From the following table, identify the wrong answer in terms of Range (ft).
Standard Range (ft)
802.11a 150-150
802.11b 150-150
802.11g 150-150
802.16 (WiMax) 30 miles

• A.802.16 (WiMax)
• B.802.11b
• C.802.11g
• D.802.11a

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What did the following commands determine?

• A.Issued alone, these commands prove nothing
• B.That the true administrator is Joe
• C.That the Joe account has a SID of 500
• D.These commands demonstrate that the guest account has NOT been disabled
• E.These commands demonstrate that the guest account has been disabled

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Kevin, a professional hacker, wants to penetrate CyberTech Inc.'s network. He employed a technique, using which he encoded packets with Unicode characters. The company's IDS cannot recognize the packet, but the target web server can decode them.
What is the technique used by Kevin to evade the IDS system?

• A.Desynchronization
• B.Obfuscating
• C.Session splicing
• D.Urgency flag

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Firewalk has just completed the second phase (the scanning phase) and a technician receives the output shown below. What conclusions can be drawn based on these scan results?
TCP port 21 no response
TCP port 22 no response
TCP port 23 Time-to-live exceeded

• A.The lack of response from ports 21 and 22 indicate that those services are not running on the destination server
• B.The firewall itself is blocking ports 21 through 23 and a service is listening on port 23 of the target host
• C.The scan on port 23 was able to make a connection to the destination host prompting the firewall to respond with a TTL error
• D.The scan on port 23 passed through the filtering device. This indicates that port 23 was not blocked at the firewall

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Mike, a security engineer, was recently hired by BigFox Ltd. The company recently experienced disastrous DoS attacks. The management had instructed Mike to build defensive strategies for the company's IT infrastructure to thwart DoS/DDoS attacks. Mike deployed some countermeasures to handle jamming and scrambling attacks. What is the countermeasure Mike applied to defend against jamming and scrambling attacks?

• A.A Disable TCP SYN cookie protection
• B.Allow the usage of functions such as gets and strcpy
• C.Implement cognitive radios in the physical layer
• D.Allow the transmission of all types of addressed packets at the ISP level

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