200-901 · Question #151
What is a function of the default gateway in a network?
The correct answer is D. to forward traffic to different subnets. The default gateway is a router or Layer 3 device that hosts use to forward packets destined for IP addresses outside their local subnet. Without a default gateway, a host can communicate only within its own subnet.
Question
What is a function of the default gateway in a network?
Options
- Ato drop traffic that is destined to the default gateway
- Bto drop traffic that is not destined to the default gateway
- Cto forward traffic to the same subnet
- Dto forward traffic to different subnets
How the community answered
(30 responses)- A7% (2)
- B3% (1)
- C3% (1)
- D87% (26)
Why each option
The default gateway is a router or Layer 3 device that hosts use to forward packets destined for IP addresses outside their local subnet. Without a default gateway, a host can communicate only within its own subnet.
The default gateway does not drop traffic addressed to itself; it processes packets sent to its own IP, such as management traffic or routing protocol messages.
The default gateway does not drop traffic not addressed to it; its purpose is to accept such packets and route them onward to their intended destination subnet.
Traffic destined to the same local subnet is delivered directly by the sending host using ARP to resolve the destination MAC address and does not traverse the default gateway at all.
When a host applies its subnet mask and determines the destination IP is on a different subnet, it forwards the packet to its configured default gateway IP address. The gateway router then routes the packet toward the correct destination network, enabling communication across different subnets and networks.
Concept tested: Default gateway role in inter-subnet IP routing
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/tcpip-addressing-and-subnetting
Topics
Community Discussion
No community discussion yet for this question.