800-150 Exam Dumps : Supporting Cisco Devices for Field Technicians (FLDTEC)

Cisco Unified Communications Manager (CUCM) is typically deployed onCisco UCS C-Series servers. These rack-mount servers provide the necessary computing resources to support CUCM's call control and session management functions in enterprise environments. The UCS C-Series servers offer scalability, reliability, and integration capabilities essential for unified communications deployments.​

Options A (Cisco ASR routers), B (Cisco Catalyst switches), and C (Cisco ISR routers) are networking devices designed for routing and switching functions and are not intended as platforms for deploying CUCM.​

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 to0x2142. 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.​

TheFLDTECtraining describes theTCP/IP encapsulationas a step-by-step process where data is passed down through the layers of the TCP/IP model:

Application Layer: User data is created (email, file, request) and the application layeradds the application header, creating a data payload.

Transport Layer: The data is segmented. Each segment receives a transport-layer header (TCP/UDP), enabling proper sequencing and error handling at the destination.

Internet Layer: Segments are encapsulated intopackets(IP datagrams), with an IPheader added to facilitate routing between networks.

Link Layer: Finally, packets are framed with Layer 2 headers and trailers (including theFrame Check Sequencefor error detection), creating aframeready to be transmitted on the physical medium.

This layered encapsulation ensuresinteroperabilityandtroubleshooting clarity, which is why it is emphasized inFLDTEC’s IOS Software Basics module.