G K Solved for UGC NET

G K Solved  for UGC NET

   
1. Who is the first governor general of India.
Lord William Bentinck.

2. Young Bengal movement was started by.
Henry Louis Vivian Derozio.

3. The demand for 'swaraj'(self government)  was made by Indian National Congress(I.N.C.) for the first time.
At Calcutta session, 1906 under the chairmanship of Dadabhai Naoroji.

4.  The communal award was announced by
Ramsay Mcdonald 

5. Who was the PM of Britain when India got independence.
Atlee.

6. The time taken by sunlight to reach earth.
8 minutes and 16.6 seconds.

7. The hottest planet in our solar system is.
Venus

8. What is Astronomical Unit.
The Mean distance between earth and sun.

9. Which is the highest peak in Africa.
Mt. Kilimanjaro (Tanzania).

10. Intensity of shaking caused by earthquake is measured by
Mercalli scale.

11. Willy Willies are cyclones that affect
Northern Australia

12. Rowlatt act, 1919 enabled government
To suspend Habeas Corpus.(to arrest and imprison suspects without trail).

13. Khilafat movement was started by
Mohammed Ali and Shoukat Ali to agitate against the injustices done to Turkey by British.

14. Who were the important members of Cabinet mission plan.
Wavell, Patrick Lawrence and Stafford Cripps

15. Poverty and UnBritish rule in India is a book written by
Dadabhai Naoroji

16. What is the shape of Earth.
Oblate Spheroid.

17. Kalhari is a famous desert in.
Botswana(Africa).

18. Who is the leading producer of platinum in the world.
South Africa.

19. Which is the largest lake in India.
Chilka lake(orissa) 

20. India shares longest boundary with.
Bangladesh

21. Shompens are tribes of.
Andaman and Nicobar Islands.

22. NH 7 connects 
Varanasi to Kanykumari.

23. Fundamental duties adopted in our constitution was borrowed from
USSR(Soviet Union)

24. Right to free and compulsory education to children under the age group of 6-14 years was enshrined in our constitution in 
Article 21-A

25. What is a Division bench.
A bench with  two to three  Justices.

26. Who is the highest law officer in the country.
Attorney General.

27. Lee Commission recommended setting up of
Public service commission

28. What is starred question.
A starred question is to be answered orally on the floor of the House.

29. Who is the chairman of 14th Finance Commission.
Y.V. Reddy

30. Peoples plan was formulated by
M.N. Roy

TIPS ON PAPER 3 OF UGC NET COMPUTER SCIENCE

TIPS ON PAPER 3 OF UGC NET COMPUTER SCIENCE

If you look the syllabus of ugc net computer science particularly for paper 3, it’s a huge ocean. So mastering over all areas is simply not an easy task. So you got to focus upon some of the conventional areas where questions are often asked.

In paper 3 you all know that there are two parts, core part and elective part. Concentrate more on core part as it contains popular subjects and also easy to learn. There are actually 14 sections.

BOOK LIST OF IMPORTANT REFEREN FOR UGC NET COMPUTER SCIENCE
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2. Database Management System Click Here to Buy

3. Computer graphics  Click Here to Buy

4. OOPS Click Here to Buy

5. Compiler design basics Click Here to Buy

6. Discrete Structures Click Here to Buy

7. Data communication and networks Click Here to Buy

8. Network security Click Here to Buy

9. Data structures Click Here to Buy

10. Unix basics Click Here to Buy

11. Software engineering Click Here to Buy

12. Operating systems  Click Here to Buy

13. Artificial intelligence Click Here to Buy

14. Java basics Click Here to Buy

Out of these fourteen sections, aspirants will be familiar with most of the sections. But the major fault they commit is that they don’t read books and never make notes of their own on important concepts and instead  try to rely on what they have learnt during their post-graduation and appear for the exam without focused preparation and meet failure.

Always bear in mind that when it comes to exams, you got to take it seriously and put 100% efforts as much as possible from your side and eventually you will be victorious in the exam. Nothing comes easy in life. Learn regularly for atleast two months as I have already mentioned in my previous article by  making action plans on what are the areas to be covered everyday.

