🏠 Home
← Back Start Quiz
MCQ Practice

Technological Knowledge MCQs

Which of the following is NOT a NoSQL database type?

  • A. Document store
  • B. Graph database
  • C. Relational table
  • D. Key-value store
Explanation:
NoSQL includes document, graph, and key-value stores; a relational table is an SQL table.

Which data structure uses the LIFO (Last In First Out) access method?

  • A. Queue
  • B. Stack
  • C. Graph
  • D. Hash table
Explanation:
A stack uses Last-In-First-Out order for insertion and removal.

What is a primary function of a CDN (Content Delivery Network)?

  • A. To store user credentials
  • B. To distribute content globally with low latency
  • C. To encrypt all network traffic
  • D. To provide cloud compute instances
Explanation:
A CDN replicates content to servers around the world, speeding up access for users.

Which tool is commonly used for container orchestration in IT environments?

  • A. Docker
  • B. Kubernetes
  • C. Ansible
  • D. Terraform
Explanation:
Kubernetes is widely used for orchestrating containers at scale.

What does ACID stand for in database transactions?

  • A. Atomicity, Consistency, Isolation, Durability
  • B. Accessibility, Concurrency, Integrity, Durability
  • C. Authentication, Control, Integrity, Durability
  • D. Atomicity, Connectivity, Integrity, Durability
Explanation:
ACID stands for Atomicity, Consistency, Isolation, and Durability in database transactions.

Which of the following is an example of a relational database management system (RDBMS)?

  • A. MongoDB
  • B. Cassandra
  • C. MySQL
  • D. Redis
Explanation:
MySQL is a popular relational database system.

What is the main advantage of object-oriented programming (OOP) in software development?

  • A. Faster execution speed
  • B. Better memory usage
  • C. Encapsulation and code reuse
  • D. Using less code
Explanation:
OOP provides encapsulation and promotes code reuse through classes and objects.

In an IPv4 address, how many bits are there in total?

  • A. 16 bits
  • B. 32 bits
  • C. 64 bits
  • D. 128 bits
Explanation:
IPv4 addresses consist of 32 bits.

What does 'IoT' stand for and what does it imply?

  • A. Internet of Things; interconnecting everyday devices
  • B. Internal Operating Technology: secure internal network
  • C. Inter-Orbital Telecommunications; satellite communication
  • D. Integrated Optical Transistors; chip technology
Explanation:
IoT stands for Internet of Things, meaning networked everyday devices.

Which of these best describes 'edge computing' in the context of IT infrastructure?

  • A. Processing data near its source to reduce latency
  • B. Using more bandwidth on the central cloud
  • C. Encrypting all edge devices by default
  • D. Extending battery life of mobile devices
Explanation:
Edge computing means processing data close to where it is generated to reduce latency.