Q1. The network manager has requested that several new VLANs (VLAN 10, 20, and 30) are allowed to traverse the switch trunk interface. After the command switchport trunk allowed vlan 10,20,30 is issued, all other existing VLANs no longer pass traffic over the trunk. What is the root cause of the problem?

A. The command effectively removed all other working VLANs and replaced them with the new VLANs.

B. VTP pruning removed all unused VLANs.

C. ISL was unable to encapsulate more than the already permitted VLANs across the trunk.

D. Allowing additional VLANs across the trunk introduced a loop in the network.

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Q2. Which statement about restrictions for multichassis LACP is true?

A. It is available only on a Cisco Catalyst 6500 Series chassis.

B. It does not support 1Gb links.

C. Converting a port channel to mLACP can cause a service disruption.

D. It is not available in VSS.

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Q3. Which feature describes MAC addresses that are dynamically learned or manually configured, stored in the address table, and added to the running configuration?

A. sticky

B. dynamic

C. static

D. secure

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Q4. After the recent upgrade of the switching infrastructure, the network engineer notices that the port roles that were once "blocking" are now defined as "alternate" and "backup." What is the reason for this change?

A. The new switches are using RSTP instead of legacy IEEE 802.1D STP.

B. IEEE 802.1D STP and PortFast have been configured by default on all newly implemented Cisco Catalyst switches.

C. The administrator has defined the switch as the root in the STP domain.

D. The port roles have been adjusted based on the interface bandwidth and timers of the new Cisco Catalyst switches.

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Q5. What happens on a Cisco switch that runs Cisco IOS when an RSTP-configured switch receives 802.1d BPDU?

A. 802.1d does not understand RSTP BPDUs because they are different versions, but when a RSTP switch receives an 802.1d BPDU, it responds with an 802.1d BPDU and eventually the two switches run 802.1d to communicate.

B. 802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it responds with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.

C. 802.1d does not understand RSTP BPDUs because they are different versions, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU.

D. 802.1d understands RSTP BPDUs because they are the same version, but when a RSTP switch receives a 802.1d BPDU, it does not respond with a 802.1d BPDU and eventually the two switches run 802.1d to communicate.

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Q6. Refer to the exhibit.

Which EtherChannel negotiation protocol is configured on the interface f0/13 – f0/15?

A. Link Combination Control Protocol

B. Port Aggregation Protocol

C. Port Combination Protocol

D. Link Aggregation Control Protocol

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Q7. In a Cisco switch, what is the default period of time after which a MAC address ages out and is discarded?

A. 100 seconds

B. 180 seconds

C. 300 seconds

D. 600 seconds

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Q8. What is the function of NSF?

A. forward traffic simultaneously using both supervisors

B. forward traffic based on Cisco Express Forwarding

C. provide automatic failover to back up supervisor in VSS mode

D. provide nonstop forwarding in the event of failure of one of the member supervisors

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Q9. Refer to the exhibit.

How many bytes are added to each frame as a result of the configuration?

A. 4-bytes except the native VLAN

B. 8-bytes except the native VLAN

C. 4-bytes including native VLAN

D. 8-bytes including native VLAN

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Q10. Which command does a network engineer use to verify the spanning-tree status for VLAN 10?

A. switch# show spanning-tree vlan 10

B. switch# show spanning-tree bridge

C. switch# show spanning-tree brief

D. switch# show spanning-tree summary

E. switch# show spanning-tree vlan 10 brief

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