is ccna better than network+

is ccna better than network+.Figure 14-8 shows the Slowloris tool being used to launch an attack on a Web site.. ..... ::cc.cc:. :rccoocc:........... ........................... . :ccc Welcome.toSlowloris -thelowbandwidth,y@tgreedyandpoisonousHTTPclientDefaultingtoport80.Defaultingtoa5secondtcpconnectiontimeout . ib Defaultingtoa100secondre-trytimeout.Defaultingto1060connections. multithreadingenabled. connectingto Building com:8G every 1G0 seconds with 1Q00 sockets: Building sockets. building sockets..Building sockets,sockets. building sockets,sockets. building sockets. building sockets. building sockets. building sockets,sockets. buildingBuildingFigure 14-8 Slowloris for launching an attack on a websiteThe toolTo bypass access control security mechanisms, a resource depletion attack consumes the resources used by all processes, forcing the system to open automatically in the event of a failure, which means access to unauthorized systems and networks is allowed. Network administrators typically configure certain access control systems so that they are open (access control policies disabled) in the event of a failure, and resource depletion attacks are extremely effective against such access control systems. The attack can also be launched to deplete the resources of a tracking-enabled system (e.g., an intrusion detection tool or other network sensor) so that an attacker can "run amok" while the system is "short-circuited" without being recorded. An attacker can launch a resource depletion attack against a logging system with attack discovery capabilities because the attacker knows that many network administrators do not have the awareness and skills to prevent resource depletion attacks, and a monitoring system "short-circuit" cannot be avoided. In a security incident498 Chapter 14 Security Evasion TechniquesIn a security incident 498 Chapter 14 Security Evasion Techniques investigation, this can hinder the collection of evidence and leave the attacker legally immune from charges in an information breach investigation. Sending a "giant stream" directly to the IPS is a common resource depletion attack.A defense strategy should be implemented to stop resource depletion attacks. The first layer of defense is usually built by the network equipment vendor and involves methods of detecting unconventional or unauthorized requests for resources. The defense philosophy is to determine the specific time at which an attack is launched, deny further access to the attacker for a specific period of time, and allow system resources to continue processing traffic without disrupting service. A simple way to implement this philosophy is to enable "throttling", which limits the total amount of services that a given user or group can consume, thus enforcing an acceptable amount of resource consumption. Sometimes these features need to be enabled before they can be enforced, so it is best practice to verify that the security solution takes into account resource depletion defenses.Important concepts related to resource depletion attacks are shown below. (|1 Resource depletion is the consumption of resources needed to execute an operation.