Q. 111:
What is the default action when a Cisco switch port violates the port security policy?
a) Protect
b) Restrict
c) Shutdown
d) Allow
Answer: (c) Shutdown
Q. 112:
Which protocol is responsible for eliminating loops in a Layer 2 network topology?
a) VTP
b) LACP
c) Spanning Tree Protocol
d) EtherChannel
Answer: (c) Spanning Tree Protocol
Q. 113:
Which of the following allows a switch to automatically disable a port that receives a BPDU?
a) BPDU Guard
b) Root Guard
c) Loop Guard
d) UplinkFast
Answer: (a) BPDU Guard
Q. 114:
Which Cisco IOS command displays the root bridge and priority for a specific VLAN?
a) show spanning-tree vlan [vlan_id] root
b) show spanning-tree vlan
c) show vlan root
d) show spanning-tree root priority
Answer: (a) show spanning-tree vlan [vlan_id] root
Q. 115:
Which of the following VLAN types is used to carry user data?
a) Native VLAN
b) Voice VLAN
c) Data VLAN
d) Default VLAN
Answer: (c) Data VLAN
Q. 116:
Which Cisco feature ensures that only a limited number of MAC addresses can be learned on a port?
a) PortFast
b) Port security
c) BPDU Guard
d) VTP
Answer: (b) Port security
Q. 117:
Which command is used to configure a switchport for trunking with 802.1Q encapsulation?
a) switchport trunk encapsulation dot1q
b) switchport mode trunk
c) switchport vlan trunk
d) switchport trunk dot1q
Answer: (a) switchport trunk encapsulation dot1q
Q. 118:
Which command is used to configure a port to immediately transition into the forwarding state when connected to an end device?
a) spanning-tree portfast
b) spanning-tree uplinkfast
c) switchport fast
d) spanning-tree fast-enable
Answer: (a) spanning-tree portfast
Q. 119:
Which Cisco proprietary protocol allows for aggregation of links between switches?
a) STP
b) PAgP
c) LACP
d) BPDU
Answer: (b) PAgP (Port Aggregation Protocol) .
