Computer — All MCQs

Correct Answer: B

Charts can mislead if the scale is distorted or labels are overwhelming, making differences appear larger or smaller than they actually are.

Correct Answer: B

Preemptive scheduling allows the CPU to pause a running process if a higher-priority process needs it. This ensures important tasks are handled promptly.

Correct Answer: B

In graph theory, a node is also called a vertex. Vertices represent points or entities in a graph. Edges connect vertices, showing relationships.

Correct Answer: B

Integrity ensures that data or evidence remains accurate and unaltered. If evidence is accidentally changed, its integrity is compromised.

Correct Answer: B

Classification in satellite image analysis means assigning labels to different areas or objects, such as identifying roads, buildings, and vegetation.

Correct Answer: B

In NLP and machine learning, a gradient represents the rate of change of the loss function with respect to the model's parameters (weights). It guides optimization algorithms like gradient descent during training.

Correct Answer: B

In a TCP connection, communication happens via segments. The number of messages indicates how many segments were sent and received, providing reliable transmission details.

Correct Answer: A

The ls command in Linux is used to list all files and directories in the current directory. cd changes directories, mkdir creates a directory, and rm deletes files.

Correct Answer: B

Round Robin (RR) is a CPU scheduling algorithm that assigns each process a fixed time slice called a time quantum. It is a preemptive scheduling algorithm.

Correct Answer: D

A flowchart visually represents an algorithm using both diagrams (layout) and standard symbols (ovals, rectangles, diamonds) to map the steps of a process.

Correct Answer: B

The Waterfall model is a linear and sequential SDLC approach, where each phase (requirements, design, implementation, testing, deployment) must be completed before the next begins.

Correct Answer: B

Time complexity describes the amount of time an algorithm takes to run, typically measured as a function of the input size (representing execution speed). Memory usage is measured by space complexity.

Correct Answer: C

Corrective maintenance refers to identifying and fixing bugs or errors discovered by users after the software has been released.

Correct Answer: B

Transformers are a type of neural network architecture primarily used in Natural Language Processing (NLP) for tasks like translation, text generation, and summarization. Examples include GPT and BERT.

Correct Answer: B

A Stack is a linear data structure that follows the LIFO (Last In, First Out) principle, where elements are added and removed from the same end.

Correct Answer: B

A Queue is a data structure that follows the FIFO (First In, First Out) principle, where the first element added is the first one to be removed.

Correct Answer: C

Ethical data use involves respecting user privacy and following legal and moral guidelines, which includes protecting user information from unauthorized access.

Correct Answer: C

Data authentication is a security process that verifies whether data originates from a valid and trusted source.

Correct Answer: B

Binary search is an efficient search algorithm, but it requires the data to be sorted in ascending or descending order beforehand.

Correct Answer: C

In most programming languages, boolean values are represented numerically, with false treated as 0 and true treated as 1.