HTET PGT Answer Key 2021

HTET PGT (Level 3) Exam 02 Jan 2021 Part IV (Computer Science) (Answer Key)

131. A Database Management System (DBMS) is :
(1) Collection of interrelated data
(2) Collection of programs to access data
(3) Collection of data describing one particular enterprise
(4) All of the three

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Answer – (1)

132. Which of the following networks is considered as the first network that initiated the internet?
(1) ARPANET
(2) UUCPNET
(3) AOL
(4) PTRINET

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Answer – (1)

133. OCR stands for :
(1) Online Character Rendering
(2) Optical Character Recognition
(3) Online Character Restoration
(4) Optical Character Re-organization

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Answer – (2)

134. Which one of the following is used to sort rows in SQL ?
(1) SORTBY
(2) ALIGNBY
(3) ORDERBY
(4) GROUPBY

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Answer – (3)

135. Which device is needed to connect two computer systems, if the systems use different protocols ?
(1) Repeater
(2) Gateway
(3) Bridge
(4) Hub

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Answer – (2)

136. Which of the following is the most commonly used data structure for implementing Dijkstra’s Algorithm ?
(1) Max priority queue
(2) Stack
(3) Circular queue
(4) Min priority queue

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Answer – (4)

137. Which database normal form is considered satisfactory for relational database design?
(1) 1 NF
(2) 2 NF
(3) 3 NF
(4) 4 NF

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Answer – (3)

138. In context of internet, ______ deals with rules of framing messages that will not hurt other users of internet.
(1) Amazon
(2) Net Neutrality
(3) Netiquette
(4) eQuality

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Answer – (4)

139. Primary author of HTML (Hyper Text Markup Language) is?
(1) Brendan Eich
(2) Tim Bemers-Lee
(3) Google
(4) Peter Norton

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Answer – (*)

140. Which of the following term is used for a computer network that typically connects personal computers within a limited geographical arca, usually within a single building ?
(1) LAN
(2) WAN
(3) MAN
(4) BAN

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Answer – (1)

141. Socket address is :
(1) IPv4 address translated to IPv6 address
(2) Combination of IP address and e port address
(3) Combination of MAC address and domain address
(4) Application layer address

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Answer – (3)

142. Which of the following protocol used to transmit information on the World Wide Web?
(1) HTT
(2) HPP
(3) HTTP
(4) HPPT

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Answer – (3)

143. SQL query and modification commands are represented in which of the following ?
(1) DDL
(2) DML
(3) HTML
(4) XML

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Answer – (2)

144. Which SQL Query is used to remove a table and all its data from the database ?
(1) Create Table
(2) Alter Table
(3) Drop Table
(4) None of three

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Answer – (3)

145. Which one of the following is not a valid reserved keyword in C++?
(1) explicit
(2) public
(3) implicit
(4) private

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Answer – (3)

146. What tag is used for adding Images to HTML Web Documents ?
(1) picture
(2) pic
(3) img
(4) src

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Answer – (3)

147. The root tag in HTML document is called :
(1) HTML
(2) BODY
(3) TITLE
(4) HEAD

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Answer – (1)

148. Which type of best first search algorithm was used to predict the closeness of the end of path and is solution ?
(1) Greedy BFS
(2) Divide and Conquer
(3) Heuristic BFS
(4) Combinatorial

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Answer – (2)

149. The outcome of a SQL SELECT statement is a:
(1) File
(2) Table
(3) Report
(4) Form

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Answer – (2)

150. From which of the following is HTML derived ?
(1) URL
(2) TCP/IP
(3) SGML
(4) XML

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Answer – (3)

 

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