MCQs - Data Communication and Computer Networks

MCQs - Data Communication and Computer Networks (300+ Questions)

1. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

2. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

3. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

4. What is the default port number for HTTP?

A) 20

B) 23

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C) 80

D) 443

Answer: C

5. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

6. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

7. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

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8. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

9. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

10. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

11. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

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D) Session

Answer: C

12. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

13. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

14. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

15. Which protocol is used for secure web browsing?

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A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

16. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

17. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

18. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

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Answer: C

19. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

20. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

21. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

22. Which device operates at the data link layer?

A) Router

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B) Switch

C) Repeater

D) Hub

Answer: B

23. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

24. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

25. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

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26. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

27. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

28. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

29. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

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D) Infrared

Answer: D

30. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

31. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

32. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

33. Which IP address class provides the maximum number of hosts?

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A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

34. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

35. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

36. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

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Answer: B

37. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

38. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

39. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

40. Which protocol is used to send emails?

A) FTP

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B) HTTP

C) SMTP

D) SNMP

Answer: C

41. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

42. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

43. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

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44. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

45. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

46. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

47. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

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D) SMTP

Answer: B

48. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

49. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

50. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

51. Which layer of the OSI model is responsible for routing?

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A) Data Link

B) Transport

C) Network

D) Session

Answer: C

52. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

53. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

54. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

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Answer: C

55. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

56. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

57. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

58. In which topology do all devices share a single communication line?

A) Mesh

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B) Star

C) Bus

D) Ring

Answer: C

59. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

60. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

61. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

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62. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

63. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

64. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

65. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

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D) SMTP

Answer: C

66. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

67. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

68. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

69. Which of the following is not a guided transmission medium?

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A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

70. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

71. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

72. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

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Answer: B

73. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

74. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

75. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

76. What type of switching is used in the internet?

A) Circuit switching

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B) Packet switching

C) Message switching

D) Manual switching

Answer: B

77. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

78. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

79. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

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80. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

81. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

82. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

83. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

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D) Class D

Answer: A

84. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

85. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

86. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

87. Which of the following is a connectionless protocol?

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A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

88. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

89. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

90. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

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Answer: C

91. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

92. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

93. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

94. What is the default port number for HTTP?

A) 20

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B) 23

C) 80

D) 443

Answer: C

95. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

96. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

97. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

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98. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

99. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

100. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

101. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

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D) Session

Answer: C

102. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

103. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

104. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

105. Which protocol is used for secure web browsing?

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A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

106. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

107. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

108. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

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Answer: C

109. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

110. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

111. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

112. Which device operates at the data link layer?

A) Router

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B) Switch

C) Repeater

D) Hub

Answer: B

113. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

114. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

115. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

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116. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

117. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

118. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

119. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

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D) Infrared

Answer: D

120. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

121. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

122. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

123. Which IP address class provides the maximum number of hosts?

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A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

124. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

125. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

126. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

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Answer: B

127. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

128. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

129. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

130. Which protocol is used to send emails?

A) FTP

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B) HTTP

C) SMTP

D) SNMP

Answer: C

131. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

132. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

133. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

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134. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

135. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

136. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

137. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

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D) SMTP

Answer: B

138. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

139. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

140. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

141. Which layer of the OSI model is responsible for routing?

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A) Data Link

B) Transport

C) Network

D) Session

Answer: C

142. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

143. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

144. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

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Answer: C

145. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

146. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

147. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

148. In which topology do all devices share a single communication line?

A) Mesh

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B) Star

C) Bus

D) Ring

Answer: C

149. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

150. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

151. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

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152. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

153. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

154. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

155. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

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D) SMTP

Answer: C

156. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

157. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

158. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

159. Which of the following is not a guided transmission medium?

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A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

160. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

161. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

162. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

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Answer: B

163. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

164. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

165. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

166. What type of switching is used in the internet?

A) Circuit switching

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B) Packet switching

C) Message switching

D) Manual switching

Answer: B

167. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

168. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

169. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

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170. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

171. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

172. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

173. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

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D) Class D

Answer: A

174. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

175. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

176. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

177. Which of the following is a connectionless protocol?

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A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

178. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

179. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

180. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

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Answer: C

181. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

182. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

183. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

184. What is the default port number for HTTP?

A) 20

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B) 23

C) 80

D) 443

Answer: C

185. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

186. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

187. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

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188. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

189. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

190. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

191. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

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D) Session

Answer: C

192. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

193. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

194. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

195. Which protocol is used for secure web browsing?

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 MCQs - Data Communication and Computer Networks

