Network Fundamentals & Models

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Core concepts of networks.

Divya Dharshini S

India

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Network Fundamentals & Models


Network Fundamentals & ModelsVersion en ligne Core concepts of networks. par Divya Dharshini S 1 Which layer of the OSI model handles end-to-end connections and reliability? a Transport layer b Physical layer c Application layer d Data Link layer 2 What does TCP provide that UDP does not? a Low overhead b Connectionless communication c Reliable, ordered delivery d Broadcast capability 3 Which protocol suite is the core of the Internet protocol stack? a TCP/IP b OSI model c OSI/TCP hybrid d NetBIOS 4 Which device primarily operates at Layer 2 of the OSI model? a Hub b Router c Switch d Bridge 5 What is the primary function of DNS in a network? a Route packets across networks b Translate domain names to IP addresses c Encrypt data d Allocate IP addresses dynamically 6 Which addressing method is used by IPv4 to conserve addresses? a Subnetting b DHCP c VLSM d NAT 7 Which topology generally requires a shared medium and can cause collisions? a Star topology b Bus topology c Mesh topology d Ring topology 8 What term describes the maximum rate of successful message delivery over a network channel? a Jitter b Throughput c Bandwidth d Latency 9 Which layer is responsible for routing packets between subnets? a Data Link layer b Network layer c Physical layer d Transport layer 10 Which NAT type allows multiple internal hosts to share one public IP? a Full NAT b PAT (Port Address Translation) c Static NAT d Dynamic NAT