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| Section | Objectives |
|---|---|
| Operations and Assurance | - Fault, configuration, and performance management - Telemetry and monitoring in service provider networks |
| Automation and Orchestration | - Service orchestration workflows - Cisco NSO basics and service modeling |
| NFV and Virtualized Network Functions | - VNF lifecycle management - NFV architecture and components |
| Infrastructure and Cloud Integration | - Data center and cloud interconnect - Hybrid cloud integration for service providers |
| Cloud Infrastructure Concepts | - Virtualization fundamentals (compute, network, storage) - Service provider cloud architecture principles |
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NEW QUESTION # 50
Which type of cyberattack does Cisco Umbrella DNS-layer security effectively help mitigate?
Answer: D
Explanation:
Cisco Umbrella DNS-layer security:
* Blocks malicious domains used inphishing,malware,C2 communications, andransomware
* Stops threatsbeforeconnections are made
* Uses DNS-based filtering and threat intelligence
It doesnotmitigate:
* DDoS (needs scrubbing centers)
* Brute force login attempts
* Zero-day exploits directly
Thus,Ais correct.
NEW QUESTION # 51 
Refer to the exhibit. An engineer is troubleshooting an issue where Cisco switch Switch_A fails to establish OTV connectivity to Cisco switch Switch_C. What is the cause of the issue?
Answer: A
Explanation:
In Cisco Overlay Transport Virtualization (OTV), thejoin interfaceis the Layer 3 interface that connects the edge device to thetransport network(the routed core / WAN) where multicast groups (control, data, broadcast) are reachable.
From the topology:
* Interfaceg1/0on Switch_A is connected to the routed 20.20.20.0/30 link toward Switch_C (the transport
/ WAN).
* Interfaceg1/1is a trunk toward Switch_B and carries extended VLANs (101, 111), so it belongs to the internal site-facing side, not the transport.
In the show otv output, the join interface is incorrectly configured asg1/1 (20.20.20.2), which is an internal trunk and not the correct routed interface to the OTV transport network. Because the join interface does not face the multicast-enabled transport, OTV cannot establish adjacency and the VPN state remains DOWN.
Correct configuration should use:
otv join-interface GigabitEthernet1/0
Options A and C about group addresses are not the issue; addresses shown (224.x for control/broadcast and
232.x for data group range) are valid multicast ranges. Option D (e1/1) is also an internal access/trunk interface and not the WAN transport interface.
NEW QUESTION # 52
Virtual Machines and Containers are both used to virtualize resources.
Which statement is true?
Answer: B
NEW QUESTION # 53
Which KPI is essential in the VIM control plane for network assurance?
Answer: D
NEW QUESTION # 54
RTBH is effective in mitigating what kind of traffic?
Answer: A
NEW QUESTION # 55
......
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