The Ultimate Quiz On CISCO Lan Switches!

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  • 1/37 Questions

    Switch(config)#? The above command will

    • List all available commands on the switch
    • List only available commands in the USER mode
    • List only available commands in the ENABLE mode
    • List only available commands in the CONFIGURATION mode
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About This Quiz

This quiz has been designed for students, professionals and learners to know how much they know about Cisco LAN switches. This will help you to prepare for the final Cisco test. It has multiple choice questions. So, let's try out this quiz. All the best!

The Ultimate Quiz On CISCO Lan Switches! - Quiz

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  • 2. 

    In order to use Telnet/SSH to access a switch's CLI, you would need

    • A MAC address

    • An IP address

    • Console cable

    • RDP session

    • Rollover cable

    Correct Answer
    A. An IP address
    Explanation
    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.

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  • 3. 

    (3) ways to access a Cisco switch's CLI are

    • SSH

    • TS Gateway

    • Web browser

    • RDP

    • Console port

    • LAN

    • Telnet

    • Ethernet

    Correct Answer(s)
    A. SSH
    A. Console port
    A. Telnet
    Explanation
    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.

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  • 4. 
    The above CLI is to do what - ProProfs

    The above CLI is to do what

    • Set password password for line 0 access

    • Set password password for SSH access

    • Set password password for console access

    • Set password password for telnet access

    Correct Answer
    A. Set password password for console access
    Explanation
    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.

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  • 5. 

    Switch>? The above command will

    • List all available commands on the switch

    • List only available commands in the USER mode

    • List only available commands in the ENABLE mode

    • List only available commands in the CONFIGURATION mode

    Correct Answer
    A. List only available commands in the USER mode
    Explanation
    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."

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  • 6. 
    ST - Straight through CO - Cross-over R - Rolled - ProProfs

    ST - Straight through CO - Cross-over R - Rolled

    • A - ST || B - CO || C - CO

    • A - ST || B - R || C - CO

    • A - ST || D - R || C - CO

    • A - ST || C - R || D - CO

    Correct Answer
    A. A - ST || B - R || C - CO
    Explanation
    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.

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  • 7. 

    Currently, how many vty lines do Cisco switches support concurrently?

    • 4

    • 16

    • 15

    • 1

    Correct Answer
    A. 16
    Explanation
    For older Cisco switches, only 4 concurrent vty lines are supported

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  • 8. 

    Switch#? The above command will

    • List all available commands on the switch

    • List only available commands in the USER mode

    • List only available commands in the ENABLE mode

    • List only available commands in the CONFIGURATION mode

    Correct Answer
    A. List only available commands in the ENABLE mode
    Explanation
    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.

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  • 9. 
    If I type exit, which prompt do I return to? - ProProfs

    If I type exit, which prompt do I return to?

    • Switch#

    • Switch(config)#

    • Switch>

    • Switch(config-if)#

    Correct Answer
    A. Switch(config)#
    Explanation
    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.

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  • 10. 
    If I type END, which prompt do I return to? - ProProfs

    If I type END, which prompt do I return to?

    • Switch#

    • Switch(config)#

    • Switch>

    • Switch(config-if)#

    Correct Answer
    A. Switch#
    Explanation
    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.

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  • 11. 

    By default, a Cisco switch is very secured out of the box because it

    • Only allows remote access from a secured location

    • Only allows console access

    • Turns on vty and console password so that secured remote session from SSH and Telnet can be made

    • Disables all physical and remote access and users have to call Cisco Technical Assistance Center (TAC) to activate the switch first

    Correct Answer
    A. Only allows console access
    Explanation
    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.

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  • 12. 

    On the rolled (rollover or console) cable used to connect a PC to the Cisco switch's console port, each end of the cable goes to either a PC or the console port. Which one goes to which?

    • RJ-45 interface goes to the PC while the serial interface goes to the console

    • RJ-45 interface goes to the console while the serial interface goes to the PC

    • RJ-45 interface goes to both the console and the PC

    • Serial interface goes to both the console and the PC

    Correct Answer
    A. RJ-45 interface goes to the console while the serial interface goes to the PC
    Explanation
    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.

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  • 13. 

