Outline the Recommended Steps During a Switch OS Upgrade NETWORKING-FOUNDATIONS Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A network engineer has downloaded a Dell switch OS image and verified its checksum. The engineer now needs to transfer the image to the switch. The switch is in a secure lab with no network access to the outside world, but the engineer has a USB drive. What is the most appropriate transfer method?

   • ACopy the image from the USB drive to the switch's flash.
   • BUse SCP to transfer the image over the management network.
   • CUse TFTP to transfer the image from a server on the same network.
   • DUse FTP to transfer the image from the engineer's laptop.
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2. 17expert · hard

   A network engineer needs to upgrade a Dell switch in a remote location. The switch is accessible via the management network, but the engineer's laptop is on a different subnet. The engineer has the OS image on the laptop and needs to transfer it to the switch. The switch supports TFTP, FTP, and SCP. Which method is the most secure and reliable for this transfer?

   • AUse TFTP, which is simpler and faster than SCP.
   • BUse FTP, which is more reliable than TFTP and supports authentication.
   • CUse a USB drive and physically travel to the remote location.
   • DUse SCP, which encrypts the transfer and is more secure than TFTP or FTP.
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4. 18application · medium

   A network administrator is downloading a new OS image for a Dell switch. The download page lists an MD5 checksum. After downloading, the administrator calculates the MD5 checksum of the file and it does not match. What should the administrator do?

   • AIgnore the checksum and transfer the file to the switch anyway.
   • BUse the file but rename it to match the expected filename.
   • CProceed with the upgrade since the file size looks correct.
   • DRe-download the file and verify the checksum again.
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5. 19application · medium

   During an OS upgrade on a Dell switch, the upgrade process fails and the switch is left in a state where it cannot boot. The engineer has a backup of the previous OS image on a USB drive. What is the recommended recovery procedure?

   • ARemove the switch from the network and reinstall the OS via TFTP.
   • BPower cycle the switch repeatedly until it boots with the new OS.
   • CBoot the switch into the boot menu and load the backup image from USB.
   • DReplace the switch's hardware to restore the previous OS.
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6. 20expert · hard

   A network engineer is planning an OS upgrade for a Dell switch that is critical to production. The switch has a redundant power supply and is part of a stack. The engineer has verified hardware compatibility and downloaded the image. What additional pre-upgrade step is essential to minimize downtime and risk?

   • ASchedule the upgrade during a maintenance window and ensure the stack is in a stable state.
   • BUpgrade the switch without notifying users to avoid unnecessary concern.
   • CPerform the upgrade during peak hours to test the switch under load.
   • DDisconnect the redundant power supply to test failover during the upgrade.
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