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Questions and Answers
Which filtering parameter displays all output lines starting with the line that matches the filtering expression?
What is the purpose of the pipe character (|) in filtering commands?
Which filtering parameter shows the entire section starting with the filtering expression?
How can you recall previously executed commands using the command history feature?
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What command is used to display the contents of the command history buffer?
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Which filtering parameter excludes all output lines that match the filtering expression?
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Which key combination can be used to recall more recent commands in the command history buffer?
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What is the default number of command lines stored in the history buffer?
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Which command is used to increase or decrease the size of the command history buffer?
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Which filtering parameter includes all output lines that match the filtering expression?
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Study Notes
Configure a Switch with Initial Settings
- By default, a switch is configured to have its management controlled through VLAN 1, and all ports are assigned to VLAN 1.
- For security purposes, it's considered a best practice to use a VLAN other than VLAN 1 for the management VLAN.
- To configure the management interface, enter interface configuration mode, apply an IPv4 address and subnet mask to the management SVI of the switch, and enable the management interface.
Switch SVI Configuration Example
- Enter global configuration mode using the command
S1# configure terminal. - Enter interface configuration mode for the SVI using the command
S1(config)# interface vlan 99. - Configure the management interface IPv4 address using the command
S1(config-if)# ip address 172.17.99.11 255.255.255.0. - Configure the management interface IPv6 address using the command
S1(config-if)# ipv6 address 2001:db8:acad:99::1/64. - Enable the management interface using the command
S1(config-if)# no shutdown.
Lab – Basic Switch Configuration
- Objectives:
- Cable the network and verify the default switch configuration.
- Configure basic network device settings.
- Verify and test network connectivity.
- Manage the MAC address table.
Configure Switch Ports
- Full-duplex communication increases bandwidth efficiency by allowing both ends of a connection to transmit and receive data simultaneously.
- Half-duplex communication creates performance issues because data can flow in only one direction at a time, often resulting in collisions.
Verify Switch Port Configuration
- Use the
show running-configcommand to verify that the switch has been correctly configured. - Use the
show interfacescommand to display status and statistics information on the network interfaces of the switch.
Secure Remote Access
- To display the version and configuration data for SSH on the device that you configured as an SSH server, use the
show ip sshcommand. - In the example, SSH version 2 is enabled.
Basic Router Configuration
- Cisco routers and switches have many similarities, including similar modal operating systems, command structures, and many of the same commands.
- Initial configuration tasks include:
- Naming the device to distinguish it from other routers.
- Configuring passwords.
- Configuring a banner to provide legal notification of unauthorized access.
Command History Feature
- The command history feature temporarily stores the list of executed commands to be recalled.
- To recall commands in the history buffer, press Ctrl+P or the Up Arrow key.
- By default, command history is enabled and the system captures the last 10 command lines in its history buffer.
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Description
Learn how to configure a switch with initial settings, including setting up a management interface and VLAN configuration for security purposes.
