Networking MCQ Quiz - Objective Question with Answer for Networking - Download Free PDF

The correct answer is URL.

Key Points

• A URL (Uniform Resource Locator) is the address used to access web pages on the internet.
• It typically consists of the protocol (e.g., HTTP or HTTPS), the domain name, and often a path to a specific page or file.
• URLs are fundamental to web navigation, allowing browsers to retrieve and display resources from the web.
• Every web page on the internet has a unique URL, ensuring each resource can be distinctly identified and accessed.

Additional Information

• IP Address
  • An IP (Internet Protocol) address is a numerical label assigned to each device connected to a computer network that uses the IP for communication.
  • It serves two main functions: host or network interface identification and location addressing.
  • IP addresses are essential for routing data across the internet from the sender to the receiver.
• TCP
  • TCP (Transmission Control Protocol) is one of the main protocols in the internet protocol suite.
  • It enables reliable, ordered, and error-checked delivery of a stream of data between applications running on hosts communicating via an IP network.
• Browser
  • A web browser is a software application for accessing information on the World Wide Web.
  • Examples include Google Chrome, Mozilla Firefox, and Microsoft Edge.
  • Browsers retrieve web pages from servers and display them to the user.
• HTTP/HTTPS
  • HTTP (Hypertext Transfer Protocol) and HTTPS (HTTP Secure) are protocols used for transmitting hypertext requests and information on the internet.
  • HTTPS includes an additional layer of security using SSL/TLS to encrypt data between the client and server.

The correct answer is PAN.

Key Points

• Bluetooth technology is primarily used for creating Personal Area Networks (PANs).
• A PAN is a network for interconnecting devices centered around an individual person's workspace, typically within a range of a few meters.
• Bluetooth allows devices to communicate wirelessly, making it ideal for short-range data transfer between devices such as smartphones, tablets, and laptops.

Additional Information

• MAN (Metropolitan Area Network): This network spans a city or a large campus. It is not typically associated with Bluetooth technology.
• LAN (Local Area Network): This network covers a smaller geographical area, like a home, office, or building. While LANs can be wireless, Bluetooth is not commonly used to set up LANs.
• Internet: This is a global network connecting millions of private, public, academic, business, and government networks. Bluetooth is not used to build the Internet.

The correct answer is a logical topology.

Key Points

• A network topology defines how the components are connected in the network.
  • There are two basic types of topologies: Physical and Logical.
• A logical topology defines the architecture of the communication of all nodes in the network. It consists of nodes, routers and a hub or switches.
• Logical topology deals with how data should be transferred to the end nodes in the network. Hence option 2 is correct.
• There are two common logical topologies. They are Bus topology and Ring topology.
  • A bus is a broadcast topology and the Ring is a sequential topology.
• Ethernet uses a logical topology to transfer the data in a bus topology.

Additional Information

• Physical topology is an interconnected structure LAN.
  • It connects the physical devices over the network with cables.
  • It is classified into Bus, Star, Tree, Ring, Mesh and Hybrid topologies.
• A hybrid topology is a combination of two or more topologies.
  • It can handle large networks but has a very robust design.
• The two most commonly used hybrid topologies are Star-Ring topology and Star-Bus topology.
  • In Star-Ring topology, two or more Star topologies are connected together through a Ring topology. 
  • In Star-Bus topology, two or more Star topologies are connected through a Bus topology.
• In Tree topology, all the nodes are directly or indirectly connected to the main bus or hub.
  • It is also called Hierarchical topology.

The correct answer is To block unauthorised access and protect the computer.

Key Points

• A firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies.
• Its primary purpose is to establish a barrier between a trusted internal network and untrusted external networks, such as the internet.
• Firewalls can be hardware-based, software-based, or a combination of both.
• They can prevent unauthorized access to or from a private network and are essential for protecting sensitive data and resources.
• Firewalls use various techniques to control traffic, including packet filtering, proxy service, and stateful inspection.

Additional Information

• Firewalls can also be used to log and report on network activity, which can help in identifying suspicious activity and troubleshooting network issues.
• Modern firewalls can inspect secure sockets layer (SSL) and transport layer security (TLS) encrypted traffic to ensure that threats don't hide in encrypted connections.
• Advanced firewalls offer additional features, such as intrusion detection and prevention systems (IDPS), and can integrate with other security tools like antivirus software.
• The concept of a firewall originated from the physical firewalls used in buildings to prevent the spread of fire.

The correct answer is PayTm.

