Most influential personalities in the history of computer science

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IT QUIZ ANSWERS

1. Artificial Intelligence based application developed by Apple for its iphone
A : SIRI

2. Who got Allan Turing Award recently ?
A : Judea Pearl

3. Jelly bean is a new version of _______?
A : Android

4. What is Mechatronics ?
A :Mechatronics is the combination of Mechanical engineering, Electronic engineering, Computer engineering, Software engineering,Control engineering, and Systems Design engineering in order to design and manufacture useful products

5. The term Spamdexing means ?

A : practice on the World Wide Web of modifying HTML pages to increase the chances of them being placed high on search engine relevancy lists.

Top Queries received about HSST Computer Science Exam 2012

Following are the queries received from this blog viewers recently.

How many vacancies are for hsst computer science 2012.

Question paper : 143/2012 hsst computer science.
Expected cut off marks of recently held hsst computer science exam 2012

HSST Computer short list.

Reported number of vacancies of HSST Senior  and Junior.

Hope all are eagerly waiting for the short list and interview. Pls contact the higher secondary directorate to know about the reported vacancies. Also use RTI accordingly to get the vacancy reports from schools.

HSST Computer Science 2012 : Cut off Mark Discussion

Most of this blog readers argue that the cut off marks between 40 to 60 .  There may be slight changes .In 2004 the cut off mark was only 35 that time the question was very tough and UGC like standard. Any way try to report maximum vacancies as possible . This step is very crucial and time consuming. If you are expecting a decent score, dont waste your time . Start reporting vacancies by forming a group. You can make use of Right to Information Act ( RTI ) to do this . RTI Act Was found very effective last time.

Computer Fundaments and Cyberlaw for Upcoming PSC Exams

Internet 

History about Internet  ( ARPANET , WWW , GOPHER , Tim Berners Li )
Browser Software ( Internet Explorer , Google Chrome , Mozilla Firefox , Safari etc )
Browsing & Navigation
Website & Webportals
Search Engines , Online Encyclopedia ( About Google , Yahoo, Bing , wikipedia )
E-Commerce ( Web cart , Non-Repudiation , EFT )


Cyber laws and Web security

Definition of Cyber law , Cyber Crime , Cyber Lawyer etc
Indian IT Act 2000 ( amendments in 2006 and 2008 )
Security Breeches ( Spamming , Spoofing , Phishing , Hacking etc )
Types of Hackers , What is Ethical hacking
Cryptography ( Encryption and Decryption Techniques )
Need of Protocols like HTTPS and SSL
Spyware , malware , freeware etc
VIRUS , WORMS & TROJANS
Antivirus programs and its need.


More >> 

HSST Computer Science / Application 2012:Possible Answer Key : Q.No 76 to Q.No 100

78.Natural objects can be realistically modeled using: 
(A) Binary space partitioning tree  (B) Fractal Geometry 
(C) Octrees  (D) Constructive Solid Geometry 


79.Not a storage placement strategy for an incoming program/ data: 
(A) First Fit  (B) Average Fit  (C) Worst Fit  (D) Best Fit 


80.An attribute or set of attributes within one relation that matches the candidate key of some 
(possibly the same) relation: 
(A) Super key  (B) Candidate key (C) Primary key  (D)Foreign key 


81.A subset of data in a data warehouse in the forrn of summary data, related to a particular 
department or business function : 
(A) Meta Data  (B) Archive data 
(C) Data Marts  (D) Operational Data Store 


82.In an IP packet, header checksum computes: 
(A) l's complement sum of 16 bit words in the header without data field 
(B) 2' s complement sum of 16 bit words in the header without data field 
(C) l's complement sum of 16 bit words in the header including data field 
(D) 2' s complement sum of 16 bit words in the header including data field 


83.A TCP server must prepare to accept a connection attempt from a TCP client by calling the 
function: 
(A) connect ( ) 
(B) bind () 
(C) accept ( ) 
(D) listen ( ) 

84.Not a Bernstein's condition for two processes PI and P2 executing in parallel on input set 11 
and 12, producing output set a 1 and a 2 respectively. 

85.The normalization of 1 N F relations to 2N F involves: 
(A) Removal of partial dependencies 
(B) Removal of full dependencies 
(C) Removal of transitive dependencies 
(D) Removal of multi-valued dependencies 


86.The technique used for dimensionality reduction of original data: 
(A) Discrete Wavelet transform  (B) Principal Component Analysis 
(C) Both (A) and (B)  (D) Neither (A) nor (B) 


87.The technique used for producing color displays with random scan CRT monitors: 
(A) Beam Penetration  (B) Shadow Mask 
(C) Direct View Storage  (D) Gas - Discharge 


88.An objective measure of pattern interestingness in data mining: 
(A) Support rule  (B) Confidence rule 
(C) Both (A) and (B)  (D) Neither (A) nor (B) 


89. DHCP stands for: 
(A) Dynamic Host Configuration Protocol 
(B) Dynamic Host Control Protocol 
(C) Dynamic Heap Control Protocol 
(D) Dynamic Heap Configuration Protocol 


90.A static member function can have access to : 
(A) Static functions in the same class (B) Static members in the same class 
(C) Static members of other classes (D) Public functions of the same class 


91.Hidden terminals in a wireless network may cause: 
(A) Delay  (B) Collisions 
(C) Drain of battery charge  (D) Reduction of Signal Strength 



