642-502 Exam
Securing Networks with Cisco Routers and Switches Exam(SNRS)
- 科目编号:642-502
- 科目名称:Securing Networks with Cisco Routers and Switches Exam(SNRS)
- 考题数目:62 Q&As
- 更新日期:2010-05-08
- 价 格 :
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Exam : Cisco 642-502
Title : Cisco(r) Securing Networks with Cisco Routers and Switches Exam(SNRS)
1. In a Cisco Identity-Based Networking Services (IBNS) implementation, the endpoint that is seeking network access is known as what?
A. host
B. authenticator
C. PC
D. authentication server
E. client
F. supplicant
Answer:F
2. In an 802.1x implementation, the authenticator acts as a gateway to which device?
A. host
B. authenticator
C. PC
D. authentication server
E. client
F. supplicant
Answer:D
3. Which three are typical Layer 2 attack mitigation techniques? (Choose three.)
A. switch security
B. port security
C. ARP snooping
D. DHCP snooping
E. port snooping
F. 802.1x authentication
Answer:BDF
4. In an 802.1x implementation, the supplicant directly connects to, and obtains network access permission through, which device?
A. host
B. authenticator
C. PC
D. authentication server
E. client
F. supplicant
Answer:B
5. Which Cisco Catalyst IOS command is used to mitigate a MAC spoofing attack?
A. switch(config-if)# port-security mac-address 0000.ffff.aaaa
B. switch(config)# switchport port-security mac-address 0000.ffff.aaaa
C. switch(config-if)# switchport port-security mac-address 0000.ffff.aaaa
D. switch(config)# port-security mac-address 0000.ffff.aaaa
E. switch(config-if)# mac-address 0000.ffff.aaaa
F. switch(config)# security mac-address 0000.ffff.aaaa
Answer:C
6. Which three keywords are used with the dot1x port-control command? (Choose three.)
A. enable
B. force-authorized
C. force-unauthorized
D. authorized
E. unauthorized
F. auto
Answer:BCF
7. Which two are typical Layer 2 attacks? (Choose two.)
A. MAC spoofing
B. CAM table overflow
C. route poisoning
D. DHCP Starvation
E. ARP Starvation
F. spam
Answer:AB
8. Which Cisco Catalyst IOS command can be used to mitigate a CAM table overflow attack?
A. switch(config-if)# port-security maximum 1
B. switch(config)# switchport port-security
C. switch(config-if)# port-security
D. switch(config-if)# switchport port-security maximum 1
E. switch(config-if)# switchport access
F. switch(config-if)# access maximum 1
Answer:D


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