ACSP VLANs and Link Aggregation 3

Question 1

Which hashing algorithm component is NOT typically used by Aruba CX switches for LAG load balancing?

Accepted Answer

VLAN ID of the frame

Answer

LAG load balancing hashes on MAC, IP, and L4 port fields, but VLAN ID is not a standard hashing input for load distribution.

Question 2

A network engineer configures VLAN 99 as the management VLAN on an Aruba CX switch. Which additional step is required to manage the switch via SSH over VLAN 99?

Accepted Answer

Assign an IP address to the VLAN 99 SVI

Answer

The switch needs an IP address configured on the VLAN 99 SVI (Switch Virtual Interface) to route management traffic.

Question 3

When using LACP in passive mode on both ends of a link, what is the result?

Accepted Answer

The LAG will never form because neither side initiates negotiation

Answer

LACP passive mode waits for the peer to initiate; if both sides are passive, neither sends PDUs and the LAG never establishes.

Question 4

On an Aruba CX switch, which VLAN configuration is required before a port can be assigned to that VLAN?

Accepted Answer

The VLAN must be created in the global VLAN database

Answer

A VLAN must exist in the global VLAN database before it can be assigned to any port as an access or trunk VLAN.

Question 5

What is the purpose of the LACP 'short' timer compared to the 'long' timer?

Accepted Answer

Short timer sends PDUs every 1 second for faster failure detection versus every 30 seconds with long timer

Answer

The LACP short timer transmits PDUs every 1 second (timeout 3 seconds), enabling much faster link failure detection compared to the long timer's 30-second interval.

(ACSP) Aruba Certified Switching Professional Practice Test

(ACSP) Aruba Certified Switching Professional Practice Test

ACSP VLANs and Link Aggregation 3