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MCQ Practice

Technological Knowledge MCQs

Which layer of the OSI model handles data encryption and session management?

  • A. Network
  • B. Transport
  • C. Application
  • D. Presentation
Explanation:
The Presentation layer (layer 6) deals with data encryption and formatting.

In cloud security, what is IAM used for?

  • A. Data encryption
  • B. Identity and Access Management
  • C. Network routing
  • D. Performance monitoring
Explanation:
IAM (Identity and Access Management) controls user identities and permissions in cloud environments.

What protocol underlies most VPN technologies for secure remote connections?

  • A. SMTP
  • B. IPsec
  • C. HTTP
  • D. FTP
Explanation:
IPsec is widely used to create secure virtual private network connections at the IP layer.

Which of the following is an example of a data warehousing platform?

  • A. Hadoop HDFS
  • B. Amazon Redshift
  • C. MySQL Workbench
  • D. SQLite
Explanation:
Amazon Redshift is a cloud data warehouse service for analytics.

Which version control operation merges changes from one branch into another?

  • A. Fork
  • B. Clone
  • C. Merge
  • D. Commit
Explanation:
Merge integrates changes from one branch into another branch.

In data storage, what does SSD stand for?

  • A. Secure Storage Drive
  • B. Solid State Drive
  • C. Standard Server Disk
  • D. System Storage Device
Explanation:
SSD stands for Solid State Drive, a fast storage device with no moving parts.

Which of these best describes 'serverless computing'?

  • A. Deploying applications without a server
  • B. Developing servers using code
  • C. Using managed functions instead of servers
  • D. Only using physical servers
Explanation:
Serverless means using cloud-provided functions (FaaS) without managing servers.

What does a virtualization hypervisor do for virtual machines?

  • A. Provides storage space
  • B. Emulates hardware and runs multiple VMs
  • C. Encrypts the OS
  • D. Installs antivirus on VMs
Explanation:
A hypervisor emulates hardware to create and run multiple virtual machines on one host.

Which Linux command is used to monitor real-time system resource usage (CPU, memory)?

  • A. ls
  • B. grep
  • C. top
  • D. mv
Explanation:
The 'top' command displays real-time system metrics such as CPU and memory usage.

What type of network topology features a single central point with all devices connected to it?

  • A. Bus topology
  • B. Star topology
  • C. Ring topology
  • D. Mesh topology
Explanation:
A star topology connects all nodes to a central hub or switch.