INTERVIEW QUESTIONS NETWORKING DETAILS

Question: Why is OSI model layered?

Answer: It provides an structural approach to troubleshoot an issue.

It provides an structural approach to troubleshoot an issue.

Source: CoolInterview.com

OSI model is the structured layered model, made to solve different issues and problem.It further helps in dividing and differentiating the different protocols so that it could be developed by specialized group. Source: CoolInterview.com

It provides an structural approach to troubleshoot an issue.

Source: CoolInterview.com

Locating computer systems on an internetwork is an essential component of any network system – the key to this is addressing.
Every NIC card on the network has its own MAC address. In this example we have a computer with the MAC address 000.0C12.3456. The MAC address is a hexadecimal number so the numbers in this address here don’t go just from zero to nine, but go from zero to nine and then start at "A" and go through "F". So, there are actually sixteen digits represented in this counting system. Every type of device on a network has a MAC address, whether it is a Macintosh computer, a Sun Work Station, a hub or even a router. These are known as physical addresses and they don’t change.
Logical addresses exist at Layer 3 of the OSI reference model. Unlike link-layer addresses, which usually exist within a flat address space, network-layer addresses are usually hierarchical. In other words, they are like mail addresses, which describe a person’s location by providing a country, a state, a zip code, a city, a street, and address on the street, and finally, a name. One good example of a flat address space is the U.S. social security numbering system, where each person has a single, unique security number.
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To assist in data transfer between desperate hosts. Source: CoolInterview.com

The layered approach of OSI model is to simplify the internetwork communication. In this approach the complete model is divided into 7 layers and each layer do a specific job and utilize the services provided by lower layer and provide services to upper layer.Due to layered approach overall model get simplified and network designer can concentrate on respective layer only irrespective of the layer above or below it as each layer communicate with each other using messages. Source: CoolInterview.com

OSI model is the structured layered model, made to solve different issues and problem.It further helps in dividing and differentiating the different protocols so that it could be developed by specialized group Source: CoolInterview.com

OSI(Open System Interconnection) is a model designed by ISO to make data communication smoother between systems/networks.
OSI model has 7 layers: 1.Application Layer,
2. Presentation Layer,
3. Session Layer,
4. Transport Layer,
5. Network Layer,
6. Data Link Layer,
7. Physical Layer.

With the help of these layer data is spliited into packets or frames and vice versa and then transmitted to network through lowermost layer(Physical Layer). Source: CoolInterview.com

OSI-means Open Systems Interconnection Reference Model.This model defines networking framework for implementing protocols on seven layers. Source: CoolInterview.com

OSI-means Open Systems Interconnection Reference Model.This model defines networking framework for implementing protocols on seven layers.
Source: CoolInterview.com

OSI-means Open Systems Interconnection Reference Model.this model defines networking framework for implementing protocols on seven layer. Source: CoolInterview.com

osi model is hierchical and same benifit can i apply to all layer model the primary purpose of all such model is to different network interoperate. Source: CoolInterview.com

OSI Layers helps us to have better understanding of different protocols.It also helps us to communicate between two devices. Source: CoolInterview.com

OSI model is layered because layered approach simplifies the understanding of communication between two peers. Layered approach also helps in troubleshooting problems. Source: CoolInterview.com

OSI provides an structural approach to troubleshooting the issue and it helps to improve in the network devices for betterment work.
Source: CoolInterview.com

all network system is depend on (open system interconnect)osi layer Source: CoolInterview.com

OSI model layered was introduced by ISO, International Organistion for Standardisation, the main purpose of this organisation was to communicate different network operating system in a network . Eg Windows should communicate with linux. Source: CoolInterview.com

OSI the seven layer model consists of application,presentation,session,transport,network, datalink and physical layer .This model is layered because of the functionality each layer is providing number of protocols like SMTP,FTP,TFTP,RTP,ARP,RARP etc as per the IEEE standards. additionally RFC has different set of rules and regulations that imply that every individual layer should be segmented.Therefore the
OSI model represents structured hirarchy of different layers Source: CoolInterview.com

osi model is layered bcs it's provide structured layer model and it helps to resolve the problems of protocols and helps to dividing and differentiate the different protocols.This is good model for the networking....... Source: CoolInterview.com

