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Cisco EXAM 642-874
Designing Cisco Network Service Architectures

Total Questions:

270

Question: 1
Which of these Layer 2 access designs does not support VLAN extensions? A. FlexLinks B. loop-free U C. looped square D. looped triangle

Answer: B Question: 2
As a critical part of the design for the Enterprise Campus network, which of the following two are true concerning intrusiondetection and prevention solution? (Choose two) A. IDS is capable of both inline and promiscuous monitoring, while IPS is only capable of promiscuous monitoring B. IDS will stop malicious traffic from reaching its intended target for certain types of attacks. C. IPS processes information on Layer 3 and 4 as well as analyzing the contents and payload of the packets for more sophisticated embeddedattacks (Layers 3 to 7) D. IPS inspects traffic statefully and needs to see both sides of the connection to function properly E. IDS placement at the perimeter of Data Center outside the firewall generates many warnings that have relatively low value because no action is likely to be taken on this information

Answer: C,E Question: 3 DRAG DROP
Drag the characteristic on the left to thecorresponding IPSec VPN solution on the right.

Answer:

Question: 4
OSPF stub areas are an important tool for the Network designer; which of the following two should be considered when utilizing OSPF stub areas? A. OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAs B. OSPF not so stubby areas are particularly useful as a simpler form of summarization C. OSPF stubareas are always insulated from external changes D. OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPF domain E. OSPF totally stubby cannot distinguish among ABRs for the best route to destinations outside the areas

Answer: B,E

Question: 5
Which two statements are correct regarding Flex Links? (Choose two) A. An interface can belong to multiple FlexLinks. B. Flex Links operate only over single pairs of links. C. Flex Link pairs must be of the same interface type D. Flex Links automatically disable STP so no BPDUs are propagated E. Failover from active to standby on Flex Links takes less than a second

Answer: B,D Question: 6
Which of these technologies is characterized as being a multipoint Layer 2 VPN that connects two or more customerdevices using Ethernet bridging techniques? A. DPT B. MPLS C. VPLS D. CWDM E. DWDM F. SONET/SDH

Answer: C Question: 7
DRAG DROP Drag the best practice recommendation for an Enterprise Campus network on the left to the technology to which it most applies on the right.

Answer:

Question: 8
Why is STP required when VLANs span access layer switches? A. to ensure a loop-free topology B. toprotect against user-side loops C. in order to support business applications D. because of the risk of lost connectivity without STP E. for the most deterministic and highly available network topology

Answer: B

Question: 9
When designing the IP routing for the Enterprise Campus network, which of these following two iBGB considerations should be taken into account? A. iBGB dual horning withdifferent iSPs puts the Enterprise at the risk of becoming a transit network B. iBGP requires a full mesh of eBGP peers C. Routers will not advertise iBGP learned routers to other iBGP peers. D. The use of route reflections or Confederation eliminate any full mesh requirement while helping to scale iBGP E. iGBP peers do not add any information to the AS path

Answer: A,D Question: 10
Whichvirtualization technology allows multiple physical devices to be combined into a single logical device? A. device visualization B. device clustering C. server visualization D. network visualization

Answer: B Question: 11
Which two of these are characteristics of MPLS VPNs? (Choose two) A. Layer 3 MPLS VPNs can forward only IP packets B. Layer 2 MPLS VPNs can forward any network protocol C. MPL S...