Wednesday, 18 July 2018

2. Network Models

Q.1. Define Socket Address.
Ans. Socket address is the combinations of IP Address and port Address.
Socket Address
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11 comments:

  1. Unknown18 July 2018 at 06:28

    Roll no:-3828,3817,3806,Shravani potphode
    Q.1) What is the full form of UML?
    Ans.-: United Modeting Language.

    Q.2) What are the aim of UML?
    Ans-: a) Visualization
    b) Specifying
    c) Constructing
    d) Documenting

    Q.3) Where can the UML used?
    Ans-: a) Enterprise information system
    b) Banking and financial services
    c) Tally communication
    d) Transportation
    e) Defence or Aerospace

    Q.4) What are the different kinds of relationships?
    Ans-: a) Dependencies
    b) Association
    c) Generalization
    d) Realization

    Q.5) State different types of diagrams in UML.
    Ans-: a) Class diagram
    b) Object diagram
    c) Use case diagram
    d) Sequence diagram
    e) Collaboration diagram
    f) State chart diagram

    Q.6) State any two features of UML.
    Ans-: a) Not difficult to understand and to use.
    b) Addressing all the views. It is needed to develope and the deploy such system.
    c) Very expressive language.

    Q.7) What are the elements of UML?
    Ans-: a) UML's basic building blocks.
    b) The rules that specifies how this building blocks may be put together.
    c) Some mechanism that apply throughout the language.

    Q.8) What are the goals of UML?
    Ans-: a) To model system form concept to executable artifact using object oriented technology.
    b) To address the issues of scale inherit in complex mission critical system.
    c) To create a modelling language i.e. usable by both human and machine.

    Q.9) What are the architectural views of software system?
    Ans-: a) Use case view
    b) Design view
    c) Process view
    d) Implementation view
    e) Deployment view

    Q.10) What are the Basic Building Blocks of UML?
    Ans-: a)Things.
    b) Relationships in UML.
    c) Diagrams in UML.

    Q.11) What are the different types of things?
    Ans-: a) Structural things
    b) Behavioral things
    c) Grouping things
    d) Annotational things.

    ReplyDelete
  2. Unknown18 July 2018 at 06:45

    3856-Shravani potphode
    Q1)What is UML Architecture?
    Takes care structural and behavioral aspect of a software system.
    Includes software usage, functionality, performance, reuse, economic and technology constraints.

    Q2)What are UML Messages?
    ->Specification of a communication

    Q3)What are the different views in UML?
    ->Use Case view - Presents the requirements of a system.
    -> Design View - Capturing the vocabulary.
    ->Process View - Modeling the systems processes and threads.
    -> Implementation view - Addressing the physical implementation of the system
    ->Deployment view - Model the components required for deploying the system.

    Q4)Difference between Activity and Sequence Diagram.
    a. Activity diagram: captures the process flow. They are used for functional modeling.

    b. Sequence diagram: the track the interaction between the objects. They are used for dynamic modeling.

    Q5)Define modeling in UML and it advantages.
    ->Model is a simplification of reality.
    -> Blueprint of the actual system.
    -> Specify the structural and behavior of the system.
    -> Templates for designing the system.
    ->Helps document the system.

    Q6)Identify the wrong pair of symbol-visibility scope
    A. +public
    B. #protected
    C. !package
    D. -private

    Ans-> C
    Q7) Which of the following is not valid in the context of component diagrams?
    A) initial node, final node
    B) ports and connectors
    C) blck box and while box view
    D) provided and required interfaces

    Ans-> A

    ReplyDelete
  3. Unknown19 July 2018 at 08:05

    Roll no: 3955,3934,3935,3936,3926,3932,3931

    1)List the layers of OSI model?
    ->1) Physical layer 2) Data link layer 3) Network layer 4) transport layer 5) session layer 6) Presentation layer 7) application layer

    2)Data is transfered from physical layer to the channel in the form of stream?
    a) bit
    b) packets
    c) bytes
    d) signal
    -> a)bit

    3)What is main task of data link layer?
    ->The main task of data link layer is to transform a raw transmission facility into a line that appears free of undetected transmission errors to the network layer.

    4)What is function of network layer?
    ->It controls the operation of subnet.

    5)State true/false
    "There is a host-router protocol between session layer of host A and host B" Justify?
    ->False
    There is peer to peer protocol between session layer of host A and host B.

    6)What is basic function of transport layer?
    ->To accept data from session layer,split it upto smaller units if need,pass these to the network layer& ensure that the pieces all arrive correctly at the other end.

    7)What is working of seesion layer?
    ->Session layer allows set on different machines to establish session between them.

    8)List the services of session layer?
    ->a)Dialogue control b)Token management c)synchronization.

