First Credit Services Network Engineer L1 L2 Interview Questions and Answers

A node is a device or data point in a network that can send, receive, or forward data.

• Nodes can be computers, servers, routers, switches, or any other network device.

• Nodes are connected to each other through links or connections.

• In a network diagram, nodes are represented by circles or boxes with labels.

• Examples of nodes include laptops, smartphones, printers, and network switches.

A link is a connection between two devices that allows them to communicate and share data.

• A link can be physical, such as an Ethernet cable connecting two computers.

• A link can also be virtual, such as a VPN connection over the internet.

• Links can be wired or wireless, depending on the technology used.

• Links are essential for networking and communication between devices.

A network is a collection of computers, servers, mainframes, network devices, and other devices connected to one another.

• A network allows devices to communicate with each other and share resources.

• Networks can be classified based on their size (LAN, WAN, MAN) or their connection method (wired or wireless).

• Examples of networks include the internet, intranets, and extranets.

A gateway of route is a device or software that connects different networks, allowing communication between them.

• A gateway of route acts as an entry and exit point for data packets traveling between networks

• It can perform tasks such as protocol translation, packet filtering, and routing

• Examples include routers, firewalls, and proxy servers

Types of network names include SSID, domain name, hostname, and workgroup name.

• SSID (Service Set Identifier)

• Domain name

• Hostname

• Workgroup name