Informative Quiz On CCENT/CCNA Icnd1 Chapters 8 + 9

The correct answer is "copy running-config startup-config." This command copies the configuration from the running configuration in RAM to the startup configuration in NVRAM. This ensures that the configuration changes made in the current session are saved and will be loaded the next time the device is powered on.

SSH encrypts all data exchange, including login passwords, while Telnet does not encrypt any data. This means that when using SSH, all communication between the client and the server, including the login credentials, is encrypted, providing a secure connection. On the other hand, Telnet does not provide any encryption, making it vulnerable to eavesdropping and unauthorized access.

The enable secret command is used to set a password for accessing privileged mode. When logging back in at the console, the password that needs to be entered to access privileged mode is the one set by the enable secret command.

RAM, or Random Access Memory, is the type of switch memory used to store the configuration used by the switch when it is up and working. RAM is a volatile memory, meaning that its contents are lost when power is turned off or interrupted. However, it provides fast read and write access, making it ideal for storing temporary data such as the switch configuration.

In the interface configuration mode of the CLI, you can configure specific settings for a particular interface. In this case, you can configure the duplex setting for interface fastethernet 0/5. This mode allows you to make changes and settings that are specific to a particular interface, such as enabling or disabling features, setting speed and duplex settings, and configuring IP addresses.

In the enable mode of the CLI, you have administrative privileges and can issue commands to perform various tasks, including rebooting the switch. This mode allows you to make changes to the switch's configuration and access all available commands and features.

The correct answer is to configure the speed 100 and duplex full interface subcommands. This is because setting the speed to 100 and duplex to full manually disables the autonegotiation feature of the IEEE standard on a 10/100 port on a Cisco switch. Autonegotiation allows devices to automatically negotiate and select the best speed and duplex settings for communication. By manually configuring the speed and duplex, the switch will not negotiate with the connected device and will operate at the specified settings.

When a user logs in from the console after the given command is executed, the banner text "his is" will be displayed.

Using the exit command twice in a row or pressing the Ctrl-z key sequence would both place the user in enable mode. The exit command is used to exit the current mode and return to the previous mode. By using it twice in a row, the user would exit console line configuration mode and return to the user EXEC mode, and then exit the user EXEC mode and enter enable mode. Pressing the Ctrl-z key sequence is another way to exit console line configuration mode and enter enable mode.

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Setup mode is the mode that prompts the user for basic configuration information. In this mode, the user is guided through a series of prompts to configure basic settings such as hostname, passwords, and interfaces. This mode is typically used when initially setting up a device or when performing a factory reset.

The command "show mac-address-table" can be executed in both User mode and Enable mode. In User mode, the command provides a read-only view of the MAC address table. In Enable mode, the command provides a more detailed view of the MAC address table, including additional information such as VLAN assignments. It cannot be executed in Global configuration mode, Setup mode, or Interface configuration mode.

The correct answer is the vlan 2 global configuration command. This command is used to create a VLAN with the VLAN ID of 2 in the global configuration mode. The output of the show vlan brief command indicates that a VLAN with ID 2, named "my-vlan", is active and is associated with the FastEthernet interfaces Fa0/13 and Fa0/15. Therefore, it can be inferred that the vlan 2 global configuration command was used to create and activate this VLAN.

To allow the engineer to telnet to the branch office switches, the following commands must be configured:

1. The ip address command in VLAN 1 configuration mode: This command is necessary to assign an IP address to the VLAN 1 interface on the branch office switches, allowing them to communicate with other devices on the network.

2. The ip default-gateway command in global configuration mode: This command is required to set the default gateway address on the branch office switches, enabling them to send traffic to devices outside their local network.

3. The password command in vty line configuration mode: This command is used to set a password for remote access to the branch office switches via Telnet. It ensures that only authorized users can access the switches remotely.

The engineer changed the configuration to support Secure Shell, which means that Telnet access is no longer allowed and SSH access is enabled instead. To configure SSH access, the engineer would have used the "A transport input ssh command in vty config mode" to specify that only SSH connections are allowed on the virtual terminal lines. Additionally, the engineer would have used the "A username name password password global configuration command" to create a username and password for authentication when accessing the switch via SSH.