CCNA SECURITY COURSE BOOKLET VERSION 1.2 PDF

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Ccna Security Course Booklet Version 1.2 Pdf

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CCNA Security Course Booklet Version 2. Cisco Networking Academy

Good or bad, hacking is a driving force in network security. From a business perspective, it is important to minimize the effects of hackers with bad intentions.

Businesses lose productivity when the network is slow or unresponsive.

Business profits are impacted by data loss and data corruption. The job of a network security professional is to stay one step ahead of the hackers by attending training and workshops, participating in security organizations, subscribing to real-time feeds regarding threats, and perusing security websites on a daily basis.

The network security professional must also have access to state-of-the art security tools, protocols, techniques, and technologies. Network security professionals should have many of the same traits as law enforcement professionals.

They should always remain aware of malicious activities and have the skills and tools to minimize or eliminate the threats associated with those activities. Hacking has the unintended effect of putting network security professionals at the top when it comes to employability and compensation.

However, relative to other technology professions, network security has the steepest learning curve and the greatest demand for engaging in constant professional development.

Hacking started in the s with phone freaking, or phreaking, which refers to using various audio frequencies to manipulate phone systems. As communication systems evolved, so did hacking methods.

Wardialing became popular in the s with the use of computer modems. Wardialing programs automatically scanned telephone numbers within a local area, dialing each one in search of computers, bulletin board systems, and fax machines.

They should always remain aware of malicious activities and have the skills and tools to minimize or eliminate the threats associated with those activities.

Hacking has the unintended effect of putting network security professionals at the top when it comes to employability and compensation. However, relative to other technology professions, network security has the steepest learning curve and the greatest demand for engaging in constant professional development. Hacking started in the s with phone freaking, or phreaking, which refers to using various audio frequencies to manipulate phone systems.

As communication systems evolved, so did hacking methods.

Wardialing became popular in the s with the use of computer modems. Wardialing programs automatically scanned telephone numbers within a local area, dialing each one in search of computers, bulletin board systems, and fax machines. When a phone number was found, password-cracking programs were used to gain access.

Wardriving began in the s and is still popular today. With wardriving, users gain unauthorized access to networks via wireless access points.

This is accomplished using a vehicle and a wirelessenabled portable computer or PDA. Password-cracking programs are used to authenticate, if necessary, and there is even software to crack the encryption scheme required to associate to the access point. A number of other threats have evolved since the s, including network scanning tools such as Nmap and SATAN, as well as remote system administration hacking tools such as Back Orifice.

Network security professionals must be familiar with all of these tools.A number of other threats have evolved since the s, including network scanning tools such as Nmap and SATAN, as well as remote system administration hacking tools such as Back Orifice. When a phone number was found, password-cracking programs were used to gain access.

For many, it means Internet programmers who try to gain unauthorized access to devices on the Internet. Wardialing programs automatically scanned telephone numbers within a local area, dialing each one in search of computers, bulletin board systems, and fax machines.

Network security professionals should have many of the same traits as law enforcement professionals.

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