Operating Systems Quiz
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Questions and Answers

Which portion of an OS stays in memory the entire time the computer is on?

  • Interrupt
  • CPU
  • Kernel (correct)
  • Overlay

    • Which of the following is not considered a multitasking OS?

  • Linux
  • Windows
  • UNIX
  • DOS (correct)

    • What OS method allows multiple processes to share the CPU effectively?

  • Time slicing (correct)
  • I/O
  • Command line
  • Multiuser

    • How are deadlocks typically resolved in a system?

    <p>The OS</p> Signup and view all the answers

    What must be done to a disk before it can be used?

    <p>Partitioned and formatted</p> Signup and view all the answers

    What is the correct command to list files and folders on a Linux disk?

    <p>ls</p> Signup and view all the answers

    Which command is used in Windows to create a new folder?

    <p>md</p> Signup and view all the answers

    Is Windows a case-sensitive operating system?

    <p>False</p> Signup and view all the answers

    What function does a decoder usually perform in a computer?

    <p>Addressing memory</p> Signup and view all the answers

    Boolean expressions are simplified through the use of which method?

    <p>Basic identities</p> Signup and view all the answers

    What features made transistors superior to vacuum tubes for use in computers?

    <p>They were cheaper, smaller, and cooler than tubes and lasted longer.</p> Signup and view all the answers

    Which type of I/O processing is generally considered the most efficient?

    <p>Interrupt</p> Signup and view all the answers

    What was the pastry that helped move jobs up in the queue during second generation software, and what software development made that pastry unnecessary?

    <p>Donuts and time-sharing</p> Signup and view all the answers

    What defines the display quality of a monitor?

    <p>Resolution</p> Signup and view all the answers

    What magazines contributed to the rise of the first microcomputer?

    <p>Popular Electronics and Radio Electronics</p> Signup and view all the answers

    Most modern computers are based on which architecture?

    <p>Von Neumann architecture</p> Signup and view all the answers

    What important concept was utilized by the Altair, influencing its competitors including the IBM personal computer?

    <p>The machine had an open architecture</p> Signup and view all the answers

    Which component of the CPU is responsible for performing mathematical operations?

    <p>ALU</p> Signup and view all the answers

    What was the largest market for the Apple computer and what software contributed to its popularity?

    <p>The business market and the program VisiCalc</p> Signup and view all the answers

    In computer terminology, what is a set of wires and protocols designed to facilitate data transfer called?

    <p>Bus</p> Signup and view all the answers

    Which software company dominated the market in 1990 and what major product did it sell?

    <p>Microsoft and Word</p> Signup and view all the answers

    The quality of printer output is typically measured in which unit?

    <p>dpi</p> Signup and view all the answers

    What system does Microsoft consider its major competition in operating systems today?

    <p>Apple's macOS</p> Signup and view all the answers

    What key attribute allowed transistors to improve overall system performance compared to vacuum tubes?

    <p>They had a longer lifespan.</p> Signup and view all the answers

    Which of the following is a LAN topology?

    <p>Star</p> Signup and view all the answers

    What is the OSI layer of a repeater?

    <p>Physical</p> Signup and view all the answers

    How can DSL speeds be categorized?

    <p>256 Kbps to 1.5 Mbps</p> Signup and view all the answers

    Standard voice-grade lines are designed to carry frequencies in the range of:

    <p>300 Hz to 3300 Hz</p> Signup and view all the answers

    Which of the following is not a network device?

    <p>Ramp</p> Signup and view all the answers

    What factor reduces the strength of an electrical signal as it travels along a transmission medium?

    <p>Attenuation</p> Signup and view all the answers

    Which is the most commonly used twisted pair cable category?

    <p>Cat 5</p> Signup and view all the answers

    Which type of guided medium is the least susceptible to attenuation and inductance?

    <p>Fiber-optic cable</p> Signup and view all the answers

    What does Second Normal Form (2NF) require of nonkey columns?

    <p>Every nonkey column must be fully dependent on the primary key.</p> Signup and view all the answers

    Which statement best defines a primary key in a database table?

    <p>A primary key uniquely identifies each row in a table.</p> Signup and view all the answers

    In the context of database design, which step is NOT part of the process?

    <p>Optimize query performance</p> Signup and view all the answers

    Which statement regarding the SQL INSERT INTO statement is true?

    <p>The INSERT INTO statement allows adding multiple records in one statement.</p> Signup and view all the answers

    When creating a new table in SQL, why is it important to specify NULL or NOT NULL for columns?

    <p>It defines whether a column can store blank entries.</p> Signup and view all the answers

    What is the purpose of the ORDER BY clause in an SQL SELECT statement?

    <p>To sort the returned data in a specific order.</p> Signup and view all the answers

    Which statement about arrays is correct?

    <p>Elements in an array are accessed using indexing.</p> Signup and view all the answers

    What does third normal form (3NF) state regarding nonkey columns?

    <p>No nonkey column should depend on another nonkey column.</p> Signup and view all the answers

    Does the declaration 'char[] aAnswers = new char' allocate memory locations of 1 through 5?

    <p>False</p> Signup and view all the answers

    What does the offset in memory locations signify?

    <p>The distance between memory locations.</p> Signup and view all the answers

    Are arrays considered a good data structure for handling dynamic data?

    <p>False</p> Signup and view all the answers

    What structure does a stack utilize?

    <p>LIFO</p> Signup and view all the answers

    How does a queue retrieve its elements?

    <p>First In, First Out.</p> Signup and view all the answers

    What does LIFO stand for?

    <p>Last in, first out.</p> Signup and view all the answers

    What does FIFO represent?

    <p>First in, first out.</p> Signup and view all the answers

    What is the key feature of a binary search tree?

    <p>Each node has at most two children.</p> Signup and view all the answers

    Study Notes

    Multiple Choice Questions

    • Question 1: In 1642, Pascal created a mechanical device. This device could calculate addition, subtraction, multiplication, and division.
    • Question 2: Leibniz improved Pascal's device by adding multiplication and division capabilities to Pascal's addition and subtraction abilities.
    • Question 3: The Jacquard loom uses reusable cards with holes to hold information, similar to a player piano.
    • Question 4: IBM's origins are traced back to the 1890 U.S. census.
    • Question 5: Four key components of Babbage's engine, found in today's computers, include the stored program technique, and input, output, and memory devices.
    • Question 6: Peirce found that electrical switches can effectively model logical elements.
    • Question 7: The ENIAC computer was used for its intended purpose in World War II.
    • Question 8: John Von Neumann is credited with the concept of the stored program computer.
    • Question 9: In the 1960s and 1970s, IBM controlled more than 70% of the computer market.
    • Question 10-20: These questions cover topics ranging from the invention and evolution of computers and software, to computer architecture, concepts, and networking. They focus on various historical figures, key advancements, and the development of fundamental computer science principles. Multiple correct responses, or correct descriptions, exist for many of these questions.

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    Description

    Test your knowledge on key concepts of operating systems in this quiz. Topics include multitasking, process management, disk usage, and the evolution of hardware components. Perfect for students studying computer science or information technology!

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