McqMate
| 101. |
HTTP client requests by establishing a __________ connection to a particular port on the server. |
| A. | user datagram protocol |
| B. | transmission control protocol |
| C. | broader gateway protocol |
| D. | none of the mentioned |
| Answer» B. transmission control protocol | |
| 102. |
In HTTP pipelining |
| A. | multiple http requests are sent on a single tcp connection without waiting for the corresponding responses |
| B. | multiple http requests can not be sent on a single tcp connection |
| C. | multiple http requests are sent in a queue on a single tcp connection |
| D. | none of the mentioned |
| Answer» A. multiple http requests are sent on a single tcp connection without waiting for the corresponding responses | |
| 103. |
FTP server listens for connection on port number |
| A. | 20 |
| B. | 21 |
| C. | 22 |
| D. | 23 |
| Answer» B. 21 | |
| 104. |
In FTP protocol, client contacts server using ____ as the transport protocol. |
| A. | transmission control protocol |
| B. | user datagram protocol |
| C. | datagram congestion control protocol |
| D. | stream control transmission protocol |
| Answer» A. transmission control protocol | |
| 105. |
In which mode FTP, the client initiates both the control and data connections. |
| A. | active mode |
| B. | passive mode |
| C. | both (a) and (b) |
| D. | none of the mentioned |
| Answer» B. passive mode | |
| 106. |
The file transfer protocol is built on |
| A. | data centric architecture |
| B. | service oriented architecture |
| C. | client server architecture |
| D. | none of the mentioned |
| Answer» C. client server architecture | |
| 107. |
In file transfer protocol, data transfer can be done in |
| A. | stream mode |
| B. | block mode |
| C. | compressed mode |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 108. |
Ethernet frame consists of |
| A. | mac address |
| B. | ip address |
| C. | both (a) and (b) |
| D. | none of the mentioned |
| Answer» A. mac address | |
| 109. |
What is stat frame delimeter (SFD) in ethernet frame? |
| A. | 10101010 |
| B. | 10101011 |
| C. | 00000000 |
| D. | 11111111 |
| Answer» B. 10101011 | |
| 110. |
What is autonegotiation? |
| A. | a procedure by which two connected devices choose common transmission parameters |
| B. | a security algorithm |
| C. | a routing algorithm |
| D. | none of the mentioned |
| Answer» A. a procedure by which two connected devices choose common transmission parameters | |
| 111. |
Ethernet in metropolitan area network (MAN) can be used as |
| A. | pure ethernet |
| B. | ethernet over sdh |
| C. | ethernet over mpls |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 112. |
A point-to-point protocol over ethernet is a network protocol for |
| A. | encapsulating ppp frames inside ethernet frames |
| B. | encapsulating ehternet framse inside ppp frames |
| C. | for security of ethernet frames |
| D. | for security of ppp frames |
| Answer» A. encapsulating ppp frames inside ethernet frames | |
| 113. |
High speed ethernet works on |
| A. | coaxial cable |
| B. | twisted pair cable |
| C. | optical fiber |
| D. | none of the mentioned |
| Answer» C. optical fiber | |
| 114. |
The maximum size of payload field in ethernet frame is |
| A. | 1000 bytes |
| B. | 1200 bytes |
| C. | 1300 bytes |
| D. | 1500 bytes |
| Answer» D. 1500 bytes | |
| 115. |
What is interframe gap? |
| A. | idle time between frames |
| B. | idle time between frame bits |
| C. | idle time between packets |
| D. | none of the mentioned |
| Answer» A. idle time between frames | |
| 116. |
An ethernet frame that is less than the IEEE 802.3 minimum length of 64 octets is called |
| A. | short frame |
| B. | run frame |
| C. | mini frame |
| D. | man frame |
| Answer» B. run frame | |
| 117. |
Which of this is not a constituent of residential telephone line? |
| A. | a high-speed downstream channel |
| B. | a medium-speed downstream channel |
| C. | a low-speed downstream channel |
| D. | none of the mentioned |
| Answer» C. a low-speed downstream channel | |
| 118. |
In DSL telco provides these services |
| A. | wired phone access |
| B. | isp |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» C. all of the mentioned | |
| 119. |
The function of DSLAM is |
| A. | convert analog signals into digital signals |
| B. | convert digital signals into analog signals |
| C. | amplify digital signals |
| D. | none of the mentioned |
| Answer» A. convert analog signals into digital signals | |
| 120. |
The following term is not associted with DSL |
| A. | dslam |
| B. | co |
| C. | splitter |
| D. | cmts |
| Answer» D. cmts | |
| 121. |
HFC contains |
| A. | fibre cable |
| B. | coaxial cable |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» C. both of the mentioned | |
| 122. |
Choose the statement which is not applicable for cable internet access |
| A. | it is a shared broadcast medium |
| B. | it includes hfcs |
| C. | cable modem connects home pc to ethernet port |
| D. | analog signal is converted to digital signal in dslam |
| Answer» D. analog signal is converted to digital signal in dslam | |
| 123. |
Among the optical-distribution architectures that is essentially switched ehternet is |
| A. | aon |
| B. | pon |
| C. | non |
| D. | none of the mentioned |
| Answer» A. aon | |
