Selected MCQ

Current Question
What is the main purpose of a type-1 (bare-metal) hypervisor?
  • A. Runs on an OS to host VMs
  • B. Directly runs on hardware to host VMs
  • C. Monitors network traffic
  • D. Provides antivirus protection
Correct Answer: B
Explanation:
A type-1 hypervisor runs directly on hardware (bare metal) to host virtual machines.
Related Question 1
What is the main purpose of penetration testing?
  • A. Certify devices
  • B. Find and exploit vulnerabilities in a system
  • C. Increase network speed
  • D. Encrypt data
Correct Answer: B
Explanation:
Penetration testing involves ethically attacking a system to find weaknesses.
Related Question 2
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
Correct Answer: B
Explanation:
DNS translates human-readable domain names to IP addresses used by computers.
Related Question 3
What is the main goal of blockchain's consensus mechanism?
  • A. To ensure every node has the same data
  • B. To shuffle tokens quickly
  • C. To encrypt all data
  • D. To generate a random number
Correct Answer: A
Explanation:
Consensus mechanisms such as PoW/PoS ensure that all nodes agree on a single history of transactions.
Related Question 4
What is the main idea of edge AI?
  • A. AI on mobile robots
  • B. Using AI algorithms directly on edge devices (e.g. cameras)
  • C. AI only in the cloud
  • D. AI in graphics cards
Correct Answer: B
Explanation:
Edge AI runs AI inference on devices near data sources, reducing latency and bandwidth usage.
Related Question 5
What is the purpose of a VPN?
  • A. To improve the Wi-Fi signal
  • B. To securely encrypt and route internet traffic
  • C. To store backup data online
  • D. To speed up downloads
Correct Answer: B
Explanation:
A VPN encrypts internet traffic and routes it through a secure server, protecting privacy.