Networking MCQs

Correct Answer: WAN

The Internet is a Wide Area Network (WAN) that connects devices across large geographical distances.

Correct Answer: SMTP

Simple Mail Transfer Protocol (SMTP) is the standard protocol used for sending emails across the internet.

Correct Answer: Router

A router is a networking device that connects multiple networks and directs data traffic between them.

Correct Answer: 128 bits

An IPv6 address is 128 bits long, providing a significantly larger address space than IPv4.

Correct Answer: Transponders

A transponder is a component of a satellite that receives signals, changes their frequency, and retransmits them to Earth.

Correct Answer: 80

Port 80 is the standard port used for unencrypted HTTP web traffic.

Correct Answer: Protocol

A network protocol is a set of established rules that govern how data is transmitted and received between devices.

Correct Answer: ICMP

ICMP (Internet Control Message Protocol) is used for diagnostic and error messaging, not for routing data traffic like RIP, BGP, or OSPF.

Correct Answer: Telnet

Telnet is a network protocol used for providing a bidirectional interactive text-oriented communication facility for remote login.

Correct Answer: Process

The layers of the OSI model are Physical, Data Link, Network, Transport, Session, Presentation, and Application. 'Process' is not one of them.

Correct Answer: Star

In a star topology, all devices are connected to a central hub; if that hub fails, the entire network goes down.

Correct Answer: Transport

The Transport layer is responsible for end-to-end communication, error recovery, and flow control.

Correct Answer: Maximum transfer unit

MTU stands for Maximum Transfer Unit, which is the largest size of a data packet that can be transmitted over a network protocol.

Correct Answer: Data transfer rate

Bandwidth is the maximum capacity of a wired or wireless communications link to transmit data over a network in a given amount of time.

Correct Answer: Attenuation

Attenuation is the reduction in signal strength as it travels through a transmission medium like optical fiber.

Correct Answer: Address Resolution Protocol

ARP stands for Address Resolution Protocol. It is a communication protocol used to map an IP address (Layer 3) to a physical MAC address (Layer 2) on a local network.

Correct Answer: Address resolution protocol

The Address Resolution Protocol (ARP) is a communication protocol used for discovering the link layer address, such as a MAC address, associated with an internet layer address.

Correct Answer: Network Interface

The correct answer is Network Interface, as asked in this question on Networking.

Correct Answer: IP Address

While IP addresses can be dynamic, the physical identity of the device remains associated with its hardware-level configuration until explicitly changed or assigned differently by the network.

Correct Answer: Uploading

Uploading is the process of transmitting data from a local computer to a remote server.

Correct Answer: Network

A computer network is defined as a collection of interconnected computing devices that share resources and data.

Correct Answer: Wireless Fidelity

Wi-Fi is a popular wireless networking technology; while often thought to be an acronym, it was commercially popularized as 'Wireless Fidelity'.

Correct Answer: Presentation Layer

The Presentation Layer is responsible for data encryption, decryption, and compression in the OSI model.

Correct Answer: Enhancing computer security by blocking unauthorized access to the system or network

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Correct Answer: Class C

IP addresses starting from 192 to 223 belong to Class C, which is commonly used for local area networks.

Correct Answer: IP Address

DHCP (Dynamic Host Configuration Protocol) is a network management protocol used to automatically assign IP addresses to devices on a network.

Correct Answer: Personal Area Network

Bluetooth is a technology used for short-range communication, making it a classic example of a Personal Area Network (PAN).

Correct Answer: 128 Bits

IPv6 addresses are 128 bits long, providing a significantly larger address space than the 32-bit IPv4 addresses.

Correct Answer: Secure Socket Layer

SSL (Secure Sockets Layer) is the standard security technology for establishing an encrypted link between a web server and a browser.

Correct Answer: Transport Layer

The Transport Layer (Layer 4) of the OSI model is responsible for end-to-end communication, error recovery, and flow/congestion control.

Correct Answer: Bandwidth

Bandwidth refers to the maximum rate of data transfer across a given path, usually measured in bits per second.

Correct Answer: Server

In many network configurations, the server acts as the central hub that manages network resources and services for other devices.

