How many collision domains are shown in the diagram below?

• A.1
• B.2
• C.3
• D.6

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What is the default subnet mask for an IPv4 Class C network?

• A.255.0.0.0
• B.255.255.0.0
• C.255.255.255.0
• D.255.255.255.255

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A Junior Network Engineer is working in a secure environment where plaintext management access to network devices is strictly forbidden. They need to remotely manage an AOS-CX switch using the command-line interface (CLI).
Which protocol should be disabled to comply with this security policy?

• A.SNMPv2
• B.FTP
• C.Telnet
• D.SFTP

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A user reports intermittent connectivity after a network cable was replaced. Which troubleshooting step should be performed first?

• A.Reboot all switches in the network
• B.Replace the switch immediately
• C.Verify interface status, speed, and error counters
• D.Reconfigure all VLANs

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Which statement about in-band management is true?

• A.It provides better security and reliability than out-of-band management.
• B.It is more complex to implement than out-of-band management.
• C.It can still be used if the main network is down.
• D.It shares the same network path as user data.

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