Railway Science (Computer – Computer Security)Total Questions: 31. Which of the following is an antivirus software? [RRB NTPC CBT - I (05/01/2021) Evening](a) Google(b) XML(c) Norton(d) MicrosoftCorrect Answer: (c) NortonSolution:Examples of antivirus software: Webroot, Kaspersky, Avira, Avast, Sophos.2. Which of the following is the system designed to prevent unauthorized access to or from a private network? [RRB NTPC CBT - I (31/01/2021) Evening](a) Repeater(b) Packet filter(c) Bridge(d) FirewallCorrect Answer: (d) FirewallSolution:Firewall are generally designed to protect network traffic and connections, and therefore do not attempt to authenticate individual users when determining who can access a particular computer or network.3. Which of the following refers to protection of data against accidental or intentional disclosure to unauthorized persons, or unauthorised modification or destruction? [RRB NTPC CBT - I (03/02/2021) Morning](a) Database(b) Data redundancy(c) Data Security(d) Privacy dataCorrect Answer: (c) Data SecuritySolution:Data redundancy is a condition created within a database or data storage technology in which the same piece of data is held in two separate places.Submit Quiz