Practice IT Networking Questions and Answers

• Which type of memory can be both read from and written to by the processor?
• Which type of memory is faster to access and closer to the processor, providing temporary storage for frequently used data?
• Which type of memory can be electrically erased and reprogrammed in blocks or sectors?
• Which type of memory is pre-programmed with data during the manufacturing process and cannot be modified?
• Which type of memory is designed to provide high-speed access to frequently used data and instructions?
• Which type of memory is used for firmware and contains the initial boot-up instructions for a computer system?
• Which command is used to create a new file in a Unix/Linux system?
• Which command is used to display the contents of a file in a Unix/Linux system?
• Which command is used to rename a file in a Unix/Linux system?
• Which command is used to delete a file in a Unix/Linux system?
• Which command is used to copy a file from one location to another in a Unix/Linux system?
• Which command is used to change the permissions of a file in a Unix/Linux system?
• Which command is used to search for a specific pattern in a file in a Unix/Linux system?
• Which command is used to append the contents of one file to another file in a Unix/Linux system?
• Which command is used to sort the lines of a file in a Unix/Linux system?
• Which command is used to count the number of lines, words, and characters in a file in a Unix/Linux system?
• Which of the following is a boolean function?
• How many possible boolean functions can be defined on n variables?
• Which boolean operator represents logical AND?
• The truth table for a boolean function with two variables, A and B, has four rows. How many different boolean functions can be defined with two variables?
• Which of the following is the boolean expression for the XOR function?
• The boolean function f(x, y, z) = (x AND y) OR (NOT(y) AND z) is equivalent to which of the following boolean expressions?
• Which boolean function returns true if and only if all input variables are true?
• The boolean function f(x, y) = x OR (NOT(y)) is equivalent to which of the following boolean expressions?
• The boolean function f(x, y, z) = (x AND y) OR (x AND NOT(z)) is equivalent to which of the following boolean expressions?
• Which of the following boolean functions is commutative?
• Which of the following components is used to amplify an analog signal?
• In an RC circuit, what happens to the charging time constant (τ) if the resistance (R) is increased?
• What is the purpose of a voltage divider circuit?
• Which of the following is an example of an active electronic component?
• The gain of an amplifier is defined as:
• What is the purpose of a diode in a circuit?
• Which of the following is used to store electrical energy in a circuit?
• Which of the following characteristics describes an ideal operational amplifier (op-amp)?
• What is the purpose of a transistor in a circuit?
• What does the term "bandwidth" refer to in analog electronics?
• Which of the following is a primary source of energy for most power plants?
• Which type of power plant produces electricity by harnessing the energy of falling or flowing water?
• Which of the following is not a component of a steam power plant?
• Which of the following power plants relies on the fission of uranium atoms to generate heat?