BGP and External Networking Questions
Practice questions for BGP and External Networking topic in Cilium Certified Associate. 18 questions covering this domain.
What is the main role of Cilium BGP Control Plane?
What does LB IPAM do in Cilium?
A BGP peer session is up, but no prefixes are being advertised. Which explanation matches the Cilium docs?
An operator wants to peer Cilium with an upstream BGP router to advertise pod CIDR routes. Which Kubernetes custom resource does the operator configur...
A platform team uses Cilium's Egress Gateway feature to ensure that all outbound traffic from a specific set of pods always exits the cluster through ...
A network team wants to use Cilium's L2 Announcements feature to make LoadBalancer Service IPs reachable on a flat Layer 2 network without BGP. Which ...
Which loadBalancerClass should a Service use to select Cilium Node IPAM LB?
Why do the L2 Announcements docs warn against using a Service with externalTrafficPolicy set to Local?
A cluster runs Cilium in IPv6-only mode. What can the BGP Control Plane advertise?
A Service uses Cilium Node IPAM LB. The chosen nodes do not have ExternalIP addresses configured. Which addresses will Node IPAM advertise instead?
Which loadBalancerClass must a Service use to opt into Cilium Node IPAM LoadBalancer behavior?
An administrator creates two CiliumLoadBalancerIPPools with overlapping CIDRs. What happens according to the LB IPAM docs?
A Cilium cluster advertises pod CIDR 10.0.0.0/16 via BGP Control Plane to a router. After adding a second cluster with overlapping CIDR 10.0.0.0/16 co...
In Cilium's L2 Announcements feature, which protocol is used to announce LoadBalancer Service IPs on a flat Layer 2 network?
When using Cilium's BGP Control Plane to advertise pod CIDRs to an upstream router, which of the following must be configured in the CiliumBGPPeeringP...
A Cilium cluster advertises pod routes to an external BGP router. If a pod's IP is reassigned (e.g., the pod is rescheduled to a new node with a diffe...
When running Cilium on a cluster with multiple subnets (e.g., east and west data centers), can each subnet run a separate BGP Control Plane instance w...
In Cilium's BGP Control Plane, which Kubernetes object type specifies the BGP peer address, ASN (Autonomous System Number), and the nodes that should ...
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