Correct Answer: RJ-45

RJ-45 is the standard connector type used for Ethernet networking cables in computers.

Correct Answer: To block unauthorized access to or from a private network

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

Correct Answer: Point-to-point connection

A point-to-point connection establishes a dedicated communication path between two endpoints.

Correct Answer: Network

Servers are centralized computers on a network that provide data, services, or resources to client computers.

Correct Answer: Firewall

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on security rules.

Correct Answer: To provide security against unauthorized users

A proxy server acts as an intermediary, filtering traffic and providing security by masking internal network structures.

Correct Answer: Bluetooth

Bluetooth is a short-range wireless technology standard used for exchanging data between fixed and mobile devices.

Correct Answer: Internet protocol suite

The Internet protocol suite (TCP/IP) is the conceptual model and set of communications protocols used for the internet.

Correct Answer: Firewall

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.

Correct Answer: Protocol

In telecommunications, a protocol is a standardized set of rules for formatting and processing data so computers can communicate efficiently.

Correct Answer: ARPANET

ARPANET (Advanced Research Projects Agency Network) was the first operational packet switching network and the progenitor of the global Internet.

Correct Answer: Domain Name System

DNS stands for Domain Name System, which essentially acts as the internet's phonebook by translating human-readable web domains into machine IP addresses.

Correct Answer: 4 pair

An RJ45 Unshielded Twisted Pair (UTP) cable consists of four pairs of twisted copper wires.

Correct Answer: Hypertext Transfer Protocol

HTTP is the foundational protocol for sending hypertext requests and data over the World Wide Web.

Correct Answer: Email server

Gmail and Yahoo act as email servers, handling the delivery, receiving, and storage of electronic mail over the internet.

Correct Answer: Wide Area Network

WAN stands for Wide Area Network, a telecommunications network that extends over a large geographic area.

Correct Answer: Interconnection of wide area networks

The internet is a massive global network that connects numerous Wide Area Networks (WANs) and Local Area Networks (LANs) together.

Correct Answer: Ethernet cable

An Ethernet cable is used to directly connect a printer to a Local Area Network (LAN) router or switch, making it accessible to all network users.

Correct Answer: All of these

Wi-Fi, Near Field Communication (NFC), and Bluetooth are all distinct wireless communication technologies used for short-to-medium range connectivity.

Correct Answer: Digital Subscriber Line

Digital Subscriber Line (DSL) is a family of technologies that provide internet access by transmitting digital data over copper telephone lines.

Correct Answer: SMTP

Simple Mail Transfer Protocol (SMTP) is the standard internet protocol used strictly for sending emails across IP networks.

Correct Answer: Bluetooth

Bluetooth is an industry-standard wireless technology optimized specifically for exchanging data across very short distances.

Correct Answer: IP address

Every device connected to the internet is assigned a unique numerical label known as an Internet Protocol (IP) address.

Correct Answer: Internet Protocol

IP stands for Internet Protocol, which is the principal set of rules governing the format of data sent over the internet or local network.

Correct Answer: Mesh

A full mesh topology requires every single node to connect to every other node, consuming the highest amount of cabling.

Correct Answer: Star

In a star topology, all devices are connected directly to a central hub or switch.

Correct Answer: Metropolitan Area Network

A Metropolitan Area Network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by a LAN.

Correct Answer: IP address

An Internet Protocol (IP) address is a unique numerical label assigned to every device connected to a computer network.

Correct Answer: Internet

The Internet is the prime example of connectivity, serving as a vast global network connecting millions of computers.

Correct Answer: BSNL

BSNL is an Indian state-owned telecommunications company, not an underlying technical networking protocol like IP, HTTP, or TCP.

Correct Answer: Have a unique IP address

For any device to communicate correctly over the Internet, it must be assigned a unique numeric IP address for identification.

Correct Answer: Secure

Hypertext Transfer Protocol Secure (HTTPS) is an extension of HTTP that uses encryption to provide secure communication over a computer network.

Correct Answer: All of these

Cybersecurity aims to protect networks, computer systems, and software applications from digital attacks.