How to tackle elective/optional subjects of ugc net compuer science:

As you all are aware of the fact that there are five electives namely:

1. Discrete Mathematics

2. Information coding and theory 

3. Linear and non linear programming 

4. Neural networks and fuzzy logics

5. Unix and windows Click Here to Buy

Questions on electives are mostly problem solving based one except elective 5. It is not required to master all the electives. Try to select some electives which you feel to be learnable and give more importance totheoretical aspect of electives because paper 3 is a good blend of theorotical and problem solving questions.
Elective 1, 2, 5 can be prepared with some extra effort.

Bottomline: Give more focus on core papers.

Don’t get afraid when you see big questions. Always remember the fact that big question means easy answer. All that is needed is being patient, presence of mind and thinking logically.

Let me give an example for this,

What is the output of the following

program ?

#include<stdio.h>

main( )

{

int a, b = 0;

static int c[10] =

{1, 2, 3, 4, 5, 6, 7, 8, 9, 0};

for (a=0; a<10;++a)

if ((c[a]%2)= =0) b+=c[a];

printf(“%d”,b);

}

(A) 15 (B) 25

(C) 45 (D) 20

This was actually a question asked in UGC Net computer science paper 3 exam.

When candidates see such questions, they immediately leave the question or make a guess just like that. Don’t do it.

Do you know how to solve this?  Its very simple.

An array has been declared and initialized with 10 elements.

Then we have a for loop which will execute 10 times.

Then there is a if statement which has modulus operation (modulus means the remainder part of the answer will be taken in to consideration.

 we have to get zero as the remainder, Then only even numbers will be taken in to consideration.

i.e., 2%2=0,

4%2=0,

6%2=0,

8%2=0

Then we have

b+=c[a];

which means b=b+c[a];

initially b is initialized as zero, therefore add 2+4+6+8=20

So the answer is 20.

Very simple.

So learn the question and  the answer options well.
There are greater chances that you will mark the right answer with what you have learnt and understood.  

Finally, I wish all my readers all the very best for the forthcoming UGC NET exam andI wish you all pass this exam with flying colours. Let me conclude with a quote, “Little drops of water makes a big ocean”.

Similarly, “Little amount of hard and smart work on a consistent basis helps you reach your destiny”.

OPERATING SYSTEM SYNCHRONIZATION BASICS FOR UGC NET

OPERATING SYSTEM SYNCHRONIZATION BASICS FOR UGC NET

Synchronization : The concept of Synchronization is concerned with cooperating

processes that share some resources. Co-operating processes must

synchronize with each other when they use shared resources. Thus we can view the Synchronization as a set of constraints on the ordering of events.

 

Semaphores : A Semaphore is a protected variable whose value can be accessed and altered only by operations P and V.

 

A Semaphore Mechanism basically consists of the two primitive operations

SIGNAL and WAIT.

The Semaphore variable can assume only positive integer value. The integer

value of the Semaphore in the wait and signal operations must be executed

indivisible. That is, when one process modifies the Semaphore value, no other process can simultaneously modify that same Semaphore value.

Importance of semaphores :

(i) Semaphores can be used to deal with n process critical section problem.

As the n processes shares the semaphores, mutex (standing for mutual

exclusion), is initialized to 1.

 

(ii) Semaphores can also be used to solve various synchronization problems.

Co-operating Processes : The concurrent processes executing in the Operating

System may be either Independent Processes or Co-operating Processes.

A process is Co-operating if it can affect or is affected by the other processes

executing in the System. That means any process that shares data with other processes is a Co-operating Process.

Inter-Process Communication : Cooperating processes can communicate in a

shared-memory environment. Cooperating processes communicate with each

other via an Inter-Process-Communication (IPC) facility. IPC provides a

mechanism to allow processes to communicate and to synchronize their actions.

Inter-Process Communication is best provided by a Message System. Message

System can be defined in many different ways. An IPC facility provides at least

the two operations - send(message) and receive(message).

UGC NET COMPUTER SC. PAPER 2

UGC NET COMPUTER SC. PAPER 2

1. What is the functionality of recursive foreign key.

A recursive foreign key references its own relation.

