What is the OSI model? The Open Systems Interconnection or OSI model is a conceptual model that standardizes how different communication systems should communicate with each other using standard protocols. The development of the OSI model started in the 1970s. And, it...
What is Simple Mail Transfer Protocol (SMTP)? Simple Mail Transfer Protocol (SMTP) is a protocol using which emails are transported over the Internet. The protocol was first defined in 1982 and it is used by mail servers to send and receive email messages. How does...
What is DHCP? DHCP or Dynamic Host Configuration Protocol is a network protocol using which a device in a network gets an IP address and other network configuration parameters from a server. In order to be able to communicate with other devices in a TCP/IP network, a...
What is Digital Forensics? Digital forensics is a branch of forensic science. It deals with the identification, preservation, analysis, and presentation of digital evidence as part of an investigation that relates to cybercrime. Digital forensics is useful to...
What is the DNS Amplification attack? A DNS amplification attack is a Denial of Service attack, in which an attacker sends a large number of DNS requests to DNS resolvers. The attacker uses the IP address of the targeted victim as the source IP address in all the...
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