Fundamental model that helps to know the key problems for the designers of distributed system

Q.  Which of the following fundamental model helps to know the key problems for the designers of distributed system?
- Published on 23 Sep 15

a. OSI model
b. Hybrid model
c. TCP/IP model
d. All of the above

ANSWER: All of the above
 

    Discussion

  • Prajakta Pandit   -Posted on 19 Oct 15

    OSI Model :

    - OSI (Open Systems Interconnect) reference model consists of seven layers : physical, data-link, network, transport,session, presentation and application.

    - OSI model layers usually do not concerned exactly to the protocol stack running on an actual system.

    - It is easy to add multiple-network models.

    - It encrypts the data for security purpose.

    - The protocols are hidden in the OSI model so they can easily replaced by new protocols when the technology changes.

    TCP/IP Model :

    - TCP gives guarantee that a packet will reach on the destination without any duplication and the order of data will be same.

    - TCP is a reliable protocol.

    - TCP is a connection oriented protocol, it means that connection must be open between two ends before sending data.

    - It has a scalable, client-server architecture.

    - It enables the internetworking between the organizations.

    Hybrid Model :

    - Hybrid models are most frequently used for backup purposes because they relieve enterprises of the need to use a secondary data centre.

    - Hybrid networks are the networks that are based on both peer-to-peer and client-server relationship.

    - Hybrid networks still provide all the centralized services of servers, but they also allow users to share and manage their own resources within the workgroup.

    - Hybrid networks incorporate the best features of workgroups in peer-to-peer networks with performance, security and reliability of server-based networks.

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