What are two symptoms that indicate that a computer system may be a victim of DNS spoofing? (Choose two.)

What are two symptoms that indicate that a computer system may be a victim of DNS spoofing? (Choose two.)

• The output of the nslookup command reports an unknown resolver name and IP address.
• Entering www.cisco.com in a browser displays a popular gaming site instead of the Cisco homepage.
• System files have been renamed and some user files are missing from the computer hard drive.
• A user is receiving thousands of junk emails each day and contacts report receiving spam from the user.
• The user receives Access Denied errors when attempting to download files from the network servers.