【判断题】
CO2 气体保护焊是一种用 CO2液体作为保护熔化极的电弧焊方法
A. 对
B. 错
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答案
B
解析
暂无解析
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【判断题】
氧化焰是指当氧气与乙炔的混合比大于 1.2时，燃烧过后的气体仍有过剩的氧气，焰心短而尖，内焰区氧化反应剧烈，火焰挺直发出“嘶嘶”声，温度可达 2100℃～2300℃
A. 对
B. 错
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What is the best definition of hairpinning？___
A. ingress traffic that traverses the outbound interface on a device
B. traffic that enters one interface on a device and that exits through another interface
C. traffic that enters and exits a device through the same interface
D. traffic that tunnels through a device interface
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Which SNMPv3 security level provides authentication using HMAC with MD5， but does not use encryption？___
A. authPriv
B. authNo Priv
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You have implemented a dynamic blacklist， using security intelligence to block illicit network activity. However， the blacklist contains several approved connections that users must access for usiness pur poses. Which action can you take to retain the blacklist while allowing users to access the approve d sites？___
A. Create a whitelist and manually add the approved addresses.
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【单选题】
When connecting to an external resource,you must change a source IP address to use one IP address from a range of 207.165.201.1 to 207.165.1.30. Which option do you implement ?___
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Refer to the exhibit. 【nat（ins，any）dynamic interface】Which ty pe of NaT is configured on a Cisco ASA？___
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【单选题】
Which mitigation technology for web-based threats prevents the removal of confidential data from the network？___
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【单选题】
Refer to the exhibit. What is the effect of the given configuration？___
A. It establishes the preshared key for the switch
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【多选题】
What are two major considerations when choosing between a SPAN and a TAP when plementing IPS？___
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What are two direct-to-tower methods for redirecting web traffic to Cisco Cloud Web Security？___
A. third-party proxies
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【多选题】
Which three descriptions of RADIUS are true？ ___
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【多选题】
Which two configurations can prevent VLAN hopping attack from attackers at VLAN 10？___
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【多选题】
What are two features of transparent firewall mode ___
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Which two models of A sa tend to be used in a data center？___
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24．对于工作环境恶劣、启动频繁的异步电动机，所用热继电器热元件的额定电流可选为电动机额定电流的___倍。
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