Which of the following is designed to protect the Internet resolvers (clients) from forged DNS data created by DNS cache poisoning?

• A.Stub resolver
• B.BINDER
• C.Split-horizon DNS
• D.Domain Name System Extension (DNSSEC)

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Which of the following is used to gather information about a remote network protected by a firewall?

• A.Warchalking
• B.Wardialing
• C.Firechalking
• D.Firewalking

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Against which of the following does SSH provide protection?
Each correct answer represents a complete solution. Choose two.

• A.DoS attack
• B.IP spoofing
• C.Password sniffing
• D.Broadcast storm

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Adam works as a Network administrator for Umbrella Inc. He noticed that an ICMP ECHO requests is coming from some suspected outside sources. Adam suspects that some malicious hacker is trying to perform ping sweep attack on the network of the company. To stop this malicious activity, Adam blocks the ICMP ECHO request from any outside sources.
What will be the effect of the action taken by Adam?

• A.Network turns completely immune from the ping sweep attacks.
• B.Network is still vulnerable to ping sweep attack.
• C.Network is protected from the ping sweep attack until the next reboot of the server.
• D.Network is now vulnerable to Ping of death attack.

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Which of the following is the method of hiding data within another media type such as graphic or document?

• A.Packet sniffing
• B.Cryptanalysis
• C.Steganography
• D.Spoofing

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