IT WAS DESIGNED TO AID UNDERSTANDING OF HOW NETWORK SYSTEM FUNCTION(IN TERMS OF BOTH HARDWARE AND SOFTWARE COMPONENTS). Source: CoolInterview.com

Correct Answer.The OSI model layer is the processing to the data transfer of destnation machine. Source: CoolInterview.com

Locating computer systems on an internetwork is an essential component of any network system ? the key to this is addressing.
Every NIC card on the network has its own MAC address. In this example we have a computer with the MAC address 000.0C12.3456. The MAC address is a hexadecimal number so the numbers in this address here don?t go just from zero to nine, but go from zero to nine and then start at "A" and go through "F". So, there are actually sixteen digits represented in this counting system. Every type of device on a network has a MAC address, whether it is a Macintosh computer, a Sun Work Station, a hub or even a router. These are known as physical addresses and they don?t change.
Logical addresses exist at Layer 3 of the OSI reference model. Unlike link-layer addresses, which usually exist within a flat address space, network-layer addresses are usually hierarchical. In other words, they are like mail addresses, which describe a person?s location by providing a country, a state, a zip code, a city, a street, and address on the street, and finally, a name. One good example of a flat address space is the U.S. social security numbering system, where each person has a single, unique security number.



Source: CoolInterview.com

To communicate between different operating system,we need to layered the OSI reference modle.
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OSI model is layered in order to give structured framework for simplifying internetwork communication.Basically OSI model consists of 7 layers where higher layers uses the services provided by the lower layer.In case any problems comes,particular layer is identified and troubleshooting is done without affecting the other layers. Source: CoolInterview.com

OSI IS A Structured model without model network cant work properly so in OSI MODEL Have some semantics and protocols so that data can deliverd secure and in proper way.In this model each layers has own functions. Source: CoolInterview.com

The purpose of the OSI model layered is "To explain how the protocols and data is travelled or transfer within the network". Source: CoolInterview.com

The layered approach of OSI model is to simplify the internetwork communication. In this approach the complete model is divided into 7 layers and each layer do a specific job and utilize the services provided by lower layer and provide services to upper layer.Due to layered approach overall model get simplified and network designer can concentrate on respective layer only irrespective of the layer above or below it as each layer communicate with each other using messages.
OSI has 7 layers:-
1. Physical
2. Data link
3. Network
4. Transport
5. Session
6. Presentation
7. Application Source: CoolInterview.com

OSI Model: OSI model is a structured layer model which defines the use of Devices, protocols, etc in addition; it provides the easy way of troubleshooting of the Network related issues. Source: CoolInterview.com

OSI Model is the way of explain process of data transmiting and receiving from one pc to another pc on the network. Source: CoolInterview.com

It is a conceptual,structured, 7 layerd reference model shows how the data is actually trasmitted from source to destination through internetworking devices. Source: CoolInterview.com

The OSI model is used to describe what task a protocol suite perform as you explore.How data moves from user interfaceof a transmitter down to its physical network access Source: CoolInterview.com

Layers of OSI reference model:
OSI reference model consists of seven layers. The layers name of OSI mode is given below:

7. Application
6. Presentation
5. Session
4. Transport
3. Network
2. Data link
1. Physical



DATA untis of OSI model
Data unit..............LayerName
Data............ Application layer
Data............Presentation layer
Data.................Session layer
Segment........... Transport layer
Packet/Datagram.... Network layer
Frame ............ Data link layer
Bit.................Physical layer


Source: CoolInterview.com

Open system Interconnection is a globally standadrzed model which describes common rules in Networking Source: CoolInterview.com

OSI stands for open system interconnection its devloped by ISO(international standared orgnization)devloped in 1984.osi reference model which is use bto communicate vender oriented networking model & vender independent networking it has seven layer Source: CoolInterview.com

