Sure Pass Exam 800-150 PDF

The correct sequence for mounting a Cisco device in a rack is:​

Install mounting brackets: Attach the appropriate rack-mount brackets to the sides of the device using the screws provided. This step prepares the device for secure installation in the rack.​

Mount in rack: Carefully place the device into the rack, aligning the brackets with the rack posts, and secure it using the appropriate rack-mount screws.​

Ground the device: After the device is securely mounted, connect the grounding wire to the chassis grounding point and then to the facility ground. This step ensures safety and compliance with electrical standards.​

This sequence is recommended to ensure both the physical security of the device and the safety of personnel during installation.​

Step 1 → Performs power-on self-test (POST)

Step 2 → Loads and runs bootstrap code (firmware)

Step 3 → Finds and loads the Cisco IOS software

Step 4 → Finds and loads the configuration

Step 5 → Runs the configured Cisco IOS software

This startup process is thoroughly described in theFLDTECcourse and alignswith Cisco's standard IOS boot process:

POST (Power-On Self-Test):Verifies hardware functionality including memory and interfaces. This occurs immediately upon powering the device.

Bootstrap Code Execution:Bootstrap is a small program in ROM that initiates the boot process.

Cisco IOS Loading:Bootstrap locates and loads the IOS from flash memory or another source (e.g., TFTP).

Configuration Loading:The router then loads the startup-config from NVRAM (if available).

IOS Execution:Once the configuration is loaded, the device enters operational mode and executes the IOS with the loaded config.

This sequence is vital for field technicians to understand for troubleshooting boot failures or performing device recoveries.

Cisco Webex Callingis a cloud-based, enterprise-grade PBX (Private Branch Exchange) solution designed to provide comprehensive voice communication services via the Webex cloud platform. It enables IP phones and softphones to register to the cloud, allowing for centralized call control, voicemail, and collaboration features without the need for an on-premises call manager.

Cisco Hosted Collaboration Solutionsare partner-hosted services.

Webex Meetingssupports virtual video conferencing.

Webex Teams(now part of Webex App) supports messaging and collaboration, not PBX functionality.

Theserial numberfor Cisco switches is typically found on a label located on therear panel near the power supplies. This positioning allows technicians to quickly access identification information even when the device is not powered on.

This label is essential for inventory tracking, RMA procedures, and registration for support. Serial numbers are not typically placed on the top or bottom surfaces for devices mounted in a rack, as those areas are less accessible.