2. 5^th Normal form is concerned with

Join dependency

3. Which Normal form is considered adequate for normal database design.

3NF

4. Which two files is used during operation of DBMS.

Data dictionary and transaction log

5. Which addressing mode allows relocation without any change over in code.

Indexed addressing

6. Dependency preservation is not guaranteed in

BCNF (Boyce Code Normal Form)

7. Which operator is used to compare a value to a lot of literals values that have been specified.

Like operator

8. A graph in which all nodes are of equal degree.

Regular graph

9. The length of Hamiltonian path in a connected graph is

n-1

10. A graph with one vertex and no edges is

Trivial graph

11. The negation of the statement “4 is even or -5 is negative” is

4 is odd and -5 is note negative.

12. An euler graph is one in which

All vertices are of even degree.

13. Advantage of synchronous sequential cirtcuits is

Faster operation

14. EPROM contents can be erased by exposing it to

UV rays

15. Data can be changed from special code to temporal code by using

Shift registers

16. For pure ALOHA, maximum channel utilization is

18%

17. What is bit stuffing.

Bit stuffing referes to inserting a ‘0’ in usr stream to differentiate it with a flag.

18. Wireless interconnection to PSTN are also called as

IXCs

19. Predictive modeling in data mining uses

Statistical technique

20. The scope of GIS encompasses two types of data called as

Spatial data and non spatial data

21. What are virtual data warehouse.

Virtual data warehouse provide views of operational databses that are materialized for efficient access.

22. The Microsoft system to verify Activex controls is

Authentic code

23.What is an expert system.

An expert system is an interactive computer based decision tool that uses facts and heuristics to solve difficult decision making problems based on knowledge acquired from an expert.

24. What is a neural network

It is an artificial representation of human brain that tries to simulate its learning process.

25. What is fuzzy logic.

It is a method of mimicking the ability of human reasoning usng some rules to produce an output using interpolation process.

UGC NET COMPUTER SCIENCE

 UGC NET COMPUTER SCIENCE

1.  A  2MB PCM(pulse code modulation) has

31 voice channels & 1 signalling channel.

2. What is Buffering.

Buffering is the process of temporarily storing the data to allow for small variation in device speeds.

3. What is a terminal emulation.

A software that allows a personal computer to pretend as a computer terminal is called as terminal emulation.

4. What is the use of program counter.

A program counter is used to store address of next instruction to be executed.

5. What is the application of FTP.

File Transfer Protocol(FTP) is used to transfer files with user authentication.

6. Piggy backing is a technique used for

Acknowledgement.

7. The 2’s complement of 10 is

10

Reason:

Transform 10 using NOT gate which means 01

Add by 1

 01

+ 1

-----

10

-----

8. Producer consumer problem is an example of

Semaphores

9. What is Agglomeration

Agglomeration is the process of grouping tasks in to larger tasks to improve performance.

10. Cycle stealing is a term related to

DMA(Direct Memory Access).

11. The logic family with least fanout is

RTL

12. IP is presented in which layer of OSI.

Network layer.

13. Context Free Languages are closed under

Union, Kleen, Closure.

14. What is a self join.

A table joined within itself.

15. What is meant by data mining.

Data Mining is the process of extracting previously non known valid and actionable information from large data to make crucial business and strategic decisions.

16. Which error detection method  uses one's complement arithmetic.

Checksum

17. The maximum channel utilization in PURE ALOHA is

18%

18. The maximum channel utilization SLOTTED ALOHA is

36%

19. A mesh topology is characterized by

Highest reliability.

20. The flow of electrons in CRT is controlled by

Control grid

21. The recursively enumerable languages are closed under

Union and intersection

22. What is mono alphabetic substitution.

 A character in the plaintext is always changed to the same character in the ciphertext, regardless of its position in the text.

23. Bresenhan’s line drawing algorithm is most sought because it uses only

Integer Arithmetic.

24. What is meant by critical fusion frequency.

The refresh rate above which a picture stops flickering and fuses into a steady image is called as critical fusion frequency.

25. A network schema allows

Many-Many relationship.

TEACHING & RESEARCH APTITUDE UGC NET GENERAL PAPER - 1

TEACHING & RESEARCH APTITUDE UGC NET GENERAL PAPER - 1

1. Effective teaching  is the result of
Clear and factual communication.

2. Man has attained success in various fields of life including education due to
Man's learning capacity.

3. State the reason for becoming a teacher.
It is a reputable job.


4. The best method to teach in class is by
Using audio-visual aids.

5. How to control students in the classroom.
By identifying the cause for restlessness.

6. Who is a teacher.
A teacher is a friend, philosopher, guide to students.

7. One will be an effective communicator if
One is clear about what one communicates.
Use of audio visual aids.
8. The best way to understand the students aptitude is by
Speaking with them freely and identify the aptitude.