| 124. |
StarBand provides |
| A. | ftth internet access |
| B. | cable access |
| C. | telephone access |
| D. | satellite access |
| Answer» D. satellite access | |
| 125. |
Home Access is provided by |
| A. | dsl |
| B. | fttp |
| C. | cable |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 126. |
ONT is connected to splitter using |
| A. | high speed fibre cable |
| B. | hfc |
| C. | optical cable |
| D. | none of the mentioned |
| Answer» C. optical cable | |
| 127. |
The sharing of a medium and its link by two or more devices is called _______ |
| A. | fully duplexing |
| B. | multiplexing |
| C. | both a and b |
| D. | none of the mentioned |
| Answer» B. multiplexing | |
| 128. |
Multiplexing is used in _______ |
| A. | packet switching |
| B. | circuit switching |
| C. | data switching |
| D. | none of the mentioned |
| Answer» B. circuit switching | |
| 129. |
Which multiplexing technique transmits digital signals ? |
| A. | fdm |
| B. | tdm |
| C. | wdm |
| D. | none of the mentioned |
| Answer» B. tdm | |
| 130. |
If there are n signal sources of same data rate than TDM link has _______ slots |
| A. | n |
| B. | n/2 |
| C. | n*2 |
| D. | 2^n |
| Answer» A. n | |
| 131. |
If link transmits 4000frames per second, and each slot has 8 bits,the transmission rate of circuit this TDM is |
| A. | 32kbps |
| B. | 500bps |
| C. | 500kbps |
| D. | none of the mentioned |
| Answer» A. 32kbps | |
| 132. |
The state when dedicated signals are idle are called |
| A. | death period |
| B. | poison period |
| C. | silent period |
| D. | none of the mentioned |
| Answer» C. silent period | |
| 133. |
Multiplexing can provide |
| A. | efficiency |
| B. | privacy |
| C. | anti jamming |
| D. | both a and b |
| Answer» D. both a and b | |
| 134. |
In TDM, the transmission rate of the multiplexed path is usually _______ the sum of the transmission rates of the signal sources. |
| A. | greater than |
| B. | lesser than |
| C. | equal to |
| D. | equal to or greater than |
| Answer» A. greater than | |
| 135. |
In TDM, slots are further divided into |
| A. | seconds |
| B. | frames |
| C. | packets |
| D. | none of the mentioned |
| Answer» B. frames | |
| 136. |
Multiplexing technique that shifts each signal to a different carrier frequency |
| A. | fdm |
| B. | tdm |
| C. | either a or b |
| D. | both a and b |
| Answer» A. fdm | |
| 137. |
Physical or logical arrangement of network is |
| A. | topology |
| B. | routing |
| C. | networking |
| D. | none of the mentioned |
| Answer» A. topology | |
| 138. |
In this topology there is a central controller or hub |
| A. | star |
| B. | mesh |
| C. | ring |
| D. | bus |
| Answer» A. star | |
| 139. |
This topology requires multipoint connection |
| A. | star |
| B. | mesh |
| C. | ring |
| D. | bus |
| Answer» D. bus | |
| 140. |
Data communication system spanning states, countries, or the whole world is |
| A. | lan |
| B. | wan |
| C. | man |
| D. | none of the mentioned |
| Answer» B. wan | |
| 141. |
Data communication system within a building or campus is |
| A. | lan |
| B. | wan |
| C. | man |
| D. | none of the mentioned |
| Answer» A. lan | |
| 142. |
Expand WAN |
| A. | world area network |
| B. | wide area network |
| C. | web area network |
| D. | none of the mentioned |
| Answer» B. wide area network | |
| 143. |
A local telephone network is an example of a _______ network |
| A. | packet switched |
| B. | circuit switched |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» B. circuit switched | |
| 144. |
Most packet switches use this principle |
| A. | stop and wait |
| B. | store and forward |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» B. store and forward | |
| 145. |
If there are N routers from source to destination, total end to end delay in sending packet P(L->number of bits in the packet R-> transmission rate) |
| A. | n |
| B. | (n*l)/r |
| C. | (2n*l)/r |
| D. | l/r |
| Answer» B. (n*l)/r | |
| 146. |
Method(s) to move data through a network of links and switches |
| A. | packet switching |
| B. | circuit switching |
| C. | line switching |
| D. | both a and b |
| Answer» D. both a and b | |
| 147. |
The resources needed for communication between end systems are reserved for the duration of session between end systems in ________ |
| A. | packet switching |
| B. | circuit switching |
| C. | line switching |
| D. | frequency switching |
| Answer» B. circuit switching | |
| 148. |
As the resouces are reserved between two communicating end systems in circuit switching, this is achieved |
| A. | authentication |
| B. | guaranteed constant rate |
| C. | reliability |
| D. | store and forward |
| Answer» B. guaranteed constant rate | |
| 149. |
What is internet? |
| A. | a single network |
| B. | a vast collection of different networks |
| C. | interconnection of local area networks |
| D. | none of the mentioned |
| Answer» B. a vast collection of different networks | |
| 150. |
To join the internet, the computer has to be connected to a |
| A. | internet architecture board |
| B. | internet society |
| C. | internet service provider |
| D. | none of the mentioned |
| Answer» C. internet service provider | |
| 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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