Which unique identifier allows network traffic to be routed to a host?

The correct answer is C. IP address. An IP address (e.g., 192.168.1.10) is the unique Layer 3 identifier that routers use to make forwarding decisions and direct traffic to a specific host across networks. A hostname (A) is a human-readable label that must first be resolved to an IP address via DNS before routing…

Network Fundamentals

Question

Options

Ahostname
Bnetwork prefix
CIP address
Dsubnet mask

How the community answered

(35 responses)

A
3% (1)
B
6% (2)
C
89% (31)
D
3% (1)

Explanation

An IP address (e.g., 192.168.1.10) is the unique Layer 3 identifier that routers use to make forwarding decisions and direct traffic to a specific host across networks. A hostname (A) is a human-readable label that must first be resolved to an IP address via DNS before routing can occur. A network prefix (B) identifies the network portion of an address, not a specific host. A subnet mask (D) is used to determine the network and host portions of an IP address but does not itself identify a host.

Topics

#IP Addressing#Network Routing#Host Identification#Network Fundamentals

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