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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. | |