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

196. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

197. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

198. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

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Answer: C

199. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

200. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

201. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

202. Which device operates at the data link layer?

A) Router

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 MCQs - Data Communication and Computer Networks

B) Switch

C) Repeater

D) Hub

Answer: B

203. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

204. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

205. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

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206. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

207. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

208. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

209. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

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 MCQs - Data Communication and Computer Networks

D) Infrared

Answer: D

210. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

211. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

212. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

213. Which IP address class provides the maximum number of hosts?

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A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

214. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

215. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

216. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

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Answer: B

217. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

218. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

219. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

220. Which protocol is used to send emails?

A) FTP

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 MCQs - Data Communication and Computer Networks

B) HTTP

C) SMTP

D) SNMP

Answer: C

221. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

222. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

223. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

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224. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

225. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

226. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

227. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

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 MCQs - Data Communication and Computer Networks

D) SMTP

Answer: B

228. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

229. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

230. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

231. Which layer of the OSI model is responsible for routing?

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 MCQs - Data Communication and Computer Networks

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

232. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

233. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

234. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

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 MCQs - Data Communication and Computer Networks

Answer: C

235. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

236. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

237. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

238. In which topology do all devices share a single communication line?

A) Mesh

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 MCQs - Data Communication and Computer Networks

B) Star

C) Bus

D) Ring

Answer: C

239. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

240. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

241. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

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 MCQs - Data Communication and Computer Networks

242. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

243. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

244. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

245. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

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 MCQs - Data Communication and Computer Networks

D) SMTP

Answer: C

246. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

247. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

248. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

249. Which of the following is not a guided transmission medium?

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 MCQs - Data Communication and Computer Networks

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

250. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

251. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

252. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

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 MCQs - Data Communication and Computer Networks

Answer: B

253. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

254. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

255. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

256. What type of switching is used in the internet?

A) Circuit switching

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 MCQs - Data Communication and Computer Networks

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

257. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

258. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

259. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

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 MCQs - Data Communication and Computer Networks

260. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

261. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

262. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

263. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

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 MCQs - Data Communication and Computer Networks

D) Class D

Answer: A

264. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

265. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

266. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

267. Which of the following is a connectionless protocol?

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 MCQs - Data Communication and Computer Networks

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

268. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

269. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

270. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

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 MCQs - Data Communication and Computer Networks

Answer: C

271. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

272. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

273. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

274. What is the default port number for HTTP?

A) 20

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 MCQs - Data Communication and Computer Networks

B) 23

C) 80

D) 443

Answer: C

275. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

276. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

277. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

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 MCQs - Data Communication and Computer Networks

278. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

279. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

280. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

281. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

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 MCQs - Data Communication and Computer Networks

D) Session

Answer: C

282. Which device operates at the data link layer?

A) Router

B) Switch

C) Repeater

D) Hub

Answer: B

283. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

284. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

285. Which protocol is used for secure web browsing?

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 MCQs - Data Communication and Computer Networks

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

286. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

287. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

288. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

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 MCQs - Data Communication and Computer Networks

Answer: C

289. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

D) Infrared

Answer: D

290. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

291. Which layer of the OSI model is responsible for routing?

A) Data Link

B) Transport

C) Network

D) Session

Answer: C

292. Which device operates at the data link layer?

A) Router

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 MCQs - Data Communication and Computer Networks

B) Switch

C) Repeater

D) Hub

Answer: B

293. Which IP address class provides the maximum number of hosts?

A) Class A

B) Class B

C) Class C

D) Class D

Answer: A

294. What is the default port number for HTTP?

A) 20

B) 23

C) 80

D) 443

Answer: C

295. Which protocol is used for secure web browsing?

A) HTTP

B) FTP

C) HTTPS

D) SMTP

Answer: C

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 MCQs - Data Communication and Computer Networks

296. What type of switching is used in the internet?

A) Circuit switching

B) Packet switching

C) Message switching

D) Manual switching

Answer: B

297. Which of the following is a connectionless protocol?

A) TCP

B) UDP

C) FTP

D) SMTP

Answer: B

298. In which topology do all devices share a single communication line?

A) Mesh

B) Star

C) Bus

D) Ring

Answer: C

299. Which of the following is not a guided transmission medium?

A) Coaxial cable

B) Optical fiber

C) Twisted pair

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 MCQs - Data Communication and Computer Networks

D) Infrared

Answer: D

300. Which protocol is used to send emails?

A) FTP

B) HTTP

C) SMTP

D) SNMP

Answer: C

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