OSI STANDS FOR (OPEN SYSTEM INTERCONNECTION )IT IS DEVOLVED BY ISO (INFORMATION STANDARD ORGANIZATION )DESCRIBE THE FLOW OF INFORMATION ONE COMPUTER TO ANOTHER COMPUTER OSI MODEL ALSO CALLED ISO REFERENCE MODEL . IT IS A CONCEPTUAL MODEL THAT HAVE SEVEN LAYER.
1-PHYSICAL LAYER
2-DATA LINK LAYER
3-NETWORK LAYER
4-TRANSPORT LAYER
5-SESSION LAYER
6-PRESENTATION LAYER
7-APPLICATION LAYER Source: CoolInterview.com

OSI considered the primary architectural model for inter computing & internetworking communication.OSI model can be divided into two groups: upper layers (layers 7, 6 & 5) and lower layers (layers 4, 3, 2, 1). The upper layers of the OSI model deal with application issues and generally are implemented only in software. The lower layers of the OSI model handle data transport issues. The physical layer and the data link layer are implemented in hardware and software. Source: CoolInterview.com

Each and every layer of the OSI model has different responsiblity for how communication shuld take place.OSI model is layered in order to give structured framework for simplifying internetwork communication Source: CoolInterview.com

OSI stands for open system inter connection. this is designed by ISO. This is to make a data communication smoother between the participating system in a networks..ISO model defines in the form of vertical stack
structure with seven layers.
1)Application layer
2)Presentation layer
3)session layer
4)transport layer
5)network layer
6)datalimk layer
7)physical layer Source: CoolInterview.com

osi model is a structure layer model.it solves different issues and problems.which diffines the ise of divices,protocals etc. Source: CoolInterview.com

OSI STANDS FOR (OPEN SYSTEM INTERCONNECTION )IT IS DEVOLVED BY ISO (INFORMATION STANDARD ORGANIZATION )DESCRIBE THE FLOW OF INFORMATION ONE COMPUTER TO ANOTHER COMPUTER OSI MODEL ALSO CALLED ISO REFERENCE MODEL . IT IS A CONCEPTUAL MODEL THAT HAVE SEVEN LAYER.
1-PHYSICAL LAYER
2-DATA LINK LAYER
3-NETWORK LAYER
4-TRANSPORT LAYER
5-SESSION LAYER
6-PRESENTATION LAYER
7-APPLICATION LAYER

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The layered approach of OSI model is to simplify the internetwork communication. In this approach the complete model is divided into 7 layers and each layer do a specific job and utilize the services provided by lower layer and provide services to upper layer.Due to layered approach overall model get simplified and network designer can concentrate on respective layer only irrespective of the layer above or below it as each layer communicate with each other using messages.
OSI has 7 layers:-
1. Physical
2. Data link
3. Network
4. Transport
5. Session
6. Presentation
7. Application Source: CoolInterview.com

we know dat osi model is collection of different layers and protocols.
For communication of different devices or data transfer between devices they should understand with each other so this osi model is standard model for each device from dat different devices understand each other and data comm is possible.. Source: CoolInterview.com

OSI model is conceptual or logical model.OSI model explains how data is transferred from sorce to destination computer in network.It is a seven layered model,organised by ISO. Source: CoolInterview.com

OPEN SYSTEM INTERCONNECTION (osi)the itself suggest that it is open any one can acess the network.As the demand for network increases people can able acess the information freely.It is possible in osi modle which is in contrast to closed loop interconection. Source: CoolInterview.com

Its determine the right path and medium to travel/transfer a data unit/packet.
In OSI model we can see , how can data transmit/recieve from one node to another. Source: CoolInterview.com

OSI(Open System Interconnection) is a model designed by ISO to make data communication smoother between systems/networks.
OSI model has 7 layers: 1.Application Layer,
2. Presentation Layer,
3. Session Layer,
4. Transport Layer,
5. Network Layer,
6. Data Link Layer,
7. Physical Layer. Source: CoolInterview.com

