【填空题】
42.八国联军于___年，发动了侵华战争。
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答案
1900
解析
暂无解析
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What is an example of social engineering？___
A. gaining access to a computer by observing the user login credentials
B. gaining access to a build through an unguarded entrance
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Which type of Layer 2 attack enables the attacker to intercept traffic that is intended for one specific recipient？___
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Which about nested policy maps in a zone-based firewall is true ?___
A. They are limited to two leve ls in a hierarchical policy
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D. A child policy is a new that uses a pre-existing policy
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In which configuration do you configure the ip ospf authentication key 1 command？___
A. routing process
B. interface
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D. global
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Which statement about command authorization and security contexts is true？___
A. If command authorization is configured， it must be enabled on all contexts.
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Which command do you enter to enable authentication for OSPF on an interface？___
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D. router（config-if）#area 0 authentication message-digest
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What feature defines a campus area network？___
A. It has a single geographic location
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Which type of attack most commonly involves a direct attack on a network？___
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How do you verify TaCACS+ connectivity to a device？___
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When is the default deny all policy an exception in zone-based firewalls？___
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.If an access port is assigned as an isolated port in a PVLAN， which network ports can it communicate with？___
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