(Top QUALITY 2024/2025 EXAM REVIEW) WGU C172 Network and Security – Foundations. Most Basic review. Rated A+

WGU C172 Network and Security – Foundations. Most Basic review. Rated A+ Social Engineering - -This is a way for an intruder to gain enough information from people to gain access to the network. As an example, an attacker calls a user on a network and claims he is from the computer support division of the network. The attacker tells the user that there is a problem with the user's account and then asks for the user's name and password. Dictionary Attack - -Uses known passwords and many variations (upper- and lowercase and combinations) to try to log in to your account Brute-Force Attack - -The attacker uses every possible combination of characters for the password Packet Sniffing - -the attacker can see the network data packets. The attacker will have to insert a device on the network that allows her to see the data packets. The attacker then watches the data packets until a telnet or FTP data packet passes (or one from many of the other applications that have unencrypted logins). Many of these applications pass the username and password over the network in plain text. Buffer Overflow - -Occurs when a program attempts to put more data into a buffer than it was configured to hold and the overflow writes past the end of the buffer and over adjacent memory locations. Virus - -A piece of malicious computer code that when run on your machine can damage your hardware, software, or other files. Worm - -A type of computer virus that attacks computers, typically proliferating by itself (selfreplicating); it can deny service to networks. Malware - -Term used to encompass all malicious programs intended to harm, disrupt, deny, or gain unauthorized access to a computing system. Malware is short for malicious software. Viruses and worms are considered a type of infectious malware. Denial of service (DoS) - -A service is being denied to a computer, network, or network server. Denial of service attacks can be on individual machines, on the network that connects the machines, or on all machines simultaneously. 2 SYN attack - -An attacker sends many TCP SYN packets to a host, opening up many TCP sessions. The host machine has limited memory set aside for open connections. If all the TCP connections are opened by the SYN attack, other users are kept from accessing services from the computer because the connection buffer is ful