- (Topic 7)
Joseph was the Web site administrator for the Mason Insurance in New York, who's main Web site was located at www.masonins.com. Joseph uses his laptop computer regularly to administer the Web site.
One night, Joseph received an urgent phone call from his friend, Smith. According to Smith, the main Mason Insurance web site had been vandalized! All of its normal content was removed and replaced with an attacker's message ''Hacker Message: You are dead! Freaks!
From his office, which was directly connected to Mason Insurance's internal network, Joseph surfed to the Web site using his laptop. In his browser, the Web site looked completely intact. No changes were apparent. Joseph called a friend of his at his home to help troubleshoot the problem. The Web site appeared defaced when his friend visited using his DSL connection. So, while Smith and his friend could see the defaced page, Joseph saw the intact Mason Insurance web site. To help make sense of this problem, Joseph decided to access the Web site using his dial-up ISP. He disconnected his laptop from the corporate internal network and used his modem to dial up the same ISP used by Smith.
After his modem connected, he quickly typed www.masonins.com in his browser to reveal the following web page:
H@cker Mess@ge:
Y0u @re De@d! Fre@ks!
After seeing the defaced Web site, he disconnected his dial-up line, reconnected to the internal network, and used Secure Shell (SSH) to log in directly to the Web server. He ran Tripwire against the entire Web site, and determined that every system file and all the Web content on the server were intact.
How did the attacker accomplish this hack?

1. A. ARP spoofing
2. B. SQL injection
3. C. DNS poisoning
4. D. Routing table injection

Correct Answer: C
External calls for the Web site has been redirected to another server by a successful DNS poisoning.

- (Topic 4)
Which of the following processes of PKI (Public Key Infrastructure) ensures that a trust relationship exists and that a certificate is still valid for specific operations?

1. A. Certificate issuance
2. B. Certificate validation
3. C. Certificate cryptography
4. D. Certificate revocation

Correct Answer: B

- (Topic 4)
How is sniffing broadly categorized?

1. A. Active and passive
2. B. Broadcast and unicast
3. C. Unmanaged and managed
4. D. Filtered and unfiltered

Correct Answer: A

- (Topic 4)
The fundamental difference between symmetric and asymmetric key cryptographic systems is that symmetric key cryptography uses which of the following?

1. A. Multiple keys for non-repudiation of bulk data
2. B. Different keys on both ends of the transport medium
3. C. Bulk encryption for data transmission over fiber
4. D. The same key on each end of the transmission medium

Correct Answer: D

- (Topic 8)
Which of the following attacks takes best advantage of an existing authenticated connection?

1. A. Spoofing
2. B. Session Hijacking
3. C. Password Sniffing
4. D. Password Guessing

Correct Answer: B
Session hijacking is the act of taking control of a user session after successfully obtaining or generating an authentication session ID. Session hijacking involves an attacker using captured, brute forced or reverse-engineered session IDs to seize control of a legitimate user's Web application session while that session is still in progress.