McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Electrical Engineering , Bachelor of Science in Computer Science TY (BSc CS) , Bachelor of Science in Information Technology FY (BSc IT) , Bachelor of Science in Information Technology SY (BSc IT) .
| 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 |
| Answer» B. digital subscriber line | |
| 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 |
| Answer» A. internet exchange point | |
| 153. |
Which one of the following protocol is not used in internet? |
| A. | http |
| B. | dhcp |
| C. | dns |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 154. |
IPv6 addressed have a size of |
| A. | 32 bits |
| B. | 64 bits |
| C. | 128 bits |
| D. | 265 bits |
| Answer» C. 128 bits | |
| 155. |
Internet works on |
| A. | packet switching |
| B. | circuit switching |
| C. | both (a) and (b) |
| D. | none of the mentioned |
| Answer» A. packet switching | |
| 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 |
| Answer» C. resource reservation protocol | |
| 157. |
Which protocol assigns IP address to the client connected in the internet? |
| A. | dhcp |
| B. | ip |
| C. | rpc |
| D. | none of the mentioned |
| Answer» A. dhcp | |
| 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 |
| Answer» 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 |
| Answer» A. algorithm for performing encryption and decryption | |
| 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 |
| Answer» B. receiver | |
| 161. |
Which one of the following algorithm is not used in asymmetric key cryptography? |
| A. | rsa algorithm |
| B. | diffie-hellman algorithm |
| C. | electronic code book algorithm |
| D. | none of the mentioned |
| Answer» C. electronic code book algorithm | |
| 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 |
| Answer» A. transpositional ciphers | |
| 163. |
What is data encryption standard (DES)? |
| A. | block cipher |
| B. | stream cipher |
| C. | bit cipher |
| D. | none of the mentioned |
| Answer» A. block cipher | |
| 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 |
| Answer» A. to find some insecurity in a cryptographic scheme | |
| 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 |
| Answer» B. transport layer security (tsl) | |
| 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 |
| Answer» A. a5/2 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 |
| Answer» B. asymmetric key encryption algorithm | |
| 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 |
| Answer» A. fixed size bit string | |
| 169. |
The attackers a network of compromised devices known as |
| A. | internet |
| B. | botnet |
| C. | telnet |
| D. | d-net |
| Answer» B. botnet | |
| 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 |
| Answer» 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 |
| Answer» C. connection flooding | |
| 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 |
| Answer» B. bandwidth flooding | |
| 173. |
Packet sniffers involve |
| A. | active receiver |
| B. | passive receiver |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» B. passive receiver | |
| 174. |
Sniffers can be deployed in |
| A. | wired environment |
| B. | wifi |
| C. | ethernet lan |
| D. | all of the mentioned |
| Answer» 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 |
| Answer» A. udp traffic | |
| 176. |
DHCP (dynamic host configuration protocol) provides _____ to the client. |
| A. | ip address |
| B. | mac address |
| C. | url |
| D. | none of the mentioned |
| Answer» A. ip address | |
| 177. |
DHCP is used for |
| A. | ipv6 |
| B. | ipv4 |
| C. | both (a) and (b) |
| D. | none of the mentioned |
| Answer» C. both (a) and (b) | |
| 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 |
| Answer» 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 |
| Answer» A. for a limited period | |
| 180. |
DHCP uses UDP port ____ for sending data to the server. |
| A. | 66 |
| B. | 67 |
| C. | 68 |
| D. | 69 |
| Answer» B. 67 | |
| 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 |
| Answer» 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 |
| Answer» A. udp broadcast | |
| 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 |
| Answer» C. address resolution protocol | |
| 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 |
| Answer» A. techniques applied to ensure the security of an existing dhcp infrastructure | |
| 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 |
| Answer» C. both (a) and (b) | |
| 186. |
Real-time transport protocol (RTP) is mostly used in |
| A. | streaming media |
| B. | video teleconference |
| C. | television services |
| D. | all of the mentioned |
| Answer» 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 |
| Answer» A. carry the media stream | |
| 188. |
RTP provides the facility of jitter ____ . |
| A. | compensation |
| B. | expansion |
| C. | both (a) and (b) |
| D. | none of the mentioned |
| Answer» A. compensation | |
| 189. |
Which protocol provides the synchronization between media streams? |
| A. | rtp |
| B. | rtcp |
| C. | rpc |
| D. | none of the mentioned |
| Answer» B. rtcp | |
| 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 |
| Answer» A. each media stream | |
| 191. |
RTP can use |
| A. | unprevileleged udp ports |
| B. | stream control transmission protocol |
| C. | datagram congestion control protocol |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 192. |
Which one of the following multimedia formats can not be supported by RTP? |
| A. | mpeg-4 |
| B. | mjpeg |
| C. | mpeg |
| D. | none of the mentioned |
| Answer» 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 |
| Answer» A. 12 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 |
| Answer» 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 |
| Answer» A. srtp | |
| 196. |
Ping can |
| A. | measure round-trip time |
| B. | report packet loss |
| C. | report latency |
| D. | all of the mentioned |
| Answer» 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 |
| Answer» B. tunneling | |
| 198. |
Ping sweep is a part of |
| A. | traceroute |
| B. | nmap |
| C. | route |
| D. | ipconfig |
| Answer» B. nmap | |
| 199. |
ICMP is used in |
| A. | ping |
| B. | traceroute |
| C. | ifconfig |
| D. | both a and b |
| Answer» D. both a and b | |
| 200. |
_____ command is used to manipulate TCP/IP routing table. |
| A. | route |
| B. | ipconfig |
| C. | ifconfig |
| D. | traceroute |
| Answer» A. route | |
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