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Q41. A Server Provider is seeing an increasing amount of attacks against its customers. For which kind of attack would an engineer want to design a Backscatter Traceback solution? 

A. Rogue DNS/DHCP Servers 

B. IP Spoofing 

C. Ping of Death 

D. Distributed Denial of Service 

E. Network Attack TCP/UDP Scan 

Answer: B 

Explanation: Reference: http://www.cisco.com/web/about/security/intelligence/sp_infrastruct_scty.html 

http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_10-4/104_ip-spoofing.html 

Q42. How many bits are expressed by";:" in the address 2D01:DB::C:B7BA:130B? 

A. 16 bits 

B. 32 bits 

C. 40 bits 

D. 44 bits 

E. 48 bits 

F. 52 bits 

G. 56 bits 

H. 64 bits 

Answer: E

Q43. DRAG DROP 

Drag and drop the OAM protocol listed on the left to the correct standard on the right. Not all options will be used. 

Answer: 

Q44. DRAG DROP 

Drag and drop the MPLS operation listed on the left to the correct order of the operation on the right. 

Answer: 

Q45. Refer to the exhibit. The configuration in the exhibit redistributes static route 172.16.0.0/24 into BGP. Which action does the route-map STATIC-TO-BGP do? 

A. Route 172.16.0.0/24 cannot be sent to the Internet. 

B. Route 172.16.0.0/24 cannot be re-advertised beyond its neighbors. 

C. Route 172.16.0.0/24 cannot be advertised outside of AS 100. 

D. Route 172.16.0.0/24 cannot be exported from BGP to another protocol. 

Answer: C 

Q46. An engineer is working to provide high availability to a Service Provider core network. Which BGP command enables a backup path to be installed in the RIB and CEF tables? 

A. maximum-paths ibgp 

B. bgp additional-paths install 

C. maximum-paths eibgp 

D. bgp additional-paths select 

E. bgp advertise-best-external 

Answer: B 

Explanation: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3s/irg-xe-3s-book/bgp_best_external.html#GUID-66F31B75-B1E6-4B38-9B4D-6A89839930CE 

Q47. In a frame, the MPLS label is imposed where? 

A. Before the layer 2 header 

B. Within the Layer 3 header 

C. After the Layer3 header and before Layer2 header 

D. After the Layer2 header and before Layer3 header 

Answer: D 

Q48. Refer to the exhibit. R2 and R3 cannot install IS-IS IPv6 routes. What is the root cause? 

A. R2 is missing the metric-style wide command under the IS-IS process. 

B. R3 is missing the multi-topology transition command under the IS-IS address-family IPv6 process. 

C. R2 is missing the multi-topology command under the IS-IS address-family IPv6 process. 

D. R3 is missing the metric-style wide command under the IS-IS process. 

Answer: B 

Q49. Refer to the exhibit. 

Which VLAN interface does untagged traffic pass through? 

A. 1 

B. 2 

C. 3 

D. 4 

Answer: C 

Q50. DRAG DROP 

Drag and drop the subslot of the SIP-800 card that is used on Cisco CRS routers on the left to the correct PUM ASIC process on the right. 

Answer: