Questions on OSI Model

Jan 11 • Resources • 23086 Views • 12 Comments on Questions on OSI Model

Questions on OSI Reference Model

OSI Reference Model is the model which describe the network system architecture of 7 layers. These seven layers are named as Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer and application layer. There is a hierarchy of functions which is done by these layers. One layer assist its upper layer and at the same time is being served by the layer just below it. This whole process helps in establishing a communication system. The OSI Reference model is set for the efficient transmission of data. Lets have a look at types of questions on OSI Model which are being asked-

OSI  Model

OSI Reference Model

Questions on OSI Model with answers-

Q1- What does the acronym OSI stand for ?
Ans- Open System Interconnection. The OSI reference model is used as a guide for teaching and understanding the way networks operate.

Q2- What are the layers of the OSI model?
Ans- Application, Presentation, Session, Transport, Network, DataLink, Physical. An easy way to remember the order of the layers is: A-ll  P-eople  S-eem  T-o  N-eed D-ata  P-rocessing .

Q3- At which layer of the OSI model is a path decision made based upon an IP address ?
Ans- Network. At the network layer, data is transported in the form of a packet.

Q4- Which of the following takes place at the presentation layer ?
Ans- Encryption. The presentation layer encrypts data to be sent across the network, and decrypts it so that it can be accessed by the application layer on the receiving end.

Q5- Which is NOT a function of the Application layer ?
Ans- Windowing. Quality of Service and user authentication are also handled by the application layer.

Q6- Which layer of the OSI model contains the LLC sublayer and the MAC sublayer ?
Ans- Data Link Layer. The LLC and MAC sublayers allow for different layer 2 protocols to be used, such as Ethernet, Token Ring and FDDI.

Q7- How can data be transported in different layers ?
Ans- Data is transported in bits at the Physical layer . A bit is simply a binary digit. Either a 0 or a 1 . Data is transported in segments at the Data Link layer . At the data link layer, user data is encapsulated in a frame.

Q8- What is the function of Network Layer ?
Ans- The network layer establishes the route between the sender and receiver across switching points, which are typically routers. The most ubiquitous example of this layer is the IP protocol in TCP/IP. IPX, SNA and AppleTalk are other examples of routable protocols, which means that they include a network address and a station address in their addressing system. This layer is also the switching function of the dial-up telephone system. If all stations are contained within a single network segment, then the routing capability in this layer is not required.

Q9- The link for a switch connection is isolated from other data traffic except for what type of messages?
Ans- Following are the types of messages-
i. Multicast Messages – Message are sent to a specific group of hosts on the network.
ii. Broadcast Messages – Message is sent to all devices connected to the LAN.

Q10- Why are the layers of the OSI model important to the network administrator?
Ans- The Layers of OSI Model are important for the network administrator in the following manner-
i. To troubleshoot network problems by verifying functionality of each layer.
ii. In many cases it requires the network administrator to isolate at what layer the network problem   occurs.

Learn more, get the questions on OSI Model in pdf, Questions on OSI Model with answers pdf

If you have any idea or query about the OSI Reference Model, Put it in the comment section at the end of the article.



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12 Responses to Questions on OSI Model

  1. Anonymous says:
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  6. ranjith n r says:

    i need all FAQ in computer hardware, networking, server, OS, CCNA, CCNP, +cloud in pdf formate it sud contain complete informatiom about topics

  7. Thippu swamy H.R says:

    what are the most important questions in ccna networking

  8. melesew mossie says:

    To Calculate Subnetting,network id,hostid,router address,firstvalid host,last valid host,host range?

  9. oishi chatterjee says:

    This article contains all the important portions of OSI model and all the questions cover all the layers of this model which is really helpful stuff for all of us.
    Everyone must go through this and know OSI model in a complete way.

  10. Siddhant Tripathi says:

    OSI or the Open System Interconnect is an obsolete networking model which is a 7 layered structure designed to facilitate a stratified approach towards the transmission and reception of data (in any form) over any physical / non-physical media.

  11. sakshi chaudhary says:

    OSI model is the a Open System Interconnection reference model as it deals with connecting open systems for communication.above questions will help to understand OSI model in detail.

  12. himanshu verma says:

    OSI model is the initial model of networking.Through the OSI model we can easily learn the networking process.These question help to understand the Osi model.

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