N10-005 · Question #566
Which of the following is a routed protocol that functions at layer 3 of the OSI model?
The correct answer is A. IP. IP (Internet Protocol) is a routed protocol that operates at Layer 3 of the OSI model, responsible for logical addressing and routing packets across interconnected networks.
Question
Which of the following is a routed protocol that functions at layer 3 of the OSI model?
Options
- AIP
- BFrame relay
- CPPP
- DADSL
How the community answered
(37 responses)- A89% (33)
- B3% (1)
- C5% (2)
- D3% (1)
Why each option
IP (Internet Protocol) is a routed protocol that operates at Layer 3 of the OSI model, responsible for logical addressing and routing packets across interconnected networks.
IP is the primary Layer 3 routed protocol of the TCP/IP suite, providing logical addressing (IP addresses) and routing decisions that allow packets to traverse multiple networks from source to destination. As a routed protocol, IP defines the data packet structure and addressing scheme that routing protocols (such as OSPF or BGP) use to determine forwarding paths.
Frame Relay is a Layer 2 WAN encapsulation protocol that operates at the data link layer, not Layer 3.
PPP (Point-to-Point Protocol) is a Layer 2 data link protocol used to encapsulate network layer datagrams over serial links.
ADSL (Asymmetric Digital Subscriber Line) is a physical layer (Layer 1) and data link layer (Layer 2) DSL access technology, not a Layer 3 routed protocol.
Concept tested: IP as a Layer 3 routed protocol in OSI model
Source: https://www.rfc-editor.org/rfc/rfc791
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