CRED Network Engineer Interview Questions, Process, and Tips

A network is a collection of interconnected devices and systems that allow for the sharing of resources and information.

• A network is made up of nodes, which can be computers, servers, routers, switches, or other devices.

• These nodes are connected by physical or wireless connections, such as Ethernet cables or Wi-Fi.

• Networks can be local (LAN), connecting devices within a limited area like a home or office, or wide (WAN)...read more

Types of network include LAN, WAN, MAN, PAN, WLAN, and VPN.

• LAN (Local Area Network) is a network that covers a small area like an office or a building.

• WAN (Wide Area Network) connects multiple LANs over a large geographical area.

• MAN (Metropolitan Area Network) covers a larger area than LAN but smaller than WAN, usually within a city.

• PAN (Personal Area Network) connects devices within an individual's personal space, lik...read more

The OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers.

• The OSI model stands for Open Systems Interconnection model.

• It was developed by the International Organization for Standardization (ISO) in 1984.

• The model divides the communication process into seven layers, each with its own specific functions.

• The layers are: Physical, Data Link, Network, Transport, Sess...read more

Topology refers to the arrangement of network devices and their connections.

• Topology determines how devices are connected and communicate with each other.

• Common topologies include star, bus, ring, and mesh.

• In a star topology, all devices are connected to a central hub.

• In a bus topology, devices are connected to a single cable.

• In a ring topology, devices are connected in a circular manner.

• In a mesh topology, devices are...read more