List of practice Questions

The optimizer that explores the space of all query-evaluation plans is called ________.
 

In the spiral model of software development, the primary determinant in selecting activities in each iteration is ________.
 

The cyclomatic complexity metric provides the designer with information regarding the number of ________.
 

The incremental model of software development is ________.
 

The database design that consists of multiple tables that are linked together through matching data stored in each table is called a _______.
 

Which of the following is an example of an exothermic reaction?
Which of the following is the unit of electric charge?
Which of the following represents the correct relationship between the speed of light \( c \), frequency \( \nu \), and wavelength \( \lambda \)?
Which of the following is a type of nuclear decay that involves the emission of an alpha particle?
The process of removing an electron from an atom is called:
What is the unit of electrical resistance?
Which of the following is the correct relationship for Ohm's Law?
Which of the following elements has the highest atomic number?
Which of the following is a valid method for solving a system of linear equations?
What is the principle of the operation of a hydraulic press?
GIS ideally deals with _________.
Spectral region of electromagnetic radiation which passes through atmosphere without much attenuation is known as _________.
________ defines the property of connectivity in GIS.
Which of the following are true of AM/FM systems?
In a town, the probability that a person attends a gym on weekdays is 0.7, the probability that a person attends the gym on weekends is 0.4, and the probability that a person attends the gym on weekdays or weekends, or both is 0.3. What is the probability that a person attends the gym on both weekdays and weekends?
In a workshop of 100 machines, 25 machines are defective. Assuming the Poisson law for the number of defective machines, the probability that a random sample of 5 machines will have no defective machine is
Let \( A, B \) be two events of a sample space such that \( P(A) = \frac{1}{4} \), \( P(B|A) = \frac{1}{2} \), \( P(A|B) = \frac{1}{4} \). If \( \overline{B} \) is the complement of \( B \), then \( P(A | \overline{B}) \) is _____
Consider the system of equations: \[ \begin{aligned} x + y + z &= 6 \\ 2x + 2y + 3z &= 13 \\ 3x + 4y + 5z &= 20 \end{aligned} \] Which of the following statements is true about the solution to this system?
Let \( f: \mathbb{R} \rightarrow \mathbb{R} \) be a function such that \( f(0) = 3 \) and \( |f'(x)| \leq 2 \), \( \forall x \in \mathbb{R} \). Then \( f(2) \) lies in which of the following intervals?
The directional derivative of the function \( f(x, y) = 2x^2 + y^2 \) along a line directed from \( (0, 0) \) to \( (1, 1) \), evaluated at the point \( x = 1, y = 1 \), is ___