The Ultimate Quiz On CISCO Lan Switches!

The given command "Switch(config)#?" is used to display a list of available commands in the CONFIGURATION mode of the switch. This mode allows the user to make changes to the configuration settings of the switch, such as setting up VLANs, configuring port settings, and enabling various features. By entering this command, the user can see a list of all the commands that are available to them in this mode, helping them navigate and configure the switch effectively.

To use Telnet/SSH to access a switch's CLI, you would need an IP address. This is because Telnet and SSH are network protocols that require an IP address to establish a connection with the switch. The IP address allows the switch to be uniquely identified on the network, enabling remote access to its command-line interface. Without an IP address, it would not be possible to establish a network connection and access the switch's CLI remotely.

The correct answer is SSH, Console port, and Telnet. These three methods are commonly used to access a Cisco switch's CLI (Command Line Interface). SSH (Secure Shell) is a secure network protocol that allows remote access to the switch's command line interface. The Console port is a physical port on the switch that provides direct access to the CLI through a serial connection. Telnet is a network protocol that allows remote access to the switch's CLI, although it is less secure compared to SSH.

The given CLI command "set password password for console access" is used to set a password for accessing the console of a device. This password is required to authenticate and gain access to the device's console interface.

The given command "Switch>" indicates that the user is in the USER mode of the switch. In this mode, only the available commands for regular users are listed. Therefore, the correct answer is "list only available commands in the USER mode."

The answer A - ST || B - R || C - CO indicates that the cable used for connection A to B is a Straight Through cable, the cable used for connection B to C is a Rolled cable, and the cable used for connection C to D is a Cross-over cable. This combination of cable types ensures that the correct pinouts and wiring configurations are used for each connection, allowing for proper communication between the devices.

For older Cisco switches, only 4 concurrent vty lines are supported

The given command "Switch#?" will list only the available commands in the ENABLE mode. This means that it will display a list of commands that can be executed while in the privileged EXEC mode, allowing the user to configure and manage the switch.

When typing "exit" in this scenario, the prompt will return to "Switch(config)#". This is because "Switch(config)#" is the highest level of configuration mode, and typing "exit" will exit from any lower level configuration modes, such as "Switch(config-if)#", and return to the highest level configuration mode.

When you type "END", you will return to the prompt "Switch#". This is because the prompt "Switch#" is the main prompt or the default prompt where you can enter commands directly. The other prompts mentioned, such as "Switch(config)#", "Switch>", and "Switch(config-if)#", indicate different modes or configurations that you can access within the switch's command-line interface (CLI). However, when you type "END", it will take you back to the main prompt "Switch#" where you can continue entering commands.

The given correct answer states that by default, a Cisco switch only allows console access. This means that remote access is not enabled, and users can only access the switch through a physical connection to the console port. This provides a higher level of security because it limits access to the switch to only those who have physical access to it. Remote access options like SSH and Telnet are not enabled by default, further enhancing the security of the switch.

The RJ-45 interface goes to the console while the serial interface goes to the PC. This is because the console port on the Cisco switch uses an RJ-45 interface, which is a standard Ethernet port. The PC, on the other hand, typically uses a serial interface to connect to devices like switches. Therefore, to connect a PC to the Cisco switch's console port using a rolled cable, the RJ-45 end of the cable should be connected to the console port, while the serial end should be connected to the PC.

After modifying settings in CONFIGURATION mode on a switch, the new changes will be applied only after you type "copy running startup" to save the configuration to the startup configuration file and then reboot the switch. This ensures that the changes made in the running configuration are saved and implemented upon rebooting the switch.

The right arrow or Ctrl-F moves the cursor forward in the currently displayed command without deleting characters.

When you modify settings in CONFIGURATION mode, the changes are only saved in RAM. RAM (Random Access Memory) is volatile memory, meaning that its contents are lost when the device is powered off or restarted. Therefore, the changes made in CONFIGURATION mode will not persist after a reboot unless they are manually saved to a more permanent storage location, such as NVRAM or Flash.

