CCNA Exam 200-301 Practice Quiz - Network FundamentalsWelcome to CCNA Exam 200-301  Practice Quiz on OSI model. This quiz section provides you with multiple-choice questions with a single answer or multiple answers.

This MCQ quiz may be useful to pass CCNA Exam 200-301.

CCNA  300-201 Practice Quiz- OSI Model


1. Which of the following are the functions of the network layer of the OSI model?

  1. Encryption and Compression
  2. Error detection and correction
  3. Delivery of packet from source to destination.
  4. All of the above

C is the correct answer.

2. Which of the network models are always discussed to understand the functionality of the network? ( Choose any two)

  1. OSI Model
  2. ISO Model
  3. TCP/IP Model
  4. TCP/UDP Model

A and C are the correct answers.

3. ___________ layer of the OSI model is responsible for the exchange of data frames between the hosts through communication media.

  1. Physical layer
  2. Network layer
  3. Transport layer
  4. Application layer

A is the correct answer.

4. The PDU formed at the network layer of the OSI model is called ______.

  1. Segment
  2. Packet
  3. Frame
  4. Bits

B is the correct answer.
5. The PDU formed at Transport layer of OSI model is called _______ .

  1. Segment
  2. Packet
  3. Frame
  4. Bits

A is the correct answer.
6. The PDU formed at the data link layer of the OSI model is called _______.

  1. Segment
  2. Bits
  3. Packet
  4. Frame

D is the correct answer.
7. _______ is also termed as a logical address.

  1. Port address
  2. IP address
  3. MAC address
  4. None of the above

B is the correct answer.

8. The transport layer of the OSI model is responsible for the host to host communication. In addition to that, It is also responsible for _____, ________ and _________. ( Choose any three)

  1. Logical addressing
  2. Segmentation
  3. Flow control
  4. Port addressing
  5. Physical Addressing

B, C, and D  are the correct answers.
9. ________ and ______ is the important protocols of transport layer of OSI model.

  1. TCP, UDP
  2. TCP, IP
  3. HTTP, HTTPS
  4. DNS, DHCP

A is the correct answer.
10. _________ is a network device that works at layer 3 of the OSI model.

  1. Bridge
  2. Router
  3. Ethernet hub
  4. Ethernet switch

B is the correct answer.

11. Which of the following is the transport layer protocol of the TCP/IP protocol suite? (Choose any two)

  1. SMTP
  2. TCP
  3. FTP
  4. HTTP
  5. UDP

B and E are the correct answers.

12. Which of the following are the Application layer protocols of the TCP/IP protocol suite? (Choose any three)

  1. TCP
  2. HTTP
  3. TFTP
  4. IP
  5. DHCP

B, C, and E are the correct answers.
13. Which layer of the OSI model is included in the Internet layer of the TCP/IP model?

  1. Application layer.
  2. Transport layer
  3. Network layer
  4. Datalink layer

C is the correct answer.
14. Which of the following are the sub-layers of the data link layer of the OSI model?

  1. TCP and UDP sub-layer
  2. LLC and MAC sub-layer
  3. TCP and IP sub-layer
  4. None of the above

B is the correct answer.

15. Which of the following statements correctly describe the process of data encapsulation in the OSI model? (Choose any two)

  1. The presentation layer translates the data into a common format and performs encryption and compression.
  2. The physical layer adds the physical address to the data frames and transmits them through the communication media.
  3. The transport layer splits the data into smaller chunks called segments and adds TCP or UDP header before passing it to the lower layer.
  4. All of the above statement is correct.

A and C  are the correct answers.

16. The following statement describes the characteristics of UDP protocol of the OSI model (Choose any three)

  1. UDP is considered to be connectionless because it does not establish any dedicated connection between the hosts before sending the segments.
  2. UDP is more reliable as compared to the TCP, as it receives ACK, for every segment, it sends to the receiver.
  3. FTP uses the UDP protocol to transfer files.
  4. It is mostly used in real-time communication
  5. It doesn’t guarantee the delivery of a segment to the destination.

A, D, and E are the correct answers.
17. Which of the following layers of the OSI model is responsible for user interaction?

  1. Layer 4
  2. Layer 5
  3. Layer 6
  4. Layer 7

D is the correct answer.

18. Which of the following is not correct for the OSI model?

  1. OSI model is considered as a reference model.
  2. It is developed by ISO and consists of 7 layers.
  3. Internet works on the OSI model.
  4. It is considered to be an architectural model for inter-computer communication.

C is the correct answer.

19. Router operates at ______ ; ethernet hub operates at _________; bridge operates at _______; web browser operates at _______ layers of OSI model respectively.

  1. 3,1,7,2
  2. 3,2,1,7
  3. 3,1,2,7
  4. 2,1,7,3

C is the correct answer.

20. Which of the following layers of the OSI model have the characteristics: acknowledgment, sequencing, and flow control.

  1. Layer 7
  2. Layer 6
  3. Layer 5
  4. Layer 4

D is the correct answer.


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