Computer Internet Questions and Answers

Answer: B

Teams was developed by Microsoft.

Microsoft Teams, launched in 2017 as part of Microsoft 365, combines chat, video meetings, file storage and sharing, and integration with apps such as Word, Excel and SharePoint in one workspace.

Google's comparable tools are Google Meet and Google Chat; Apple makes FaceTime; and Acrobat is not a company but Adobe's PDF software.

Answer: A

'bcc' means Blind carbon copy.

Recipients in the Bcc field receive the e-mail, but their addresses are hidden from all other recipients. It is used, for instance, to send one message to many people without revealing their addresses to each other.

'Cc' (carbon copy) recipients are visible to everyone. The term comes from carbon paper, used to make copies of typed letters. 'Bonus', 'Boot' and 'Besides' are not the expansion.

Answer: D

The one that is not a virtual assistant is Microsoft Edge.

Microsoft Edge is a web browser. It is used to view web pages, not to respond to voice commands.

Amazon Alexa, Google Assistant and Apple Siri are voice-controlled virtual assistants that answer questions, set reminders, play music and control smart-home devices. Microsoft's own assistant was Cortana, not Edge.

Answer: A

The card to link is the Aadhaar Card.

DigiLocker, the government's digital document wallet, uses Aadhaar to verify the user's identity, usually through an OTP sent to the Aadhaar-linked mobile number. Linking Aadhaar lets the user fetch issued documents, such as driving licences, marksheets and PAN, directly from the issuing agencies.

A PAN card, voter card or school ID can be stored in DigiLocker, but linking them is not what enables the service; Aadhaar-based verification is.

Answer: C

The one that is not cloud storage is Microsoft Edge.

Microsoft Edge is a web browser. It can be used to reach cloud services, but it does not store files itself.

Google Drive and pCloud are cloud storage services for files, and Microsoft Azure is a cloud computing platform whose services include cloud storage (such as Azure Blob Storage).

Answer: D

Correct answer: Transferring data from a remote server to your own device

Downloading is transferring data from a remote computer to your own; uploading is the reverse. The direction is defined from the user’s point of view. The distinction matters practically because most consumer connections are asymmetric: download speeds are far higher than upload speeds, on the reasoning that people consume more than they publish. That is why sending a large attachment or backing up to the cloud takes disproportionately long, and why video calls, which need upload capacity, suffer on a connection that downloads perfectly well. The terms come from the era of mainframes, where a central machine was thought of as being above the terminals attached to it - data came down from it and went up to it. Streaming is a particular kind of downloading in which the content is played as it arrives rather than stored complete before use.

Answer: C

Correct answer: Google

Google is a search engine: a service that indexes web pages and returns those matching a query. Bing, DuckDuckGo and Yahoo are others. The distractors are each a different kind of software, and the confusion between them is exactly what the question tests. Chrome is a web browser, the program that fetches and displays pages - and although it defaults to Google search, the two are distinct products. Windows is an operating system. Gmail is a webmail service. A search engine works in three stages: a crawler follows links to discover pages, an indexer builds a searchable structure from their content, and a ranking algorithm orders the results. Google’s original contribution was PageRank, which judged a page’s importance by the pages linking to it. The part of the web reachable this way is the surface web; content behind logins and forms is the deep web.

Answer: B

Correct answer: It is used for live conferencing

Video conferencing carries live picture and sound between two or more places at once, so a meeting can be held without the participants travelling. Ordinary communication and talking are what it is a particular form of, not what distinguishes it.

Answer: B

Correct answer: one, multiple

Multiplexing shares one physical path among multiple logical channels. That is the whole point: one expensive link carries many conversations.

Answer: C

Correct answer: It encrypts the connection so data cannot be read or altered in transit

HTTPS is HTTP carried inside a TLS-encrypted connection. It provides three things: confidentiality, so the traffic cannot be read; integrity, so it cannot be altered undetected; and authentication, so the browser can verify it is talking to the genuine site. The authentication rests on a certificate issued by a certificate authority, binding a public key to a domain name. The browser checks the signature chain and shows a padlock when it succeeds - and a warning when it does not, which is why certificate errors should never be clicked past. A point worth understanding: the padlock proves the connection is secure and that the site is who its certificate says. It does not prove the site is trustworthy, and phishing sites routinely use valid certificates. HTTPS is now the default; browsers mark plain HTTP as insecure, and free certificates from Let’s Encrypt removed the cost barrier.