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Questions and Answers
In the context of multithreaded programming, what is the most significant risk associated with race conditions?
In the context of multithreaded programming, what is the most significant risk associated with race conditions?
- Increased memory consumption due to thread duplication.
- Compiler optimization failures causing performance degradation.
- Unpredictable program behavior and potential data corruption. (correct)
- Deadlock scenarios leading to complete program termination.
What is the primary challenge in ensuring cache coherence in a shared-memory multiprocessor system?
What is the primary challenge in ensuring cache coherence in a shared-memory multiprocessor system?
- Minimizing the cost of cache memory per processor.
- Reducing the overall memory footprint of the operating system.
- Guaranteeing that all processors have a consistent view of data. (correct)
- Optimizing the clock speed of individual processor cores.
Which of the following best describes the fundamental difference between preemptive and non-preemptive multitasking?
Which of the following best describes the fundamental difference between preemptive and non-preemptive multitasking?
- Preemptive multitasking is suitable for real-time systems, while non-preemptive multitasking is preferable for batch processing.
- Preemptive multitasking allows the operating system to interrupt and switch tasks, while non-preemptive multitasking relies on each task to yield control. (correct)
- Preemptive multitasking allows tasks to voluntarily release control, while non-preemptive multitasking relies on a timer interrupt.
- Preemptive multitasking uses dynamic priorities, while non-preemptive multitasking uses static priorities.
In the context of distributed systems, what is the CAP theorem, and which trade-off does it force system designers to consider?
In the context of distributed systems, what is the CAP theorem, and which trade-off does it force system designers to consider?
When evaluating the performance of different sorting algorithms, which metric provides the most accurate comparative assessment?
When evaluating the performance of different sorting algorithms, which metric provides the most accurate comparative assessment?
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Study Notes
Introduction to Biology
- The cell is the basic structural and functional unit
- Movement, respiration, homeostasis, growth, reproduction, excretion, and nutrition are basic properties of life
Cell Theory
- Cell theory states that the cell is the fundamental unit of structure and function in living things
- All organisms are composed of one or more cells
- Cells arise from pre-existing cells through division
- Modern iteration includes energy movement, DNA transfer, and primary chemical makeup
Exceptions to Cell Theory
- Viruses are acellular and require a host cell to be considered alive
- Viroids and prions are exceptions to the cell theory
- Red blood cells and sieve tube cells lack nuclei and cannot divide
- Bacteria and cyanobacteria lack a well-organized nucleus
- Coenocytic hyphae and cells of Vaucheria are multinucleate
- Protozoans are acellular
Microscopy
- Microscopy is the technique used to view objects that are not seen by the naked eye
- Light microscopes use visible light and a two-lens system
- Electron Microscopy has high resolution which uses accelerated electrons
- Magnification is the capacity of the instrument to increase the size of an object
- Resolution is the ability to distinguish between two close points
- A light microscope can magnify up to 1500X, while an electron microscope can magnify up to 50 million times
Animal and Plant Cell Ultrastructure
- Ultrastructure refers to the fine structure of the cell that can only be seen with an electron microscope
- Both animal
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