Q. 51:
Which of the following is a characteristic of a collision domain?
a) All devices in the domain share the same IP address
b) Only one device can send data at a time
c) It encompasses all devices connected in the same VLAN
d) It prevents broadcasts from being sent
Answer: (b) Only one device can send data at a time
Q. 52:
What protocol is used by switches to share MAC address table information between them?
a) CDP
b) STP
c) VTP
d) None of the above
Answer: (d) None of the above (Switches don’t share MAC address tables; each switch maintains its own table)
Q. 53:
Which Cisco IOS command displays information about the trunk ports on a switch?
a) show trunks
b) show interface trunk
c) show switchport trunk
d) show ip interface trunk
Answer: (b) show interface trunk
Q. 54:
What happens if a switch receives a frame with an unknown destination MAC address?
a) It floods the frame out of all ports except the one it came from
b) It sends the frame to the default gateway
c) It drops the frame
d) It forwards the frame to the VLAN management interface
Answer: (a) It floods the frame out of all ports except the one it came from
Q. 55:
Which of the following protocols operates at Layer 2 and is used to discover neighboring Cisco devices?
a) CDP
b) LLDP
c) ARP
d) ICMP
Answer: (a) CDP (Cisco Discovery Protocol)
Q. 56:
Which type of address is learned dynamically by switches?
a) IP address
b) MAC address
c) Port address
d) Subnet address
Answer: (b) MAC address
Q. 57:
Which command is used to display the MAC address table on a Cisco switch?
a) show mac
b) show mac address
c) show mac address-table
d) show interfaces mac
Answer: (c) show mac address-table
Q. 58:
What type of traffic is typically sent using a multicast address?
a) Unicast
b) Broadcast
c) ARP
d) Multicast
Answer: (d) Multicast
Q. 59:
Which Cisco protocol provides a method for resolving conflicts that may arise when multiple devices try to claim the same IP address?
a) HSRP
b) VRRP
c) CDP
d) DHCP
Answer: (d) DHCP (via the Address Resolution Protocol (ARP) and ICMP)
Q. 60:
Which of the following is a Cisco proprietary link aggregation protocol?
a) LACP
b) PAgP
c) EtherChannel
d) BPDU
Answer: (b) PAgP (Port Aggregation Protocol).