• Facebook is an American social media platform.
• Products owned by Facebook are. Instagram, Messenger, WhatsApp, Oculus VR.
• Facebook acquired Instagram in 2012.
• Instagram was founded by Kevin Systrom and Mike Krieger
• Twitter is an American social networking service provider.
  • Parent company: Odeo.​
  • Twitter was founded by Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams
• Paytm is an Indian multinational technology company that specializes in digital payment systems.
  • Hence PayTm is the answer.

Key Points

• The physical layer (also known as layer 1) deals with bit-level transmission between different devices and supports electrical or mechanical .
• This includes the layout of pins, voltages, cable specifications, hubs, repeaters, network adapters etc.
• Physical layer is Located at the lowest layer of the Open Systems Interconnection (OSI) communications mod.
• The Physical layer change bits to electromagnetic signals.

Additional Information

•  A data link is a method for connecting one location to another in telecommunications, in order to transmit and receive digital information.
• The transport layer is a 4th layer from the top. · The main role of the transport layer is to provide the communication services directly to the application.

The correct answer is option 1 i.e Intranet.

Key Points

• A computer in a network cannot be accessed outside of the local network unless given permission is called the intranet.
  • Intranet is established mainly with the technologies for local area networks and wide area networks.
  • Larger business organizations allow users within their intranet to access public internet through firewall servers.
  • The intranet is functionally useful only for a selected group of people.
  • Comparing to the Internet, the intranet is a closed network.
  • Microsoft SharePoint, Huddle, Igloo, and Jostle are common examples of the Intranet service.
• Additional Information 
• The Internet is a worldwide network of computers.
  • ARPANET is considered as the ancient form of the internet.
  • Vinton Gray Cerf is recognized as "the father of the Internet",

The Correct Answer is Metropolitan Area Network.

• A metropolitan area network (MAN) is a computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan area.

Additional Information

A computer network is a group of computers linked to each other that enables the computer to communicate with another computer and share its resources, data, and applications.

On the basis of the size of the network it is mainly of four types:

Computer Network Types

• LAN(Local Area Network): Local Area Network is a group of computers connected to each other in a small area such as a building, or office.
• PAN(Personal Area Network): It is a network arranged within an individual person, typically within a range of 10 meters.
• MAN(Metropolitan Area Network): A metropolitan area network is a network that covers a larger geographic area by interconnecting a different LAN to form a larger network.
• WAN(Wide Area Network): A Wide Area Network is a network that extends over a large geographical area such as states or countries.

The correct answer is the hub.

Key Points

• An Ethernet hub, active hub, network hub, repeater hub, multiport repeater, or simply hub is a network hardware device for connecting multiple Ethernet devices together and making them act as a single network segment.
• It has multiple input/output (I/O) ports, in which a signal introduced at the input of any port appears at the output of every port except the original incoming.

Additional Information

• Tim Berners-Lee, a British scientist, invented the World Wide Web (WWW) in 1989 while working at CERN.
• The first web page address was http://info.cern.ch/hypertext/WWW/TheProject.html.
• ARPANET adopted TCP/IP on January 1, 1983.
• NCSA Mosaic ran on Windows computers was the first browser to surf the internet.

The correct answer is Dynamic Host Configuration Protocol.

Key Points

• DHCP is the acronym of Dynamic Host Configuration Protocol.
• A Dynamic Host Configuration Protocol is a network server that automatically provides and assigns IP addresses, default gateways and other network parameters to client devices.
• It will help to prevent duplication of addresses and also help the administrator keep good records.
• DHCP is designed to improve the efficiency of allocating IP addresses.
• DHCP services exist for networks running both Internet Protocol version 4 (IPv4) and  Internet Protocol version 6 (IPv6).
• The IPv6 version of the DHCP protocol is commonly called DHCPv6.

Additional Information

• Other common network protocols examples:
  • Address Resolution Protocol (ARP)
  • File Transfer Protocol(FTP)
  • HyperText Transfer Protocol(HTTP)
  • Post Office Protocol (POP3)
  • Simple Mail Transfer Protocol (SMTP)
  • Secure Shell Protocol (SSH)

The correct answer is Simplex.

Additional Information

• Communication between a computer and a keyboard involves simplex transmission because here data flows in a single direction.
  • Simplex transmission is a type of transmission mode. In this type of transmission mode, data can be sent only through one direction i.e. communication is unidirectional. We cannot send a message back to the sender.
  • Examples of simplex Mode is the loudspeaker, television broadcasting, television and remote, keyboard and monitor etc.
• In half-duplex mode, each station can both transmit and receive, but not at the same time, that is, when one device is sending, the other can only receive, and vice versa. Example of Half-duplex systems: Walkie-talkies and CB (citizens band) radios.
• In full-duplex mode, both stations can transmit and receive simultaneously. 
  • Telephone is an example of a full-duplex system.

