Secrets to cell block h 201-400

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2021 Aug ccie service provider exam code:

Q31. Refer to the exhibit. A web server is connected to a switch via two Gigabit Ethernet links. These two links are bundled into a single logical link that provides the aggregate bandwidth of 2 Gbps. The support engineer notices that traffic from the Internet to the web server uses both Gigabit Ethernet links. However, traffic from the web server to the Internet uses only one link. 

Which CLI command on the exhibit causes this behavior? 

A. lacp port-priority 32768 in interface configuration mode 

B. channel-group 5 mode passive 

C. lacp port-priority 32768 in global configuration mode 

D. port-channel load-balance dst-mac 

Answer: D 

Q32. Which are the three benefits of using the Yang model? (Choose three.) 

A. Reduce lab footprint 

B. Improve access to resources 

C. Support interoperability that provides a standard way to model management data 

D. Support simplified network management applications 

E. Provide a scale virtual lab environment 

F. Support programmatic interfaces 

Answer: C,D,F 

Explanation: https://tools.ietf.org/html/rfc6020#page-11 

Q33. A client has an MPLS inter-AS implementation that is required to have QoS deployed between ASBRs based on IP packet. At the same time, the client requires minimization of the routing configuration between ASBRs for better scalability. Which MPLS inter-AS option can achieve this goal? 

A. Option A 

B. Option B 

C. Option C 

D. Option AB 

Answer: D 

Q34. In a multi-VRF scenario using OSPF as PE-CE routing protocol, which Cisco IOS command allows the CE to accepts routes from PE inside of each VRF? 

A. router ospf <process id> vrf<vrf name> capability vrf-lite 

B. router ospf<process id> vrf<vrf name> domain-id <value> 

C. router ospf <process id> domain-id <value> 

D. router ospf <process id> capability vrf-lite 

Answer: A 

Q35. An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP configuration in the network? 

A. Enable LDP Fast Synch. 

B. Enable IP Fast Reroute. 

C. Enable the auto tunnel primary feature. 

D. Enable Cisco MPLS TE Fast Reroute. 

E. Enable the auto tunnel backup feature. 

Answer: B 

Explanation: 

http://www.cisco.com/en/US/docs/ios/12_0st/12_0st10/feature/guide/fastrout.html 

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Q36. Refer to the exhibit. A customer is running IS-IS within a network and is using BGP as a CE-PE routing protocol. Which action allows CE1 to get the subnet 10.10.2.0/24 over the CE1-PE1 link, regardless of whether there is a flap in the MPLS link or backdoor link? 

A. Configure the neighbor <PE1-IP>weight 33768 command on CE1 under the BGP process. 

B. Configure the distance bgp 115 200 200 command on CE1 under the BGP process. 

C. Configure the distance 30 ip command on CE1 under the IS-IS process. 

D. Configure the distance bgp 115 200 200 command on CE2 under the BGP process. 

E. Configure the neighbor <PE1-IP>weight 33768 command on CE2 under the BGP process. 

Answer: B 

Q37. DRAG DROP 

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

Answer: 

Q38. What are the four key design requirements for mobile IP backhaul? (Choose four.) 

A. X2 interface turning point 

B. bandwidth 

C. Layer 2 Tunneling 

D. native IPv6 support 

E. DiffServQoS 

F. MPLS-enabled interface 

G. network timing distribution and recovery 

H. mandatory Layer 3 access up to a cell site 

Answer: C,D,G,H 

Explanation: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_14-3/143_backhaul.html 

Q39. Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources? 

A. HVR 

B. SVR 

C. SDR 

D. DRP 

Answer: C 

Explanation: 

http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c11-512753_ns573_Networking_Solutions_White_Paper.html 

Q40. In which way does the DS-Lite IPv6 transitioning mechanism differ from IPv6 Dual-Stack? 

A. DS-Lite is a combination of tunnel and translation technologies. 

B. DS-Lite is a transition technology that gives full IPv6 connectivity for IPv6 capable hosts that are on the IPv4 Internet but have no native connection to an IPv6 network. 

C. DS-Lite is an automatic tunnel where the tunnel destination is determined by the IPv4 address extracted from the IPv6 address that starts with the prefix 2002::/16. 

D. DS-Lite is a stateless tunneling mechanism with a lightweight and secure manner without requiring upgrades to existing IPv4 access network infrastructure. 

Answer: A 

Explanation: http://www.cisco.com/c/en/us/products/collateral/service-provider/carrier-grade-ipv6-solution/white_paper_c11-558744-00.html