Pass the Cisco Certified Field Technician (CCT) 800-150 Questions and answers with ExamsMirror

In theFLDTEC course, the process for removing or replacing asupervisor module— especially thestandbysupervisor— in a modular switch like theCisco MDS 9700is 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 systemacknowledges 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 requiredwhen removing the active supervisor, not the standby one.

The highlighted components in all three Cisco UCS server models (5108 B-Series Blade Server Chassis, X9508 X Series Modular Server Chassis, and C225 M6 Rack Server) are fan modules, which are field-replaceable units responsible for cooling the system.

The highlighted components in the images correspond tocooling fans— these are essential for maintaining optimal thermal conditions within each Cisco UCS server type.Here's a breakdown of what's visible in each:

Cisco UCS 5108 B-Series Blade Server Chassis: The highlighted vertical rectangular components arefan modules, which provide high-efficiency airflow for the densely packed blades.

Cisco UCS X9508 X-Series Modular Server Chassis: The front-facingfan traysare clearly marked, used to cool the modular nodes and shared infrastructure.

Cisco UCS C225 M6 Rack Server: The highlighted components on the side of the motherboard are alsofan modules, directly responsible for cooling the CPU, memory, and other internal components.

These fans arefield-replaceable units (FRUs)and are routinely accessed by technicians during preventive maintenance or fault replacement.

Before installing or replacingDIMMs (Dual In-line Memory Modules)in a Cisco UCS server, it is essential to verify thecurrent DIMM configuration and the population order. Cisco UCS servers have strict memory population rules to ensure optimal performance and compatibility, particularly in relation to memory channels and banks.

While the type, capacity, and firmware compatibility are important, failing to follow the correct population guidelines can result in failed boot processes or suboptimal performance.

Inability to manage or control switch functions → Supervisor module

Failure to maintain optimal temperatures → Fan module

Loss of connectivity on specific ports → Line card

Inability to establish fiber optic connections → Transceivers

Degraded internal data transfer between line cards → Fabric module

From theFLDTEC training materials, Cisco MDS switches are built for high availability and redundancy, but field technicians must know which component impacts whatfunction:

Supervisor Module: Manages control plane functions — a failure results in loss of system-level management or redundancy.

Fan Module: Essential for cooling — failure here leads to overheating and thermal alarms.

Line Card: Provides connectivity — port failures or loss of interface status originate from faulty line cards.

Transceivers (SFP/QSFP modules): Responsible for optical transmission — failure leads to fiber optic link issues.

Fabric Module: Critical for switching between line cards — its failure leads to degraded or disrupted internal traffic paths.

These mappings help techniciansisolate the source of faultsand proceed with the correctRMA or replacementprocedure.

When connectingtwo devices of the same type(e.g., two routers, two switches, or two DTEs), acrossover cableis required. This cable swaps the transmit and receive pairs to allow direct communication between devices without the need for an intermediate device like a switch.

Straight-through cablesare used to connect different types of devices (e.g., PC to switch).

Rolled cablesare used for console access.

USB Type A to Bcables are typically used for peripheral device connections, not networking.

In a local area network (LAN), the primary function of aswitch is to operate at Layer 2 (Data Link Layer) of the OSI model. Switches use MAC addresses to forward frames to the appropriate destination ports. This targeted forwarding mechanism divides the network into separate collision domains for each switch port. By isolating collision domains, switches significantly reduce the chance of collisions, enhancing the performance and efficiency of the network.

Unlike hubs, which forward all traffic to all ports (thus creating a single collision domain), switches intelligently forward only the necessary traffic to the correct port. This capability allows multiple simultaneous conversations on different switch ports without interference.

Routers, which operate at Layer 3 (Network Layer), are used to route packets between different networks, not within the same LAN. Wireless connectivity is provided by wireless access points (WAPs), not switches. Encryption is typically handled by security protocols or devices such as firewalls and not by switches directly.

When configuring a terminal emulator (such as PuTTY, Tera Term, or HyperTerminal) to connect to the console port of a Cisco switch, the standard settings are as follows:​

Speed (baud rate): 9600This is the default transmission speed for Cisco console ports, ensuring compatibility across various devices.​

Data bits: 8This setting specifies that each character transmitted consists of 8 data bits, which is standard for most serial communications.​

Parity: NoneNo parity bit is used, meaning there is no additional error-checking bit appended to each character.​

Stop bits: 1One stop bit indicates the end of a character transmission.​

Flow control: NoneNo flow control is employed, allowing continuous data transmission without hardware or software-based pausing.​

Therefore, optionsC (Speed: 9600)andD (Data bits: 8)are correct. Options A (Stop bits: 2), B (Flow control: Hardware), and E (Parity: Even) deviate from the standard settings and may result in communication issues if configured.​

For standalone Cisco Secure Firewall deployments, theCisco Secure Firewall Device Manager (FDM)is the most appropriate management option. FDM is a browser-based, on-box management tool that allows administrators to configure and manage a single firewall device without the need for external management infrastructure. It provides an intuitive interface for basic configurations, policy management, and monitoring.​

In contrast:​

Cisco Secure Firewall Management Center (FMC)is designed for centralized management of multiple firewall devices.

Cisco Defense Orchestrator (CDO)is a cloud-based solution for managing security policies across various devices.

Cisco Security Manageris an older platform primarily used for managing ASA devices.​

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.

After powering off a Cisco device in preparation for chassis replacement, theimmediate next stepis tolabel and remove all I/O cables. This step is crucial to ensure that all connections can be accurately restored after the new chassis is installed.​

Proper labeling prevents confusion and potential misconfigurations during reassembly. Only after all cables are safely disconnected should you proceed to remove the chassis ground and then the chassis itself.​