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This section includes 254 Mcqs, each offering curated multiple-choice questions to sharpen your Internet of things (IoT) knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The _______ field in the SNMP PDU is an offset that points to the variable in error. |
| A. | community |
| B. | enterprise |
| C. | error index |
| D. | none of the above |
| Answer» D. none of the above | |
| 152. |
The first phase of JPEG is ___________. |
| A. | DCT transformation |
| B. | quantization |
| C. | data compression |
| D. | none of the above |
| Answer» B. quantization | |
| 153. |
The _______ data types are atomic data types. |
| A. | structure |
| B. | simple |
| C. | both a and b |
| D. | none of the above |
| Answer» C. both a and b | |
| 154. |
_______ is a standard to allow telephones on the public telephone network to talk to computers connected to the Internet. |
| A. | SIP |
| B. | H.323 |
| C. | Q.991 |
| D. | none of the above |
| Answer» C. Q.991 | |
| 155. |
In File Transfer Protocol (FTP), while the control connection is open, the data connection can be opened and closed |
| A. | One time |
| B. | Several Times |
| C. | Not even Once |
| D. | None of the given |
| Answer» D. None of the given | |
| 156. |
Jitter is introduced in real-time data by the _______________. |
| A. | error caused during transmission |
| B. | delay between packets |
| C. | both a and b |
| D. | none of the above |
| Answer» C. both a and b | |
| 157. |
___________ audio/video refers to the broadcasting of radio and TV programs through the Internet. |
| A. | Interactive |
| B. | Streaming live |
| C. | Streaming stored |
| D. | none of the above |
| Answer» C. Streaming stored | |
| 158. |
Using POP3, the e-mails are stored at ................. |
| A. | Users’ PC |
| B. | Router |
| C. | Gateway |
| D. | Server |
| Answer» B. Router | |
| 159. |
A file is being transferred. The time required actually is 6- hours. The mean time between crashes is 2-hours. The time required for the transfer is hours if synchronization is not provided. |
| A. | 12 hours |
| B. | 3 hours |
| C. | Zero hours |
| D. | Infinite |
| Answer» E. | |
| 160. |
____________ is used to compress video. |
| A. | MPEG |
| B. | JPEG |
| C. | either a or b |
| D. | none of the above |
| Answer» B. JPEG | |
| 161. |
At the beginning of the Internet era, the messages sent by electronic mail were short and consisted of |
| A. | Images Only |
| B. | Strings only |
| C. | Text Only |
| D. | Numbers Only |
| Answer» D. Numbers Only | |
| 162. |
An SNMP agent can send _______ messages. |
| A. | Response |
| B. | GetRequest |
| C. | SetRequest |
| D. | none of the above |
| Answer» B. GetRequest | |
| 163. |
____________ is used to compress images. |
| A. | MPEG |
| B. | JPEG |
| C. | either a or b |
| D. | none of the above |
| Answer» C. either a or b | |
| 164. |
We can compare the task of network management to the task of writing a program. Both tasks have actions performed by statements. In network management this is handled by _______. |
| A. | SMNP |
| B. | MIB |
| C. | SMI |
| D. | none of the above |
| Answer» B. MIB | |
| 165. |
The _______ field in the SNMP PDU consists of a sequence of variables and their corresponding values. |
| A. | version |
| B. | community |
| C. | VarBindList |
| D. | none of the above |
| Answer» D. none of the above | |
| 166. |
To distinguish data from control characters, each sequence of control characters is preceded by a special control character called ________. |
| A. | ICA |
| B. | IAC |
| C. | AIC |
| D. | none of the above |
| Answer» C. AIC | |
| 167. |
RTCP uses an odd-numbered _______ port number that follows the port number selected for RTP. |
| A. | UDP |
| B. | TCP |
| C. | both a and b |
| D. | none of the above |
| Answer» B. TCP | |
| 168. |
___________ is a protocol for controlling the flow and quality of data. |
| A. | RTP |
| B. | RTCP |
| C. | UDP |
| D. | none of the above |
| Answer» C. UDP | |
| 169. |
The command of End-of-File in the UNIX operating system is |
| A. | Ctrl+E |
| B. | Ctrl+v |
| C. | Ctrl+u |
| D. | Ctrl+d |
| Answer» E. | |
| 170. |
When the sender and the receiver of an e-mail are on the same system, we need only two |
| A. | IP |
| B. | Domain |
| C. | Servers |
| D. | User Agents |
| Answer» E. | |
| 171. |
To define the data type, SMI uses fundamental _______ definitions and adds some new definitions. |
| A. | AMS.1 |
| B. | ASN.1 |
| C. | ASN.2 |
| D. | none of the above |
| Answer» C. ASN.2 | |
| 172. |
The chunk of information at the application layer is called |
| A. | Packet |
| B. | Message |
| C. | Segment |
| D. | Frame |
| Answer» C. Segment | |
| 173. |
What is the port number for Gopher services? |
| A. | 23 |
| B. | 70 |
| C. | 80 |
| D. | 71 |
| Answer» C. 80 | |
| 174. |
In EMAIL, We need two VAs and two pairs of MTAs, When the sender is connected to the mail server via |
| A. | MTA and VTA |
| B. | LAN and WAN |
| C. | IP and TCP |
| D. | Host and IP |
| Answer» C. IP and TCP | |
| 175. |
What is the port number of the SMTP ? |
| A. | 25 |
| B. | 23 |
| C. | 20/21 |
| D. | 27960 |
