Which technology prevents client devices from arbitrarily connecting to the network without state remediation?

A. 802.11n
B. 802.1x
C. MAC Authentication Bypass
D. IP Source Guard

An engineer needs to add an old switch back into a network. To prevent the switch from corrupting the VLAN database, with action must be taken?

A. Add the switch in the VTP domain with a lower revision number.
B. Add the switch in the VTP domain with a higher revision number.
C. Add the switch with DTP set to dynamic desirable.
D. Add the switch with DTP set to desirable.

Refer to the exhibit. An engineer must configure GigabitEthernet1/1 to accommodate voice and data traffic.
Which configuration accomplishes this task?

A. interface gigabitethernet1/1
switchport mode access
switchport access vlan 300
switchport voice vlan 400
B. interface gigabitethernet1/1
switchport mode trunk
switchport trunk vlan 300
switchport trunk vlan 400
C. interface gigabitethernet1/1
switchport mode access
switchport voice vlan 300
switchport access vlan 400
D. interface gigabitethernet1/1
switchport mode trunk
switchport trunk vlan 300
switchport voice vlan 400

Refer to the exhibit. The entire contents or the MAC address table are shown. Sales-4 sends a data frame to Sales-1.

What does the switch do as it receives the frame from Sales-4?

A. Map the Layer 2 MAC address to the Layer 3 IP address and forward the frame.
B. Insert the source MAC address and port into the forwarding table and forward the frame to Sales-1.
C. Perform a lookup in the MAC address table and discard the frame due to a missing entry.
D. Flood the frame out of all ports except on the port where Sales-1 is connected.

Refer to the exhibit. Which command must be executed for Gi1/1 on SW1 to passively become a trunk port if Gi1/1 on SW2 is configured in desirable or trunk mode?

A. switchport mode dynamic auto
B. switchport mode dot1-tunnel
C. switchport mode dynamic desirable
D. switchport mode trunk

When using Rapid PVST+, which command guarantees the switch is always the root bridge for VLAN 200?

A. spanning-tree vlan 200 priority 614440
B. spanning-tree vlan 200 priority 0
C. spanning-tree vlan 200 root primary
D. spanning-tree vlan 200 priority 38813258

How does the dynamically-learned MAC address feature function?

A. The CAM table is empty until ingress traffic arrives at each port
B. Switches dynamically learn MAC addresses of each connecting CAM table.
C. The ports are restricted and learn up to a maximum of 10 dynamically-learned addresses
D. It requires a minimum number of secure MAC addresses to be filled dynamically

Which spanning-tree enhancement avoids the learning and listening states and immediately places ports in the forwarding state?

A. BPDUfilter
B. PortFast
C. Backbonefast
D. BPDUguard

An engineer must establish a trunk link between two switches. The neighboring switch is set to trunk or desirable mode. What action should be taken?

A. configure switchport nonegotiate
B. configure switchport mode dynamic desirable
C. configure switchport mode dynamic auto
D. configure switchport trunk dynamic desirable

Refer to the exhibit. After the election process, what is the root bridge in the HQ LAN?
Switch 1: 0C:E0:38:81:32:58
Switch 2: 0C:0E:15:22:1A:61
Switch 3: 0C:0E:15:1D:3C:9A
Switch 4: 0C:E0:19:A1:4D:16


A. Switch 1
B. Switch 2
C. Switch 3
D. Switch 4