Cisco ENCOR Lan Switches 4

Question 1

Which type of switch memory stores the IOS image that persists across reboots?

Accepted Answer

Flash

Answer

Flash memory on Cisco switches stores the IOS image files and retains them when the device is powered off.

Question 2

A trunk link is carrying VLANs 10, 20, and 30. An administrator runs 'switchport trunk allowed vlan remove 20'. What is the result?

Accepted Answer

VLAN 20 is removed from the trunk's allowed list and no longer passes

Answer

The 'remove' keyword removes the specified VLAN from the allowed VLAN list on the trunk, stopping all VLAN 20 traffic across that link.

Question 3

What does the Cisco switch feature 'Storm Control' protect against?

Accepted Answer

Excessive broadcast, multicast, or unicast traffic flooding

Answer

Storm Control monitors traffic levels on a port and takes action (drop or shutdown) when broadcast, multicast, or unicast traffic exceeds a configured threshold.

Question 4

In a VSS (Virtual Switching System) deployment, what is the primary benefit over a traditional dual-supervisor chassis?

Accepted Answer

Two physical switches appear as a single logical switch, enabling active-active forwarding

Answer

VSS pairs two physical chassis into one logical switch, enabling active-active data forwarding across both chassis and eliminating the need for STP between the pair.

Question 5

Which switch feature prevents IP packets from being forwarded when the source IP address does not match the DHCP snooping binding table entry for a port?

Accepted Answer

IP Source Guard

Answer

IP Source Guard uses the DHCP snooping binding table to verify the source IP of packets, dropping any that do not match the expected binding for that port.

Cisco ENCOR Practice Test

Cisco ENCOR Practice Test

Cisco ENCOR Lan Switches 4