us knocking our heads against something hard. Using a bicycle can be dangerous too. We must pay attention on the road and never cycle too far out to the middle of the road. We must obey all traffic rules. Also we must make sure our bicycles are in good condition with working brakes, lights etc. These are some things we can do to avoid accidents. However there is no guarantee that we will never be involved in one. The important thing is to stay alert at all times while using the roads. We must know what is happening around us. In that way we can take necessary action to avoid danger whenever we see one. Road safety is very much up to how we use the roads. Use them carefully and we may be able to use them for a long time. Use them carelessly and we may never be able to use them again. | ||||||||||||||||||
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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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