CompTIA SY0-201 Security+ Exam Guide phần 7 ppsx

... Unguided Media Electromagnetic waves have been transmitted to convey signals literally since the inception of radio. Unguided media is a phrase used to cover all transmission media not guided ... ability to examine the data traffic the host was generating and receiving. Most HIDS focus on the log files or audit trails generated by the local operating system. On UNIX systems, the exam...

Ngày tải lên: 10/08/2014, 10:21

... financial institutions, for example, require that certain security measures be taken. Other standards may be set by the organization to meet its own security goals. Guidelines are SY0 - 201 ... - 18 - recommendations relating to a policy. The key term in this case is recommendation— guidelines are not mandatory steps. Procedures are the step-by-step instructions on how to implement...

Ngày tải lên: 10/08/2014, 10:21

... easy to exchange a 4-bit key such as b in hex, but exchanging the 128-bit key 4b36402c 572 7 472 d5 571 373 d22 675 b4b is far more difficult to do securely. This exchange of keys is greatly facilitated ... example, were all of the employee’s rights protected? An actual example pertains to the rights of privacy regarding employees’ e-mail messages. As the number of cases involving employ...

Ngày tải lên: 10/08/2014, 10:21

... in IT testing and certification tools, www.testking.com - 1 - CompTIA SY0-201 Security+ Exam Guide Version 2.0 SY0 - 201 Leading the way in IT testing and ... Hubs 6. Bridges 7. Switches 8. Routers 9. Firewalls 10. Wireless 11. Modems 12. Telecom/PBX 13. RAS 14. VPN 15. Intrusion Detection Systems 16. Network Access Control 17. Netw...

Ngày tải lên: 10/08/2014, 10:21

... covered. Invisible ink placed on a document hidden by innocuous text is an example of a steganographic message. Another example is a tattoo placed on the top of a person’s head, visible only when ... ways and through many different media. Covering them all is beyond the scope for this short study guide, but we will discuss one of the most common ways to encode into an image file, LSB enc...

Ngày tải lên: 10/08/2014, 10:21

... organization for individual certificates and for the service of maintaining these certificates. Some examples of public CAs are VeriSign (including GeoTrust and thawte), Entrust, and Go Daddy. One ... SY0 - 201 Leading the way in IT testing and certification tools, www.testking.com - 57 - of risk it is willing to accept. Often a PKI and its components serve as large security...

Ngày tải lên: 10/08/2014, 10:21

... Routers operate by examining each packet, looking at the destination address, and using algorithms and tables to determine where to send the packet next. This process of examining the header ... SY0 - 201 Leading the way in IT testing and certification tools, www.testking.com - 77 - The computer network itself can be considered a large computer system, with performance and .....

Ngày tải lên: 10/08/2014, 10:21

... in the interest of promoting better security for everyone. Information is also gathered through examination and forensic analysis, often after a major incident has already occurred and information ... spreading into your network. Firewalls control traffic flow between zones of network traffic; for example, between the Internet (a zone with no trust) and an internal network (a zone with hi...

Ngày tải lên: 10/08/2014, 10:21

... or game, for example. Once it has been copied and is inside the system, the Trojan will perform its hidden purpose with the user often still unaware of its true nature. A good example of a ... is provided more data for input than it was designed to handle. For example, what would happen if a program that asks for a 7- to 10-character phone number instead receives a string of 150 chara...

Ngày tải lên: 10/08/2014, 10:21

... IP: 10.10.10.32 Management IP: 10.10.10.22 Public IP: 10.10.20.22 474 Chapter 11 14 _78 1 274 ch11.qxp 6/22/06 12:23 AM Page 474 ■■ Options ■■ Help The File Menu Option The File menu option provides ... physical connection to the Inter- net happens to be). The Nortel VPN Client 4 47 13 _78 1 274 ch10.qxp 6/22/06 12:12 AM Page 4 47 463 Nortel provides documentation and help-menu selection...

Ngày tải lên: 14/08/2014, 14:20