The correct answer is Multi-access bus.

Key Points

• In a multi-access bus network, all nodes (computers, printers, etc.) are connected to a single communication line (the bus).
• This network type is called 'multi-access' because all nodes share and have access to the same communication line.
• Information sent from one node travels along the bus to all other nodes on the network.
• It is simple and less expensive to install and expand.
• However, as the number of nodes increases, the efficiency of the network can decrease because of data collisions.

Additional Information

• Ring Topology-
  • In Ring Topology each node connects to two other nodes and forms a single continuous pathway for signals through each node.
  • It connects the workstations in a closed loop.
  • Data is transmitted around the ring in one direction only.
  • A break in the ring causes the entire network to fail.
  • There is no signal loss in the Ring Topology.

​

• Bus Topology-
  • In Bus Topology nodes are connected to a common half-duplex link called a bus or backbone.
  • Each workstation is connected to the next workstation in a point-to-point fashion.
  • The common implementation of this topology is Ethernet.
  • This topology is used only in comparatively small networks.

• Star Topology- 
  • In this network, topology nodes are connected to a central hub.
  • Nodes communicate across the network by passing data through the hub.
  • Failure in one of the terminals does not affect any other terminal.
  • This network topology is used to connect terminals to a large time-sharing host computer.

• Mesh Topology- 
  • In this network, topology devices are connected with many redundant interconnections between network nodes.
  • Failure in one of the computers does not cause the network to break down.
  • This topology is used in the critical connection of host computers.

The correct answer is Router.

Key Points

• A router is a networking device that forwards data packets between computer networks.
• Routers perform the traffic directing functions on the Internet. Data sent through the internet, such as a web page or email, is in the form of data packets.
• A packet is typically forwarded from one router to another router through the networks that constitute an internet work until it reaches its destination node.
• A router is connected to two or more data lines from different IP networks.
• When a data packet comes in on one of the lines, the router reads the network address information in the packet header to determine the ultimate destination.
• Then, using information in its routing table or routing policy, it directs the packet to the next network on its journey.
• The most familiar type of IP routers are home and small office routers that simply forward IP packets between the home computers and the Internet.
• More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone.

The correct answer is Wi-Fi.

Key Points

• WiFi:
  • ​It is suggested that wifi stands for Wireless Fidelity.
  • It is a wireless communication technology which enables computers and other devices to communicate through a wireless signal.
  • Wifi technology has coverage areas of up to 300 feet (approx.. 100 meters).
  • This means it can be used for larger distance compared to Bluetooth technology. 

Additional Information

• Electronic gadgets enable people to communicate with each other irrespective of their geographic location and distance.
• All technologies can be broadly classified into – wired and Wireless.
• Wired technologies use cables whereas wireless technologies use radio frequency to enable one or more devices to communicate without any physical connections.
• Bluetooth:
  • Bluetooth technology was created by a telecom company called Ericsson in 1994.
  • It is a wireless medium for sharing information built into electronic devices like mobile phones, Personal Digital Assistants (PDAs) etc.
  • There is no cable or modem or driver to be installed.
  • It can work in a concise range for example only within the room.
  • It a short-range wireless convergent technology.
  • It is a low-power radio technology covering a small range of distances up to 10 metres or 30 feet approx.
  • This technology has been adopted to many products such as earphones, in-car systems, printer, keyboard, and mouse.
• Infrared:
  • ​It is another wireless technology that uses infrared radiation for wireless transmission between computer devices as well as many handheld remotes for TVs and video and stereo equipment.
  • Infrared adapters are installed on many laptops and smartphones.
• Modem:
  • ​Modems can be wired or wireless.
  • It converts the digital signal from the computer into an analogue signal that can travel through the telephone line.
  • On the other end, this analogue signal is again converted back to digital form by the modem at the destination end.

The correct answer is Client.

Key Points

• A client is a computer that connects to and uses the resources of a remote computer, or server.
• Many corporate networks comprise a client computer for each employee, each of which connects to the corporate server.
• The server provides resources like files, information, Internet and Intranet access, and external processing power.
• In the case of processing, any work done on the server is referred to as "server-side" work. Any work done on the local client is similarly called "client-side."

Additional Information