    9)What is working of presentation layer?
    ->The presentation layer manages their abstract data structures & allows higher level data structure to be defined a exchange.

    10)List the layer of TCP/IP model?
    -> a) Internet layer b) Transport layer c) Application layer d) Host to network layer.

    11)List the critique of the OSI model & protocols?
    -> a) Bad timing b) Bad technology c) Bad implementation d) Bad politics.

    12))Write the full form of a)OSI b)ISO c)RARP d)IGMP e)SCTP?
    -> a) Open System Interconnection
    b) International Standards Organization
    c) Reverse address Resolution Protocol
    d) Internet Group Message Protocol
    e) Stream Control Transmission Protocol

    13)Define open system ?
    ->Open system is set of protocols allows any two different system to communicate regardless of their underline architecture.

    14)Define Peer to Peer processes?
    -> The processes on each machine that communicate given layer are called peer to peer.

    15)List the layer of OSI model which has peer to peer protocol?
    -> a) Transport b) Session c) Application d) Presentation

    16) In each layer,a_______________can be added to the data unit of OSI model?
    a) Footer b) Header c) Bit d) node
    -> b)Header.

    17)List the factor concerned to physical layer?
    ->a)Physical characteristics of interfaces and medium
    b)representation of bits
    c)data rate
    d)synchronization of bits
    e)Line configuration
    f)Physical topology
    g)Transmission mode

    18)What is frames/Define frames?
    ->The data link layer divides the stream of bits recieved from the network layer into manangeable data units called as frames.

    19)List the levels of address used in TCP/IP model?
    ->a)Physical addresses b)Logical Addresses c)Port addresses d)Specific addresses.

    20)List the TCP/IP network layer?
    ->a) ARP b) RARP c) IGMP d) ICMP.

    21)How many bits are required for following type of adressing
    a)Physical address b)Port address
    -> a) 48bits/6byte b)16 bits/2 bytes.

    22)Identify the layer if the delivery method is
    a)node to node delivery
    b)end to end delivery
    c)process to proces delivery
    -> a) Data link layer b) Network layer c) Transport layer.

    ReplyDelete
  4. Unknown20 July 2018 at 07:02

    sorry
    for above questions roll nos are
    3955,3934,3935,3936,3926,3932,3931,3950,3953

    ReplyDelete
  5. Unknown8 August 2018 at 01:50

    Roll no. 06:10:16:22:27:44
    1)what is use of middle layer
    ->the middle layer uses the service of lower level
    2)purpose of OSI model
    ->to show communication between diffrent system without requiring changes
    3)full form of ARP
    ->address resolution protocol.
    4)what is logical adress ?
    ->logical gated are necesarry for universal communication that are independent underlying physical network.
    5)OSI model layer?
    ->application
    1)presentation
    2)session
    3)transport
    4)network
    5)dataline
    6)physical
    6)what is port address?
    ->the ip address and the physical address are necessary for aquqntity of data to travel from a source to destination host.
    7)full form of OSI?
    ->open system interconnection model.
    8)types of addressing?
    ->physical address logical port.
    9)full form of URL?
    ->universal resource locator.
    10)which address node define by physical address?
    ->LAN OR WAN.
    11)which protocol use for network layer?
    >ARP,RARP,ICMP,IQMP.
    12)Define flow control?
    ->it is perform end and trend rather than across a single link.

    ReplyDelete
  6. Pradeep Rollno:39514 September 2018 at 08:04

    Q1:state the responsibilities of the transport layer.
    Ans:the transport layer provide transfer of data between end user,providing reliable data transfer services to the upper layer.
    the transport layer provides for the segmentation of data and the control necessary to reassemble these pieces into the various communication streams.

    Q2:which device operates at the network layer of the OSI model?
    Ans:Router operates at the network layer of the OSI model.

    Q3:which device operates at the transport layer of the OSI model?
    Ans:Bridge,Router,Gateway devices operate at the transport layer of the OSI model.

    ReplyDelete
  7. Unknown5 September 2018 at 23:02

    Roll no.:-3928

    Q1.Write full form of LLC & MAC ?
    Ans.
    LLC=>Logical Link Control
    MAC=>Media Access Control

    Q2.Which main function of Data Link Layer?
    Ans.
    1) Framing
    2) Error Control
    3) Flow Control
    4) Physical Addressing
    5) Multiple access control

    Q3.Define e-mail?
    Ans.
    This service allows users to create,send & receive mails.

