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packet examination and blocking processes. Software-based firewalls reside on the computer systems they protect, as in the case of the built-in firewalls in the Windows operating systems OS. Because hardware-based firewalls use resources from a dedicated devic e, and do not share a systems resources in the way that software firewalls do, they may be more robust. On the other hand, firewal ls that reside in the OS can offer protection to mobile computers that employees use outside of the network. The two types of fire resume templates walls are not mutually exclusive and can be used in combination. A Windows XP-based workstation may have the built-in firewall ena bled and may also connect to a Windows network supported by a router with a hardware-based firewall. Use Businesses use firewalls Bio Limousin Moteur de recherche to protect their data, applications and systems. Businesses may have data that is essential to the operation of the business itsel .

of security measures that businesses put in place. These measures include, for example, identity management platforms to ensure t hat users are who they say they are, anti-malware applications such as anti-virus and anti-spyware, and end-point biometric securi ty systems such as fingerprint readers. Firewalls are particularly advantageous in that they provide single-point-of-entry protect ion whose actions administrators can audit and record. In this role, firewalls represent the first line of defense in protecting a free ebooks business digital assets. Considerations Businesses that deploy firewalls must recognize that firewalls require maintenance over t ime and that such maintenance requires a specialized skill set. Both hardware and software firewalls require patches and updates t Bio Limousin Moteur de recherche o remain effective. At the same time, businesses must take care not to rely too heavily on firewalls for security to the exclusion .

to create an object variable called user representing the currently logged-in user. It has a property called username, which is a ccessed like this:user- username;It also has a method that logs out the user, which is executed like this:user- logout;In short, o bjects have data, called properties, and functions, called methods. PHP Arrays A PHP array is a flexible set of name and value pai rs. It is flexible because the names can be any string, and the values can be any data type. For example, one item in the array co awesome fonts uld be an integer while the next item is another array. This makes PHP arrays flexible and simple to manage, streamlining the proc ess of quickly producing Web applications. Comparison of Objects and Arrays in PHP The two data types are similar in that they bot Bio Limousin Moteur de recherche h can contain sets of name and value pairs. You can iterate through the properties of an object using a foreach loop as you can wi .

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