Top 100 Networking Questions & Answers

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Questions and Answers

What is a link?

A link refers to the connectivity between two devices, including the type of cables and protocols used for communication.

What are the layers of the OSI reference model?

There are 7 OSI layers: Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer, and Application Layer.

What is a LAN?

LAN stands for Local Area Network, referring to the connection between computers and other network devices in a small physical location.

What is a backbone network?

A backbone network is a centralized infrastructure designed to distribute different routes and data to various networks. Signup and view all the answers

What is a node?

A node refers to a point or joint where a connection takes place, such as a computer or device in a network. Signup and view all the answers

What are routers?

Routers are intelligent network devices that connect two or more network segments and determine the best path for data transfer. Signup and view all the answers

What is anonymous FTP?

Anonymous FTP allows user access to files on public servers without needing to identify themselves; they log in as an anonymous guest. Signup and view all the answers

What is a point to point link?

A point to point link is a direct connection between two computers on a network without needing other network devices. Signup and view all the answers

What is a subnet mask?

A subnet mask is combined with an IP address to identify the extended network address and the host address. Signup and view all the answers

What is the maximum length allowed for a UTP cable?

The maximum allowable length of a single segment of UTP cable is 90 to 100 meters. Signup and view all the answers

What is data encapsulation?

Data encapsulation is the process of breaking down information into smaller chunks before transmitting it across the network. Signup and view all the answers

Describe Network Topology.

Network Topology refers to the layout of a computer network, showing how devices and cables are connected. Signup and view all the answers

What is a VPN?

VPN means Virtual Private Network, a technology that creates a secure tunnel across a network such as the Internet. Signup and view all the answers

Briefly describe NAT.

NAT stands for Network Address Translation, a protocol that allows multiple computers on a common network to share a single Internet connection. Signup and view all the answers

What is the job of the Network Layer under the OSI reference model?

The Network Layer is responsible for data routing, packet switching, and controlling network congestion. Signup and view all the answers

How does a network topology affect your decision in setting up a network?

Network topology dictates the media used to interconnect devices and guides the choice of materials, connectors, and terminations. Signup and view all the answers

What is RIP?

RIP, or Routing Information Protocol, is used by routers to send data from one network to another by broadcasting its routing table. Signup and view all the answers

What are different ways of securing a computer network?

Ways to secure a network include installing reliable antivirus software, properly configuring firewalls, and implementing user authentication. Signup and view all the answers

What is a NIC?

NIC stands for Network Interface Card, a peripheral card that connects a PC to a network and has its own MAC address. Signup and view all the answers

What is WAN?

WAN stands for Wide Area Network, an interconnection of computers and devices that are geographically dispersed. Signup and view all the answers

Study Notes

Networking Concepts

Link: Connects two devices, comprised of specific cables and protocols enabling communication.
OSI Reference Model: Consists of 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, Application.
Backbone Network: Centralized infrastructure that manages data distribution and bandwidth across various networks.
LAN (Local Area Network): Connects computers and network devices in a localized area, like a home or office.
Node: A connection point in a network, can be any computer or device, requiring at least two nodes to form a network connection.
Routers: Network devices that connect segments, store routing information, and operate at the Network Layer of the OSI model.
Point to Point Link: A direct connection between two devices, requiring only a cable without the need for additional network devices.

Protocols and Networking Technologies

Anonymous FTP: Grants access to public servers without user identification, allowing login as an anonymous guest.
Subnet Mask: Works alongside an IP address to define the network and host portions, consisting of 32 bits.
UTP Cable Length: Maximum length for a single segment is 90 to 100 meters, extendable with repeaters and switches.
Data Encapsulation: Breaking down information into smaller packets for transmission, including source/destination addresses.
Network Topology: Describes the physical layout of a network, detailing how devices and cables connect.

Security and Configuration

VPN (Virtual Private Network): Creates a secure connection over public networks, allowing secure access to remote servers.
NAT (Network Address Translation): Enables multiple devices on a local network to share a single internet connection.
Network Layer (OSI): Handles data routing, packet switching, and network congestion control, where routers operate.
Network Topology Impact: Influences choice of media, connectors, and terminations required for network setup.
RIP (Routing Information Protocol): Enables routers to share routing tables across networks, managing data transfer via hop counts.

Network Security Measures

Ensure updated anti-virus software is installed on all network computers.
Proper configuration of firewalls is crucial for protection.
Implement user authentication to enhance network security.

Additional Networking Terms

NIC (Network Interface Card): A peripheral card that connects a computer to a network, identifiable by a unique MAC address.
WAN (Wide Area Network): Connects computers and devices over large geographic distances, enabling communication between dispersed locations.

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Description

Prepare for your networking interviews with this comprehensive quiz featuring the top 100 oral questions and answers. It covers essential concepts such as link definitions and the layers of the OSI model, providing a solid foundation for networking basics. Test your knowledge and boost your confidence in networking topics.