CCNA Routing and Switching (legacy) — Question 26

Which statement about upgrading a cisco IOS device with TFTP server?

Answer options

• A. the operation is performed in active mode
• B. the operation is performed in unencrypted format
• C. the operation is performed in passive mode
• D. the cisco IOS device must be on the same LAN as the TFTP server

Correct answer: D

Explanation

The correct answer is D because the Cisco IOS device must be able to communicate directly with the TFTP server, which typically requires them to be on the same local area network (LAN). Options A, B, and C do not accurately describe the requirements or characteristics of the TFTP upgrade process for Cisco IOS devices.