Correct Answer: Domain name system

The Domain Name System (DNS) translates human-readable domain names to numerical IP addresses.

Correct Answer: Ten

4G mobile network technology is widely estimated to be around ten times faster than standard 3G technology.

Correct Answer: Duplex

A full-duplex communication system is capable of sending and receiving data packets in both directions simultaneously between two connected nodes[cite: 308, 312].

Correct Answer: Uploading

Uploading is the precise network term for transmitting files or data from a user's personal client device up to a centralized, remote server[cite: 348].

Correct Answer: FTP

FTP (File Transfer Protocol) is traditionally used to transfer files between computers over a network.

Correct Answer: Downloading

Downloading is the transmission of a file from a remote server over the internet to a local user's computer.

Correct Answer: Modem

A modem modulates and demodulates analog signals to digital information, serving as the bridge to connect to an ISP and the internet.

Correct Answer: All of these

Accessing the internet requires a modem for hardware connectivity, an active internet connection line, and a subscription through an Internet Service Provider (ISP).

Correct Answer: Stale file handle

A 'stale file handle' is an operating system error related to file systems (like NFS), not an email delivery issue.

Correct Answer: Multiplexing

Multiplexing is a method in telecommunications and networking where multiple analog or digital signals are combined into one signal over a shared medium.

Correct Answer: UDP

UDP (User Datagram Protocol) is a network communications protocol, whereas ISDN, Modem, and DSL are used to establish physical or data link connections to access the internet.

Correct Answer: IP Address

An IP (Internet Protocol) address uniquely identifies a device on the internet or a local network.

Correct Answer: All of these

Internet access can be provided through a variety of technologies, including cable, fiber optics, DSL (copper), and wireless methods like Wi-Fi.

Correct Answer: ARPANET

ARPANET (Advanced Research Projects Agency Network) was the first public packet-switched computer network and the precursor to the internet.

Correct Answer: Internet Protocol

IP stands for Internet Protocol, which is the principal set of rules for routing and addressing packets of data over the internet.

Correct Answer: Volts

Analog signals represent physical measurements and their amplitude is most commonly measured in Volts.

Correct Answer: Domain name system

DNS stands for Domain Name System, which translates human-readable domain names into numerical IP addresses.

Correct Answer: Bridge

A network bridge connects two similar local area networks (LANs) or network segments and operates at the Data Link layer.

Correct Answer: WAN

A Wide Area Network (WAN) extends over a large geographical distance, unlike a Local Area Network (LAN).

Correct Answer: LAN

A Local Area Network (LAN) connects computers and devices in a limited geographical area, such as a home, school, or office building.

Correct Answer: Firewall

A firewall is a network security device that monitors and filters incoming and outgoing network traffic to block unauthorized access.

Correct Answer: IP Address

An IP (Internet Protocol) address is a unique numerical identifier assigned to every device connected to a computer network.

Correct Answer: Digital Subscriber Line

DSL stands for Digital Subscriber Line, a technology used to transmit digital data over telephone lines.

Correct Answer: Internet Protocol

Internet Protocol (IP) is the principal communications protocol in the Internet protocol suite for routing and addressing packets.

Correct Answer: IP Address

An Internet Protocol (IP) address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

Correct Answer: Internet Service Provider

An Internet Service Provider (ISP) is an organization that provides the infrastructure and access necessary for connecting devices to the Internet.

Correct Answer: Network

A computer network is a set of computers interconnected to share resources and communicate with one another.

Correct Answer: Wireless Fidelity

Although Wi-Fi doesn't strictly stand for anything, it is widely accepted and taught in basic curricula as 'Wireless Fidelity'.

Correct Answer: Full duplex

In full-duplex transmission mode, data can flow in both directions at the same time, much like a regular telephone conversation.

Correct Answer: Modem

A modem modulates and demodulates electrical signals to transmit digital data from computers over analog telephone lines.

Correct Answer: Data communication

Data communication refers to the electronic transfer of data from one location to another using a communications channel.

Correct Answer: Network Operating System

A Network Operating System (NOS) is a computer operating system that is designed primarily to support workstations, personal computers, and servers on a local area network.