You have confirmed that a router's routing table is missing a static route for a new subnet. You need to add the route, but the router is also handling production traffic. What should you include in your plan of action?

A rollback plan and a maintenance window to minimize impact

A plan to reboot the router after adding the route

A plan to replace the router with a new one

A plan to document the issue after implementation

Which action is part of the 'Implement the Solution or Escalate' step?

Reviewing the network diagram for potential issues

Asking the user to describe the symptoms again

Pinging the remote server to test connectivity

Carrying out the planned fix on the network device

A network administrator suspects that a rogue DHCP server is causing IP address conflicts on the network. The administrator wants to test this theory without disrupting users. Which action would BEST test the theory?

Use a packet capture on the network to look for DHCP offers from unknown servers

Reboot all switches to clear the DHCP snooping database

Disable the legitimate DHCP server and see if clients still get addresses

Ask users to renew their IP addresses manually

Which action is an example of testing a theory to determine the cause of a network problem?

Implementing a new firewall rule

Pinging the default gateway to verify connectivity

Asking the user when the problem started

Escalating the issue to a senior technician

A technician has identified that a switch's spanning tree protocol (STP) configuration is causing a network loop. The technician has a plan to disable STP on the redundant link to break the loop. What should the technician do BEFORE implementing this change?

Ensure the plan includes a rollback and has been approved per change management procedures

Immediately disable STP on the redundant link

Document the issue and close the ticket

Reboot the switch to clear the loop

CompTIANetwork+

Domain 5Objective 1

Troubleshooting Methodology N10-009 Practice Questions (Page 1)

Part of the Network troubleshooting domain, which makes up ~15% of our current practice bank. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~5–9 in this domain), expect 1–2 from this objective — we provide 33 practice questions to prepare you well beyond it. (estimate)

33questions here

7free pages

7concepts

Questions 1–5

1application · medium
You have confirmed that a router's routing table is missing a static route for a new subnet. You need to add the route, but the router is also handling production traffic. What should you include in your plan of action?
Select an answer first
2foundation · easy
Which action is part of the 'Implement the Solution or Escalate' step?
Select an answer first
3expert · hard
A network administrator suspects that a rogue DHCP server is causing IP address conflicts on the network. The administrator wants to test this theory without disrupting users. Which action would BEST test the theory?
Select an answer first
4foundation · easy
Which action is an example of testing a theory to determine the cause of a network problem?
Select an answer first
5application · medium
A technician has identified that a switch's spanning tree protocol (STP) configuration is causing a network loop. The technician has a plan to disable STP on the redundant link to break the loop. What should the technician do BEFORE implementing this change?
Select an answer first

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