MCQ in Computer Network and Networking Part 4 | ECE Board Exam

(Last Updated On: January 7, 2023)

This is the Multiple Choice Questions Part 4 of the Series on Computer Network and Networking as one of the Communication Engineering (EST) and Electronics Engineering topics. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize yourself in each and every question compiled here taken from various sources including but not limited to past Board Exam Questions in Communication Engineering and Electronics Engineering field, Communications Books, Electronics Books, Journals and other Communications and Electronics References.

Continue Practice Exam Test Questions Part 4 of the Series

⇐ MCQ in Computer Network and Networking Part 3 | ECE Board Exam

Choose the letter of the best answer in each question.

151. Internet access by transmitting digital data over the wires of a local telephone network is provided by

A. leased line

B. digital subscriber line

C. digital signal line

D. none of the mentioned

152. ISP exchanges internet traffic between their networks by

A. internet exchange point

B. subscriber end point

C. isp end point

D. none of the mentioned

153. Which one of the following protocols is not used in internet?

A. http

B. dhcp

C. dns

D. none of the mentioned

154. IPv6 addressed have a size of

A. 32 bits

B. 64 bits

C. 128 bits

D. 265 bits

155. Internet works on

A. packet switching

B. circuit switching

C. both (a) and (b)

D. none of the mentioned

156. Which one of the following is not an application layer protocol used in internet?

A. remote procedure call

B. internet relay chat

C. resource reservation protocol

D. none of the mentioned

157. Which protocol assigns IP address to the client connected in the internet?

A. dhcp

B. ip

C. rpc

D. none of the mentioned

158. Which one of the following is not used in media access control?

A. ethernet

B. digital subscriber line

C. fiber distributed data interface

D. none of the mentioned

159. In cryptography, what is cipher?

A. algorithm for performing encryption and decryption

B. encrypted message

C. both (a) and (b)

D. none of the mentioned

160. In asymmetric key cryptography, the private key is kept by

A. sender

B. receiver

C. sender and receiver

D. all the connected devices to the network

161. Which one of the following algorithms is not used in asymmetric key cryptography?

A. rsa algorithm

B. Diffie Hellman algorithm

C. electronic code book algorithm

D. none of the mentioned

162. In cryptography, the order of the letters in a message is rearranged by

A. transpositional ciphers

B. substitution ciphers

C. both (a) and (b)

D. none of the mentioned

163. What is data encryption standard (DES)?

A. block cipher

B. stream cipher

C. bit cipher

D. none of the mentioned

164. Cryptanalysis is used

A. to find some insecurity in a cryptographic scheme

B. to increase the speed

C. to encrypt the data

D. none of the mentioned

165. Which one of the following is a cryptographic protocol used to secure HTTP connection?

A. stream control transmission protocol (sctp)

B. transport layer security (tsl)

C. explicit congestion notification (ecn)

D. resource reservation protocol

166. Voice privacy in GSM cellular telephone protocol is provided by

A. a5/2 cipher

B. b5/4 cipher

C. b5/6 cipher

D. b5/8 cipher

167. ElGamal encryption system is

A. symmetric key encryption algorithm

B. asymmetric key encryption algorithm

C. not an encryption algorithm

D. none of the mentioned

168. Cryptographic hash function takes an arbitrary block of data and returns

A. fixed size bit string

B. variable size bit string

C. both (a) and (b)

D. none of the mentioned

169. The attackers a network of compromised devices known as

A. internet

B. botnet

C. telnet

D. d-net

170. Which of the following is a form of DoS attack?

A. vulnerability attack

B. bandwidth flooding

C. connection flooding

D. all of the mentioned

171. The DoS attack is which the attacker establishes a large number of half-open or fully open TCP connections at the target host

