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【单选题】
晶体三极管极性的结构有PNP型和___
A. NPN型
B. NNP型
C. PPN型
D. NPP型
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用万用表测得二极管正、反向电阻都为无穷大,表明该二极管___
A. 短路
B. 断路
C. 性能不好
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将电容器两端线分别与万用表选大电阻挡位时两表笔相连来检查电容,若表针摆动一角度后,慢慢复位,说明该电容___
A. 短路
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拆卸蓄电池,宜___
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在一定外界压力下,液体只能在一定的温度下___
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绝对压力是指设备内部或某处真实压力,等于表压力与当地大气压力___
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hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture?___
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.Which three statements de scribe DHCP spoofing attacks?___
A. They can modify traffic in transit.
B. They are used to perform man- in-the-middle attacks
C. They use ARP poisoning
D. They can access most network devices
E. They protect the ide ntity of the attacker by masking the DHCP address.
F. They are can physically modify the network gateway.
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Which statement about the communication between interfaces on the same security level is true?___
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【多选题】
In which two situations should you use in band management? ___
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.Which loS command do you enter to test authentication again a AAA server?___
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D. aaa authentication enable default test group tacases
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Which two statements about the self zone on a cisco Xone based policy firewall are true?___
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【多选题】
Which type of attack can exploit design flaws in the implementation of an application without ?___
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What is the highest security level that can be configured for an interface on an ASA?___
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【单选题】
How does a zone pair handle traffic if the policy de fination of the zone pair is missing?___
A. It inspects all traffic.
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【单选题】
default how does a zone based firewall handle traffic to add from the self zone?___
A. It permits all traffic without inspection
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【单选题】
Which command should beused to ena ble AAA Authentication to determine if a user can access the privilege command level?___
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【单选题】
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【单选题】
Which protocol offers data Integrity encryption, authentication, and anti-replay functions for IPSec VPN?___
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【单选题】
Which component offers a variety of security Solution, including firwall, IF Antivirus and antiphishing features?___
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【单选题】
Refer to the exhibit, A Network Secur ity administrator check the ASa firewall NAT policy table rith show nat command, which statement is fails?___
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【单选题】
What is true of an aSa in transparent mode ?___
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【单选题】
What is the effect of the ip scp server enable command?___
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【单选题】
How can you mitigate attacks in which the attacker attaches more than one vLan tag to a packet?___
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D.
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【单选题】
Which technology can you implement to centrally mitigate potential threats when users on your network download files that might be malicious?___
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C. Verity that antivirus software is installed and up to date for all users on your network
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