Information Retrival Techniques Set 14

Computer Science Engineering (CSE)

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This set of Information Retrival Techniques Multiple Choice Questions & Answers (MCQs) focuses on Information Retrival Techniques Set 14

Q1 | What is the condition applied in factorization method?
  • matrix should not be singular
  • back substitution should be done
  • there must exist a diagonal matrix form of the given matrix
  • all principal minors of the matrix should be non-singular
Answer: all principal minors of the matrix should be non-singular
Explaination:
the necessary condition for factorization method is that all principal minors of the matrix should be non-singular. otherwise, there will be no formation of lower and upper triangular matrix.
Q2 | While solving a system of linear equations, which of the following will be the order of the decomposed matrices; L and U?
  • order of l = 3x1, order of u = 1x3
  • order of l = 3x2, order of u = 2x3
  • order of l = 3x3, order of u = 3x3
  • order of l = 3x4, order of u = 4x3
Answer: order of l = 3x3, order of u = 3x3
Explaination:
the order of the decomposed matrices of a given matrix of the coefficient of
Q3 | TCP/IP model does not have               layer but OSI model have this layer.
  • session layer
  • transport layer
  • application layer
  • network layer
Answer: session layer
Explaination:
in osi reference model, there are two layers which are not present in tcp/ip model. they are presentation and session layer. the functions of presentation and session layer in the osi model are handled by the transport layer itself in tcp/ip.
Q4 | Which layer is used to link the network support layers and user support layers?
  • session layer
  • data link layer
  • transport layer
  • network layer
Answer: transport layer
Explaination:
physical, data link and network layers are network support layers and session, presentation and application layers are user support layers. the transport layer links these layers by segmenting and rearranging the data. it uses protocols like tcp and udp.
Q5 | Which address is used on the internet for employing the TCP/IP protocols?
  • physical address and logical address
  • port address
  • specific address
  • all of the mentioned
Answer: all of the mentioned
Explaination:
the physical, logical, port and specific addresses are used in tcp/ip protocol. all the addressing schemes, that is physical (mac) and logical address, port address and specific address are employed in both tcp/ip model and osi model. in tcp/ip, the addresses are more focused on the internet implementation of these addresses.
Q6 | TCP/IP model was developed            the OSI model.
  • prior to
  • after
  • simultaneous to
  • with no link to
Answer: prior to
Explaination:
several tcp/ip prototypes were developed at multiple research centers between 1978 and 1983, whereas osi reference model was developed in the year 1984. tcp/ip was developed with the intention to create a model for the internet while osi was intended to be a general network model.
Q7 | Which layer is responsible for process to process delivery in a general network model?
  • network layer
  • transport layer
  • session layer
  • data link layer
Answer: transport layer
Explaination:
the role of transport layer (layer 4) is to establish a logical end to end connection between two systems in a network. the protocols used in transport layer is tcp and udp. the transport layer is responsible for segmentation of the data. it uses ports for the implementation of process-to-process delivery.
Q8 | Which address is used to identify a process on a host by the transport layer?
  • physical address
  • logical address
  • port address
  • specific address
Answer: port address
Explaination:
a port number is a way to identify a specific process to which an internet or other network message is to be forwarded when it arrives at a server. some examples of port numbers are port 20 which is used for ftp data, port 22 which is used for ssh remote login ,and port 23 which is used for telnet.
Q9 | Which layer provides the services to user?
  • application layer
  • session layer
  • presentation layer
  • physical layer
Answer: application layer
Explaination:
in networking, a user mainly
Q10 | Transmission data rate is decided by
  • network layer
  • physical layer
  • data link layer
  • transport layer
Answer: physical layer
Explaination:
physical layer is a layer 1 device which deals with network cables or the standards in use like connectors, pins, electric current used etc. basically the transmission speed is determined by the cables and connectors used. hence it is physical layer that determines the transmission speed in network. some of the cables used for high speed data transmission are optical fiber cables and twisted pair cables.
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