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NEW QUESTION # 57
Referring to the exhibit, how many broadcast domains will an Ethernet frame pass through when traversing the IP fabric from Server A to Server B?
Answer: D
Explanation:
Referring to the exhibit, the image shows a simplified diagram of an IP fabric network connecting two servers, labeled as Server A and Server B. The IP fabric is a network architecture that uses a Clos topology to provide high bandwidth, low latency, and scalability for data center networks.
The IP fabric consists of spine and leaf devices that use BGP as the routing protocol and VXLAN as the overlay technology.
A broadcast domain is a logical portion of a network where any device can directly transmit broadcast frames to other devices at the data link layer (OSI Layer 2). A broadcast frame is a frame that has a destination MAC address of all ones (FF:FF:FF:FF:FF:FF), which means that it is intended for all devices in the same broadcast domain. A broadcast domain is usually bounded by a router, which does not forward broadcast frames to other networks.
In the exhibit, there are two broadcast domains that an Ethernet frame will pass through when traversing the IP fabric from Server A to Server B. The first broadcast domain is the one that contains Server A and the leaf device that it is connected to. The second broadcast domain is the one that contains Server B and the leaf device that it is connected to. The IP fabric itself is not a broadcast domain, because it uses IP routing and VXLAN encapsulation to transport the Ethernet frames over the Layer 3 network.
NEW QUESTION # 58
What does EVPN use lo identity which remote leaf device advertised the EVPN route?
Answer: A
Explanation:
EVPN uses a route distinguisher (RD) value to identify which remote leaf device advertised the EVPN route. An RD is a 64-bit value that is prepended to the EVPN NLRI to create a unique VPNv4 or VPNv6 prefix. The RD value is usually derived from the IP address of the PE that originates the EVPN route. By comparing the RD values of different EVPN routes, a PE can determine which remote PE advertised the route and which VRF the route belongs to.
NEW QUESTION # 59
Using the Juniper Apstra multitenancy capabilities, which approach will allow a tenant to interconnect two different routing zones?
Answer: B
Explanation:
A routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone. For virtual networks with Layer 3 SVI, the SVI is associated with a Virtual Routing and Forwarding (VRF) instance for each routing zone isolating the virtual network SVI from other virtual network SVIs in other routing zones. If you're using multiple routing zones, external system connections must be from leaf switches in the fabric. Routing between routing zones must be accomplished with external systems.
NEW QUESTION # 60
What are two types of policies that Juniper Apstra uses to push to switches using Security Policies? (Choose two.)
Answer: A,D
Explanation:
Apstra 5.1 Security Policies are intended to enforce permit/deny controls for traffic between defined endpoints such as routing zones, virtual networks, and IP endpoints. Apstra expresses this security intent in an implementation-independent way, then renders and deploys the equivalent enforcement configuration onto the appropriate devices and interfaces. In Apstra terminology, the outcome is an ACL applied at enforcement points, such as virtual network interfaces (SVIs/IRBs) for east-west controls and border leaf interfaces for external-to-internal controls.
Therefore, the two correct policy types in this context are access control lists (ACLs) and firewall filters. "ACL" is the abstract policy object Apstra compiles and applies, while on Junos v24.4 the concrete enforcement mechanism for stateless packet filtering on interfaces is typically implemented as a firewall filter. Apstra automatically places these rendered ACLs/filters where needed: when you add VXLAN endpoints (such as expanding a rack/leaf in a VN), the ACL is placed on the corresponding VN interface; when you add external connectivity points, relevant ACLs are placed on the border leaf enforcement points. This automation ensures that security intent remains consistent as the fabric scales or changes, reducing the risk of manual rule drift. In contrast, filter-based forwarding / policy-based routing changes forwarding decisions rather than expressing permit/deny security intent, and is not the primary mechanism used by Apstra Security Policies for reachability control.
NEW QUESTION # 61
What is one indicator in the Apstra UI that implies that changes to a blueprint are ready to be committed?
Answer: D
NEW QUESTION # 62
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