Operating System Mcqs

Page No. 51

How do viruses avoid basic pattern match of antivirus?


aThey are encrypted

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bThey act with special permissions

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cThey modify themselves

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dNone of the mentioned

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What are the two features of a tripwire file system?


aIt is a tool to monitor file systems

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bIt is used to automatically take corrective action

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cIt is used to secure UNIX system

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dNone of the mentioned

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Which direction access cannot happen using DMZ zone by default?


aCompany computer to DMZ

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bInternet to DMZ

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cInternet to company computer

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dCompany computer to internet

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What is the best practice in the firewall domain environment?


aCreate two domain trusted and untrusted domain

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bCreate strong policy in firewall to support different types of users

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cCreate a Demilitarized zone

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dCreate two DMZ zones with one untrusted domain

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What is used to protect network from outside internet access?


aA trusted antivirus

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b24 hours scanning for virus

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cFirewall to separate trusted and untrusted network

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dDeny users access to websites which can potentially cause security leak

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What is not an important part of security protection?


aLarge amount of RAM to support antivirus

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bStrong passwords

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cAudit log periodically

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dScan for unauthorized programs in system directories

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What are strengths of Network based IDS?


aCost of ownership reduced

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bMalicious intent detection

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cReal time detection and response

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dAll of the mentioned

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View Answer All of the mentioned

What are characteristics of Network based IDS?


aThey look for attack signatures in network traffic

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bFilter decides which traffic will not be discarded or passed

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cIt is programmed to interpret a certain series of packet

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dIt models the normal usage of network as a noise characterization

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What are characteristics of stack based IDS?


aThey are integrated closely with the TCP/IP stack and watch packets

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bThe host operating system logs in the audit information

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cIt is programmed to interpret a certain series of packets

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dIt models the normal usage of network as a noise characterization

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What are the strengths of the host based IDS?


aAttack verification

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bSystem specific activity

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cNo additional hardware required

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dAll of the mentioned

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View Answer All of the mentioned

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