CEH-001 無料問題集「GAQM Certified Ethical Hacker (CEH)」
Bob, an Administrator at XYZ was furious when he discovered that his buddy Trent, has launched a session hijack attack against his network, and sniffed on his communication, including administrative tasks suck as configuring routers, firewalls, IDS, via Telnet.
Bob, being an unhappy administrator, seeks your help to assist him in ensuring that attackers such as Trent will not be able to launch a session hijack in XYZ.
Based on the above scenario, please choose which would be your corrective measurement actions. (Choose two)
Bob, being an unhappy administrator, seeks your help to assist him in ensuring that attackers such as Trent will not be able to launch a session hijack in XYZ.
Based on the above scenario, please choose which would be your corrective measurement actions. (Choose two)
正解：A、D
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解説: (JPNTest メンバーにのみ表示されます)
A developer for a company is tasked with creating a program that will allow customers to update their billing and shipping information. The billing address field used is limited to 50 characters. What pseudo code would the developer use to avoid a buffer overflow attack on the billing address field?
正解：C
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You have been called to investigate a sudden increase in network traffic at XYZ. It seems that the traffic generated was too heavy that normal business functions could no longer be rendered to external employees and clients. After a quick investigation, you find that the computer has services running attached to TFN2k and Trinoo software. What do you think was the most likely cause behind this sudden increase in traffic?
正解：D
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解説: (JPNTest メンバーにのみ表示されます)
A Security Engineer at a medium-sized accounting firm has been tasked with discovering how much information can be obtained from the firm's public facing web servers. The engineer decides to start by using netcat to port 80.
The engineer receives this output:
HTTP/1.1 200 OK Server: Microsoft-IIS/6 Expires: Tue, 17 Jan 2011 01:41:33 GMT DatE. Mon, 16 Jan 2011 01:41:33 GMT Content-TypE. text/html Accept-Ranges: bytes Last-ModifieD. Wed, 28 Dec 2010 15:32:21 GMT ETaG. "b0aac0542e25c31:89d" Content-Length: 7369
Which of the following is an example of what the engineer performed?
The engineer receives this output:
HTTP/1.1 200 OK Server: Microsoft-IIS/6 Expires: Tue, 17 Jan 2011 01:41:33 GMT DatE. Mon, 16 Jan 2011 01:41:33 GMT Content-TypE. text/html Accept-Ranges: bytes Last-ModifieD. Wed, 28 Dec 2010 15:32:21 GMT ETaG. "b0aac0542e25c31:89d" Content-Length: 7369
Which of the following is an example of what the engineer performed?
正解：A
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In the context of password security: a simple dictionary attack involves loading a dictionary file (a text file full of dictionary words) into a cracking application such as L0phtCrack or John the Ripper, and running it against user accounts located by the application. The larger the word and word fragment selection, the more effective the dictionary attack is. The brute force method is the most inclusive - though slow. Usually, it tries every possible letter and number combination in its automated exploration. If you would use both brute force and dictionary combined together to have variations of words, what would you call such an attack?
正解：A
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