The scalability of servers is higher than that of personal computers.

• A.TRUE
• B.FALSE

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Write a rule with iptables that does not allow 172.16.0.0.0/16 to access this device, which rule is correct?

• A.iptables -t filter -P INPUT -s 172.16.0.0/16 -p all -j DROP
• B.iptables -t filter -A INPUT -s 172.16.0.0/16 -p all -j DROP
• C.iptables -t filter -P INPUT -s 172.16.0.0/16 -p all -j ACCEPT
• D.iptables -t filter -P INPUT -d 172.16.0.0/16 -p all -j ACCEPT

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In the Client-Initiated VPN configuration, it is generally recommended to plan the address pool and headquarters network address as different network segments, otherwise you need to turn on the proxy forwarding function on the gateway device.

• A.False
• B.True

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When connecting to Wi-Fi in public places, which of the following is relatively safer?

• A.Connect to unencrypted free Wi-Fi for online shopping
• B.Connect to encrypted free Wi-Fi for online transfer operations
• C.Connect to unencrypted Wi-Fi hotspots
• D.Connect to the paid Wi-Fi hotspot provided by the operator and only browse the Internet

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Which of the following options is correct for the description of the rating of the level protection system in the
2.0 class protection system?

• A.Level 3: After the information system is damaged, it will cause serious damage to the legitimate rights and interests of citizens, legal persons and other organizations, or cause damage to social order and public interests and also cause damage to national security.
• B.Level 1: After the information system is damaged, it will cause serious damage to the legitimate rights and interests of citizens, legal persons and other organizations, but will not damage national security, social order and public interests.
• C.Level 4: When the information system is damaged, it will cause particularly serious damage to social order and public interests, or cause serious damage to national security.
• D.Level 5: When the information system is damaged, it will cause particularly serious damage to national security.

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