Building Ancillary Systems: Security, Fire & Access

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Questions and Answers

What primary function did early enterprise backbones, mainly composed of multiplexers, serve?

Aggregating and transporting all data signals to and from users throughout the enterprise. (correct)
Providing direct connections between individual workstations and wiring closets.
Facilitating floor-to-floor or building-to-building connectivity using high-speed routers.
Establishing a ring topology for efficient data transfer, similar to FDDI networks.

In a modern enterprise network, what role does the 'horizontal access portion' primarily fulfill?

Connecting individual workstations to wiring closets. (correct)
Forming the high-speed data path for all enterprise communications.
Managing floor-to-floor connectivity between different departments.
Implementing a collapsed backbone architecture using ATM switches.

Which of the following technologies is commonly associated with LAN backbones used in enterprise networks?

ATM switches in collapsed backbone architectures.
PBX systems for voice communication.
Intelligent cabling hubs for workstation connections.
FDDI (Fiber Distributed Data Interface). (correct)

What is a key characteristic of a 'collapsed backbone' topology in enterprise network design?

It centralizes network traffic through high-speed routers and switches. (B) Signup and view all the answers

Which backbone topology is most closely associated with switch-based networks and PBX systems?

Star (A) Signup and view all the answers

Which scenario is best suited for utilizing a mesh network topology?

A large industrial facility with multiple interconnected systems and high redundancy needs. (A) Signup and view all the answers

What advantage does fiber optics provide in a backbone network regarding the integration of different types of signals?

It allows data, voice, and video signals to be combined over a single fiber pair. (D) Signup and view all the answers

What is a key benefit of implementing fiber optics in a network backbone concerning future technology upgrades?

Enables the network to easily migrate to improved technologies. (B) Signup and view all the answers

Which of the following is the most significant advantage of using fiber optics in a network backbone with respect to bandwidth?

Fiber optics offer very large bandwidth, supporting a high number of users and diverse applications. (B) Signup and view all the answers

An organization wants to upgrade its network backbone to support increasing data transfer requirements and ensure secure data transmission. Which technology should it choose?

Fiber optics (B) Signup and view all the answers

What is the most important role of fiber optics in the evolution and future-proofing of network backbones?

It forms a base for all future backbone migrations and adaptability. (D) Signup and view all the answers

A hospital needs to transmit high-resolution chest X-ray images and remote query bursts over its network. What bandwidth capacity should the network support to accommodate these applications?

4 - 40 Mbps (A) Signup and view all the answers

An enterprise is looking to create an efficient and cost-effective backbone capable of handling data, voice, and video signals. Which solution aligns with this strategy?

Establishing an integrated communication path supported by fiber optics. (D) Signup and view all the answers

Which of the following is NOT a typical characteristic of structured wiring?

Cable selection dependent on the end-user equipment vendor. (C) Signup and view all the answers

What is the primary function of a wiring closet in a structured cabling system?

To act as a central distribution point for connecting horizontal cabling to the backbone on a single floor. (A) Signup and view all the answers

Which of the following is the most important consideration when evaluating network topologies?

Network performance, scalability, and cost of administration. (B) Signup and view all the answers

What is the primary role of backbone cabling in a structured network?

Interconnecting equipment rooms and telecommunication closets, often spanning multiple floors. (B) Signup and view all the answers

Which of the following describes horizontal cabling?

Connects the Backbone to Wall Outlets on a single floor. (D) Signup and view all the answers

An organization needs to expand its network to support a growing number of employees. Which aspect of network topology becomes MOST critical?

Scalability (A) Signup and view all the answers

What is the purpose of structured wiring within a building?

Support all forms of information transfer. (D) Signup and view all the answers

Which element of network topology would be most affected by frequent office reconfigurations?

Horizontal cabling. (B) Signup and view all the answers

What is the role of an Equipment Room (ER) in structured cabling?

To serve as a termination point for external cables and connect to the Internal Distribution Cable. (A) Signup and view all the answers

What is the function of cross-connect hardware in an Equipment Room (ER)?

Connects ER to Internal Distribution Cable. (D) Signup and view all the answers

Which factor does NOT significantly influence the complexity of auxiliary systems in a building?

