Which of the following is true of signals in Linux?
Question 1 options:
| 1) | They could be used for communication among processes | |
| 2) | Processes can choose to ignore many of them | |
| 3) | A process may only send signals to processes in the same group | |
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Which of the following classes of Linux threads do/does not have a time quantum associated with them?
Question 2 options:
Two instances of the same Linux program (say cp) could share their
Question 3 options:
A socket is analogous to
Question 4 options:
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| 2) | a phone that is not attached to a telephone jack | |
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Special files in Linux are used to represent
Question 5 options:
According to the discussion in Chapter 12, perfection is reached when
Question 6 options:
| 1) | nothing more can be added to the system | |
| 2) | nothing is in the system | |
| 3) | all system calls are implemented as library functions | |
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Based on the discussion on Naming, which of the following statements is NOT true?
Question 7 options:
| 1) | Directories are used to map external names onto internal names. | |
| 2) | For a file in Unix, both its file name and its i-node number can be used internally. | |
| 3) | How to construct and manage the names for identifying the entities, such as files, processes, and devices etc., is an important issue in operating system design and implementation. | |
| 4) | External names are primarily designed for human beings to use while internal names are always used by the system. | |
Based on the discussion in Chapter 12, which of the following is considered as one of the guiding principles for the system call interface design?
Question 8 options:
| 1) | If a feature or system call cannot be implemented efficiently, that functionality is not useful and programs should not be using it. | |
| 2) | If a feature or system call might be useful in the future, it should be put in a user-level library, not in the operating system. | |
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Which of the following statements is/are true?
Question 9 options:
| 1) | Figure 12.8 is an example that demonstrates space-time tradeoff | |
| 2) | Moores Law says that computer hardware improves by a factor of 100 every decade. | |
| 3) | Dijkstras THE system was the first layered operating system. | |
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Based on the discussion in Chapter 12, which of the following is not one of the new system trends?
Question 10 options:
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| 2) | 32-bit address based systems. | |
| 3) | Hypervisor based systems. | |
| 4) | Handheld wireless computers. | |