| Answer» B. 23 | |
| 176. |
The Response PDU is sent from the ______ to the ______ in response to GetRequest or GetNextRequest. |
| A. | server; client |
| B. | client; server |
| C. | network; host |
| D. | none of the above |
| Answer» B. client; server | |
| 177. |
We can compare the task of network management to the task of writing a program. Both tasks need variable declarations. In network management this is handled by _________. |
| A. | SMNP |
| B. | MIB |
| C. | SMI |
| D. | none of the above |
| Answer» C. SMI | |
| 178. |
Protocol used for electronic mail? |
| A. | TELNET |
| B. | NNTP |
| C. | HTTP |
| D. | SMTP |
| Answer» E. | |
| 179. |
If the sender wants to enable an option, it sends a _______ command. |
| A. | WILL |
| B. | DO |
| C. | WONT |
| D. | none of the above |
| Answer» B. DO | |
| 180. |
Real-time traffic needs the support of ____________. |
| A. | broadcasting |
| B. | multicasting |
| C. | both a and b |
| D. | none of the above |
| Answer» C. both a and b | |
| 181. |
RTP uses a temporary even-numbered _______ port. |
| A. | UDP |
| B. | TCP |
| C. | both a and b |
| D. | none of the above |
| Answer» B. TCP | |
| 182. |
What is the port number of the HTTP ? |
| A. | 80 |
| B. | 25 |
| C. | 23 |
| D. | 20/21 |
| Answer» B. 25 | |
| 183. |
When there is more than one source, the _______ identifier defines the mixer. |
| A. | synchronization source |
| B. | contributor |
| C. | timestamp |
| D. | none of the above |
| Answer» B. contributor | |
| 184. |
Example of command-driven user agents are |
| A. | |
| B. | pine |
| C. | elm |
| D. | All of them |
| Answer» E. | |
| 185. |
A _______ changes the format of a high-bandwidth video signal to a lower quality narrow-bandwidth signal. |
| A. | timestamp |
| B. | sequence number |
| C. | translator |
| D. | none of the above |
| Answer» D. none of the above | |
| 186. |
The program that accepts the commands for composing, receiving and replying to messages, as well as for manipulating mail boxes is ..................... |
| A. | user agent |
| B. | browser agent |
| C. | message transfer agent |
| D. | server agent |
| Answer» B. browser agent | |
| 187. |
FTP copies a file from |
| A. | node to node |
| B. | one host to another |
| C. | from servers |
| D. | one network to other |
| Answer» C. from servers | |
| 188. |
An RTP packet is encapsulated in _______. |
| A. | a UDP user datagram |
| B. | a TCP segment |
| C. | an IP datagram |
| D. | none of the above |
| Answer» B. a TCP segment | |
| 189. |
A __________on each packet is required for real-time traffic. |
| A. | timestamp |
| B. | sequence number |
| C. | both a and b |
| D. | none of the above |
| Answer» D. none of the above | |
| 190. |
TELNET uses only one TCP connection. The server uses ________ port and the client uses ________ port. |
| A. | a well-known; another well-known |
| B. | an ephemeral; another ephemeral |
| C. | a well-known; an ephemeral |
| D. | none of the above |
| Answer» D. none of the above | |
| 191. |
File Transfer Protocol (FTP), uses the well-known port 21 is used for the control connection and port 20 for the |
| A. | Data Rate |
| B. | Data Connection |
| C. | Data Protocol |
| D. | Data Congestion |
| Answer» C. Data Protocol | |
| 192. |
The third phase of JPEG is ___________. |
| A. | DCT transformation |
| B. | quantization |
| C. | data compression |
| D. | none of the above |
| Answer» D. none of the above | |
| 193. |
___________ is an application protocol that establishes, manages, and terminates a multimedia session. |
| A. | RIP |
| B. | SIP |
| C. | DIP |
| D. | none of the above |
| Answer» C. DIP | |
| 194. |
When the sender and the receiver of an e-mail are on different systems, we need two VAs and a pair of |
| A. | MTA |
| B. | VTA |
| C. | IP |
| D. | TCP |
| Answer» B. VTA | |
| 195. |
The correct syntax for accessing the telnet is |
| A. | telnet//www.example.com |
| B. | telnet:www.example.com |
| C. | telnet://www.example.com |
| D. | telnet www.example.com |
| Answer» D. telnet www.example.com | |
| 196. |
This is an application protocol that uses the Internet's TCP/IP protocols to transfer Web page files to a server. It's also used to download programs and other files from a server to your computer. |
| A. | FTP |
| B. | HTTP |
| C. | DNS |
| D. | Telnet |
| Answer» B. HTTP | |
| 197. |
_______ allows you to connect and login to a remote computer. |
| A. | Telnet |
| B. | FTP |
| C. | HTTP |
| D. | None of the mentioned |
| Answer» B. FTP | |
| 198. |
Which one of the following is not correct regarding telent? |
| A. | telnet is a general purpose client-server program |
| B. | telnet lets user access an application on a remote computer |
| C. | telnet can also be used for file transfer |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 199. |
Which of the following is/are Protocols of Application layer? |
| A. | FTP |
| B. | DNS |
| C. | Telnet |
| D. | All of above |
| Answer» E. | |
| 200. |
If 5 files are transferred from server A to client B in the same session. The number of TCP connection between A and B is |
| A. | 5 |
| B. | 10 |
| C. | 2 |
| D. | 6 |
| Answer» E. | |