A. vulnerability attack

B. bandwidth flooding

C. connection flooding

D. all of the mentioned

172. The DoS attack is which the attacker sends deluge of packets to the targeted host

A. vulnerability attack

B. bandwidth flooding

C. connection flooding

D. all of the mentioned

173. Packet sniffers involve

A. active receiver

B. passive receiver

C. both of the mentioned

D. none of the mentioned

174. Sniffers can be deployed in

A. wired environment

B. wifi

C. ethernet lan

D. all of the mentioned

175. Firewalls are often configured to block

A. udp traffic

B. tcp traffic

C. both of the mentioned

D. none of the mentioned

176. DHCP (dynamic host configuration protocol) provides _____ to the client.

A. ip address

B. mac address

C. url

D. none of the mentioned

177. DHCP is used for

A. ipv6

B. ipv4

C. both (a) and (b)

D. none of the mentioned

178. The DHCP server

A. maintains a database of available ip addresses

B. maintains the information about client configuration parameters

C. grants a ip address when receives a request from a client

D. all of the mentioned

179. IP assigned for a client by DHCP server is

A. for a limited period

B. for unlimited period

C. not time dependent

D. none of the mentioned

180. DHCP uses UDP port ____ for sending data to the server.

A. 66

B. 67

C. 68

D. 69

181. The DHCP server can provide the _______ of the IP addresses.

A. dynamic allocation

B. automatic allocation

C. static allocation

D. all of the mentioned

182. DHCP client and servers on the same subnet communicate via

A. udp broadcast

B. udp unicast

C. tcp broadcast

D. tcp unicast

183. After obtaining the IP address, to prevent the IP conflict the client may use

A. internet relay chat

B. broader gateway protocol

C. address resolution protocol

D. none of the mentioned

184. What is DHCP snooping?

A. techniques applied to ensure the security of an existing dhcp infrastructure

B. encryption of the dhcp server requests

C. algorithm for dhcp

D. none of the mentioned

185. If DHCP snooping is configured on a LAN switch, then clients having specific ______ can access the network.

A. mac address

B. ip address

C. both (a) and (b)

D. none of the mentioned

186. Real-time transport protocol (RTP) is mostly used in

A. streaming media

B. video teleconference

C. television services

D. all of the mentioned

187. RTP is used to

A. carry the media stream

B. monitor transmission statistics of streams

C. monitor quality of service of streams

D. none of the mentioned

188. RTP provides the facility of jitter ____ .

A. compensation

B. expansion

C. both (a) and (b)

D. none of the mentioned

189. Which protocol provides the synchronization between media streams?

A. rtp

B. rtcp

C. rpc

D. none of the mentioned

190. An RTP session is established for

A. each media stream

B. all media streams

C. some predefined number of media streams

D. none of the mentioned

191. RTP can use

A. unprivileged udp ports

B. stream control transmission protocol

C. datagram congestion control protocol

D. all of the mentioned

192. Which one of the following multimedia formats cannot be supported by RTP?

A. mpeg-4

B. mjpeg

C. mpeg

D. none of the mentioned

193. An RTP header has a minimum size of

A. 12 bytes

B. 16 bytes

C. 24 bytes

D. 32 bytes

194. Which one of the following is not correct?

A. rtcp provides canonical end-point identifiers to all session participants

B. rtcp reports are expected to be sent by all participants

C. both (a) and (b)

D. none of the mentioned

195. Which protocol defines a profile of RTP that provides cryptographic services for the transfer of payload data?

A. srtp

B. rtcp

C. rcp

D. none of the mentioned

196. Ping can

A. measure round-trip time

B. report packet loss

C. report latency

D. all of the mentioned

197. Suppose two IPv6 nodes want to interoperate using IPv6 datagrams but are connected to each other by intervening IPv4 routers. The best solution here is

A. use dual-stack approach

B. tunneling

C. no solution

D. replace the system

198. Ping sweep is a part of

A. traceroute

B. nmap

C. route

D. ipconfig

199. ICMP is used in

A. ping

B. traceroute

C. ifconfig

D. both a and b

200. _____ command is used to manipulate TCP/IP routing table.

A. route

B. ipconfig

C. ifconfig

D. traceroute

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