642-524 Exam Guide
642-524 Practice Questions
642-524 Practice Questions
642-524 Exam: first-choosed braindumps
Language:English
Exam Number/Code: 642-524
Exam Name : Securing Networks with ASA Foundation
Vendor: Cisco
Associated CertificationsSecurity-Specialist-Certification
Questions and Answers : 158 Questions&Answers
Latest Update Time: 20-07-2010
642-524 exam is Cisco's Composite Exam official code. Certkey experts collected 158 Q&As questions and answers for candidates' preparation. In the 642-524 exam resources, candidates will cover every field and category in Cisco certifications helping to ready candidates for a successful Cisco Certification.
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Question 1:
Which bridge ID belongs to SW-A?
A. 32928 000d bd33 029b
B. 24623 000f 34f5 039b
C. 32928 000d bd03 029b
D. 32768 000d bd33 029b
E. 32769 000d 65db 01dd
F. 32815 000d bd03 029b
Answer:E
Explanation:
We see that in VLAN 1 and VLAN 160 that fa0/1 is the root port on SW-C. As previously discussed we know that root ports point to the root bridge and assuming equal cost from switch to root and the fact that no other port is root for either VLAN that SW-A is the Root Bridge and we can gleen the information for the exhibit which list the Bridges VLAN.
Question 2:
The Certkiller EIGRP network is utilizing the EIGRP stub routing feature. Which of the following are key concepts that apply when configuring the EIGRP stub routing feature in a hub and spoke network? (Select three)
A. A hub router prevents routes from being advertised to the remote router.
B. Only remote routers are configured as stubs.
C. Stub routers are not queried for routes.
D. Spoke routers connected to hub routers answer the route queries for the stub router.
E. A stub router should have only EIGRP hub routers as neighbors.
F. EIGRP stub routing should be used on hub routers only.
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Answer: B, C, E
Explanation:
The Enhanced Interior Gateway Routing Protocol (EIGRP) Stub Routing feature improves network stability, reduces resource utilization, and simplifies stub router configuration.Stub routing is commonly used in a hub and spoke network topology. In a hub and spoke network, one or more end (stub) networks are connected to a remote router (the spoke) that is connected to one or more distribution routers (the hub). The remote router is adjacent only to one or more distribution routers. The only route for IP traffic to follow into the remote router is through a distribution router. This type of configuration is
commonly used in WAN topologies where the distribution router is directly connected to a WAN. The distribution router can be connected to many more remote routers. Often,the distribution router will be connected to 100 or more remote routers. In a hub and 642-892 spoke topology, the remote router must forward all nonlocal traffic to a distribution router, so it becomes unnecessary for the remote router to hold a complete routing table.Generally, the distribution router need not send anything more than a default route to the remote router.When using the EIGRP Stub Routing feature, you need to configure the distribution and remote routers to use EIGRP, and to configure only the remote router as a stub. Only specified routes are propagated from the remote (stub) router. The router responds to queries for summaries, connected routes, redistributed static routes, external routes, and internal routes with the message inaccessible. A router that is configured as a stub will send a special peer information packet to all neighboring routers to report its status as a stub This feature should only be used on stub routers. A stub router is defined as a router connected to the network core or distribution layer through which core transit traffic should not flow. A stub router should not have any EIGRP neighbors other than
distribution routers. Ignoring this restriction will cause undesirable behavior.
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