400-007 Free Practice Test

Which two advantages of using DWDM over traditional optical networks are true? (Choose two.)

1. A. inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation
2. B. ability to expand bandwidth over existing optical Infrastructure
3. C. inherent topology flexibility with built-in service protection
4. D. inherent topology flexibility with intelligent chromatic dispersion
5. E. inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol

Correct Answer: BC

Company XYZ wants to secure the data plane of their network. Which two technologies can be included in the security design? (Choose two)

1. A. DAI
2. B. IP Source Guard
3. C. BEEP
4. D. CPPr
5. E. MPP

Correct Answer: AB

Refer to the diagram.

Which solution must be used to send traffic from the foreign wireless LAN controller to the anchor wireless LAN controller?

1. A. Send packets from the foreign controller to the anchor controller via Layer 3 MPLS VPN or VRF-Lite
2. B. Send packets without encapsulation to the anchor controller over the routed network.
3. C. Encapsulate packets into an EoIP tunnel and send them to the anchor controller.
4. D. Send packets from the foreign controller to the anchor controller via IPinIP or IPsec tunnel.

Correct Answer: C

In search of a system capable of hosting, monitoring compiling. and testing code in an automated way, what can be recommended to the organization?

1. A. Jenkins
2. B. Ansible
3. C. Perl
4. D. Chef

Correct Answer: A

Company XYZ, a global content provider, owns data centers on different continents Their data center design involves a standard three-layer design with a Layer 3-only core VRRP is used as the FHRP They require VLAN extension across access switches in all data centers, and they plan to purchase a Layer 2 interconnection between two of their data centers in Europe in the absence of other business or technical constraints which termination point is optimal for the Layer 2 interconnection?

1. A. at the core layer, to offer the possibility to isolate STP domains
2. B. at the access layer because the STP root bridge does not need to align with the VRRP active node
3. C. at the core layer because all external connections must terminate there for security reasons
4. D. at the aggregation layer because it is the Layer 2 to Layer 3 demarcation point

Correct Answer: D