    On a switch, after you modify settings in CONFIGURATION mode, new changes will be applied only

    • After you reboot the switch

    • After you type copy running tftp

    • After you type copy running startup

    • After you type copy running startup and reboot the switch

    Correct Answer
    A. After you type copy running startup and reboot the switch
    Explanation
    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.

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  • 14. 

    This moves the cursor forward in the currently displayed command without deleting characters

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Right arrow or Ctrl-F
    Explanation
    The right arrow or Ctrl-F moves the cursor forward in the currently displayed command without deleting characters.

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  • 15. 

    If you modify settings in CONFIGURATION mode, new changes are

    • Only saved in RAM

    • Only saved in NVRAM

    • Saved in RAM and automatically synced in NVRAM

    • Only saved in Flash

    • Only saved in ROM

    Correct Answer
    A. Only saved in RAM
    Explanation
    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.

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  • 16. 

    This displays the most recently used command. If you press it again, the next most recent command appears, until the history buffer is exhausted.

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Up arrow or CTRL-P
    Explanation
    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.

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  • 17. 

    Switch status from LED - the DUPLX (duplex) LED. Pick the answer(s) that are correct to the corresponding color and description

    • LED is green means full duplex

    • LED is green means half duplex

    • LED is OFF means no duplex

    Correct Answer(s)
    A. LED is green means full duplex
    A. LED is OFF means no duplex
    Explanation
    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.

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  • 18. 

    This moves forward 1 word

    • Up arrow or CTRL-P

    • Down arrow or Ctrl-N

    • Left arrow or Ctr-B

    • Right arrow or Ctrl-F

    • Backspace

    • Ctrl-A

    • Ctrl-E

    • Ctrl-R

    • Ctrl-D

    • Esc-B

    • Esc-F

    Correct Answer
    A. Esc-F
    Explanation
    Pressing the Esc-F key combination moves the cursor forward one word.

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  • 19. 

    This moves the cursor backward in the currently displayed command deleting characters

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

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

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  • 20. 

    This moves the cursor backward in the currently displayed command without deleting characters

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Left arrow or Ctr-B
    Explanation
    The left arrow or Ctrl-B moves the cursor backward in the currently displayed command without deleting characters.

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  • 21. 

    You would use ________ cable to connect to the Cisco switch

    • RJ-45 Ethernet

    • RJ-45 crossover

    • RJ-48 straight through

    • UTP rolled cable

    Correct Answer
    A. UTP rolled cable
    Explanation
    Rolled and rollover cables are the same

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  • 22. 

    When you type copy startup running, the content of the startup configuration will

    • Be copied to the content of the running configuration

    • Replace the content of the running configuration

    • Merge with the content of the running configuration

    Correct Answer
    A. Merge with the content of the running configuration
    Explanation
    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.

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  • 23. 

    This moves the cursor directly to the first character of the currently displayed command.

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Ctrl-A
    Explanation
    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.

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  • 24. 

    Switch status from LED - SYST (system) - Implies the overall system status. Light off means the switch is not powered on.  Light is on means the switch is powered on and operational (Cisco IOS has been loaded). What if the light is ON but has AMBER colour?

    • Indicates the switch is not forwarding frames

    • Switch is on but Cisco IOS did not load

    • POST failed and Cisco IOS did not load

    • Cable connected to the switch is wrong or broken

    • Device connected to the switch is turned off or broken

    Correct Answer
    A. POST failed and Cisco IOS did not load
    Explanation
    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.

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  • 25. 

    Moves forward 1 word

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Esc-F
    Explanation
    Pressing the Esc-F key combination moves the cursor forward one word.

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  • 26. 

    To resume the SETUP MODE or INITIAL CONFIGURATION MODE, you would

    • Power on and off the switch, pray that the initial configuration mode comes up

    • Type setup under PRIVILEDGE mode

    • Type setup under CONFIGURATION mode

    • Type reload and setup mode will resume after switch reboots

    Correct Answer
    A. Type setup under PRIVILEDGE mode
    Explanation
    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)

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  • 27. 

    Moves back 1 word

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Esc-B
    Explanation
    Pressing Esc-B moves the cursor back one word.

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  • 28. 

    If you have gone too far back into the history buffer, these keys take you forward to the more recently entered commands. 

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Down arrow or Ctrl-N
    Explanation
    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.

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  • 29. 

    Deletes a single character

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Ctrl-D
    Explanation
    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.

