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Free Practice Quiz Question List

7 Configuration, Verification, and Troubleshooting Online Quiz Questions

Use this free practice quiz with 20 questions to review 7 Configuration, Verification, and Troubleshooting, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: The running configuration is active, and the startup configuration is the saved configuration used when the device boots.

  1. A

    True

  2. B

    False

02
True or false
1 point

True or false: If a ping to a destination succeeds, that proves every application and traffic type to that destination is working.

  1. A

    True

  2. B

    False

03
Choose one
1 point

Which command is the best choice for a quick overview of interface IP addresses and status?

  1. A

    show ip route

  2. B

    show ip interface brief

  3. C

    show startup-config

  4. D

    show mac address-table

04
Choose one
1 point

A device can reach a server by IP address but not by hostname. Which next step best targets the likely cause?

  1. A

    Check DNS configuration and compare a test by hostname with one by IP

  2. B

    Enable the interface with no shutdown without checking its status

  3. C

    Change the trunk's native VLAN

  4. D

    Run debug continuously until the hostname responds

05
Choose one
1 point

An interface reports up/down. Which interpretation and follow-up are most appropriate?

  1. A

    The interface is administratively disabled; save the configuration immediately

  2. B

    The physical link is absent; check only the local IP address

  3. C

    The physical link exists, but the line protocol is not operational; check link-type settings such as encapsulation and the far end

  4. D

    The interface is fully operational; investigate DNS first

06
Written response
1 point

What full Cisco IOS command displays the saved configuration that the device uses at boot?

07
Written response
1 point

After stopping debugging, what full Cisco IOS command can you use to verify that debugging is off?

08
Fill in the blank
1 point

The saved configuration used when a Cisco device boots is the .

09
Fill in the blank
1 point

When an interface is reported as , it usually indicates that the interface has been disabled.

10
Choose all
1 point

A trunk carries some VLANs but not others. Select all relevant checks for this symptom.

  1. A

    Check the trunk's allowed VLAN list

  2. B

    Check DNS name resolution on the affected hosts

  3. C

    Check native VLAN consistency

  4. D

    Check that the VLANs exist

  5. E

    Save the running configuration before checking the trunk

11
Choose all
1 point

You need to observe a specific event with debug because ordinary verification is insufficient. Select all practices that help limit operational risk.

  1. A

    Choose the narrowest debug relevant to the event

  2. B

    Leave a broad debug running so more events are captured

  3. C

    Check device load before collecting debug output

  4. D

    Collect output briefly and stop debugging promptly

  5. E

    Assume that terminal monitor makes debugging safe

12
Open ended
1 point

A traceroute stops displaying responses after a particular hop. Explain why this does not by itself establish that the hop is faulty, and describe appropriate next checks.

13
Choose one
1 point

Before changing a live device to address a reported fault, which approach best reduces the risk of an unintended change?

  1. A

    Record relevant configuration and status, confirm the device and interface, and consider the change's impact

  2. B

    Make several changes at once so the symptom can be retested faster

  3. C

    Save the current configuration before identifying whether a change is intended

  4. D

    Skip status checks if the affected interface name is known

14
True or false
1 point

True or false: A failed ping is evidence of a reachability-test failure, but it does not alone prove that all traffic to the target is failing.

  1. A

    True

  2. B

    False

15
Choose one
1 point

A configuration change worked before a reboot but is missing afterward. Which commands should you compare first to check whether the change was saved?

  1. A

    Compare show version with show ip interface brief.

  2. B

    Compare show running-config with show startup-config.

  3. C

    Compare show logging with show mac address-table.

  4. D

    Compare show interfaces with show cdp neighbors detail.

16
Written response
1 point

What full Cisco IOS command displays the IPv4 routing table?

17
Choose one
1 point

An interface reports administratively down. What is the appropriate next step?

  1. A

    Replace the cable immediately; the status proves there is no physical link.

  2. B

    Change the interface speed and duplex settings.

  3. C

    Inspect the interface configuration and enable it with no shutdown if it should be active.

  4. D

    Add a default route to the device.

18
Choose one
1 point

A device can reach a server by IP address but not by hostname. Which check best targets this symptom?

  1. A

    Check DNS configuration and compare a test by hostname with one by IP.

  2. B

    Check whether the interface is administratively disabled.

  3. C

    Change the trunk's native VLAN.

  4. D

    Save the running configuration to the startup configuration.

19
Written response
1 point

After a brief diagnostic session, what complete Cisco IOS command can you enter to stop all debugging?

20
Choose one
1 point

A traceroute stops responding at an intermediate hop, while the cause of the outage is unknown. What can you conclude from that result?

  1. A

    The stopping router is definitely dropping all traffic.

  2. B

    The destination is definitely offline.

  3. C

    The source device has an incorrect subnet mask.

  4. D

    The path is narrowed for investigation, but the stopping hop is not proven faulty.