Variables used for controlling access to a shared resource by multiple threads

Explain this hard concept in less than 40 characters thes[blank_start]e are the 40 characters that you can use[blank_end]

e are the 40 characters that you can use

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Technical Test

Asad Butt 5 preguntas Actualizado el 17 sep 2016

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1What are semaphores?
1. AIts a desert
2. BVariables used for controlling access to a shared resource by multiple threads
3. CAnother word for mutexes
4. DNone of the above
2This is the second question
1. AOption 1
2. BOption 2
3. CCorrect Answer
4. DAnother wrong answer
3This is the third question
1. Awrong option 1
2. Bwrong option 2
3. Cwrong option 3
4. Dcorrect option 1
4Check all that apply question (check all that apply)
1. AOption 1
2. BOption 2
3. CWrong Option
5Explain this hard concept in less than 40 characters thes[blank_start]e are the 40 characters that you can use[blank_end]
1. Ae are the 40 characters that you can use