What is the purpose of the TTL field in the IP header?

To specify the maximum time a packet can remain in a router's queue

To limit the number of hops a packet can traverse

To prioritize packets based on their time sensitivity

To encrypt the packet for secure transmission

What does a router do when it needs to forward a packet that is larger than the outgoing interface's MTU?

It compresses the packet to fit the MTU

It drops the packet and sends an ICMP error

It forwards the packet unchanged and relies on the destination to handle it

It fragments the packet into smaller pieces

What does a router do with a packet that has a TTL of 1 when it receives it?

It forwards the packet without decrementing the TTL

It increments the TTL to 2 and forwards the packet

It decrements the TTL to 0 and drops the packet

It sends the packet back to the source

What happens to the source and destination MAC addresses when a router forwards a packet to the next hop?

They are swapped with the IP addresses in the packet

They remain unchanged throughout the journey

They are rewritten to the MAC addresses of the outgoing interface and the next hop

They are removed and replaced with the original sender's MAC

Which characteristic best distinguishes a Layer 3 device from a Layer 2 device?

It uses MAC addresses to make forwarding decisions

It only forwards broadcast traffic

It forwards packets based on destination IP addresses

It operates only within a single broadcast domain

Dell Networking Foundations

Domain 3Objective 4

Explain the Forwarding Logic Used by Layer 3 Capable Devices NETWORKING-FOUNDATIONS Practice Questions (Page 1)

Part of the IP Networking domain, which accounts for 25% of the NETWORKING-FOUNDATIONS exam.

27questions here

6free pages

9concepts

25%of the exam

Questions 1–5

1foundation · easy
What is the purpose of the TTL field in the IP header?
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2foundation · easy
What does a router do when it needs to forward a packet that is larger than the outgoing interface's MTU?
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3foundation · easy
What does a router do with a packet that has a TTL of 1 when it receives it?
Select an answer first
4foundation · easy
What happens to the source and destination MAC addresses when a router forwards a packet to the next hop?
Select an answer first
5foundation · easy
Which characteristic best distinguishes a Layer 3 device from a Layer 2 device?
Select an answer first

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