【判断题】
CRH2A统型动车组水位低于1/2时 加注雨刮水。（ ） .
A. 对
B. 错
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答案
B
解析
暂无解析
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【判断题】
CRH2A统型动车组警惕试验，等40秒，可以通过MON屏确认全列起紧急制动，MON屏警惕报警界 面中警惕报警与警惕制动显示异常。按下“无人警惕”按钮，确认蜂鸣器停止鸣响、报警灯灭。( ).
A. 对
B. 错
【判断题】
根据《南宁车辆段关于CRH2A、CRH380A统型动车组一级检修作业指导书增加部分检修项目的通知》，撒砂装置检查，喷嘴最低处距轨面高度符合限度要求42 －60mm;检查砂箱砂位，低于红色刻度线时需补砂。( ).
A. 对
B. 错
【判断题】
在检查维修制动系统、受电 弓、前罩开闭 机构、自动车钩及转向架空气弹簧等由压缩空气供给能量的系统时，要防止因空气压力变化而可能引起的意外，避免人身和设备伤害。 .
A. 对
B. 错
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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 ?___
A. dynamic source NAT that uses an IP ad dress as a mapped source
B. static destination NAT that uses a subnet as a real de stination
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D. static destination NAT that uses a subnet as a real source
【单选题】
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？___
A. CTA
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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
B. It establishes the preshared key for the firewall.
C. It establishes the preshared key for the Cisco ISE appliance
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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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C. Cisco NAC Agent
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【多选题】
Which three descriptions of RADIUS are true？ ___
A. It uses TCP as its transport protocol.
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C. It supports multiple transport protocols
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F. It separates authentication，authorization，and accounting
【多选题】
Which two configurations can prevent VLAN hopping attack from attackers at VLAN 10？___
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B. enabling BPDU guard on all access ports
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D. applying ACl between VLAN
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F. using switchport nonegotiate command on dynamic desirable ports
【多选题】
What are two features of transparent firewall mode ___
A. It conceals the presence of the firewall from attackers
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【多选题】
Which two models of A sa tend to be used in a data center？___
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Which two statements about hardware-based encrption are true？___
A. It is widely accessible
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In which two modes can the Cisco We b Security appliance be de ployed？___
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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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B. O.85~0.95
C. 1.05~1.15
D. 1.15~1.50