9. A teacher in a classroom should be like
A leader.

10. A good research involves
A penetrating and analytical mind.

11. A competent teacher is one who
Creates interest in the subject amongst students.

12. Quality of research depends on
Proper guidance.

13. Moral teachings of teacher would give
Moral values to students.

14. Teachers need to study educational psychology because 
It helps the teacher to handle the students in a more progressive way.

15. According to Plato, the main goal of education is to
Develop the power of thought.

16. Aim of modern education should aim for 
Harmonious development of personality of the student.

17. The main advantage of educational values are
To develop healthy and balanced personality.
Generate capacity to earn livelihood
Develop vocational efficiency.

18. Operation BlackBoard is related to
Primary education.

19. Evaluation is useful to assess
Knowledge and skill.
Attitudes and study habits.
Interest and appreciations.

20. The degree of brightness possessed by an individual is termed as
Intelligent Quotient.

UGC NET COMPUTER SCIENCE MOBILE COMUPTING

1.   Mobile IP uses how many types of address.
Two adresses namely:
* A fixed home address
* A care of address

2. What are the special features of IPV6 (Internet Protocol version 6)
# Stateless Address Auto Configuration
# Neighbour discoverys
# Nodes implement strong authentication and encryption techniques to ensure internet security.


3. Expand the following terms.
GSM - Global System for Mobile Communication
CDMA - Code Division Multiplex Access
PDA - Personal Digital Assistant
GPRS - General Packet Radio Service
ATM - Asynchronous Transfer Mode

TDMA - Time Division Multiplex Access
FDMA - Frequency Division Multiplex Access
MS - Mobile Station
BSS Base Station Subsystem
IMEI - International Mobile Equipment Identity
LOS - Line of Sight
MH - Mobile Host
OSI - Open System Interconnection
WWAN - Wireless Wide Area Network

4. The ATM layer in ATM technology deals with
Cell Transport

5. What is WMAN
WMAN stands for Wireless Metropolitan Area Network.
It is a type of wireless network that connects several wireless LANS.

Example: Wi-Max.

6. What is Wi-Max.
Wi-Max is a type of WMAN which is described by IEEE 802.16 standard.

7. What is piconet.
Piconet is a collection of bluetooth devices which are synchronized to the same hopping sequence.
It has four major components namely:
Master(M)- A bluetooth device can be the master of other bluetooth devices.
Slave(S) - The slaves are those bluetooth devices which are dependent on the master bluetooth device.
Parked(P) - They are not active presently but can be reactivated within some time.
Standby(SB) - They do not participate in piconet.

8. What are the ways in which Electronic payments are made.
Digital token
Credit card
Smart card

9. Expand E-commerce ERP, EFT and EDI
E-commerce- Electronic commerce
EDI- Electronic Data Interchange
ERP- Enterprise Resource Planning
EFT- Electronic Fund Transfer

10. The threats to electronic payment systems involves
Trojan horse
Computer virus
Computer worm

11. Activex controls can be developed using
Visual Basic, Java, Visual C++

12. When a bad frame is received, what does the frame relay does
It discards the frame.

13. ALOHA  is used for
Channel allocation problem

14. What are the applications of Slotted ALOHA.
Slotted Aloha divides time in to discrete intervals
It requires global time synchronization.

