OSG202 Exam Practice Questions and
Answers
____is a sort of pseudofile that can be used to connect to processes
a. A block
b. A pipe
c. A specific file
d. A block file - ANSWER-b
_____ are used to model devices that consist of a collection of randomly addressable blocks such as
disks
a. A ...
c. The GUI between user program and the OS - ANSWER✔✔-a b
Put the steps in making a system call in order
1. System calls may vary from one OS to another
2. System calls are like procedures: take parameters, calling routine waits for response (a call to an OS
service)
3. Once a system call occurs control passes to a specific routing in system mode. If the parameters are
correct and legal the request will be executed (a trap into the OS code)
a. 1, 2, 3
b. 2, 3, 1
c. 3, 1, 2
d. 3, 2, 1 - ANSWER✔✔-b
Which of these statements about Monolithic Systems are true?
a. A set of service procedures that carry out the system calls
b. A set of utility procedures that Help the service procedures
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