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12 Questions

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Packet Forwarding with Static Routes

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Questions and Answers

What does R1 do if the destination IP address matches a static route entry?

R1 will use the static route to identify the next-hop IP address or exit interface.

What does R1 do if the destination IP address does not match a specific route to the destination network?

R1 will use the default static route (if configured).

What does R1 do if the destination IP address does not match a route table entry?

R1 will drop the packet and send an ICMP message back to the source (i.e., PC1).

What does R2 do when it finds a match in the routing table?

It uses the identified next-hop IP address or exit interface and sends the packet out of its interface towards R3. Signup and view all the answers

What does R3 do if there is no ARP entry for the destination IP address of PC3?

R3 sends an ARP request out of the G0/0/0 interface to search for the MAC address of PC3. Signup and view all the answers

What does R3 use as the destination MAC address and the source MAC address when encapsulating the packet for PC3?

R3 uses the MAC address of PC3 as the destination MAC address and the MAC address of G0/0/0 as the source MAC address. Signup and view all the answers

What are some common reasons for network failures mentioned in the text?

Common reasons for network failures include interface failures, dropped connections by service providers, oversaturated links, and administrator configuration errors. Signup and view all the answers

What is the responsibility of network administrators in relation to network failures?

Network administrators are responsible for pinpointing and solving network problems efficiently. Signup and view all the answers

What are some common troubleshooting commands mentioned in the text?

Common troubleshooting commands include ping to verify Layer 3 connectivity, traceroute to verify the path to a destination network, show ip route to display the routing table, show ip interface brief to display the status of device interfaces, and show cdp neighbors to display a list of directly connected Cisco devices. Signup and view all the answers

What does the ping command help verify in a network?

The ping command helps verify Layer 3 connectivity to a destination. Signup and view all the answers

What does the show ip route command display?

The show ip route command displays the routing table and is used to verify route entries for destination IP addresses. Signup and view all the answers

What information does the show cdp neighbors command provide?

The show cdp neighbors command provides a list of directly connected Cisco devices and is used to validate Layer 1 and Layer 2 connectivity. Signup and view all the answers