Monday, 10 February 2014

HTET PGT computer Science key by my friend Kuldeep Nain

HTET PGT COMPUTER SCIENCE KEY:--

91) ............... function gives the total number of rows in a table.
Ans. (4)Count
92) Macros are run or executed from .............. menu.
Ans.(1)Tools
93) ................. function is used to read string.
Ans.(3) gets()
94) ................... keyword eliminates duplicate rows from the results of SELECT statement.
Ans.(2) DISTINCT
95)The multiple use of input or output operators in one statement is called................ .
Ans.(3) Cascading
(The multiple use of input or output operators (“>>”or”<<”) in one statement is called cascading of I/O operator. The statement using multiple output operators (“>>”) is said to be cascading output operator and the statement involving multiple use of input operators (“<<”) is said to be cascading input operator.)
96)Encapsulation is a way to implement ..............
Ans.(3) Data Abstraction
97) TCP connection is available at port ........ on HTTP.
Ans.(1) 80
98) A ................ is a pool of values from which the actual values appearing in a given column are drawn.
Ans.(2) Domain
99)In ............ sorting smallest key is taken again and again in unsorted array.
Ans.(4) Heap ?
100) A numbered list can be created by .............. .
Ans.(4) <ol>
101) In ............ insertion & deletion takes place only at top.
Ans.(4) Stack
102) ......... is a way to bind the data & its associated functions together which allows them to be hidden.
Ans. (3) Class
103) In SQL decimal data type, ............. indicates the number of significant digits the number is to have.
Ans. (1) Precision [Precision is the number of digits in a number. Scale is the number of digits to the right of the decimal point in a number]
104) A file which contains readymade styles that can be used in a presentation is called............... .
Ans. (2) Template
105) .................. are data items that never change the values during a program run.
Ans. (3) Literals
106) What is an Operating System?
Ans. (4) System Software
107)What is the last column in worksheet?
Ans. Wrong Qns (Right qns is What is the last digit of last column in worksheet.)
108) A Cpu's processing power is measured in ........... .
Ans. (1) IPS
109) ............ is not a type of formatting in MS-Word.
Ans.(4) Line
110) A ............. is a set of rules that are applicable for a network.
Ans.(2) Protocol
111) .................... shortcut key is used to insert a new slide in the document presentation.
Ans.(1) CTRL+M
112) .................. document acts as a contract between the developer and the customer.
Ans.(3) SRS( Software Requirement Specification)
113) The number of attributes in a relation is called ............. .
Ans.(1) Degree
114) ................ first proposed the process of normalization.
Ans.(4) Edgar F. Codd
115) .............. refer to names of variable, function, array and Class created by the programmer.
Ans.(1) Identifier
116) ................ generations of computers started the use of operating systems.
Ans.(3) 3rd
117) FTP is a ......... layer mechanism of TCP/IP.
Ans.(1) Application
118) ................... tag is used for adding comments.
Ans.(2) //
The two forward slashes at the end of comment line (//) is the JavaScript comment symbol. This prevents JavaScript from executing the --> tag.
119) Given Circuit Diagram is ........
Ans. OR Gate
120) ...................... is not a physical tag.
Ans.(4) None of these
121) A ............ is a collection of data sent as a single message.
Ans.(1) Datagram
122) C++ was developed by ............ .
Ans.(4) Bjarne Stroustrup
123) When a user does not enter a value for a column, a value is automatically inserted in the field using ........... constraint.
Ans.(4) Default
124) ................ is an example of half duplex system.
Ans.(4) Walkie-Talkie
125) ................... command is used to move to a particular page number in a file.
Ans.(3) go to
126) A GUI is a ................ .
Ans.(3) Software Interface
127) ............... command gives virtual table with no data, but can be operated like any other table.
Ans.(3) CREATE VIEW
128) .............. generation of computers was the first to store instruction in their own memory.
Ans.(1) 2nd
129) When a function is defined inside a class, it is called ........... .
Ans.(2) Inline function
130) ............... is a file that contains data about data.
Ans.(3) Data Dictionary
131) A ....... operates at the highest layer of network abstraction.
Ans.(1) Gateway
132) The problem of variable delay in video conferencing is removed using .............. .
Ans.(2) Timestamp
133) The size of 1-D array with UB as upperbound and LB as lowerbound is given by ................... .
Ans.(1) Array size(length)=UB-LB+1
134) Which feature help to insert the contents of clipboard as text without any formatting.
Ans.(1) Paste special
135) Decimal Conversion of (11A.62) base 16 gives .......... .
Ans.(4) (282.382) base 10
136) Which of the following characters is used as a punctuator?
Ans.(1) #
137) What function display row data in a column & column data in row?
Ans.(4) Transpose
138) ............. is also called class interface.
Ans.(2) Member Access Level
139) ................... is an exit controlled loop.
Ans.(1) do-while
140) When two enteries about same data do not agree, the database is said to be ................ .
Ans.(1) Inconsistent
141) Two similar structures can have only .................... assignments.
Ans.(2) ==
142) Overall System architecture is derived in ................. phase.
Ans.(2) Design ?
143) In CREATE TABLE SQL command, each table must have atleast .......... column.
Ans.(4) 1
144) The requested files used by web are stored in................memory.
Ans.(3) Cache memory
145) ............... is a universal gate.
Ans.(3) NOR
146) To introduce special effects in a slide show ............. is used.
Ans.(3) Slide Transition
147) Microprocessor based computers started in ........................ generations.
Ans.(4) 4th
148) If every 'non-key' attribute is functionally dependent on primary "key", then the relation is in .............. .
Ans.(2) 2NF
149) A ............... uses physical addresses.
Ans. ?
(Router is the combination of hardware and software. Hardware can be a network server, a normal system or any device. A software can be an operating system and different routing protocols.
It uses both logical and physical addressing to connect logically separated network.)
150) The ability to modify the data structure and not have to change the program using data is called................. .
Ans.(1) Data Independence

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