【单选题】
在无任何道岔动作时,电动转辙机电源对地电流不得大于___。
A. 0.5mA
B. 1mA
C. 1.5mA
D. 2mA
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答案
B
解析
暂无解析
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What are two reasons to recommend SNMPv 3 over SNMPv2?___
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How does the 802. 1x supplicant communicate with the authentication server?___
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Refer to the exhibit. what is the e ffect of the given configuration?___
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Which information can you display by executing the show crypto ipsec sa command?___
A. ISAKMP SAs that are established between two peers
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How can you prevent NAT rules from sending traffic to incorrect interfaces?___
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C.
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Which type of malicious software can create a back-door into a device or network?___
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【单选题】
Which security term refers to the like lihood that a weakness will be exploited to cause damage to an asset?___
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【单选题】
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What is an advantage of split tunneling ?___
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A. false negative
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【单选题】
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【单选题】
Which command enables authentication at the oSPFv2 routing process level?___
A. ip ospf authentication message-digest
B. area 0 authentication message-digest
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【单选题】
Which type of firewall monitors a nd protects a specific system?___
A. firewall
B. application firewall
C. stateless firewall wvp
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【单选题】
On an ASA, which maps are used to identify traffic?___
A. Route maps
B. Policy maps
C. Class maps
D. Service maps
【单选题】
Which type of social engineering attack targets top executives?___
A. whaling
B. vishin
C. spear phishing ng
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【单选题】
What is the minimum Cisco lOS version that supports zone-based firewalls?___
A. 12.1T
B. 15.1
C. 15.0
D. 124
【单选题】
In which type of attack does an attacker overwrite an entry in the CAM table to divert traffic destined to a legitimate host?___
A. DHCP spoofing
B. ARP spoofing
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【多选题】
Which two attack types can be prevented with the impleme ntation of a Cisco IPS solution?___
A. DDos
B. man-in-the-middle
C. worms
D. ARP spoofing
E. VLAN hopping
【多选题】
choose four___
A. DHCP snooping ——————————blocks DHCP messages
B. Dynamic ARP inspection——————verifies IP-to-MAC traffic on untrusted ports
C. IP sources guard ——————————provides layer 2 interface security with ports ACLs
D. Port security————————————mitigates MAC-address spoofing at the access interface