    ReplyDelete
  8. Anonymous6 September 2018 at 20:15

    3941,3952
    1)what is the main task of data link layer?
    ->the main task of data link layer is to transform a row transmission facility into a line that appears free of undetected transmission errors tothe network layer.
    2)what is the basic function of transport layer?
    ->the basic function of transport layer is to accept data split it into smaller unit if needed pass these to the network layer and ensure that the pieces all arrive correctly at the other end.
    3)give the name of osi reference model?
    ->1. physical layer
    2.datalink layer
    3. network layer
    4.transport layer
    5. session layer
    6. presentation layer
    7. application layer.
    4)what are the services provided by session layer?
    ->services provided by session layer are - dialogue control, token management, synchronization.
    5)what are the concept central to osi model?
    ->1.services
    2. interfaces
    3. protocols

    ReplyDelete
  9. Anonymous6 September 2018 at 20:18

    3905,3930,3646,3949
    1)what is the job of internet layer?
    -> its job is to permit host to inject packets into any network and have them travel independancy to destination.
    2)give the main task of data link layer?
    -> the main task of data link layer is to transform a row transmission facility into a line that appears free of undetected transnission error to the network layer.
    3) what is the basic function of transport layer ?
    ->the basic function of transport layer is to accept data split it into smaller units if needed pass these to network layer and ensure that the pieces all arrive correctly at the other end.
    4)what is the most populer type of transport connection?
    ->the most populer type of transport connection is error free point-to-point channel that deliver masseges or bytes in order in which they sent.
    5)give the name of osi references model?
    ->1. physical layer
    2.datalink layer
    3. network layer
    4.transport layer
    5. session layer
    6. presentation layer
    7. application layer.
    6)osi stands for?
    ->open system interconnection.
    7)define internet layer
    ->the internet layer defines an official packet format and protocol ip.
    8)what is control by network layer?
    ->the network layer controls the layer of subnet.
    9)what are the concept central to osi model?
    ->1.services
    2. interfaces
    3. protocols
    10)on which factor routers can be based?
    ->routers can be based on static tables that are "wired into" the network and rarely changed.

    ReplyDelete
  10. Anonymous6 September 2018 at 20:25

    3905,3930,3946,3949
    1)what is the job of internet layer?
    -> its job is to permit host to inject packets into any network and have them travel independancy to destination.
    2)give the main task of data link layer?
    -> the main task of data link layer is to transform a row transmission facility into a line that appears free of undetected transnission error to the network layer.
    3) what is the basic function of transport layer ?
    ->the basic function of transport layer is to accept data split it into smaller units if needed pass these to network layer and ensure that the pieces all arrive correctly at the other end.
    4)what is the most populer type of transport connection?
    ->the most populer type of transport connection is error free point-to-point channel that deliver masseges or bytes in order in which they sent.
    5)give the name of osi references model?
    ->1. physical layer
    2.datalink layer
    3. network layer
    4.transport layer
    5. session layer
    6. presentation layer
    7. application layer.
    6)osi stands for?
    ->open system interconnection.
    7)define internet layer
    ->the internet layer defines an official packet format and protocol ip.
    8)what is control by network layer?
    ->the network layer controls the layer of subnet.
    9)what are the concept central to osi model?
    ->1.services
    2. interfaces
    3. protocols
    10)on which factor routers can be based?
    ->routers can be based on static tables that are "wired into" the network and rarely changed.

    ReplyDelete
  11. Unknown14 September 2018 at 11:58

    Roll No's:3908,3909,3911,3912.


    Q1. List any two principle of OSI model.
    -> a. A layer should be created where a different abstraction is needed.
    b. Each layer should perform a well-defined function.

    Q2. What is role of physical layer?
    -> The physical layer is concerned with transmitting raw bits over a communication channel.

    Q3. What is the role of Data link layer?
    -> Data link layer is to transform raw transmission facility into line that appears free of undetected transmission errors to the network layer.

    Q4. What is UDP?
    -> It is second protocol in transport layer TCP/IP model is an unreliable,connectionless protocol for applications that do not want TCP's sequencing or flow control and wish to providetheir own.

    Q5. List three concepts which are central to OSI model.
    -> a. Services
    b. Interfaces
    c. Protocols.

    Q6. Which is widely used protocol in application layer of OSI model?
    -> The application layer contain a variety of protocols that are common needed by user. One widely used application protocol is HTTP(Hypertext Transfer Protocol) which is the basis for the world wide web.

    Q7. List the layers in TCP/IP reference model.
    -> a.Physical layer
    b. Data link layer
    c. Network layer
    d. Transport layer
    e. Application layer.

    Q8. Critique of the OSI model.
    -> a. Bad timing
    b. Bad technology
    c. Bad implementation
    d. Bad politics.

    Q9. What is the full form of ARP?
    -> Address Resolution Protocol.

    Q10. What is the full form of ARPANET?
    -> Advanced Research Projects Agency Network.

    ReplyDelete

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