Q. 41:
What is the purpose of VTP pruning?
a) To increase network security
b) To restrict VLAN advertisements to necessary trunks
c) To block VLANs from unauthorized switches
d) To delete unused VLANs from the switch
Answer: (b) To restrict VLAN advertisements to necessary trunks
Q. 42:
Which spanning-tree feature prevents temporary loops during network topology changes?
a) BPDU Guard
b) PortFast
c) UplinkFast
d) Loop Guard
Answer: (c) UplinkFast
Q. 43:
What command is used to enable port security on a Cisco switch port?
a) switchport port-security enable
b) port-security enable
c) switchport security
d) switchport port-security
Answer: (d) switchport port-security
Q. 44:
Which VLAN range is reserved for Ethernet VLANs in Cisco switches?
a) 0-255
b) 1-1005
c) 1006-4096
d) 4096-8192
Answer: (b) 1-1005
Q. 45:
Which port security violation mode restricts traffic from the violating MAC address but does not send an alert?
a) Protect
b) Restrict
c) Shutdown
d) Block
Answer: (a) Protect
Q. 46:
Which of the following is a dynamic VLAN assignment protocol used with network access control?
a) VTP
b) RADIUS
c) 802.1X
d) ISL
Answer: (c) 802.1X
Q. 47:
Which Spanning Tree Protocol enhancement allows for faster convergence when a direct link failure occurs?
a) BPDU Guard
b) Loop Guard
c) Rapid PVST+
d) PortFast
Answer: (c) Rapid PVST+
Q. 48:
Which protocol can be used to automatically assign IP addresses to devices in a VLAN?
a) ARP
b) DHCP
c) NAT
d) ICMP
Answer: (b) DHCP
Q. 49:
What is the default VLAN for untagged frames on a Cisco trunk port?
a) VLAN 1
b) VLAN 100
c) Native VLAN
d) VLAN 0
Answer: (a) VLAN 1
Q. 50:
Which type of switch port security violation drops traffic and increments the violation counter but does not shut down the port?
a) Shutdown
b) Protect
c) Restrict
d) Block
Answer: (c) Restrict.