92.IC 80287 is : 
(A) Graphics Processor

(B) Microprocessor 

(C) Micro-controller
(D) Co-processor


93. The maximum size of main memory of a computer is determined by:
(A) Operating System (B) Address Bus
(C) Data Bus (D) Chipset


94. In computer terminology, POST stands for: 
(A) Power Operating System (B) 

Push Pop Stack (C) Power On Self Test (D) 

Power Storage

95.SaaS is a popular term in the field of :
(A) Datamining (B) Bioinformatics
(C) Information Security (D) Cloud Computing


96. Not an assembler directive
(A) XCHG
(B) ASSUME
(C) SHORT
(D) DB


97.In a CDMA system, a code for a certain system should have: 
(A) Good auto correlation with other codes 
(B) Orthogonality to other codes 
(C) High standard deviation 
(D) Both (A) and (B) 

98. 1 Kilo Bytes refers to : 

(A) 1000 Bytes (B) 1024 Bytes  (C) 8000 Bytes (D) 8192 Bytes 

99.Tuple in relational algebra refers to : 

(A) Row (B) Column  (C) Table (D) Relation 

100. A ternary operator in C++ 

(A) ?:  (B) ||  (C):: (D).* 

HSST Computer Science / Application 2012:Possible Answer Key : Q.No 51 to Q.No 75

51.A point to point link that supports data flowing in only one direction at a time:
(A) Simplex link  (B) Half Duplex link (C) Full duplex link (D) Leased Line


52.A networking device used to connect similar types of LANs :
(A) Bridge  (B) Repeater  (C) Hub (D) MODEM


53. A SIM card contain:
(A) Personal Identification Number
(B) International Mobile Subscriber Identity
(C) Authentication key
(D) All of these

55. IC 74 LS 138 is a : 
(A) NOR gate 
(B) Decoder 
(C) Latch 
(D) Tri-state Buffer 



56. Binary search algorithm employs the strategy of: 
(A) Divide and Conquer technique 
(B) Dynamic Programming 
(C) Branch & Bound technique 
(D) Greedy Strategy 


57. Dangling - else ambiguity can be eliminated by: 
(A) Matching else with nearest if 
(B) Matching else with unmatched if 
(C) Removing last occurrence of else 
(D) Matching else with nearest unmatched if 


58.Among the following, a representation that can be used for designing a system as a collection 
of procedures or modules: 
(A) Data flow diagrams 
(B) Activity Chart 
(C) Flow chart 
(D) E R Modelling 


59. In C++, the following statements causes: 
# include  
int main ( )
{
int x = 10, Y = 5 ; 
int* p=& x; 
int* q = & Y ; 
p=q; 
delete (p) ; 
return (0) ; 
} 

(A) P - a dangling reference 
(B) q - a dangling reference
(C) Both p and q as dangling references 
(D) None of these 


60. Conversion from one data type to another data type, inserted automatically by a programming 
language: 
(A) . Polymorphism  (B) Coercion 
(C) Auto Binding  (D) Dynamic Binding 


61.The process of testing individual components in a software: 
(A) Interface Testing  (B) Partition Testing 
(C) Unit Testing  (D) Structural Testing 

62. In C++, the operator which cannot be overloaded: 
(A) Bitwise & operator  (B) Assignment operator 
(C) = = operator  (D) :: operator 

63.A solution to external fragmentation: 
(A) Segmentation (B) Compaction 
(C) Swapping (D) Thrashing 


64. A type of inheritance in which the property of one class is inherited by more than one class 
(A) Hybrid Inheritance  (B) Hierarchical Inheritance 
(C) Multilevel Inheritance  (D) Multiple Inheritance 


65. The worst case time complexity of merge sort algorithm for input size n : 
(A) O (n)  (B) O (n^2)  (C)O (log n)  (D) O(n log n) 


66.A full adder circuit with x, y and z as input bits produces an output, the binary sum 
represented by : 
(A) x+y+z  (B)   (C)  (D) xy+xz+yz 


67.If a variable is declared as register type, then the operator that cannot be applied to it : 
(A) Unary &  (B) Unary -  (C) Binary &  (D) Binary- 


69. What would be the output of the following C program
# include  stdio.h
main ()
{
int x =1;
while (x < = 1);
{
printf ("Good Morning");
- - x ;
}
}
(A) Good Morning
(B) Good Morning infinite times
(C) Blank Display 
(D) Syntax Error


70. In a compiler, the task of scanning the source code, to recognize and classify various elements
is known as:
(A) Code Optimization  (B) Syntactic Analysis
(C) Lexical Analysis  (D) Semantic Analysis


71.Time Complexity of Prim's minimum spanning tree algorithm is:
(A)O (n)  (B) O (log n)  (C) O (n log n)  (D) O (n2)


72.A fact in prolog is a special case of a :
(A) Query  (B) Rule (C) Term (D) Goal


73.Grammars that can be translated to DFAs :
(A) Left linear grammar  (B) Right linear grammar
(C) Generic grammar  (D) All of these


74.An example of a compiler - complier is:
(A) JAVA  (B) LEX
(C) YACC (D) MATLAB


75.A relation R on a set X is said to be a partial ordering if R is:
(A) Reflexive, Symmetric, Transitive
(B) Reflexive, Symmetric, Non-Transitive
(C) Reflexive, Anti - Symmetric, Transitive
(D) Reflexive, Anti - Symmetric, Non, Transitive