The up arrow or CTRL-P key is used to display the most recently used command in the command line interface. Pressing it again will show the next most recent command until the history buffer is exhausted.

When the LED is green, it indicates full duplex. This means that data can be transmitted and received simultaneously on the switch. On the other hand, when the LED is off, it means there is no duplex, indicating that the switch can only transmit or receive data at a time. Therefore, the given answer correctly states that the LED being green signifies full duplex, and when it is off, it means no duplex.

Backspace is the correct answer because it is the key that moves the cursor backward in the currently displayed command and deletes characters.

Pressing the Esc-F key combination moves the cursor forward one word.

Rolled and rollover cables are the same

The left arrow or Ctrl-B moves the cursor backward in the currently displayed command without deleting characters.

When you type "copy startup running," the content of the startup configuration will merge with the content of the running configuration. This means that any configuration settings in the startup configuration that are not already present in the running configuration will be added, while any conflicting settings in the running configuration will be overwritten by the corresponding settings in the startup configuration. This allows for the seamless integration of the startup configuration changes into the current running configuration.

The correct answer is "POST failed and Cisco IOS did not load." If the LED light on the switch is on but has an amber color, it indicates that the Power-On Self-Test (POST) has failed and the Cisco IOS did not load properly. This could be due to a hardware issue or a problem with the software.

Ctrl-A is the correct answer because it is the keyboard shortcut that moves the cursor directly to the first character of the currently displayed command.

Pressing the Esc-F key combination moves the cursor forward one word.

Pressing Esc-B moves the cursor back one word.

Reload the switch only works if the switch has no configuration. If it has some configuration, the switch will not resume SETUP after reloading. You have to type setup under enable (privileged mode)

The Down arrow or Ctrl-N keys are used to navigate forward in the history buffer, allowing you to access more recently entered commands. These keys are commonly used in command line interfaces to quickly scroll through the command history and retrieve previously executed commands.

SSH requires both username and password to be set. Telnet only requires a password

Ctrl-D is the correct answer because it is the keyboard shortcut that deletes a single character. This shortcut is commonly used in text editors and command line interfaces to delete the character at the cursor position.

Ctrl-R is the correct answer because it allows you to search through the command line history. This is useful when you want to find and reuse a previously entered command without having to manually scroll through the entire history.

The given commands are used to erase the content of NVRAM. "erase startup-config" and "write erase" are both valid commands to delete the startup configuration file. "erase NVRAM" is also a valid command to erase the content of NVRAM. However, "delete startup-config", "delete NVRAM", and "copy running-config startup-config" are not correct commands to erase the content of NVRAM.

The dark LED represents a switch status of 10 Mbps, the green (solid) LED represents a switch status of 100 Mbps, and the green (flashing) LED represents a switch status of 1000 Mbps.

Both Telnet and SSH requires an IP to access a switch remotely (no MAC here)
A console password is only required for console access (hence the word console)

All of these are valid options

The correct answer is the combination of settings that represent the default console port setting on a switch. The console port on a switch typically operates at a speed of 9600 bps (bits per second) and does not use parity bits for error checking. It also does not use hardware flow control, which means that data transmission is not regulated by signals between the sending and receiving devices. The console port uses 1 stop bit to indicate the end of a character and uses 8-bit ASCII encoding to represent characters. These settings are commonly used for console communication with network devices.

OFF - The link is not working: This is the correct answer as when the switch status LED is off, it indicates that the link is not working.

Solid GREEN - link is working but there is no traffic: This is the correct answer as when the switch status LED is solid green, it indicates that the link is working but there is no traffic passing through.

GREEN (flashing) - link is working and traffic is passing through: This is the correct answer as when the switch status LED is flashing green, it indicates that the link is working and traffic is passing through.

AMBER (flashing) - Link is on but interface is administratively disabled: This is the correct answer as when the switch status LED is flashing amber, it indicates that the link is on but the interface is administratively disabled.