Theory Test 2 Study Guide Questions & Answers 2023/2024

Theory Test 2 Study Guide Questions & Answers 2023/2024 When using public and private keys to connect to an SSH server, where must your public key be placed before you can connect? - ANSWER-In an authorization file on the host where the SSH server is. What are the three tenets of the CIA triad, and how do they provide assurances that data will be protected? - ANSWER-Confidentiality: Data can only be viewed by its intended recipient or at its intended destination. Integrity: Data was not modified after the sender transmitted it and before the receiver picked it up. Availability: Data is available and accessible to the intended recipient when needed, meaning the sender is accountable for successful delivery of the data. Describe how public key encryption works. - ANSWER-In public key encryption , data is encrypted using two keys: One is a key known only to a user (that is, a private key), and the other is a public key associated with the user. A public key server is a publicly accessible host (such as a server on the Internet) that freely provides a list of users' public keys, much as a telephone book provides a list of peoples' phone numbers. Keys are acquired by 1. Asking the user. 2. A third-party source, such as a public key server. Describe the TLS/SSL handshake process as initiated by a web client accessing a secure website. - ANSWER-1. The browser, representing the client computer in this scenario, sends a client_hello message to the Web server, which contains information about what level of security the browser is capable of accepting and what type of encryption the browser can decipher. The client_hello message also establishes a randomly generated number that uniquely identifies the client and another number that identifies the SSL session. 2. The server responds with a server_hello message that confirms the information it received from the browser and agrees to certain terms of encryption based on the options supplied by the browser. Depending on the Web server' s preferred encryption method, the server may choose to issue to the browser a public key or a digital certificate.