Computer System Architecture

151. Which are the problem of critical section:

1. Mutual exclusion
2. Progress
3. Bounded wait
4. All of these

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152. Which section refer to the code segment of a process that is executed when the process intends to enter its critical section:

1. Critical section
2. Entry section
3. Reminder section
4. None of these

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153. Which section refer to the code segment where a shared resource is accessed by the process:

1. Reminder section
2. Entry section
3. Both
4. None of these

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154. Which section is the remaining part of a process’s code:

1. Racing section
2. Critical section
3. Entry section
4. Reminder section

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155. How many conditions for controlling access to critical section:

1. 2
2. 4
3. 3
4. 5

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156. Which instruction provides a direct hardware support to mutual exclusion:

1. SP instruction
2. TS instruction
3. Both
4. None of these

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157. Which instruction also improves the efficiency of the system:

1. Swap instruction
2. TS instruction
3. Both
4. None of these

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158. Which instruction allows only one concurrent process to enter the critical section:

1. RP instruction
2. SP instruction
3. TS instruction
4. None of these

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159. Which section problem can be solved simply in a uniprocessor environment if the we are able to prevent the occurrence of interrupt during the modification of a shared variable:

1. Entry section
2. Critical section
3. Non-critical section
4. None of these

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160. The problem of readers and writers was first formulated by ____________:

1. P.J. Courtois
2. F.Heymans
3. D.L. Parnas
4. All of these

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