OSI Model MCQs : This section focuses on "OSI Model" in Computer Networks. These Multiple Choice Questions (MCQ) should be practiced to improve the Computer Network skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.
1. In OSI model, OSI stands for?
A. Open Source Interconnection
B. Open System Interconnection
C. O-System Interconnection
D. O-Source Interconnection
Explanation: The International Standard Organization has a well-defined model for Communication Systems known as Open System Interconnection, or the OSI Model
2. Which of the following is Layer-7?
A. Presentation Layer
B. Session Layer
C. Application Layer
D. Transport Layer
Explanation: Application Layer (Layer-7) : This is where the user application sits that needs to transfer data between or among hosts.
3. Which layer helps to understand data representation in one form on a host to other host in their native representation?
A. Application Layer
B. Presentation Layer
C. Session Layer
D. Transport Layer
Explanation: Presentation Layer (Layer-6) : This layer helps to understand data representation in one form on a host to other host in their native representation.
4. HTTP is an example of?
A. Session Layer
B. Presentation Layer
C. Data Link Layer
D. Application Layer
Explanation: For example : HTTP, file transfer application (FTP) and electronic mail etc.
5. Which layer helps to uniquely identify hosts beyond the subnets and defines the path which the packets will follow or be routed to reach the destination?
A. Physical Layer
B. Data Link Layer
C. Network Layer
D. Transport Layer
Explanation: Network Layer (Layer-3) − This layer helps to uniquely identify hosts beyond the subnets and defines the path which the packets will follow or be routed to reach the destination.
6. Physical Layer is Layer-1.
A. Yes
B. No
C. Can be yes or no
D. Can not say
Explanation: Yes, Physical Layer is Layer-1.
7. How many layers does OSI Reference Model has?
Explanation: The OSI Model has the following seven layers.
8. The physical layer concerns with
A. bit-by-bit delivery
B. process to process delivery
C. application to application delivery
D. None of the above
Explanation: The physical layer concerns with process to process delivery.
9. Bits can be send over guided and unguided media as analog signal by
A. digital modulation
B. amplitude modulation
C. frequency modulation
D. phase modulation
Explanation: Bits can be send over guided and unguided media as analog signal by digital modulation.
10. The network layer is responsible for carrying data from one host to another.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
Explanation: True, The network layer is responsible for carrying data from one host to another.