how to pass ccna exam in first attempt

how to pass ccna exam in first attempt.2016-09-0611:22EDTNmap scanreport for 172.18.104.129Hostisup (0.0071slatency).Nmap scanreport for 172.18.104.130Hostisup (0.0076slatency).Nmap scanreport for 172.18.104.132 Hostis up (0.0076slatency). Nmap scanreport for 172.18.104.133 Hostis up (0.0079slatency). Nmap scanreport for 172.18.104.134 Hostis up(0.0074slatency). Nmap scanreport for 172.18.104.135 Hostis up(0.Oilslatency). Nmap done: 8IP addresses(6 hosts up) scannedin3.75 seconds472 Chapter 13 Types of Attacks and Vulnerabilities13.2.2 Social Engineering Social engineering attacks target the weakest link, the human. If an attacker can get a "person (user)" to reveal information directly, it is much easier to launch an attack than using any other means of detecting the attack. An attacker can perform a social engineering attack through emails or misdirection of web pages to trick users into clicking on certain links to obtain information. Social engineering attacks can also be executed by someone from an internal or external entity in the form of a phone call. The use of normal human interaction to gather information is one of the main forms of social engineering attacks. Suppose the reader is a network security officer at a company whose job responsibilities are to manage network firewalls and other security infrastructure devices. The attacker could post an advertisement for a cybersecurity officer for a position with a very generous package that is very attractive to the reader. As long as the job description lists benefits and perks that far exceed those of the company the reader currently works for, the reader is sure to apply for the position. The criminal (attacker) will then set up an interview for the reader. During the interview, the reader is sure to "show off" his or her skills and experience, and the "interviewer" will inevitably ask the reader how he or she configures the company's firewalls and other network infrastructure equipment. The reader will inadvertently reveal information about the deployment of firewalls, network configurations, and network design practices inherent in the company's network. In this way, the attacker will have a lot of inside information about the reader's company's network, and will not even have to perform network scanning or reconnaissance attacks.The following are some of the other techniques used in social engineering attacks.:S1W