Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

19 Views

General Knowledge Quiz

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following statements are correct?

a. Parallel execution is possible on a single processor.

b. Concurrency is about dealing with lots of things at once. Parallelism is about doing lots of things at once. (correct)

c. Concurrent execution and parallel execution can be combined. (correct)

d. Concurrent execution is possible on a single processor. (correct)

Which of the following statements are true?

a. A kernel has to exploit concurrency in order to be efficient.

b. A hardware trap caused by dereferencing an invalid pointer is synchronous to a running process. (correct)

c. A software interrupt generated by a terminal program on user request is asynchronous to a running process. A system call is asynchronous to a running process.

e. The kernel handles asynchronous interrupts that may not be visible by any running processes. A system call is asynchronous to a running process. (correct)

How is a C programmer expected to handle runtime error situations?

The function strerror() converts an error code into a string describing the error code. (correct)

b. Unhandled runtime errors lead to exceptions that are handled by the main() function if not caught elsewhere.

c. The function void perror(const char *s) defined in stdio.h can be used to write a message s to the standard error stream followed by a message describing the last error encountered during a call to a system or library function. e. The file descriptor of the standard output is 0 and the file descriptor of the standard error is 1. (correct)

d. Error messages do not belong on the standard output and should be written to the standard error.

Which statements are true for libraries and dynamic linking?

Dynamic libraries may be shared between multiple programs that use the same dynamic libraries. Signup and view all the answers

Which of the following statements about operating system architectures are correct?

A modular architecture simplifies the development of new kernel modules such as driverrs or filesystems. Signup and view all the answers

How do system calls and programs report runtime error conditions?

a. The global symbol errno declared in errno.h resolves to an int value indicating the error code of the last error that has occurred. Signup and view all the answers