🌐 Internet & Networking इंटरनेट और नेटवर्किंग
40 exam-ready facts · 40 MCQs
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1
Tim Berners-Lee invented the World Wide Web (WWW) at CERN in 1989.
The Internet and the WWW differ: the Internet is a network of networks, while the WWW is the system of web pages (HTTP, HTML, URL) that runs on it.
Practice (1)
Q1Who invented the World Wide Web (WWW)?
Show answer
Correct answer: B — Tim Berners-Lee
Tim Berners-Lee proposed the WWW at CERN in 1989. Vint Cerf is associated with TCP/IP. -
2
Ray Tomlinson sent the first network email over ARPANET in 1971 and introduced the @ sign in email addresses.
Practice (1)
Q2Who introduced the '@' sign in email addresses?
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Correct answer: B — Ray Tomlinson
Ray Tomlinson chose @ in 1971 to separate the user name from the host. -
3
ARPANET (1969) is regarded as the forerunner of the Internet; it was funded by ARPA of the US Department of Defense.
ARPANET was among the first packet-switched networks and adopted TCP/IP in 1983.
Practice (1)
Q3Which network is regarded as the forerunner of the Internet?
Show answer
Correct answer: C — ARPANET
ARPANET began in 1969 and is regarded as the forerunner of the Internet. -
4
The world's first website was info.cern.ch, created by Tim Berners-Lee at CERN and put online in 1991.
Practice (1)
Q4What was the world's first website?
Show answer
Correct answer: B — info.cern.ch
The first website was CERN's info.cern.ch (1991). -
5
Vint Cerf and Bob Kahn developed the TCP/IP protocols; both are called the 'Fathers of the Internet'.
Practice (1)
Q5Who developed TCP/IP?
Show answer
Correct answer: D — Vint Cerf and Bob Kahn
Cerf and Kahn created TCP/IP; Berners-Lee created the WWW. -
6
Google was founded in 1998 by Larry Page and Sergey Brin.
Practice (1)
Q6Who founded Google?
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Correct answer: C — Larry Page and Sergey Brin
Page and Brin founded Google in 1998; Yang and Filo founded Yahoo. -
7
Mosaic (1993), developed at NCSA by Marc Andreessen and Eric Bina, was the web browser that popularised the World Wide Web.
Practice (1)
Q7Which browser popularised the World Wide Web in 1993?
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Correct answer: C — Mosaic
After Mosaic (1993), Andreessen went on to build Netscape (1994). -
8
An IPv4 address is 32 bits long, while an IPv6 address is 128 bits long.
Practice (1)
Q8How many bits long is an IPv6 address?
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Correct answer: A — 128
IPv6 is 128-bit; IPv4 is 32-bit. -
9
Wikipedia was launched on 15 January 2001 by Jimmy Wales and Larry Sanger.
Practice (1)
Q9When was Wikipedia launched?
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Correct answer: D — 2001
Wikipedia was launched on 15 January 2001. -
10
In Adhoc mode, computers associated in a wireless network can send frames directly to each other without requiring a central access point or router.
Adhoc networks are decentralized and establish peer-to-peer connections.
Asked in SSC CGL 2016 (28 Aug, Shift 1)
Practice (1)
Q10In which mode can the computers that are associated send frames directly to each other?
Show answer
Correct answer: A — Adhoc mode
Answer: (A)
The correct option is (A). -
11
Net neutrality is the principle that Internet Service Providers and governments should treat all data on the internet equally, without discriminating based on user, content, or platform.
It prevents ISPs from blocking or throttling legal content.
Asked in SSC CGL 2016 (28 Aug, Shift 1)
Practice (1)
Q11What is 'net neutrality'?
Show answer
Correct answer: A — Internet Service Providers and governments should treat all data on the internet equally
Answer: (A)
The correct option is (A). -
12
HTTP (Hypertext Transfer Protocol) is an application layer protocol used for transmitting hypermedia documents on the World Wide Web.
TCP, IP, and UDP are transport and network layer protocols.
Asked in SSC CGL 2016 (27 Aug, Shift 1)
Practice (1)
Q12Which of the following is an application protocol?
Show answer
Correct answer: A — HTTP
Answer: (A)
The correct option is (A). -
13
WEP stands for Wired Equivalent Privacy, which is a security algorithm for IEEE 802.11 wireless networks designed to provide data confidentiality.
WEP has been largely replaced by WPA due to security vulnerabilities.
Asked in SSC CGL 2016 (30 Aug, Shift 1)
Practice (1)
Q13In Networks, WEP stands for
Show answer
Correct answer: C — Wired Equivalent Privacy
Answer: (C)
The correct option is (C). -
14
Routing is the process of selecting a path for traffic in a network or between or across multiple networks.
Routers use routing tables to determine the best path.
Asked in SSC CGL 2016 (31 Aug, Shift 3)
Practice (1)
Q14Which algorithm is used to decide the path to transfer the packets from source to destination?
Show answer
Correct answer: A — Routing
Answer: (A)
The correct option is (A). -
15
A network bridge operates at the data link layer (Layer 2) of the OSI model, connecting multiple network segments.
Repeaters work at the physical layer, while routers work at the network layer.
Asked in SSC CGL 2016 (30 Aug, Shift 3)
Practice (1)
Q15In the following list of devices, which device is used in datalink layer?
Show answer
Correct answer: D — Bridge
Answer: (D)
The correct option is (D). -
16
A protocol is a formal set of rules and agreements between communicating parties on how communication is to proceed in a network.
Protocols ensure successful data exchange across different systems.
Asked in SSC CGL 2016 (1 Sep, Shift 1)
Practice (1)
Q16A __________ is an agreement between the communicating parties on how communication is to proceed.
Show answer
Correct answer: D — Protocol
Answer: (D)
The correct option is (D). -
17
Network congestion occurs when a link or node is carrying so much data that its quality of service deteriorates, leading to packet drops.
Congestion results in delayed delivery and packet loss.
Asked in SSC CGL 2016 (2 Sep, Shift 2)
Practice (1)
Q17The Network is overloaded with enormous data sent by many computers within the network. The inability of the network to deliver the data is termed as<br>__________ .
Show answer
Correct answer: B — Congestion
Answer: (B)
The correct option is (B). -
18
A repeater is a physical layer device that receives a signal, regenerates it, and retransmits it to extend network reach.
Repeaters amplify and clean the distorted signals.
Asked in SSC CGL 2016 (3 Sep, Shift 1)
Practice (1)
Q18In IT networking, which of the following device is used in physical layer?
Show answer
Correct answer: A — Repeater
Answer: (A)
The correct option is (A). -
19
Cloud computing is the on-demand delivery of computer system resources, especially data storage and computing power, over the internet.
It allows users to access services without managing physical infrastructure.
Asked in SSC CGL 2016 (3 Sep, Shift 2)
Practice (1)
Q19__________ is a type of computing that performs<br>computation, storage and even applications as a service<br>across a network.
Show answer
Correct answer: A — Cloud Computing
Answer: (A)
The correct option is (A). -
20
A QoS (Quality of Service) scheduler manages network traffic queues to prioritize critical data packets and ensure reliable performance.
QoS helps reduce jitter and packet loss for real-time applications.
Asked in SSC CGL 2016 (3 Sep, Shift 3)
Practice (1)
Q20Which scheduling service is used to handle traffic with different priorities?
Show answer
Correct answer: B — QoS traffic scheduling
Answer: (B)
The correct option is (B).