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CEH: Certified Ethical Hacker
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CEH: Certified Ethical Hacker
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1. A self-replicating malicious program that attempts installation beneath antivirus software by directly intercepting the interrupt handlers of the operating system to evade detection.

2. A group of people - gathered together by a business entity - working to address a specific problem or goal.

3. Actions - devices - procedures - techniques - or other measures intended to reduce the vulnerability of an information system.

4. Cracking Tools

5. A method of permitting only MAC addresses in a preapproved list network access. Addresses not matching are blocked.

6. A mode of operation for a block cipher - with the characteristic that each possible block of plaintext has a defined corresponding ciphertext value - and vice versa

7. A method in cryptography by which cryptographic keys are exchanged between users - allowing use of a cryptographic algorithm (for example - the Diffie-Hellman key exchange).

8. An Ethernet networking system transmitting data at 100 million bits per second (Mbps) - 10 times the speed of an earlier Ethernet standard. Derived from the Ethernet 802.3 standard - it is also known as 100BaseT.

9. When an authorized person allows (intentionally or unintentionally) someone to pass through a secure door - despite the fact that the intruder does not have a badge.

10. An electronic version of junk mail. Unsolicited commercial e-mail sent to numerous recipients.

11. A type of encryption where the same key is used to encrypt and decrypt the message.

12. Network Scanning

13. A wireless access point that has either been installed on a secure company network without explicit authorization from a local network administrator - or has been created to allow a hacker to conduct a man-in-the-middle attack.

14. A method used to prevent IDS detection by dividing the request into multiple parts that are sent in different packets

15. An attack where the hacker positions himself between the client and the server - to intercept (and sometimes alter) data traveling between the two.

16. An unknown deficiency in software or some other product that results in a security vulnerability being identified.

17. The transmission of digital signals without precise clocking or synchronization.

18. A portion of memory used to temporarily store output or input data.

19. A string that represents the location of a web resource

20. A denial-of-service technique that uses numerous hosts to perform the attack.

21. A small space having two sets of interlocking doors; the first set of doors must close before the second set opens. Typically authentication is required for each door - often using different factors. For example - a smart card may open the first door

22. The last portion of the SID that identifies the user to the system in Windows. A RID of 500 identifies the administrator account.

23. A data encryption/decryption program often used for e-mail and file storage.

24. A storage buffer that transparently stores data so future requests for the same data can be served faster.

25. A value used to control cryptographic operations - such as decryption -encryption - signature generation - and signature verification.

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