Total IT Solutions Desktop Support Engineer Interview Questions and Answers

DNS stands for Domain Name System. It is a decentralized naming system that translates domain names into IP addresses.

• DNS is used to resolve domain names to their corresponding IP addresses.

• It helps in the efficient routing of internet traffic by translating human-readable domain names into machine-readable IP addresses.

• DNS operates through a hierarchical structure of servers, including authoritative DNS servers, recur...read more

A gateway is a network node that serves as an access point to another network.

• A gateway acts as a bridge between different networks, allowing communication between them.

• It can be a hardware device or a software program.

• Gateways are used to connect local networks to the internet.

• They can also provide security features like firewall protection.

• Examples of gateways include routers, modems, and proxy servers.

Topology refers to the physical or logical arrangement of network devices and their interconnections.

• It determines how data flows through a network.

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

• Topology affects network performance, scalability, and fault tolerance.

• Physical topology refers to the actual layout of devices, while logical topology refers to the way data flows.

• Hybrid topologies combine multiple types