quiz

ISO/OSI Reference Model

1. What unit of measurement is commonly associated with the Physical Layer?

  • A) Segments
  • B) Packets
  • C) Frames
  • D) Bits
D) Bits Explanation

2. Which OSI layer would you associate with the protocols DNS, HTTP, and SMTP?

  • A) Data Link Layer
  • B) Application Layer
  • C) Network Layer
  • D) Transport Layer
B) Application Layer Explanation

3. How many layers are there in the ISO/OSI model?

  • A) Five
  • B) Four
  • C) Seven
  • D) Six
C) Seven Explanation

4. In the OSI model, which layer handles data encryption and decryption?

  • A) Application Layer
  • B) Presentation Layer
  • C) Session Layer
  • D) Transport Layer
B) Presentation Layer Explanation

5. Which layer of the OSI model is involved with MAC addresses and switches?

  • A) Data Link Layer
  • B) Physical Layer
  • C) Network Layer
  • D) Transport Layer
A) Link Layer Explanation

6. Which of the following protocols operates at the Transport Layer of the OSI model?

  • A) IP
  • B) TCP
  • C) FTP
  • D) DNS
B) TCP Explanation

7. SSL/TLS protocols operate at which layer of the OSI model?

  • A) Data Link Layer
  • B) Transport Layer
  • C)  Session Layer
  • D) Presentation Layer
D) Presentation Layer Explanation

8. The Physical Layer deals with which type of transmission medium?

  • A) Fiber optic
  • B) Wireless signals
  • C) Infrared and optical signals
  • D)  All of the above
D) All of the above Explanation

9. Which layer of the OSI model is responsible for end-to-end communication and error-free delivery of data?

  • A) Application Layer
  • B) Presentation Layer
  • C) Session Layer
  • D) Transport Layer
D) Transport Layer Explanation

10. Which functions are included in the session layer’s management of sessions?

  • A) User login and logoff functions
  • B)  Data encryption and decryption
  • C)  Packet forwarding
  • D)  Signal modulation
A) User logon and logoff functions Explanation

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