100% 高得点合格保証300-415無制限551解答で[2026]
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質問 # 177
How do receivers request to join multicast streams in a Cisco SD-WAN network?
- A. Multicast service routes with the vSmart controller.
- B. IGMP membership reports directly with a multicast router.
- C. IGMP membership reports directly with the vBond orchestrator.
- D. PIM messages with the nearest neighboring multicast router.
正解：B
質問 # 178 
Refer to the exhibit. An administrator is configuring a policy in addition to an existing hub-and-spoke policy for two sites that should directly communicate with each other. How is this policy configured?
- A. custom control (route and TLOC)
- B. mesh
- C. import existing topology
- D. hub-and-spoke
正解：A
解説：
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/policies/vedge/policies-book/controlpolicies.html#id_107219
質問 # 179
Which configuration changes the packet loss priority from low to highly?
- A.
- B.
- C.
- D.
正解：D
解説：
Explanation
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/qos/vEdge-20-x/qos-book/forwarding-qos.ht
質問 # 180
How is multicast routing enabled on devices in the Cisco SD-WAN overlay network?
- A. The WAN Edge routers originate multicast service routes to the vSmart controller via OMP. which then forwards joins for requested multicast groups based on iGMP v2 or v3 toward the source or PIM-RP as specified in the original PIM join message
- B. The vSmart controller originates multicast service routes to the WAN Edge routers via OMP, which then forwards joins (or requested multicast groups based on IGMP v2 or v3 toward the source or PIM-RP as specified in the original PIM join message
- C. The vSmart controller originates multicast service routes to the WAN Edge routers via OMP, which then forwards joins for requested multicast groups cased on IGMP v1 or v2 toward the source or PlM-RP as specified m the original PIM join message
- D. The WAN Edge routers originate multicast service routes to the vSmart controller via OMP, which then forwards joins for requested multicast groups based on IGMP v1 or v2 toward the source or PIM-RP as specified m the original PIM join message.
正解：D
解説：
Explanation
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/routing/ios-xe-17/routing-book-xe/m-multica
質問 # 181
A customer must upgrade the cisco SD-WAN devices and controllers from version 19.2 to version 20.3. The devices include WAN Edge cloud, vManage, vSmart, and vBond. Which types of image types of image files are needed for this upgrade?
- A. one file for vManaga and one file for all other devices with extension .bin
- B. one file for vManage, one for vSmart and one for vBond + WAN Edge Cloud with extension.bin
- C. one file for vManaga, one for vSmart and one for vBond + WAN Edge Cloud with extension tar.gz
- D. one file for vManage and one file for all other devices with extension tar.gz
正解：C
解説：
Explanation
https://software.cisco.com/download/home/286320995/type/286321394/release/20.3.3.1
質問 # 182
How does the Cisco SD-WAN architecture differ from traditional WAN technologies? (Choose three.)
- A. Topology dependence
- B. Distributed architecture
- C. Reduced uptime in branch locations
- D. Single pane of glass
- E. Increased scale with centralized control plane
正解：B、D、E
質問 # 183
Drag and drop the policies from the left onto the correct policy types on the right.
正解：
解説：
質問 # 184
Which topology type is supported in each noncore region in a Cisco SD-WAN Multi-Region fabric environment with three or more regions?
- A. full mesh and partial mesh
- B. any topology type
- C. hub and spoke
- D. full mesh
正解：B
解説：
Multi-Region Fabric provides the flexibility to use different network topologies in different regions.
For example, region 1 can use a full mesh of Cisco Catalyst SD-WAN tunnels, while region 2 can use a hub-and-spoke topology, and Region3 can use a full mesh topology with dynamic tunnels.
We recommend using a full mesh of tunnels for the overlay topology of the core region (region 0).
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/hierarchical- sdwan/hierarchical-sdwan-guide/h-sd-wan-basics.html
質問 # 185
Which protocol is used to propagate multicast join requests over the Cisco SD-WAN fabric?
- A. OMP
- B. ARP
- C. Auto-RP
- D. IGMP
正解：D
解説：
Cisco SD-WAN overlay multicast routing supports the Internet Group Management Protocol (IGMP) version 2 (defined in RFC 2236). Cisco vEdge devices use IGMP to process receiver membership reports for the hosts in a particular VPN and to determine, for a given group, whether multicast traffic should be forwarded and state should be maintained. vEdge routers listen for both IGMPv1 and IGMPv2 group membership reports.
質問 # 186
Which SD-WAN device offers native support for the maximum bandwidth provided by a Tier 3 license without additional modules?
- A. C8200L-1N-4T
- B. Cisco 4451
- C. ISR 1100-6G
- D. C8300-2N2S-4T2X
正解：D
質問 # 187
What is a benefit of the application aware firewall feature in the Cisco SD-WAN solution?
- A. application malware protection
- B. application monitoring
- C. control policy enforcement
- D. application visibility
正解：D
解説：
質問 # 188
Which component is responsible for routing protocols such as BGP and OSPF in a Cisco SD- WAN solution?
- A. vSmart Controller
- B. WAN Edge Router
- C. vBond Orchestrator
- D. vManage
正解：B
解説：
WAN Edge router - This router is responsible for running routing protocols, such as BGP and OSPF, to exchange routing information and make intelligent routing decisions. This enables efficient data forwarding within the SD-WAN network.
質問 # 189
Which command disables the logging of syslog messages to the local disk?
- A. no system logging disk local
- B. no system logging disk enable
- C. system logging server remote
- D. system logging disk disable
正解：D
質問 # 190
Which two algorithms authenticate a user when configuring SNMPv3 monitoring on a WAN Edge router?
(Choose two.)
- A. AES-256
- B. MD5
- C. AES-128
- D. SHA-2
- E. SHA-1
正解：A、E
解説：
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/snmp/snmp-book.html
質問 # 191
An engineer is adding a tenant with location ID 306432373 in vManage. What is the maximum number of alphanumeric characters that are accepted in the tenant name field?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
質問 # 192
Refer to the exhibit.
What does the BFD value of 8 represent?
- A. hello timer of BFD session
- B. dead timer of BFD session
- C. number of BFD sessions
- D. poll-interval of BFD session.
正解：C
質問 # 193
Drag and Drop Question
Drag and drop the alarm states from the left onto the corresponding alarm descriptions on the right.
正解：
解説：
質問 # 194
Refer to the exhibit.
Which shaping-rate does the engineer use to shape traffic at 9 Mbps?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-cr-book/config-cmd.html#wp421715213
質問 # 195
In which VPN is the NAT operation on an outgoing interface configured for direct Internet access?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
質問 # 196
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