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IT
Test your understanding of the technologies and protocols that allow devices, websites, and services to communicate across the Internet. Beantworte jede Frage und sieh sofort, ob du richtig liegst — jedes Mal mit Erklärung.
Ein kostenloser Multiple-Choice-Übungstest mit 12 Fragen zu IT. Jede Frage hat eine richtige Antwort und eine kurze Erklärung, und der vollständige Lösungsschlüssel unter dem Quiz dient zugleich als Lernzettel. Kein Konto, kein Zeitlimit — löse ihn so oft du willst.
Dies ist ein kostenloses Multiple-Choice-Quiz mit 12 Fragen. Nach jeder Antwort siehst du, ob sie richtig war — immer mit Erklärung. Keine Anmeldung, kein Zeitlimit: Mach es so oft du willst und nutze den Lösungsschlüssel oben zum Wiederholen, vorher oder nachher.
Richtige Antwort: BTo identify a device or network interface for communication
IP addresses provide network-layer addressing so data packets can be routed between devices across interconnected networks.
Richtige Antwort: CIt translates the domain name into an IP address
DNS acts like a distributed directory, allowing applications to discover the IP addresses associated with human-readable domain names.
Richtige Antwort: ATo forward packets between different networks
Routers examine addressing information in packets and determine where to forward them so they can travel toward their destination.
Richtige Antwort: DTCP
TCP uses mechanisms such as acknowledgments, sequence numbers, and retransmissions to provide reliable and ordered data delivery.
Richtige Antwort: ADividing data into smaller units that can travel independently through a network
Packet switching allows network resources to be shared efficiently because individual packets can be routed separately and reassembled at the destination.
Richtige Antwort: BIt uses TLS to protect communication between the client and server
HTTPS combines HTTP with TLS, which provides encryption and helps protect the integrity and authenticity of communication.
Richtige Antwort: CConnectivity between the user's network and the wider Internet
An ISP connects customers to its network and provides routes through which their traffic can reach other networks on the Internet.
Richtige Antwort: AThe browser asks the server to return a specified resource
GET is an HTTP method used to request a representation of a resource, such as a web page, image, or API response.
Richtige Antwort: BThe Internet is a network infrastructure, while the Web is a service that operates over it
The Internet is the global system of interconnected networks, while the Web is one of many services that use that infrastructure.
Richtige Antwort: CRouters can make forwarding decisions based on current network routes and conditions
Internet routing is dynamic, so forwarding paths can change because of routing updates, network topology, failures, or traffic-management decisions.
Richtige Antwort: DTo store previously retrieved resources so they may be reused
Caching can reduce loading time and network traffic by allowing suitable previously downloaded resources to be used again.
Richtige Antwort: CDistribute content across multiple locations closer to users
CDNs place or cache content at geographically distributed servers, which can reduce latency and lessen the load on the original server.