F5 BIG-IP Administration Data Plane Concepts (F5CAB2) Certification Sample Questions

01. Which statement best distinguishes a tagged VLAN assignment from an untagged VLAN assignment on a BIG-IP interface?
a) Tagged interfaces cannot carry a VLAN ID, while untagged interfaces always carry one
b) Tagged interfaces can belong to multiple VLANs, while untagged interfaces belong to a single VLAN
c) Tagged interfaces require a self IP, while untagged interfaces do not
d) Tagged interfaces are supported only on trunks, while untagged interfaces are supported only on physical interfaces

02. A pool member becomes unavailable while connections to it are in progress, and Action On Service Down is set to reselect. What outcome is expected for the affected traffic?
a) BIG-IP disables the whole pool until the member recovers
b) BIG-IP changes the route domain
c) BIG-IP moves it to another member
d) BIG-IP clears the license state

03. Several wildcard virtual servers are configured on a BIG-IP device. Which statement correctly describes how they are scoped?
a) Each is enabled on a specific VLAN
b) Each is enabled on a specific pool
c) Each is enabled on a specific trunk
d) Each is enabled on a specific route

04. A client packet arrives for destination IP 203.0.113.10, but no specific virtual server matches that exact address. A wildcard virtual server with destination 0.0.0.0:any exists. Which traffic behavior should the administrator expect?
a) The packet is dropped because a wildcard destination cannot accept client traffic
b) The packet is matched to the wildcard virtual server
c) The packet is forwarded by the default gateway without LTM processing
d) The packet is translated to the management address

05. Which virtual server type is most appropriate when BIG-IP should forward traffic toward the destination in the client request and there are no pool members to load balance?
a) Standard
b) Reject
c) Forwarding (IP)
d) Performance (HTTP)

06. For an active-active BIG-IP configuration, which failover method does F5 require instead of hard-wired serial failover?
a) Gateway fail-safe is required
b) Auto-failback is required
c) Connection mirroring is required
d) Network failover is required

07. Which virtual server type is used when BIG-IP should explicitly refuse traffic sent to a particular virtual address?
a) Reject virtual server
b) Performance (Layer 4) virtual server
c) Standard virtual server
d) Forwarding (IP) virtual server

08. A virtual server uses the default source address persistence profile source_addr. A client opens an initial HTTP session and is load balanced to Pool Member A. What should the administrator expect for later requests from the same client while the persistence record remains valid?
a) Each new request is load balanced again by the pool's load balancing method
b) Load balancing is suspended for every other client of that virtual server
c) A new record is written for the client on each later HTTP session, so load balancing runs again
d) The client returns to the same pool member through source address affinity

09. What is the main purpose of a self IP on a BIG-IP VLAN?
a) Enable a license check for that module
b) Enable monitoring for that pool
c) Enable IP connectivity on that segment
d) Enable persistence for that flow

10. A BIG-IP administrator wants to build a trunk from interfaces 1.1 and 1.2 for increased bandwidth and link redundancy. Which statement must be true before interface 1.1 can be assigned to that trunk?
a) The interface must already be tagged in every VLAN that will use the trunk
b) The interface must not already belong to another trunk
c) The interface must already have a self IP assigned
d) The interface must be in a floating traffic group