Cisco Certified Field Technician (CCT) 800-150 Reddit Questions

The Cisco Collaboration Infrastructure is designed to support unified communications, video conferencing, and team collaboration through an integrated architecture involving both hardware (e.g., endpoints, media servers) and software (e.g., CUCM, Webex apps).

According to the FLDTEC course content under Cisco Collaboration Equipment and Infrastructure:

Facilitating Connections (C):

Cisco infrastructure components such as CUCM, Expressway, and Cisco Meeting Server enable real-time connections between users across voice, video, and messaging systems.

Supporting Meeting Experiences (E):

Devices such asWebex Boards, Room Kits, and Cisco Quad Cameras, in combination with platforms like Webex, provide immersive and seamless meeting experiences, supported by the infrastructure.

Incorrect Options:

A. Network bandwidth allocation: Typically managed by network QoS policies and WAN optimizations, not the collaboration infrastructure directly.

B. Hosting large-scale databases: Not a function of Cisco’s collaboration system — this falls under data center or database server roles.

D. Phone book administration: Often a function within directory services or external LDAP integration, not a core collaboration infrastructure task.

In the providedCisco UCS architecture diagram, the infrastructure consists of:

Two Fabric Interconnects (A and B), each connecting to:

Ethernet (LAN)

Fibre Channel (FC)

FCoE (Fibre Channel over Ethernet)

Both Fabric Interconnects are independently connected to bothCisco UCS Chassis 1 and 2through I/O Modules (IOMs).

This is theclassic active-active UCSdesign, providingfull path redundancyfor all traffic types:

LAN uplinksare handled separately by Fabric Interconnect B.

SAN trafficis distributed throughFC uplinksandFCoE uplinksvia Fabric Interconnects A and B.

Each server in the chassis canfail over its traffic to the alternate fabric if one interconnect fails.

This architecture guaranteesno single point of failure, which is essential inmission-critical environmentslike data centers and enterprise server farms.

To ensurehigh availability and fault tolerancein Cisco data center designs, two effective strategies include:

Redundant Supervisor Engines and Fabric Modules: These provide failover capabilities, so if one supervisor or fabric module fails, another can take over, maintaining network operations without interruption.

Virtual Port Channels (vPCs): vPCs allow connections to be made to two physical switches while appearing as one logical switch. This prevents loops and adds redundancy and load balancing, which is critical in high-availability environments.

Other options may enhance performance (e.g., high-density Ethernet) or extend functionality (e.g., FCIP), but do not directly contribute to fault tolerance and high availability in the same way.

When diagnosing network connectivity issues between a Windows PC and a Cisco device, the combination ofipconfig /allandpingcommands provides comprehensive information:​

ipconfig /all:Displays detailed IP configuration information, including IP addresses, subnet masks, default gateways, DNS servers, and MAC addresses for all network adapters. This information is crucial for verifying correct network settings.​

ping:Tests the reachability of a host on an IP network and measures the round-trip time for messages sent from the originating host to a destination computer. It's a fundamental tool for checking connectivity between devices.​

While other commands likenetstat,tracert,nslookup,arp -a, androute printprovide valuable information,ipconfig /allandpingare typically the first and most informative commands used in initial troubleshooting steps.​