121. Which property of object-oriented programming languages enables to derive new classes by extending the existing classes ?
(A) Polymorphism
(B) Encapsulation
(C) Inheritance
(D) Abstraction
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122. Which is a special method of a class which is executed automatically whenever a new object of that class is created ?
(A) constructor
(B) static
(C) default
(D) lambda
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123. Which of the following statements is not true about var lowing statements is not true about Java programming language ?
(A) It supports the concept of preprocessor directives.
(B) Java does not support the concept of pointers.
(C) It is an object-oriented programming language.
(D) The code produced by the Java compiler is called bytecode.
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124. Which of the following is the operator in Java to create an object of a class ?
(A) new
(B) create
(C) extends
(D) try
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125. Which of the following is not an access control specifier in a Java class?
(A) private
(B) protected
(C) proprietary
(D) public
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126. Which of the following is not a component of MS office suite ?
(A) Excel
(B) PowerPoint
(C) Word
(D) DOS
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127. Which of the following is a spreadsheet application software ?
(A) MS-Excel
(B) CorelDraw
(C) Adobe Photoshop
(D) MS-Word
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128. What kind of data can be entered in the cells of a MS-Excel worksheet?
(A) Date
(B) Text
(C) Number
(D) All of these
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129. What is the shortcut key to goto the end of an MS-Word Document?
(A) Ctrl + PgDN
(B) Shift + PgDn
(C) Ctrl + End
(D) Shift + End
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130. Which of the following is an example of absolute cell reference in MS-Excel ?
(A) #A#10
(B) %A%10
(C) &A&10
(D) $A$10
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131. Which layer in the ISO-OSI reference model is responsible for transmitting raw bits over a communication channel ?
(A) Physical
(B) Network
(C) Data Link
(D) Transport
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132. Who among the following developed the TCP/IP protocol suite ?
(A) Bob Kahn and Vint Cerf
(B) Larry Page and Sergey Brin
(C) Leonard Kleinrock and Paul Baran
(D) Dennis Ritchie and Ken Thompson
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133. Which of the following is an invalid IP (version 4) address ?
(A) 10.0.0.12
(B) 192.168.19.74
(C) 16.24.74.128
(D) 172.16.257.11
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134. How many bits are there in a MAC (Media Access Control) address ?
(A) 32
(B) 128
(C) 16
(D) 48
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135. Single-mode and multi-mode are two types of
(A) Thick Ethernet Cable
(B) Unshielded Twisted Pair Cable
(C) AUI Drop Cable
(D) Optical Fibre Cable
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136. What is the IEEE standard for WiFi networking ?
(A) 802.1
(B) 802.8
(C) 802.11
(D) 802.9
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137. Which of the following ranges of IP addresses is reserved for private use?
(A) 174.16.0.0 – 174.16.255.255
(B) 114.174.0.0 – 114.174.255.255
(C) 192.168.0.0 – 192.168.255.255
(D) 14.74.0.0 – 14.74.255.20
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138. Which among the following wireless communication technologies has the longest range ?
(A) WiFi
(B) IrDA
(C) Bluetooth
(D) RFID
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139. Which of the following is unguided transmission medium ?
(A) OFC
(B) Microwaves
(C) UTP
(D) Coaxial Cable
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140. First-Come-First-Serve (FCFS), Round Robin (RR) and Shortest Job First (SJF) are the ______ scheduling algorithms.
(A) CPU
(B) Memory
(C) Network
(D) Disk
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