Quiznetik
Information Retrival Techniques | Set 4
1. What is Architecture?
A. architecture is components
B. architecture is connectors
C. architecture is constraints
D. all of the mentioned
Correct : D. all of the mentioned
2. Mahout provides libraries for common and primitive Java collections.
A. java
B. javascript
C. perl
D. python
Correct : A. java
3. Point out the correct statement.
A. mahout is distributed under a commercially friendly apache software license
B. mahout is a library of scalable machine- learning algorithms, implemented on top of apache hadoop® and using the mapreduce paradigm
C. apache mahout is a project of the apache software foundation to produce free implementations of distributed or otherwise scalable machine learning algorithms
D. none of the mentioned
Correct : D. none of the mentioned
4. does not restrict contributions to Hadoop based implementations.
A. mahout
B. oozie
C. impala
D. all of the mentioned
Correct : A. mahout
5. identification algorithm which scores collocations using log-likelihood ratio.
A. collocation
B. compaction
C. collection
D. none of the mentioned
Correct : A. collocation
6. Point out the wrong statement.
A. ‘taste’ collaborative-filtering recommender component of mahout was originally a separate project and can run standalone without hadoop
B. integration of mahout with initiatives such as the pregel-like giraph are actively under discussion
C. calculating the llr is very straightforward
D. none of the mentioned
Correct : D. none of the mentioned
7. to produce NGrams of the desired length.
A. shnglefil
B. shinglefilter
C. singlefilter
D. collfilter
Correct : B. shinglefilter
8. A key of type is generated which is used later to join ngrams with their heads and tails in the reducer phase.
A. gramkey
B. primary
C. secondary
D. none of the mentioned
Correct : A. gramkey
9. unique ngrams or ngram fragments across multiple documents.
A. colloccombiner
B. collocreducer
C. collocmerger
D. none of the mentioned
Correct : A. colloccombiner
10. integrated into the process that is used to create vectors from sequence files of text keys and values.
A. lbr
B. lcr
C. llr
D. lar
Correct : C. llr
11. The LU method of factorization was introduced by the mathematician
A. alan tango
B. david hilbert
C. g. w. leibniz
D. alex grothendieck
Correct : A. alan tango
12. Which of the following step is not involved in the factorization process?
A. converting the given system to matrix form
B. the matrix is decomposed into the product of lower and upper triangular matrix
C. finding the unknowns using matrix multiplication
D. elimination of unknowns using back substitution
Correct : D. elimination of unknowns using back substitution
13. Errors may occur in performing numerical computation on the computer due to which of the following reasons?
A. rounding errors
B. power fluctuation
C. operator fatigue
D. back substitution
Correct : A. rounding errors
14. What is the other name for factorization method?
A. doolittle’s method
B. lin bairstow method
C. muller’s method
D. decomposition method
Correct : A. doolittle’s method
15. What is the principle of factorization?
A. there exists no inverse for a singular matrix
B. determinant of an identity matrix is one
C. every square matrix can be expressed as a product of a lower triangular matrix and upper triangular matrix
D. every matrix can be expressed as a sum of a skew symmetric and a symmetric matrix
Correct : C. every square matrix can be expressed as a product of a lower triangular matrix and upper triangular matrix
16. What is the condition applied in factorization method?
A. matrix should not be singular
B. back substitution should be done
C. there must exist a diagonal matrix form of the given matrix
D. all principal minors of the matrix should be non-singular
Correct : D. all principal minors of the matrix should be non-singular
17. While solving a system of linear equations, which of the following will be the order of the decomposed matrices; L and U?
A. order of l = 3x1, order of u = 1x3
B. order of l = 3x2, order of u = 2x3
C. order of l = 3x3, order of u = 3x3
D. order of l = 3x4, order of u = 4x3
Correct : C. order of l = 3x3, order of u = 3x3
18. TCP/IP model does not have layer but OSI model have this layer.
A. session layer
B. transport layer
C. application layer
D. network layer
Correct : A. session layer
19. Which layer is used to link the network support layers and user support layers?
A. session layer
B. data link layer
C. transport layer
D. network layer
Correct : C. transport layer
20. Which address is used on the internet for employing the TCP/IP protocols?
A. physical address and logical address
B. port address
C. specific address
D. all of the mentioned
Correct : D. all of the mentioned
21. TCP/IP model was developed the OSI model.
A. prior to
B. after
C. simultaneous to
D. with no link to
Correct : A. prior to
22. Which layer is responsible for process to process delivery in a general network model?
A. network layer
B. transport layer
C. session layer
D. data link layer
Correct : B. transport layer
23. Which address is used to identify a process on a host by the transport layer?
A. physical address
B. logical address
C. port address
D. specific address
Correct : C. port address
24. Which layer provides the services to user?
A. application layer
B. session layer
C. presentation layer
D. physical layer
Correct : A. application layer
25. Transmission data rate is decided by
A. network layer
B. physical layer
C. data link layer
D. transport layer
Correct : B. physical layer