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Cisco Supporting Cisco Devices for Field Technicians 800-150 FLDTEC Exam Questions
Question 1
Refer to the exhibit.
Refer to the exhibit. Which CLI show command identifies the serial number on a router?
Answer : A
The show inventory command is used on Cisco devices to display detailed information about the hardware components installed, including:
Product Identifier (PID)
Serial Number (SN)
Description of the component
In the exhibit, the output clearly shows:
NAME: 'Chassis', DESCR: 'Cisco ISR4451-X/K9'
PID: ISR4451-X/K9, VID: V01, SN: FCW2134L0SH
This confirms that show inventory is the correct command to retrieve the serial number and hardware inventory details.
show version provides some system information and sometimes includes serial numbers, but it's not as reliable or detailed for component-level hardware info.
show idprom is not commonly used and not supported on all platforms.
show platform provides platform-specific info but not typically the serial number.
Question 2
What is the first action that must be taken before removing a standby supervisor module from a Cisco MDS 9700 Series Switch?
Answer : B
In the FLDTEC course, the process for removing or replacing a supervisor module --- especially the standby supervisor --- in a modular switch like the Cisco MDS 9700 is clearly outlined. Cisco documentation states:
'Before removing a standby supervisor module, it must first be placed into out-of-service mode using the CLI command system no supervisor <slot-number> or via the appropriate management interface.'
This action ensures the system acknowledges the supervisor is no longer participating in redundancy, allowing a safe and controlled removal without impacting system operations.
Why not the other options?
A . Shut down the entire switch Not required; MDS switches are built for high availability and allow hot-swap operations.
C . Disconnect all network interface cables This applies to line cards or interfaces, not to supervisor removal specifically.
D . Perform a manual failover Failover is required when removing the active supervisor, not the standby one.
Question 3
Which function does the Stack Port 1 serve on a Cisco Meraki switch?
Answer : B
On Cisco Meraki switches, Stack Port 1 (along with Stack Port 2) is used to form a physical stacking connection between multiple switches. These stack ports are dedicated high-speed interconnects that enable multiple switches to operate as a single logical switch.
The stacking topology depends on the number of switches, but Stack Port 1 serves as one side of this high-speed inter-switch communication channel --- not for management or cloud access.
Question 4
Which layer of the OSI model provides error detection and defines how access to the media is controlled?
Answer : D
The Data Link Layer (Layer 2) of the OSI model is responsible for node-to-node data transfer and plays a crucial role in error detection and media access control. It ensures that data frames are transmitted to the correct device on a local network segment.
This layer is divided into two sublayers:
Logical Link Control (LLC): Manages frame synchronization, flow control, and error checking.
Media Access Control (MAC): Controls how devices on the network gain access to the medium and permission to transmit data.
Together, these sublayers ensure reliable data transmission by detecting and possibly correcting errors that may occur in the Physical Layer. They also manage how devices share the transmission medium, preventing collisions and ensuring orderly communication.
Question 5
What is the recommended resistance value range to ensure proper grounding when using an antistatic strap to perform work on electrical components?
Answer : B
The ideal resistance range for ESD wrist straps is between 1 and 10 megaohms. This range is sufficient to safely discharge static electricity from the technician to ground, while not allowing an abrupt discharge that could damage sensitive electronic components.
Values below 1 megaohm may result in a rapid discharge, risking damage.
Values above 10 megaohms may not discharge static efficiently enough.
Question 6
What is the purpose of the pre-service checklist in the endpoint replacement process?
Answer : A
A pre-service checklist is a procedural step followed before replacing an endpoint. Its primary purpose is to confirm that all resources, tools, documentation, and personnel are in place to execute the replacement efficiently and without delays.
It helps avoid service interruptions and ensures a smooth replacement by ensuring that every necessary component and action is accounted for ahead of time.
Question 7
Which step must be taken to minimize data traffic impact when replacing a fabric interconnect?
Answer : A
When replacing a fabric interconnect in a Cisco Unified Computing System (UCS), the recommended procedure to minimize traffic disruption is to use the fabric evacuation procedure on the subordinate fabric interconnect. This ensures that traffic is redirected to the other (active) fabric interconnect, allowing the system to maintain connectivity while one interconnect is replaced.
High availability should remain enabled to preserve redundancy.
Powering down both interconnects would cause a complete outage.
Disconnecting cables without graceful evacuation can result in traffic loss.
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