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210-250 – Understanding Cisco Cybersecurity Fundamentals

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Showing 13–15 of 20 questions

Question 13

What input validation can a program perform to prevent buffer overflow attacks?

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    Data input size matches what system has allocated.
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    User has administrative rights to install programs.
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    whether the input was downloaded from the Internet
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    Data input is not from a command line argument.
Question 14

How can the established keyword in an ACL entry be used?

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    to permit only the returning TCP packets from an already existing TCP connection, and deny the initial TCP packet of a new session from an untrusted network
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    to permit both the initial TCP packet of a new session and the returning TCP packets from an existing TCP connection
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    to permit only the initial TCP packet of a new session
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    to change a router into a true stateful firewall controlling the access on a session-by-session basis
Question 15

What is the difference between spear phishing and whaling?

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    There is no difference. Both are targeted phishing.
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    Spear phishing focuses on voice services and whaling is primarily sent through SMS messages.
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    Both are targeted phishing, but only whaling targets individuals in executive positions.
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    Spear phishing involves email, and whaling involves DNS cache poisoning.