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2021 Apr 352-001 torrent
Q1. 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.
How would you design your solution to map the DSCP value properly so that the traffic is assigned to the respective queues in the Service Provider XYZ MPLS core network?
A. Classify traffic according to DSCP value into appropriate P router queues.
B. Map the appropriate DSCP value into the EXP field based on the number of queues in the MPLS P routers.
C. Map the appropriate DSCP value into the EXP field based on the number of queues in the MPLS PE routers.
D. Based on the DSCP value, traffic is mapped automatically into appropriate queues in the MPLS CE routers.
Q2. Your company is designing a service provider network management solution in which customers are billed for 95th percentile network utilization. The service provider requires that an IETF standard be utilized to collect the data. Which method should be used to collect the data?
Q3. A large enterprise customer is migrating thousands of retail offices from legacy TDM circuits to an Ethernet-based service. The network is running OSPF and has been stable for many years. It is now possible to backhaul the circuits directly to the data centers, bypassing the regional aggregation routers. Which two networking issues need to be addressed to ensure stability with the new design? (Choose two.)
A. Nothing will change if the number of offices is the same.
B. Nothing will change if the number of physical interfaces stays the same.
C. The RIB will increase significantly.
D. The FIB will increase significantly.
E. The amount of LSA flooding will increase significantly.
F. The size of the link-state database will increase significantly.
Q4. In order to meet your service level agreement, your network designer created a design solution that includes interface dampening. In which two ways will interface dampening benefit your overall network design? (Choose two.)
A. Interface dampening uses an exponential backoff algorithm to suppress event reporting to the upper-level protocols.
B. When the interface is dampened, further link events are not reported to the upper protocol modules.
C. When the interface is dampened, further link events are reported to the upper protocol module.
D. Periodic interface flapping that affects the routing system as a whole should have a period shorter than the system convergence time.
Q5. Refer to the exhibit.
Your company designed a network to allow server VLANs in a data center to span all access switches. In the design, Layer 3 VLAN interfaces and HSRP are configured on the aggregation switches. In which three ways should the design of the STP domain be optimized for server and application performance? (Choose three.)
A. Use loop guard on access ports.
B. Use PortFast on access ports.
C. Use root guard on access ports.
D. Align Layer 2 and Layer 3 forwarding paths.
E. Use BPDU Skew Detection on access ports.
F. Explicitly determine root and backup root bridges.
Q6. Which three techniques can be used to improve fault isolation in an enterprise network design? (Choose three.)
A. aggregate routing information on an OSPF ABR
B. fully meshed distribution layer
C. Equal-Cost Multipath routing
D. EIGRP query boundaries
E. multiple IS-IS flooding domains
F. tuned Spanning Tree Protocol timers
Q7. What is a key benefit of a layered network design?
A. cost savings
B. increased security
C. increased flexibility
D. decreased broadcast
Q8. Which of the following design options meet the requirement to provide IPv6 interdomain multicast?
B. PIM SSM
D. PIM dense mode
Q9. Refer to the exhibit.
This new OSPF network has four areas, but the hub-and-spoke area experiences frequent flapping. You must fix this design failure. Which two mechanisms can you use to isolate the data center area from the hub-and-spoke area without losing IP connectivity? (Choose two.)
A. Make the DC area totally stub.
B. Make the DC area an NSSA.
C. Convert the DC area to EIGRP protocol.
D. Deploy a prefix summarization on router D.
E. Use OSPF distribute-list filtering on router A.
Q10. You are working on a network design plan for a company with approximately 2000 sites. The sites will be connected using the public Internet. You plan to use private IP addressing in the network design, which will be routed without NAT through an encrypted WAN network. Some sites will be connected to the Internet with dynamic public IP addresses, and these addresses may change occasionally. Which VPN solution will support these design requirements?
A. GET VPN must be used, because DMVPN does not scale to 2000 sites.
B. DMVPN must be used, because GET VPN does not scale to 2000 sites.
C. GET VPN must be used, because private IP addresses cannot be transferred with DMVPN through the public Internet.
D. DMVPN must be used, because private IP addresses cannot be transferred with GET VPN through the public Internet.
E. GET VPN must be used, because DMVPN does not support dynamic IP addresses for some sites.
F. DMVPN must be used, because GET VPN does not support dynamic IP addresses for some sites.