Tactics to sitecom wl-352 v1 001 driver

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2021 Aug 352-001 questions:

Q51. You are the lead network designer hired by Service Provider XYZ to deploy CoS functionality on the core MPLS network (P routers). The goal of the network design is to provide a complete CoS solution to all customers that purchase services such as dedicated Internet access, MPLS L3VPN, and L2VPN (pseudowire). Service Provider XYZ has these design requirements: 

The network supports four service queues with equal treatment for delay, jitter, and packet loss. 

Queues are numbered 0-3, where 0 is the default queue. 

Three queues have one treatment. 

One queue has either one or two treatments. 

If your design includes eight CoS queues on the Service Provider XYZ MPLS PE router ingress (CE facing) interface, how will customer traffic be classified as it enters the MLS P routers? 

A. The eight CoS queues in the MPLS P router are remapped to the eight CoS queues. 

B. Traffic is classified on the MPLS PE routers on core facing interface. The DSCP value is mapped into EXP field where multiple EXP settings (2+) will be assigned to a single queue throughout the MPLS P routers. 

C. Discard the traffic from the eight CoS queues that does not match the four CoS queues of the MPLS P routers. 

D. The 8 CoS queues in the MPLS P router are remapped to four 4 flow-label queues. 

Answer: B 

Q52. A company would like to distribute a virtual machine (VM) hosting cluster between three data centers with the capability to move VMs between sites. The connectivity between data centers is IP only and the new design should use the existing WAN. Which Layer 2 tunneling technology do you recommend? 

A. VPLS 

B. L2TPv3 

C. OTV 

D. AToM 

Answer: C 

Q53. Refer to the exhibit. 

You are planning the design of an encrypted WAN. IP packets will be transferred over encrypted GRE tunnels between routers B and C. The packet size is limited to a maximum of 1500 bytes inside the WAN between routers B and C. If endpoint 1 tries to send 1500-byte IP packets to endpoint 2, in what three ways will the network design handle the fragmentation in three different possible network configurations? (Choose three.) 

A. When router B fragments packets after the encryption, router C must reassemble these fragmented packets. 

B. When router B fragments packets before the encryption, router C must reassemble these fragmented packets. 

C. When router B fragments packets after the encryption, the endpoint 2 must reassemble these fragmented packets. 

D. When router B fragments packets before the encryption, endpoint 2 must reassemble these fragmented packets. 

E. When router A fragments packets, router C must reassemble these fragmented packets. 

F. When router A fragments packets, endpoint 2 must reassemble these fragmented packets. 

Answer: ADF 

Q54. You are evaluating convergence characteristics of various interior gateway protocols for a new network design. Which technology allows link-state routing protocols to calculate paths to destination prefixes that are functionally similar to feasible successors in Enhanced Interior Gateway Routing Protocol? 

A. Incremental Shortest Path First 

B. Cisco Multiprotocol Label Switching Traffic Engineering Fast Reroute 

C. Loop-Free Alternate Fast Reroute 

D. partial route calculation 

E. Fast-Flooding 

Answer: C 

Q55. You are designing a network that will run EIGRP over a Metro Ethernet service that does not employ a link-loss technology. What will be the impact on convergence if there is a break in the end-to-end Layer 2 connectivity within the service provider network? 

A. The routers will immediately lose their adjacencies and converge. 

B. The routing protocol will not converge until the hold timers have expired. 

C. The switch ports connected to the router will go down and the routers will immediately converge. 

D. The VLAN on the switches will go inactive, the ports associated on the switch will go down, and the routers will immediately converge. 

Answer: B 

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Q56. The Customer X network consists of an MPLS core, IS-IS running as IGP, a pair of BGP route reflectors for route propagation, and a few dozens of MPLS-TE tunnels for specific tactical traffic engineering requirements. The customer engineering department has some questions about the use of the Overload Bit in the IS-IS networks and how it could be used to improve their current network design. Which three options about the Overload Bit are true? (Choose three.) 

A. It is not recommended on BGP route reflectors. 

B. It only affects the use of the respective node as a transit node, and networks advertised within the LSPs of the node are still reachable. 

C. It can be set on a router during the startup process for a fixed period of time. 

D. It forces the midpoint MPLS-TE node to reoptimize the primary tunnels going through the OL node. 

E. It can be set on a router until other interacting protocols have signaled convergence. 

Answer: BCE 

Q57. You are designing a network for a branch office. In order to improve convergence time, you are required to use the BFD feature. Which four routing protocols can you use to facilitate this? (Choose four.) 

A. EIGRP 

B. IS-IS 

C. BGP 

D. static 

E. RIP 

Answer: ABCD 

Q58. You have been tasked to create a Layer 2 network design that uses vPC to provide resiliency and avoid loops. vPC removes Layer 2 loops while providing redundancy through which mechanism? 

A. dual-active detection 

B. address synchronization 

C. strict forwarding rules 

D. Bridge Assurance 

Answer: C 

Q59. A network designer is redesigning an enterprise campus network to ensure that Ethernet switches proactively attempt to reconnect after a fiber cut. In the design, they will have to address areas where fiber cuts exist on campus from past troubleshooting, where a single fiber is disconnected in the fiber pair, leading to looping. Which feature could be implemented in the design to allow the Spanning Tree Protocol on the switches to be protected? 

A. loop guard 

B. UniDirectional Link Detection 

C. UniDirectional Link Detection aggressive mode 

D. root guard 

Answer: C 

Q60. You are designing an IPv4 any source multicast redundancy solution. Which technology ensures the quickest RP convergence? 

A. Auto-RP 

B. Embedded RP 

C. bootstrap router 

D. MSDP anycast RP 

Answer: D