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  • 30. 
    After entering those commands, when a user tries to access to switch using SSH, what password will he/she has to use? - ProProfs

    After entering those commands, when a user tries to access to switch using SSH, what password will he/she has to use?

    • Password

    • Login

    • Love

    • SSH is not enabled because SSH password was not set

    • Impossible because a username was not set

    Correct Answer
    A. Impossible because a username was not set
    Explanation
    SSH requires both username and password to be set. Telnet only requires a password

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  • 31. 

    This gets you back to your command line with all characters. This is useful when messages clutter the screen.

    • Esc-B

    • Ctrl-R

    • Backspace

    • Right arrow or Ctrl-F

    • Ctrl-E

    • Ctrl-A

    • Up arrow or CTRL-P

    • Left arrow or Ctr-B

    • Ctrl-D

    • Down arrow or Ctrl-N

    • Esc-F

    Correct Answer
    A. Ctrl-R
    Explanation
    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.

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  • 32. 

    (3) commands to erase the content of NVRAM

    • Delete startup-config

    • Erase startup-config

    • Write erase

    • Erase NVRAM

    • Delete NVRAM

    • Copy running-config startup-config

    Correct Answer(s)
    A. Erase startup-config
    A. Write erase
    A. Erase NVRAM
    Explanation
    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.

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  • 33. 

    Switch status from LED - the SPEED LED. Pick the answer(s) that are correct to the corresponding color and description

    • Dark LED - 10 Mbps

    • Green - 100 Mbps

    • Green (Solid) - 100 Mbps

    • Green - 1000 Mbps

    • Green (Flashing) - 1000 Mbps

    • Blue - 1000 Mbps

    Correct Answer(s)
    A. Dark LED - 10 Mbps
    A. Green (Solid) - 100 Mbps
    A. Green (Flashing) - 1000 Mbps
    Explanation
    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.

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  • 34. 

    The difference(s) between using Telnet and SSH to remotely access a SWITCH's CLI is/are

    • Telnet uses port TCP port 23 while SSH uses TCP port 22

    • SSH encrypts data while Telnet does not

    • Telnet requires rollover cable while SSH requires console cable

    • Telnet requires an IP to access the switch but SSH requires an IP and MAC address for security purposes

    • Telnet requires a telnet password set up from the switch while SSH requires a console password

    • Telnet and SSH requires a vty password set up from the switch

    Correct Answer(s)
    A. Telnet uses port TCP port 23 while SSH uses TCP port 22
    A. SSH encrypts data while Telnet does not
    Explanation
    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)

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  • 35. 

    You enable debugging on a switch. For example I want to debug ICMP packet switch# debug IP ICMP To stop debugging, I would 

    • Type no debug IP ICMP

    • Type no debug all

    • Type undebug all

    • Reload the switch

    Correct Answer(s)
    A. Type no debug IP ICMP
    A. Type no debug all
    A. Type undebug all
    A. Reload the switch
    Explanation
    All of these are valid options

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  • 36. 

    The default console port setting on a switch are as follow

    • 9600 bps

    • 9600 Bps

    • No parity bits

    • No flow control

    • 16-bit Cisco IOS

    • No hardware flow control

    • 1 stop bit

    • 8-bit ASCII

    • COM port

    Correct Answer(s)
    A. 9600 bps
    A. No parity bits
    A. No hardware flow control
    A. 1 stop bit
    A. 8-bit ASCII
    Explanation
    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.

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  • 37. 

    Switch status from LED - the PORT LED. Pick the answer(s) that are correct to the corresponding color and description

    • OFF - The link is not working

    • Solid GREEN - link is working

    • Solid GREEN - link is working but there is no traffic

    • RED - The link is not working

    • AMBER - Link is on but interface is administratively disabled

    • GREEN (flashing) - link is working and traffic is passing through

    • AMBER (flashing) - Link is on but interface is administratively disabled

    Correct Answer(s)
    A. OFF - The link is not working
    A. Solid GREEN - link is working but there is no traffic
    A. GREEN (flashing) - link is working and traffic is passing through
    A. AMBER (flashing) - Link is on but interface is administratively disabled
    Explanation
    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.

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Quiz Review Timeline (Updated): Sep 4, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Sep 04, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 25, 2011
    Quiz Created by
    Squirrelonfire

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