The layered approach of OSI model is to simplify the internetwork communication. In this approach the complete model is divided into 7 layers and each layer do a specific job and utilize the services provided by lower layer and provide services to upper layer.Due to layered approach overall model get simplified and network designer can concentrate on respective layer only irrespective of the layer above or below it as each layer communicate with each other using messages. Source: CoolInterview.com

The layered approach of OSI model is to simplify the internetwork communication. In this approach the complete model is divided into 7 layers and each layer do a specific job and utilize the services provided by lower layer and provide services to upper layer.Due to layered approach overall model get simplified and network designer can concentrate on respective layer only irrespective of the layer above or below it as each layer communicate with each other using messages. Source: CoolInterview.com

OSI model is reference model which defines how can be data transfer from one device to another device. it defines the set of protocols whcih are used for communicating devices for different-different purpose. Source: CoolInterview.com

osi (open system interconnect)
thier are 7 layers
Application Layer - data
Perentation layer - data (coded)
Session layer - (link)
Transport layer - segments
Network layer - packets
Data link layer - frames
Phyisical layer - bits

it is a simple technique that how data is sent from source to destination in a network (just troubleshooting data unit in network) Source: CoolInterview.com

To communected between deffrent vender of software and hardware consept come. it is a blue print howconnector take place . In 1984 the internationnal stander organigation deffrent the set of rulce for manafacture are of
networking component disclimber means is knon as OSI model.
The seven layer of (provided of transfar data form P/c to another)OSI model form hight to loest are -
Aplication layer
Presentation layer
Session layer
Transport layer
Network layer
Data-link layer
Physical layer Source: CoolInterview.com

its just a ref. model and its simply tell which protocol is suitable for wat layer . which protocol is used by u depend on u. Source: CoolInterview.com

OSI layer is refers to different manufacturer companies alienable solve this problem has been implemented by 1984 in OSI layer in seven layer is .
Aplication layer
Presentation layer
Session layer
Transport layer
Network layer
Data-link layer
Physical layer Source: CoolInterview.com

OSI: Stands for Open System Interconnection. It's develop by ISO in USA. It has 7 layers.

1. Physical Layer
2. Data Link Layer
3. Network Layer
4. Transport Layer
5. Session Layer
6. Presentation Layer
7. application Layer Source: CoolInterview.com

OSI STANDS FOR OPEN SYSTEM INTERCONNECTION IT IS DEVOLVED BY ISO INFORMATION STANDARD ORGANIZATION DESCRIBE THE FLOW OF INFORMATION ONE COMPUTER TO ANOTHER COMPUTER OSI MODEL ALSO CALLED ISO REFERENCE MODEL . IT IS A CONCEPTUAL MODEL THAT HAVE SEVEN LAYER.
1-PHYSICAL LAYER
2-DATA LINK LAYER
3-NETWORK LAYER
4-TRANSPORT LAYER
5-SESSION LAYER
6-PRESENTATION LAYER
7-APPLICATION LAYER

Source: CoolInterview.com

Osi model is a completely logical partion of protocol data unit process,that difine how the data will go from one device to another device over the network. Source: CoolInterview.com

OSI MODEL IS A LOGICAL MODEL . IT IS USED TO HOW THE COMMUNICATION SHOULD TAKE PLACE BETWEEN THE COMPUTER WHEN TWO PC ARE COMMUNICATE WITH EACH 0THER. Source: CoolInterview.com

OSI stand for open system inter connection.it required to trouble shoot a network infrastructure. Source: CoolInterview.com

OSI Model:- OSI stand for open system interconnection. this model is recognised by an ISO. this is the reference model which is developed all manufacturer & vanders. so, that they can make their product according to international standers.

there are seven layer in this model:-
7. application layer.
6. presentation layer.
5. session layer.
4. transport layer.
3. network layer.
2. data link layer.
1. physical layer. Source: CoolInterview.com

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