An engineer asks a technician to verify that a Cisco switch port is connected to a device that is powered on. The technician sees the port LED is solid green. What should the technician report?

The device is powered off because the LED is not blinking.

The device is powered on because the LED is green.

The link is established, which usually means the connected device is powered on.

The device is in a low-power sleep mode because the LED is solid.

You are instructed to find a port on a Cisco switch that is connected to a device that is powered off. What LED state should you expect to see on that port?

Solid green, because the port is still enabled.

Blinking green, because the port is trying to establish a link.

Off, because the device is powered off and there is no link.

Amber, because the port is in a fault state.

A Cisco switch port is connected to a device that is powered on, but the link LED is off. You have verified that the port is administratively up and the cable is good. What is the most likely cause?

The switch port is configured for a different speed than the device.

The switch port is in a spanning-tree blocking state.

The switch port's LED is broken.

The connected device's NIC is not transmitting a link signal, possibly due to a disabled NIC or a driver issue.

An engineer asks a technician to confirm that a Cisco switch port is not passing any traffic. The technician observes the port LED is solid green. What should the technician conclude?

The port has a link, but the LED does not confirm whether traffic is passing.

The port is definitely not passing traffic because the LED is not blinking.

The port is definitely passing traffic because the LED is on.

The port is in an error state and the LED is stuck green.

A Cisco switch port is connected to a device that is powered on, but the link LED is off. You have tested the cable with a cable tester and it passes. What is the most likely next step?

Replace the switch port module, because the LED is broken.

Check whether the port is administratively down or disabled in the switch configuration.

Replace the device's NIC, because it is not transmitting a link signal.

Reboot the switch, because the port is stuck.

CiscoCertified Support Technician (CCST) Networking

Domain 4Objective 1

4.1. Identify the Status Lights on a Cisco Device When Given Instruction by an Engineer. 100-150 Practice Questions (Page 3)

Part of the Infrastructure domain, which makes up ~18% of our current practice bank. Cisco does not publish an official question count, but from its 50-minute exam (~20–35 total, ~4–6 in this domain), expect 1–1 from this objective — we provide 29 practice questions to prepare you well beyond it. (estimate)

29questions here

6free pages

3concepts

Questions 11–15

11application · medium
An engineer asks a technician to verify that a Cisco switch port is connected to a device that is powered on. The technician sees the port LED is solid green. What should the technician report?
Select an answer first
12application · easy
You are instructed to find a port on a Cisco switch that is connected to a device that is powered off. What LED state should you expect to see on that port?
Select an answer first
13expert · medium
A Cisco switch port is connected to a device that is powered on, but the link LED is off. You have verified that the port is administratively up and the cable is good. What is the most likely cause?
Select an answer first
14application · medium
An engineer asks a technician to confirm that a Cisco switch port is not passing any traffic. The technician observes the port LED is solid green. What should the technician conclude?
Select an answer first
15expert · medium
A Cisco switch port is connected to a device that is powered on, but the link LED is off. You have tested the cable with a cable tester and it passes. What is the most likely next step?
Select an answer first

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