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Paper - II (xii) — Internet of things and its application MCQ - Practice Questions with Answers

Solve 56 Paper - II (xii) — Internet of things and its application questions for RAS/RPSC preparation.

Practice questions

Q1A user writes an e-mail in a mail client while the Internet connection is unavailable. What generally happens when the user clicks Send in offline mode?

A The mail is delivered immediately because SMTP does not require a network connection.
B The mail is kept in an outbox or local queue and sent when the client reconnects to the mail server.
C The mail is converted into a web page and published automatically.
D The mail is permanently deleted because offline messaging never stores drafts or outgoing mail.
Explanation

Online messaging requires an active network path to the service or mail server. Offline-capable mail clients can still let the user compose a message and place it in an outbox or queue. Actual transfer through protocols such as SMTP happens after the client regains connectivity.

Q2Which option correctly matches a common multimedia or graphics file type with its usual use?

A TXT for compressed photographic images on a web gallery
B SVG for scalable vector graphics and JPEG for compressed photographs
C EXE for embedding vector graphics directly in an HTML image tag
D CSV for live audio compression in voice mail
Explanation

Multimedia files are chosen according to the media type and required quality. Vector formats such as SVG suit scalable diagrams and icons, while JPEG is commonly used for photographic images where lossy compression can reduce file size.

Q3Which example best illustrates offline messaging in contrast to online real-time messaging?

A A user composes a message while disconnected and the application sends it when connectivity returns.
B A video meeting is started so every participant can see and hear one another live.
C A browser refreshes a web page every second to show stock prices.
D Both users must remain connected at the same time and type replies instantly.
Explanation

Online messaging expects active connectivity and often near-real-time delivery. Offline messaging stores or queues the message locally or on a server so that it can be sent or received later when the user or network becomes available.

Q4In the normal operation of a search engine, which sequence best describes how a newly published public web page becomes searchable?

A The web server converts the page into XML, and the search engine automatically accepts its ranking.
B The browser cache alone submits the page directly to the payment gateway.
C The page owner emails the page to every user, and the browser stores it permanently.
D A crawler discovers the URL, the page is processed for indexing, and ranking systems later serve relevant results.
Explanation

A search service discovers pages through crawling, stores and processes discovered information in an index, and uses ranking systems when a user enters a query. Files such as robots.txt can influence crawling access, while noindex is used when a page should be kept out of the index.

Q5Which example is the clearest case of business-to-consumer e-commerce?

A An online retailer accepting an order from an individual customer through its website
B A router translating a private IP address into a public IP address
C A DNS server returning the IP address for a domain name
D A browser saving a page in offline reading mode
Explanation

E-commerce concerns the sale or purchase of goods or services through computer networks. In B2C e-commerce, the seller is a business and the buyer is an individual consumer, as in a retail website taking a customer's order.

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More questions

6For a website logo that must remain sharp at different screen sizes, which multimedia/graphics format is generally the best choice?

AA plain text file with no markup
BA low-resolution bitmap enlarged by the browser
CA high-compression MP3 file
DAn SVG vector graphic

7A web form should check that the mobile-number field is not left blank before the form is submitted. Which technology is commonly used on the client side to add such interactivity?

APNG
BSMTP
CJavaScript
DPOP3

8Which option correctly distinguishes voice mail from video conferencing?

AVoice mail is a markup language, while video conferencing is a file-compression algorithm.
BVoice mail stores an audio message for later access, while video conferencing supports live audio-video interaction.
CVoice mail is used only for web publishing, while video conferencing is used only for search indexing.
DVoice mail always requires all participants to be online together, while video conferencing is always offline.

9A user wants to find official information on a government portal but knows only a few keywords. Which service is specifically designed to index web pages and retrieve matching results?

AXML parser
BWeb browser
CSearch engine
DVoicemail server

10During website maintenance, a school wants to change the visual style of all pages without rewriting each page's content. Which practice is most suitable?

AUse a shared external style sheet and update the common style rules
BMove all pages from the server to a private offline folder permanently
CReplace every HTML tag with an email address
DDelete the web server logs and keep the old files unchanged

11Which condition is required for an XML document to be well-formed?

AIt must contain only numeric data values.
BIt must use JavaScript for every element.
CIt must have properly nested elements with matching start and end tags.
DIt must be written only inside an HTML <body> element.

12Which statement best differentiates HTML and XML in basic website and data-exchange usage?

AXML is a transport-layer protocol, while HTML is a routing protocol.
BHTML is used only for encrypting web traffic, while XML is used only for drawing bitmap images.
CHTML defines fixed presentation-oriented page elements, while XML is an extensible markup format for structured data.
DHTML and XML both require the same predefined tags and cannot be parsed by software.

13Which activity is most directly performed by a search engine crawler before users see search results?

AIt follows links, fetches web pages, and feeds page content into the search engine's index.
BIt guarantees that every indexed web page is legally accurate and up to date.
CIt physically repairs broken network cables between web servers.
DIt converts the user's typed query into an e-mail message for website owners.

14In website creation and maintenance, which practice best supports reliable updates without unexpectedly breaking the public website?

APublish every change directly to the production server without checking links or scripts.
BTest changes in a separate staging or local environment before publishing them to the live site.
CUse only image files for all text so that no HTML needs to be maintained.
DDelete old files first and then decide whether replacement files are needed.

15Which protocol is primarily associated with transferring outgoing e-mail from a mail client or mail server toward the recipient side?

AFTP
BIMAP
CSMTP
DPOP3

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