Podcast
Questions and Answers
Which data structure is used for storing elements where each is a separate object?
Which data structure is used for storing elements where each is a separate object?
- Stack
- Queue
- Tree
- Linked list (correct)
Which data structure follows the Last-In, First-Out (LIFO) principle?
Which data structure follows the Last-In, First-Out (LIFO) principle?
- Tree
- Linked list
- Stack (correct)
- Queue
Which data structure follows the First-In, First-Out (FIFO) principle?
Which data structure follows the First-In, First-Out (FIFO) principle?
- Tree
- Queue (correct)
- Linked list
- Stack
Which data structure represents a hierarchical nature of a structure in a graphical form?
Which data structure represents a hierarchical nature of a structure in a graphical form?
Which data structure is a complete binary tree where the value of each parent node is either higher or lower than the value of its child nodes?
Which data structure is a complete binary tree where the value of each parent node is either higher or lower than the value of its child nodes?
True or false: The counting semaphore allows more than three operations to be performed on it.
True or false: The counting semaphore allows more than three operations to be performed on it.
True or false: The binary semaphore allows values other than zero and one.
True or false: The binary semaphore allows values other than zero and one.
True or false: The mutex lock can be unlocked by any process.
True or false: The mutex lock can be unlocked by any process.
True or false: The condition variable is used to block a process until a specific condition is false.
True or false: The condition variable is used to block a process until a specific condition is false.
True or false: The monitor encapsulates only variables within an abstract data type.
True or false: The monitor encapsulates only variables within an abstract data type.
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Study Notes
Concurrency Mechanisms
- A Counting Semaphore is a concurrency mechanism that involves an integer value used for signaling processes.
- Three atomic operations can be performed on a semaphore: initialize, decrement, and increment.
- The decrement operation may block a process, while the increment operation may unblock a process.
- Counting Semaphore is also known as a general semaphore.
Binary Semaphore
- A Binary Semaphore is a type of semaphore that only takes two values: 0 and 1.
Mutual Exclusion (Mutex) Lock
- A Mutex Lock is similar to a binary semaphore, but with a key difference:
- The process that locks the mutex must be the one to unlock it.
- Only the holder of the lock can operate on it.
Condition Variable
- A Condition Variable is a data type that blocks a process or thread until a specific condition is true.
Monitor
- A Monitor is a programming construct that encapsulates:
- Variables
- Access procedures
- Initialization code
- Abstract data type.
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