How does a VLAN depend on interfaces or trunks on a BIG-IP system?

A VLAN depends on the self-IP address assigned to it.

A VLAN requires at least one associated interface or trunk that is operationally Up to pass traffic.

A VLAN depends on the routes configured on the BIG-IP.

A VLAN can pass traffic even if all associated interfaces are Down.

An administrator is troubleshooting a routing issue. The BIG-IP has a self-IP 10.10.10.1/24 on VLAN 'vlan10'. The administrator checks the self-IP status and sees it is 'Down'. What is the most likely cause?

The self-IP is not being used by any virtual server.

The self-IP is not assigned to any route.

The self-IP has a routing conflict.

An administrator is monitoring a trunk 'trunk1' and notices that the 'Total Packets' counter is increasing, but the 'Total Drops' counter is also increasing. What does this indicate?

The trunk is being used for management traffic only.

The trunk is experiencing congestion or errors, causing packets to be dropped.

The trunk is Down and the counters are showing historical data.

The trunk is operating normally and the drops are expected.

Which statistic is used to assess the traffic passing through a VLAN on a BIG-IP system?

Packets In and Packets Out counters

F5Certified Administrator, BIG-IP (F5-CA, BIG-IP)

Domain 1Objective 5

trunks, VLANs, self-IPs F5CAB2 Practice Questions (Page 2)

Part of the Explain the relationship between interfaces, trunks, VLANs, self-IPs, routes and their status/statistics domain, which makes up ~23% of our current practice bank. F5 does not publish an official question count, but from its 30-minute exam (~10–20 total, ~2–5 in this domain), expect 1–1 from this objective — we provide 20 practice questions to prepare you well beyond it. (estimate)

20questions here

4free pages

10concepts

10 Concepts in This Objective

Interface status Up/Down
Dependencies of interfaces on trunks
Dependencies of trunks on interfaces
Dependencies of VLANs on interfaces/trunks
Dependencies of self-IPs on VLANs
Dependencies of routes on self-IPs
Status and statistics of interfaces/trunks
Status and statistics of VLANs
Status and statistics of self-IPs
Status and statistics of routes

Questions 6–10

6foundation · easy
Which statistic is commonly used to assess the health of an interface on a BIG-IP system?
Select an answer first
7foundation · easy
How does a VLAN depend on interfaces or trunks on a BIG-IP system?
Select an answer first
8application · medium
An administrator is troubleshooting a routing issue. The BIG-IP has a self-IP 10.10.10.1/24 on VLAN 'vlan10'. The administrator checks the self-IP status and sees it is 'Down'. What is the most likely cause?
Select an answer first
9application · medium
An administrator is monitoring a trunk 'trunk1' and notices that the 'Total Packets' counter is increasing, but the 'Total Drops' counter is also increasing. What does this indicate?
Select an answer first
10foundation · easy
Which statistic is used to assess the traffic passing through a VLAN on a BIG-IP system?
Select an answer first

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