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Technological Knowledge MCQs

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This Technological Knowledge MCQs page is designed for aspirants who want focused, exam-oriented practice with clear answers and explanations. Use these questions to revise key concepts, test your memory, improve accuracy, and build confidence for CSS, PMS, PCS, FPSC, PPSC, SPSC, KPPSC, BPSC, and other competitive examinations.

Technological Knowledge MCQs with Answers

Review the latest approved Technological Knowledge multiple choice questions below. Each question is arranged for quick reading, answer checking, and concept revision so candidates can practice regularly without wasting time on repeated or low-quality material.

Which activation function is commonly used in hidden layers of deep neural networks due to its ability to mitigate vanishing gradient problems?

  • A. Sigmoid
  • B. Tanh
  • C. ReLU
  • D. Softmax
Explanation:
ReLU (Rectified Linear Unit) is popular for hidden layers because it accelerates convergence by avoiding vanishing gradients.

In machine learning, what does "overfitting" refer to?

  • A. The model performs well on training data but poorly on new data
  • B. Model generalizes well to unseen data
  • C. Insufficient training iterations
  • D. A data normalization technique
Explanation:
Overfitting means the model has learned noise or specific patterns of training data and fails to generalize to new data.

Which of the following is an example of a supervised learning algorithm?

  • A. K-Means clustering
  • B. Decision Tree
  • C. Apriori algorithm
  • D. PageRank algorithm
Explanation:
A decision tree is a supervised learning method for classification/regression.

What does "API" stand for, and what is its primary purpose?

  • A. Automated Programming Interface, for automated coding
  • B. Application Programming Interface; to allow software components to communicate
  • C. Applied Password Interface; for securing applications
  • D. Application Platform Integration, for platform customization
Explanation:
API stands for Application Programming Interface, and it allows different software applications to interact with each other.

In a version control system like Git, what does "branching" allow a developer to do?

  • A. Combine two code files
  • B. Work on separate features concurrently
  • C. Prevent others from accessing the repository
  • D. Automatically merge code changes
Explanation:
Branching creates an isolated line of development for features or experiments.

Which of these is NOT one of the three primary service models of cloud computing?

  • A. Infrastructure as a Service (IaaS)
  • B. Platform as a Service (PaaS)
  • C. Container as a Service (CaaS)
  • D. Software as a Service (SaaS)
Explanation:
The main models are IaaS, PaaS, and SaaS; CaaS is not a standard term.

What is the main purpose of the Domain Name System (DNS) in computer networks?

  • A. Encrypting data on the network
  • B. Translating domain names to IP addresses
  • C. Routing data packets
  • D. Synchronizing time among servers
Explanation:
DNS translates human-readable domain names to IP addresses used by computers.

Which of the following is a widely used virtualization platform for managing virtual machines on cloud infrastructure?

  • A. Docker Engine
  • B. Kubernetes
  • C. Hyper-V
  • D. Apache Hadoop
Explanation:
Hyper-V (by Microsoft) is a hypervisor for creating and managing virtual machines.

What does the term "bandwidth" refer to in networking?

  • A. The number of concurrent connections
  • B. The maximum rate of data transfer across a given path
  • C. The frequency range of a wireless signal
  • D. The number of devices on a network
Explanation:
Bandwidth is the maximum data transfer rate of a network path.

Which network topology feature is characteristic of a star network?

  • A. Every node is connected to exactly two others in a ring
  • B. All nodes share a common bus
  • C. All nodes are connected to a central hub
  • D. Nodes form a mesh with multiple paths
Explanation:
In a star topology, each node connects to a central hub or switch for communication.

Technological Knowledge MCQs for CSS Preparation

Practice Important Questions

This section provides important Technological Knowledge MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams. Regular practice helps aspirants identify common question patterns, revise essential facts, and improve their command over the subject.

Improve Conceptual Understanding

Each MCQ is designed to strengthen understanding of key concepts and improve the analytical thinking required in exams. Instead of memorizing isolated answers, candidates can use the explanation area to understand why the correct option is suitable and why the other choices may be misleading.

Exam-Oriented Preparation

These MCQs follow a competitive-exam style approach, helping aspirants practice relevant questions and improve performance. The format supports quick revision before tests, topic-wise preparation during study sessions, and self-assessment after completing a subject chapter or syllabus area.

Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, PCS, FPSC, PPSC, SPSC, KPPSC, BPSC, and similar exams where objective questions require accuracy, speed, and strong retention. Practicing with subject-wise MCQs can help candidates build confidence and reduce mistakes under time pressure.

For best results, attempt the Technological Knowledge MCQs first without checking the answer, then review the correct option and explanation carefully. Revisit difficult questions, use the search option to find related terms, and start the quiz mode when you want a more active practice session. This method helps turn MCQ practice into structured revision rather than random guessing.