Computer Internet Questions and Answers

Answer: C

The document is said to be valid.

An XML document is valid when it conforms to its Document Type Definition (or schema): its elements and attributes are those the DTD declares, in the permitted structure.

A well-formed document merely follows XML's syntax rules (properly nested tags, a single root, quoted attributes) whether or not it matches a DTD. 'Reasonable' and 'logical' are not XML terms.

Answer: B

The one that is not an HTML tag is < list >.

HTML builds lists with ul (unordered), ol (ordered) and li (list item); there is no list element.

The other three are form controls: select makes a drop-down list, input makes a field or button, and textarea makes a multi-line text box.

A frequent trap is to treat any plausible word in angle brackets as a tag; checking against the elements actually defined by the HTML standard settles it.

Answer: D

The answer is All (I), (II) and (III) above.

All three statements are true. The window object is the global, top-level object of client-side JavaScript, and the others are its properties. The navigator object describes the browser (name, version, platform), which is why it was used for browser sniffing. The document object gives access to the page being viewed, the entry point to the DOM.

Since every statement holds, the options naming only one are incomplete.

Answer: C

gov. stands for government and in means India.

In a domain name such as tpsc.tripura.gov.in, the last part, .in, is the country code top-level domain assigned to India. The .gov label in front of it is the second-level domain reserved for government bodies, so .gov.in marks an Indian government website.

The options that read 'in' as 'inside' misunderstand the country code, and 'governing body' is not what gov stands for.

Answer: A

The string is the IP address.

Every device on the Internet has an Internet Protocol address. In IPv4 it is written as four numbers from 0 to 255 separated by dots, such as 192.168.1.1, which is the four-part string the question describes.

A domain name such as tpsc.tripura.gov.in and a host name are human-readable labels. The Domain Name System translates them into IP addresses, so they are not the numeric identifier itself.

Answer: A

An IP address is a unique address assigned to computer when it is connected to internet.

The Internet Protocol address identifies a device on a network so that data can be sent to it and received from it, much as a postal address identifies a house.

The address is not itself a protocol: the Internet Protocol is the set of rules for addressing and routing data, and the IP address is the identifier those rules use. Nor is it a programmable device.

Answer: D

The image MIME type is JPEG.

MIME types are written as type/subtype. JPEG images are labelled image/jpeg, the image type among the options.

MP4 and MPEG are video formats (video/mp4, video/mpeg). XML is a text-based markup format, labelled application/xml or text/xml. None of these is an image type.

Answer: B

The key's answer is Scripting Language.

Strictly, HTML is a markup language: its tags describe the structure of a web page, and it has no variables, loops or logic. That category is not among the options, and the paper's key takes 'Scripting Language' in the loose sense of a text language that a browser reads and interprets.

The other options are plainly wrong: HTML is not a general programming language, a web browser is the program that displays HTML, and the network protocol that carries it is HTTP.

Answer: C

XLL is used to specify the links with other documents.

XLL, the Extensible Linking Language, was the W3C's linking specification for XML; it developed into XLink, which defines links between resources, and XPointer, which addresses parts of a document.

Data types and structure are specified with a DTD or XML Schema, and presentation with XSL or CSS, so those options belong to other specifications.

Answer: C

The Internet stands for Interconnected Network.

The word comes from internetwork: the Internet is a network of networks, millions of separate networks interconnected through the TCP/IP protocols so that any computer on one can reach computers on the others.

'Internal network' describes a private intranet, the opposite idea. 'International' and 'Intercontinental' describe its reach, not what the name stands for.