The question asks about the fundamental control structures that constitute structured programming. Structured programming is a programming paradigm aimed at improving the clarity, quality, and development time of a computer program by making extensive use of subroutines, block structures, and three fundamental control flow structures: sequencing, selection (alternation), and iteration (looping).
if-else statements or switch-case statements.for loops, while loops, and do-while loops.D) All of these. Structured programming is built upon these three fundamental control structures: sequencing for executing statements in order, alternation for making decisions, and iteration for repeating actions.
Converting an infix expression to a postfix expression is a common task in compiler design and involves reordering operators and operands. This process typically requires a data structure that can temporarily store operators and manage their precedence. The properties of a Stack (Last-In, First-Out) make it ideal for this purpose.
This algorithm, often called the Shunting-yard algorithm, relies heavily on the LIFO (Last-In, First-Out) nature of a stack to correctly manage operator precedence and parentheses.
D) Stack — A stack is the fundamental data structure used for converting infix expressions to postfix expressions. Its LIFO property allows for efficient management of operator precedence and parentheses during the conversion process.
The question asks for a type of protected area specifically reserved for wildlife in its natural surroundings. We need to identify the correct term among the given options that best fits this description, distinguishing between different categories of protected areas.
D) Sanctuary — A wildlife sanctuary is an area specifically designated for the protection of wild animals in their natural habitat. Human activities are generally restricted to ensure minimal disturbance to the wildlife.
Dividing a program into functions :
makes the program easier to conceptualize
may reduce the size of the program
both of these
none of these
The question asks about the benefits of dividing a program into functions. We need to evaluate each given option to determine its validity in the context of software development principles.
When a large program is broken down into smaller, manageable functions, each function can be designed to perform a specific task. This modular approach allows developers to focus on one part of the program at a time, making the overall logic easier to understand, design, and debug. This is a core principle of modular programming and good software engineering.
Functions promote code reusability. If a particular piece of code needs to be executed multiple times at different points in the program, it can be encapsulated within a function and called whenever needed, rather than being written out repeatedly. This significantly reduces the total lines of code, thereby reducing the program's size. While there might be a small overhead for function calls, the overall reduction in code duplication often leads to a smaller executable.
Since both statements A and B are true and represent significant advantages of using functions in programming, the option that includes both of them would be the most accurate answer.
C) both of these
Dividing a program into functions indeed makes it easier to conceptualize (due to modularity and abstraction) and can reduce its size (due to code reusability). These are fundamental benefits of functional decomposition in programming.
The question asks about a special accessory essential for computers to communicate with each other, especially over traditional telephone lines or similar analog communication channels. This requires a device that can convert digital signals from a computer into analog signals for transmission and vice-versa.
Correct Option: B) Modem
The question asks where a computer's operating system (OS) resides while the computer is running. This involves understanding the different types of computer memory and their roles.
Correct Option: B) primary storage
Primary storage, specifically RAM (Random Access Memory), is where the operating system resides and runs from when the computer is switched on. This allows the CPU to quickly access and execute the OS instructions, which are essential for the computer's operation.
The question asks what determines a language's grammar. We need to identify the term that specifically refers to the rules governing sentence structure and word arrangement in a language.
Correct Option: C) Syntax is the set of rules that governs the structure of sentences in a given language. It is the fundamental component of grammar that dictates how words are combined to form phrases, clauses, and sentences, thereby determining the grammatical structure of a language.
This problem can be solved using the rule of alligation, which is a method used to find the ratio in which two or more ingredients at given prices must be mixed to produce a mixture of a desired price.
Correct Option: A) The ratio in which rice at ₹7.20 a kg be mixed with rice at ₹6.00 a kg to produce a mixture worth ₹6.30 a kg is \(1 : 3\).
A pixel is :
A computer program that draws picture
A picture stored in secondary memory
The smallest resolvable part of a picture
None of these
The question asks for the definition of a pixel. We need to identify the option that accurately describes what a pixel is in the context of digital images and displays.
Correct Option: C) The smallest resolvable part of a picture
This definition accurately describes a pixel. A digital image is made up of a grid of these tiny squares, each displaying a single color. The resolution of an image or screen is determined by the number of pixels it contains (e.g., 1920x1080 pixels).
The question asks about the primary benefit of flexible manufacturing. Flexible manufacturing systems (FMS) are designed to adapt to changes in production requirements. We need to identify which option best describes this core advantage.
Correct Option: D) quick and inexpensive product change