150 CCNA Switch Configuration MCQS with Explanation

141. What is the purpose of the show version command?

  • a) To display the software version of the switch
  • b) To display the hardware version of the switch
  • c) To display the switch configuration
  • d) To display VLAN information

Answer: a) To display the software version of the switch

The show version command provides information about the software version and other system details.

142. Fill in the blank: The command show ip route displays the IP routing _____ of the switch.

  • a) Protocol
  • b) Table
  • c) Interface
  • d) Status

Answer: b) Table

The show ip route command displays the IP routing table, which includes the routes known to the switch.

143. Which command is used to verify the status of a specific interface on a switch?

  • a) show interface status
  • b) show interface
  • c) show interfaces
  • d) show interfaces status

Answer: b) show interface

The show interface command provides detailed information about the status of a specific interface.

144. Fill in the blank: The command switchport port-security violation is used to define the action taken when a _____ violation occurs.

  • a) VLAN
  • b) Port security
  • c) IP address
  • d) MAC address

Answer: b) Port security


The switchport port-security violation command specifies the action to take when a port security violation occurs.

145. Which command displays a summary of the active VLANs and their associated ports?

  • a) show vlan
  • b) show vlan brief
  • c) show vlan status
  • d) show vlan summary

Answer: b) show vlan brief

The show vlan brief command provides a summary of active VLANs and their associated ports.

146. Fill in the blank: The _____ command is used to display information about trunking and VLANs allowed on a trunk port.

  • a) show trunk
  • b) show interfaces trunk
  • c) show vlan trunk
  • d) show trunk status

Answer: b) show interfaces trunk

The show interfaces trunk command displays detailed information about trunking and the VLANs allowed on trunk ports.

147. Which command is used to display the IP configuration of a switch’s management VLAN interface?

  • a) show ip interface vlan
  • b) show interface vlan
  • c) show vlan ip
  • d) show vlan management

Answer: a) show ip interface vlan

The show ip interface vlan command displays the IP configuration for VLAN interfaces.

148. Fill in the blank: The _____ command is used to set the description of a switch port.

  • a) description
  • b) port description
  • c) switchport description
  • d) set description

Answer: a) description


The description command is used to set a description for a switch port, which helps identify the port’s function or purpose.

149. Which command is used to save the current configuration to the startup configuration file?

  • a) copy running-config startup-config
  • b) save running-config
  • c) write memory
  • d) save config

Answer: a) copy running-config startup-config

The copy running-config startup-config command saves the current configuration to the startup configuration file, ensuring it is used after a reboot.

150. The command show port-security displays information about the switch’s _____ security configuration.

  • a) IP
  • b) Port
  • c) VLAN
  • d) Interface

Answer: b) Port

The show port-security command provides details about the port security configuration and status on the switch.
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