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NEW QUESTION 39 Refer to the exhibit. The full EIGRP routing table is advertised throughout the network. Currently, users experience data loss when any one link in the network fails. An architect optimizes the network to reduce the impact when a link fails. Which solution should the architect include in the design?

• A. Summarize the access layer networks from each access layer switch toward the aggregation layer
• B. Run BFD on the inter links between EIGRP neighbors.
• C. Reduce the default EIGRP hello interval and hold time

Answer: B   NEW QUESTION 40 When provisioning bandwidth for an IP telephony network, which elements are unique to an IP telephony call? (Choose two.)

• A. IGMP packets
• B. voice stream
• C. routing protocol packets
• D. call-control signaling
• E. speed of the segment to the telephone

Answer: B,D Explanation: Bandwidth provisioning for an IP telephony call consists of the voice stream traffic and the call control traffic. These elements are unique to an IP telephony call. The network infrastructure should be examined to see if the required bandwidth exists to support the voice and call-control applications. The sum of the bandwidth necessary for each major application, including voice, video, and data, should not exceed 75% of the total available bandwidth for each link. Voice traffic can be characterized as: Smooth Benign Drop sensitive Delay sensitive Voice packets are typically around 60 to 120 bytes in size. For good voice quality, packet loss should be less than 1 percent and delay should be no more than 150 ms. The IP telephony voice call-control procedures also generate traffic. The call control procedures are in the areas of call setup, maintenance, redirect, and tear down. There are special protocols such as H.323 and Media Gateway Control Protocol (MGCP) that handle these procedures. Voice applications are delay-sensitive. Speech is sampled by voice processors referred to as a codec (coder/ decoder). Then the digitized voice-sample outputs of the codecs are sent into the network towards the receiver at regular intervals in real-time transport protocol (RTP) packets. If these packets containing the voice samples are delayed for any reason behind other data traffic, the quality of the voice conversation suffers. The transportation of these voice applications in RTP packets through the IP network handled by H.323 protocols and devices is referred to as Voice over IP (or VoIP for short). The following are other network and design considerations besides bandwidth relating to IP telephony infrastructure support: Determine if the cabling plant can support the IP telephony equipment. Determine if the switch hardware can supply power to attached IP telephony equipment or if additional hardware is required. Ensure that infrastructure supports priority end-to-end VLANs and QoS networking. Internet Group Management Protocol (IGMP) is used for managing the membership of IP multicast groups and is not an element unique to an IP telephony call. Routing protocol packets (RIP, OSPF, and EIGRP) are used by routers to share routing information, and are not elements unique to an IP telephony call. The speed of the segment to the telephone is important to VoIP, but that is not an element unique to an IP telephony call. Objective: Layer 2 Technologies Sub-Objective: Configure and verify VLANs References: Cisco > Support > Technology Support > Voice > Telephony Signaling   NEW QUESTION 41 An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)

• A. bursting
• B. conforming
• C. shaping
• D. violating
• E. marking

Answer: C,E Explanation: Section: Network Services   NEW QUESTION 42 Drag and drop the model driven telemetry characteristics from the left onto the mode they belong to on the right. Answer: ** Explanation:   **NEW QUESTION 43 Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

• A. a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs
• B. a newOSPFarea for R1andR2connections,with R1 and R2as ABRs
• C. a newOSPFarea for R3andR4connections,with R5 and R6as ABRs
• D. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs
• E. a newOSPFarea for R3andR4connections,with R3 and R4as ABRs

Answer: C,D   NEW QUESTION 44 ...... P.S. Free 2022 Cisco 300-420 dumps are available on Google Drive shared by Actual4Labs: https://drive.google.com/open?id=1Taks-y42imWorvcC51n2m7M4hAGJZ1fQ