TCS Placement: Sample Questions 376 - 377 of 502

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Question 376

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Describe in Detail

Essay▾

Name the categories of multiplexing

Explanation

There are three basic forms of multiplexing:

  • Frequency Division Multiplexing (FDM) : In Frequency Division Multiplexing (FDM) multiple data signals are combined for simultaneous transmission via a shared communication medium.
  • Time Division Multiplexing (TDM) : In Time division multiplexing (TDM) two or more streaming digital signals are transmitted over a common channel.
    • Synchronous TDM
    • Asynchronous TDM or Statistical TDM
  • Wave Division Multiplexing (WDM) : In wavelength division multiplexing, (WDM) numerous data streams are modulated, i.e.. optical carrier signals of varying wavelengths (colors) of laser light, onto a single optical fiber.
Types of Multiplexing

Question 377

Question

MCQ▾

Which of the following concept of oops allows compiler to insert arguments in a function call if it is not specified?

Choices

Choice (4)

a.

Call by reference

b.

Call by value

c.

Call by pointer

d.

Default arguments

Answer

d.

Explanation

  • “Default arguments” allows compiler to insert arguments in a function call not specified by the caller.
  • Value of default argument is provided in function declaration and automatically assigned by the compiler if caller of the function does not provide a value for the argument with default value.
  • Following simple C ++ example demonstrates use of default arguments.
Given the Image is Define the Working of Default Argument in C ++

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