Tips to Pass 352-001 Exam (21 to 30)

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Q21. You are designing a wireless LAN with the following components: 

High-density indoor access point deployment 

2.4-GHz and 5-GHz radios 

802.11a, 802.11g, and 802.11n mode wireless LAN clients 

Site survey results show negligible foreign WiFi and non-WiFi interference. What is the best method to decrease duty cycle (radio frequency utilization) and increase overall wireless LAN client performance for this design? 

A. Disable all data rates below 12 Mb/s on all access points. 

B. Decrease radio transmit power on all access points that report a high duty cycle. 

C. Increase radio transmit power on all access points that report a high duty cycle. 

D. Disable all data rates above 12 Mb/s on all access points. 

E. Increase radio transmit power on all access points. 

Answer: A 

Q22. A new video multicast application is deployed in the network. The application team wants to use the 239.0.0.1 multicast group to stream the video to users. They want to know if this choice will impact the existing multicast design. What impact will their choice have on the existing multicast design? 

A. Because 239.0.0.1 is a private multicast range, a flood of PIM packets that have to be processed by the CPU and hosts will be sent by the routers in the network. 

B. Because 239.0.0.1 is a private multicast range, the rendezvous point has to send out constant group updates that will have to be processed by the CPU and hosts. 

C. The multicast application sends too many packets into the network and the network infrastructure drops packets. 

D. The 239.0.0.1 group address maps to a system MAC address, and all multicast traffic will have to be sent to the CPU and flooded out all ports. 

Answer: D 

Q23. 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 

Q24. When creating a network design, which one of these options provides for basic Layer 2 client isolation to prevent broadcast traffic exposure? 

A. SVI 

B. VLAN 

C. routed port 

D. edge port 

Answer: B 

Q25. 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. 

Answer: BDF 

Q26. A company has these requirements for access to their wireless and wired corporate LANs using 802.1x: 

. Client devices that are corporate assets and have been joined to the Active 

Directory domain are allowed access. 

. Personal devices must not be allowed access. 

. Clients and access servers must be mutually authenticated. 

Which solution meets these requirements? 

A. Protected Extensible Authentication Protocol/Microsoft Challenge Handshake Authentication Protocol Version 2 with user authentication 

B. Extensible Authentication Protocol-Transport Layer Security with machine authentication 

C. Extensible Authentication Protocol-Transport Layer Security with user authentication 

D. Protected Extensible Authentication Protocol/Microsoft Challenge Handshake Authentication Protocol Version 2 with machine authentication 

Answer: B 

Q27. Your design client has requested that you ensure that the client devices are not dynamically configured with incorrect DNS information. When finalizing the network design, which security option must be configured on the switches? 

A. IGMP snooping 

B. DHCP snooping 

C. root guard 

D. DNS snooping 

Answer: B 

Q28. What is a key design aspect to be considered when designing an IP network that will be carrying real-time VoIP traffic? 

A. Minimizing total bidirectional end-to-end delay to 0-150 ms 

B. Minimizing total unidirectional end-to-end delay to 150-500 ms 

C. Minimizing total bidirectional end-to-end delay to 0-50 ms 

D. Minimizing total unidirectional end-to-end delay to 0-150 ms 

Answer: D 

Q29. You have been asked to establish a design that will allow your company to migrate from a WAN service to a Layer 3 VPN service. In your design, you are keeping some WAN links between critical sites as a backup for this service. You plan to use OSPF as your IGP and BGP for the PE-CE protocol. When the Layer 3 VPN service is available, how will you prevent transit traffic over the backup links? 

A. Redistribute routes at the CE as external type 1. 

B. Redistribute routes at the CE as external type 2. 

C. Use conditional advertisement only when the Layer 3 service is down. 

D. Manually turn off the backdoor link when the Layer 3 service is up. 

Answer: D 

Q30. AS100 and AS200 each have two peering points in different parts of their network. AS100 would like to use one of the links and keep the other link as backup. What should be changed for the design inside AS100 for prefixes received from AS200? 

A. MED 

B. weight 

C. AS-PATH 

D. local preference 

Answer: D