Which of the following internet protocols allows us to access the data over the World Wide Web?
- A.DNS
- B.SNMP
- C.HTTP
- D.FTP
Correct answer
Explanation
The correct answer is C, HTTP. HTTP stands for HyperText Transfer Protocol and it is the set of rules by which a browser asks a web server for a page and the server sends it back, which is how data on the World Wide Web is reached. It was developed by Tim Berners-Lee, who also created the World Wide Web in 1989, and it works on port 80, while its secure form HTTPS uses encryption and port 443. A is wrong because DNS, the Domain Name System, only turns a name such as gk24.in into the numeric IP address of the server. B is wrong because SNMP, the Simple Network Management Protocol, is used by administrators to watch and manage routers, switches and other network devices. D is wrong because FTP, the File Transfer Protocol, moves whole files between a computer and a server rather than serving web pages. Exam tip: HTTP for web pages, FTP for file transfer, SMTP to send mail, POP3 and IMAP to receive it.
Practice Questions
View allWhich language uses the symbolic representation of machine codes needed to program a particular processor or processor family?
- A.Machine Language
- B.Assembly Language
- C.High-Level Language
- D.All of the above
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Assembly language replaces the binary machine codes of a processor with short symbols called mnemonics, such as MOV, ADD and JMP.
Read the full explanation →Which one of the following is the characteristic of Artificial Intelligence ?
- A.Replicates human decision making
- B.Stores relevant information
- C.Stores similar kind of data for a specific purpose
- D.Allows user to interact with media
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Artificial Intelligence is the ability of a machine to perform tasks that normally need human intelligence, such as reasoning, learning and taking decisions.
Read the full explanation →What is an interactive combination of text, graphics, video, audio and images termed as ?
- A.JPEG
- B.Multimedia
- C.AVA
- D.PNG
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Multimedia means using several forms of media, such as text, graphics, audio, video, images and animation, together, often in a way the user can interact with.
Read the full explanation →Which among the following is a malicious software?
- A.Hacking
- B.Password Cracking
- C.Trojan Horse
- D.Firewall
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A Trojan is a program that looks useful or harmless but secretly carries harmful code, so it is a piece of malicious software, or malware.
Read the full explanation →Which one of the following is not an application software?
- A.Spreadsheet
- B.AutoCAD
- C.MS PowerPoint
- D.Linker
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A linker is system software, a programming tool that joins compiled pieces of code into one program that can run; it does not do a task for the end user.
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