Question:
Which network device serves as the entry and exit point of a network, as all data coming in or going out of a network must first pass through it in order to use routing paths?
Which network device serves as the entry and exit point of a network, as all data coming in or going out of a network must first pass through it in order to use routing paths?
Show Hint
The device that acts as the entry and exit door of a network and links different networks is a gateway.
Updated On: Oct 20, 2026
- Modem
- Gateway
- Switch
- Repeater
Show Solution
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The Correct Option is B
Solution and Explanation
Step 1: Read the clue:
The device sits at the entry and exit point of a network.
All incoming and outgoing data must pass through it. It also uses routing paths.
Step 2: Match with the devices:
A gateway connects two networks that may use different protocols.
It works as the doorway of a network and translates data between them.
This fits the clue.
Step 3: Check the other options:
A modem converts digital signals to analog signals and back, so a computer can use a phone or cable line. It is not a doorway between networks.
A switch connects computers inside one LAN and sends data only to the right port.
A repeater takes a weak signal and boosts it, so it can travel further.
Final Answer:
The device is a Gateway, option (B).
The device sits at the entry and exit point of a network.
All incoming and outgoing data must pass through it. It also uses routing paths.
Step 2: Match with the devices:
A gateway connects two networks that may use different protocols.
It works as the doorway of a network and translates data between them.
This fits the clue.
Step 3: Check the other options:
A modem converts digital signals to analog signals and back, so a computer can use a phone or cable line. It is not a doorway between networks.
A switch connects computers inside one LAN and sends data only to the right port.
A repeater takes a weak signal and boosts it, so it can travel further.
Final Answer:
The device is a Gateway, option (B).
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