Layer 7 = Application Layer, Layer 6 = Presentation Layer, Layer 5 = Session Layer, Layer 4 = Transport Layer, Layer 3 = Network Layer, Layer 2 = Data Link Layer, Layer 1 = Physical Layer.Ģ8. Choose the correct layer numbers and names of the OSI model below.Ī) Layer 7 – Application Layer, Layer 6 – Presentation Layerī) Layer 5 – Session Layer, Layer 4 – Transport LayerĬ) Layer 3 – Network Layer, Layer 2 – Data Link Layer, Layer 1 – Physical LayerĮxplanation: The matching order is as follows. A layer of the OSI model on one system communicates with the _ layer of its peer system.Įxplanation: So, any given OSI layer can communicate with the same layer of its peer node.Ģ7. In the OSI model, each layer gives services or data to the _ layer.Įxplanation: In other words, the upper layers always receive services or data from the below layers.Ģ6. Each layer of the OSI model receives services or data from a _ layer.Įxplanation: Layers receive data or services from the below layers.Ģ5. How many layers are there in the OSI reference model of networking?Ģ4.
#AD HOC NETWORK MAC ADDRESS ISO#
It is ISO (International Standards Organization) that developed standards for operating OSI model layers in the year 1984.Ģ3. Who developed standards for the OSI reference model?Ī) ANSI – American National Standards Instituteī) ISO – International Standards OrganizationĬ) IEEE – Institute of Electrical and Electronics Engineersĭ) ACM – Association for Computing MachineryĮxplanation: Yes. The acronym OSI stands for _ in computer networking.Įxplanation: OSI refers to Open Systems for Interconnection.Ģ2. Three or more devices share a link in _ connection.Ģ1. A _ set of rules that governs data communication.Ģ0. A _ is the physical path over which a message travels.ġ9. Communication between a computer and a keyboard involves _ transmission.ġ5. The structure or format of data is called _ġ4. In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are _ġ3. The IETF standards documents are called _ġ2. Frame relay, Ethernet and ATM are some examples of multipoint connections.ġ1. Three or more devices share a link in _ connection.Įxplanation: A multipoint communication is established when three or many network nodes are connected to each other. Each layer in the network model has a protocol set, for example, the transport layer has TCP and UDP protocols.ġ0. A _ set of rules that governs data communication.Įxplanation: In communications, a protocol refers to a set of rules and regulations that allow a network of nodes to transmit and receive information. A switch can’t operate as a host, but as a central device which can be used to manage network communication.ĩ. Which of this is not a network edge device?Įxplanation: Network edge devices refer to host systems, which can host applications like web browser. FCC is responsible for regulating all interstate communications originating or terminating in USA. Which organization has authority over interstate and international commerce in the communications field?Įxplanation: FCC is the abbreviation for Federal Communications Commission.
Mediums can be guided (wired) or unguided (wireless).ħ. A _ is the physical path over which a message travels.Įxplanation: Messages travel from sender to receiver via a physical path called the medium using a set of methods/rules called protocol. It was the first network to be implemented which used the TCP/IP protocol in the year 1969.Ħ. Another example would be of the mouse where the data flows from the mouse to the computer only.Įxplanation: ARPANET stands for Advanced Research Projects Agency Networks.
Communication between a computer and a keyboard involves _ transmission.Įxplanation: In simplex transmission, data flows in single direction which in this case refers to the data flowing from the keyboard to the computer. In programming languages, syntax of the instructions plays a vital role in designing of the program.Ĥ. Semantics defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation. The structure or format of data is called _Įxplanation: The structure and format of data are defined using syntax.
For example, in the Internet layer, the IP header is added over the TCP header on the data packet that came from the transport layer.ģ. In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are _Įxplanation: Each layer adds its own header to the packet from the previous layer. The IETF standards documents are called _Įxplanation: RFC stands for Request For Comments and they are documents that describe methods, behaviors, research, or innovations applicable to the working of the Internet.Ģ.
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