Please ans all question for thumbs up.Please ans all question for thumbs up.

Question 50 of 100 Clearance is a concept found only in . DAC (Discretionary Access Control). Temporal Access Control. MAC (Mandatory Access Control). RBAC (Role-Based Access Control). Question 49 of 100 An example of a server that should be placed in the DMZ of a company's network is ? A customer data database server to support sales from web applications The company mail server A Web server that provides information about the company and its products DNS server that hosts records for the company's internal domain Question 48 of 100 Copyright protects a symbol that represents an idea a proprietary process or procedure the expression of an idea the idea itself When Alice sends Bob a message using asymmetric encryption, what key is used to provide integrity of the message when encrypting the hash? Alice's Private Key Bob's Private Key Alice's Public Key the network symmetric crypto variable Question 46 of 100 When deploying patches in large environments, which of the following can increase time efficiency? A written procedure for removing old outdated patches A centralized patch management application An application layer firewall with roll back capability A thorough patch testing environment with direct interconnectivity to the production environment