800-150 Exam Preparation Material | Supporting Cisco Devices for Field Technicians (FLDTEC)

Prepare for the 800-150 with reliable study materials, practice questions, and key exam insights.

Prepare for the 800-150 Supporting Cisco Devices for Field Technicians (FLDTEC) exam with CertQueen's independently developed study resources. Review important concepts, practice scenario-based questions, and use clear explanations to identify areas that require further study.

Question#1

When should a crossover UTP cable be used instead of a straight-through cable when connecting network devices?

A. To connect electrically like devices
B. To connect a PC to a wireless access point
C. To connect a switch to a router
D. To connect electrically unlike devices

Explanation:
A crossover UTP (Unshielded Twisted Pair) cable is used to connect two similar devices directly.
This includes:
Switch to switch
Router to router
PC to PC
The crossover cable reverses the transmit and receive pairs, allowing for proper communication between like devices without the need for an intermediary device.
Conversely, a straight-through cable is used to connect dissimilar devices, such as:
PC to switch
Router to switch
PC to router
This cable maintains the same wiring on both ends, suitable for connecting different types of devices.
Therefore, when connecting electrically like devices, a crossover cable is appropriate.
Reference: Supporting Cisco Devices for Field Technicians (FLDTEC) C Cisco Equipment and Related
Hardware

Question#2

What is the purpose of a subnet mask?

A. Distinguishes the network and host segments
B. Provides encryption for network traffic
C. Determines the next-hop router
D. Aids in route prioritization

Explanation:
A subnet mask is a 32-bit number used in IP networking to divide an IP address into network and host portions. This division is crucial for routing traffic within and between networks. The subnet mask works in tandem with the IP address to identify which part of the address refers to the network and which part refers to the host. This distinction allows for efficient IP address allocation and routing.
For example, in the IP address 192.168.1.10 with a subnet mask of 255.255.255.0, the first three octets (192.168.1) represent the network portion, while the last octet (10) identifies the specific host within that network.
Reference: Supporting Cisco Devices for Field Technicians (FLDTEC) C Cisco IOS Software Basics

Question#3

What is the primary purpose of backing up the endpoint configuration prior to replacing the device?

A. To troubleshoot network connectivity issues
B. To update the firmware of the device
C. To generate a performance report for the old device
D. To restore settings on the new device after replacement

Explanation:
Backing up the configuration of a network device before replacement is a critical step to ensure business continuity and minimize downtime. The primary purpose of this backup is to restore the existing settings onto the new device, ensuring that it operates identically to the one being replaced. This process includes preserving interface configurations, routing protocols, access control lists, and other essential parameters. By restoring the backed-up configuration to the new device, network administrators can quickly reintegrate it into the network infrastructure without the need for manual reconfiguration, thereby reducing the risk of errors and service disruptions.
Options A, B, and C do not align with the primary objective of configuration backups in the context of device replacement.
Reference: Supporting Cisco Devices for Field Technicians (FLDTEC) C Maintenance and RMA Procedures

Question#4

Which two actions are typically performed in ROMMON mode during the password recovery process? (Choose two.)

A. Change the configuration register.
B. Load the startup configuration.
C. Save the configuration.
D. Modify passwords.
E. Reboot the device.

Explanation:
During the password recovery process on Cisco devices, ROMMON (ROM Monitor) mode is utilized to perform specific actions that facilitate the recovery.
Two critical actions typically performed in ROMMON mode are:
Change the Configuration Register: The configuration register is modified to instruct the device to ignore the startup configuration during the next boot. This is commonly achieved by setting the configuration register to 0x2142. This action prevents the device from loading the saved configuration, allowing access without requiring the existing passwords.
Reboot the Device: After changing the configuration register, the device is rebooted to apply the new settings. This reboot enables the device to bypass the startup configuration, facilitating the password recovery process.
These steps are essential in the password recovery procedure, allowing administrators to regain access to the device without erasing the existing configuration.
Reference: Supporting Cisco Devices for Field Technicians (FLDTEC) C Troubleshooting Methodologies

Question#5

Which operating system powers the Cisco Nexus series of switches and is optimized for modern data center deployments?

A. IOS
B. IOS XE
C. IOS XR
D. NX-OS

Explanation:
Cisco NX-OS is the operating system specifically developed for Cisco Nexus series switches, which are widely used in modern data centers. NX-OS is optimized for scalability, high availability, and virtualization features.
It differs from IOS and IOS XE (used in traditional routers and switches) and IOS XR (used in carrier-grade platforms). NX-OS includes advanced features such as Virtual Port Channels (vPC), FabricPath, and integrated Layer 2/3 capabilities tailored for data center networks.
Reference: Supporting Cisco Devices for Field Technicians (FLDTEC) C Cisco IOS Software Basics

Exam Code: 800-150
Q & A: 99 Q&As         Updated:  Oct 08,2026

 

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What This 800-150 Study Resource Helps You Do

Review Key Concepts

Review the technologies, products, processes, and practical skills covered by the current 800-150 exam objectives.

Practice Scenario-Based Questions

Work through independently developed questions designed to strengthen your understanding of technical scenarios and decision-making.

Identify Knowledge Gaps

Use your results and the provided explanations to find weaker areas and focus your study more effectively.

How to Use This 800-150 Preparation Material

Review the Exam Scope

Start by reviewing the topics covered by the 800-150 exam. Compare them with the official exam objectives to understand the required technologies, operational tasks, and practical skills, then identify the areas that deserve the most attention.

Practice Independently

Complete a focused set of practice questions for each topic. On your first attempt, avoid referring to notes, answers, or other study resources so that you can evaluate your current understanding more accurately.

Study the Explanations

Review the answers and explanations after completing each practice session. Understand why the correct option is appropriate for the given scenario and why the other options may be incorrect or less suitable.

Close Knowledge Gaps

Keep track of incorrect answers, unfamiliar concepts, and weaker knowledge areas. Review these topics using official documentation and practical experience, then answer the related questions again to reinforce your understanding and monitor your progress.

Independent 800-150 Preparation Resource

CertQueen independently develops its certification study materials for educational purposes. The practice questions are not copied from, recalled from, or presented as live or official exam questions.

CertQueen is not affiliated with, endorsed by, sponsored by, or authorized by any certification provider. Certification names, exam codes, product names, and related trademarks are the property of their respective owners and are referenced only for identification and educational purposes.

Exam Code: 800-150
Q & A: 99 Q&As
Updated:  Oct 08,2026

 

 Access Complete 800-150 Preparation Material