15. CGI stands for
Common Gateway Interface.

16. OLE growth curve involves
Activex, DirectX, OLE controls

17. A key verifier machine is used to
Control transaction entry.

18. System integrity involves
Accuracy, security, appropriateness

19. What is a session
A session is the period of time that a unique user interacts with a web application.

20. List out the functions of GIS
Designing
Planning
Spatial imaging
Decision modeling

UGC NET COMPUTER SCIENCE:DISCRETE STRUCTURES,NETWORKS,DIGITAL LOGICS

1. What is a set.
A set can be defined as an unordered collection of distinct objects.

Example: A={3,6,2,8,7} can be called as a "set"

2. What is the difference between a partial order relation and equivalence relation.
A relation that is Reflexive, Antisymmetric, Transitive is said to be a Partial order  relation.
A relation which is Reflexive, Symmetric and Transitive is called as an Equivalence relation.
 Shortcut: RAT=Partial order
                     RST=Equivalence

3. What is meant by negation.
Negation means the opposite of the given preposition.
Example:
The negation of the preposition 'A' is ~A.
The negation of True is False
The negation of False is True





4. What is the difference between Tautology,Contradiction,satisfactory.
Tautology: Tautology means all the resulting outputs are always True.
Contradiction: Contradiction happens when all the results are always False
Satisfactory: Satisfactory means outputs may be True or False

5. What is an Eulerian graph.
An Eulerian graph is one which should be connected and each of its vertices should be of even degree.

6. State the formulas for complete graph and connected graph.
Complete graph=n(n-1)/2
Connected graph=n-1

7. Mention the basic laws of boolean algebra.
1. Commutative law.
2. Associative law.
3. Distributive law.
Let A=1, B=2, C=3

1. Commutative law: 
A+B=B+A
Example: 1+2=2+1
A*B=B*A
Example: 1*2=2*1

2.  Associative law:
A+(B+C)=(A+B)+C
Example: 1+(2+3)=(1+2)+3
A*(B*C)=(A*B)*C
Example: 1*(2*3)=(1*2)*3

3. Distributive law:

A*(B+C)=(A*B)+(A*C)
Example: 1*(2+3)=(1*2)+(1*3)

8. Name the two de-morgan's theorems.
___    _ _
A+B=A.B
___   _  _ 
A.B=A+B

9. What is the difference between a latch and a flipflop
A latch has no clock signal and it is asynchronous.
A flipflop has a clock signal and it is synchronous (it has time frame).
Note: Latches and flipflops are basic building blocks of sequential circuits.

10. What is a register and what is the use of shift register.
A register consists of a set of flipflops used to store binary information.
A register which is able to shift the binary information either to the left or right is alled as shift register.

11. What is the application of Watson-Felix model in software engineering.
It is used to determine the effort, staff size and total cost based on LOC (Lines of Code) needed to develop a software.

12. State the port numbers used in HTTP, FTP, SMTP, POP3, TELNET.
HTTP: 80
FTP: 20 and 21
SMTP: 25
POP3: 110
TELNET: 23

Note: Both SMTP & POP3 are used in email technology but there is a difference between the two.
SMTP is used to send a mail.
POP3 is used to receive the mail.

13. Give two examples of WAN.
Asynchronous Transfer Mode(ATM)
Integrated Services Digital Network(ISDN)

Tip: WAN is based on packet switching technology.

14. How many layers are used in OSI and TCP/IP model.
7 layers in OSI and 4 layers in TCP/IP model.
OSI- Open System Interconnection (7 layers)
Physical layer - Defines physical characterstics of network(ex. electronic circuits)
Data link layer - Data encapsulation (ex. packets)
Network layer - Packet transmission
Transport layer - Delivery of packets from source to destination
Session layer - Manges network access
Presentation layer - Determines format of data (ex. data compress, decompress, encryption,etc.)
Application layer - Consists of the applications used by end user(ex. java, word, notepad,etc)

Shortcut: PDNTSPA 

TCP/IP MODEL (4 Layers)
Network layer - Mapping between IP addresses and network physical address
Internet layer - Makes datagrams and handles data routingm Makes use of IP.
Transport layer - Makes use of TCP and UDP,ensures data delivery services.
Application layer - HTTP,FTP, SMTP, etc are used here.

Shortcut: NITA

15. Explain the truth tables of basic gates.
                                                                                                  AND GATE

A	B	A.B
0	0	0
0	1	0
1	0	0
1	1	1

  

OR GATE

A	B	A+B
0	0	0
0	1	1
1	0	1
1	1	1

NOT GATE

A	_ A
0	1
1	0

NAND GATE

A	B	___ A.B
0	0	1
0	1	1
1	0	1
1	1	0

NOR GATE

A	B	___ A+B
0	0	1
0	1	0
1	0	0
1	1	0

COMMENTS ARE MOST WELCOME.