Prevailing political climate of the region. (D) Signup and view all the answers

What is the PRIMARY function of an Access Control System within a building's auxiliary systems?

To regulate and monitor who can enter, exit, and where within a building. (B) Signup and view all the answers

In a structured cabling system, what configuration is predominantly used for running cables?

Star configuration, with each device connected to a central point. (B) Signup and view all the answers

What is the main difference between a Closed Circuit Television (CCTV) system and regular television broadcasting?

CCTV transmits signals to a limited number of monitors, while regular TV broadcasts to the public. (D) Signup and view all the answers

What is the PRIMARY function of a Fire Detection and Alarm System (FDAS)?

To detect fires and alert building occupants and managers, potentially prompting evacuation. (C) Signup and view all the answers

Which of the following best describes the role of a Building Management System (BMS)?

A computer-based control system for monitoring and controlling a building's mechanical and electrical equipment. (A) Signup and view all the answers

What benefit does zoning provide in a Background Music System?

It allows for adjusting volume levels to suit the specific needs of each area. (B) Signup and view all the answers

What is the purpose of Unshielded Twisted Pair (UTP) copper in structured cabling systems?

To provide service to individual computers and network closets. (C) Signup and view all the answers

What considerations should be made when planning the quantity of cables to install in a structured cabling system?

Run at least two cables to every outlet, and more between network closets. (C) Signup and view all the answers

What is the role of a Public Address System (PAS)?

To increase the volume of audio sources, like voices or music. (D) Signup and view all the answers

Which of the following best describes the function of a cross-connect in structured cabling?

Enabling the termination and interconnection of cable elements, often using patch cords or jumpers. (A) Signup and view all the answers

In a structured cabling system, what is the primary role of the 'horizontal cabling'?

Providing the wiring between the telecommunications outlet and the horizontal cross-connect. (A) Signup and view all the answers

What is the key advantage of a structured backbone compared to an unstructured backbone?

Enhanced network control, reliability, and efficiency through a hierarchical design. (A) Signup and view all the answers

Which of the following environments would most benefit from a structured cabling system's high degree of upgrade-ability?

A data center requiring seamless implementation of higher performance hardware and software. (B) Signup and view all the answers

What is the purpose of the 'equipment room' in structured cabling?

To house telecommunications equipment serving the building's occupants. (B) Signup and view all the answers

A company is experiencing frequent network downtime due to poorly managed cables. How would implementing a structured cabling system address this issue?

By providing a standardized and organized approach to cable management, improving reliability. (C) Signup and view all the answers

In a scenario where a business needs to quickly relocate several employees and their network connections, which feature of structured cabling would be most beneficial?

Its standardized design, which simplifies moves, adds, and changes. (C) Signup and view all the answers

What is the most accurate description of the telecommunications closet's function within a structured cabling system?

A space for housing telecom equipment, cable terminations, and cross-connect cabling between backbone and horizontal facilities. (C) Signup and view all the answers

Which of the following is the most direct benefit of using a structured backbone in a mission-critical application?

Enhanced reliability and security, which are mandatory for such applications. (B) Signup and view all the answers

What distinguishes the 'main cross-connect' from other cross-connects in a structured cabling system?

It interconnects 1st and 2nd level backbone cables, entrance cables, and equipment cables. (A) Signup and view all the answers

What is the recommended minimum number of multimode and single mode fibers to run from the core to each building in a star configuration?

6 multimode and 6 single mode (D) Signup and view all the answers

In a structured network, which layer is responsible for providing policy-based network access to the workgroup and where packet manipulation often occurs?

Distribution Layer (A) Signup and view all the answers

For runs exceeding 300 meters, which fiber optic cables should be installed?

Both single mode and multimode fiber (A) Signup and view all the answers

Which of the following best describes the physical topology of a structured network?

A hierarchical tree, with the backbone at the root (D) Signup and view all the answers

What is the maximum recommended distance between pull points when installing fiber optic cable in underground conduit, and how is this distance affected by bends in the conduit?

200m, reduced by 50m for every 90-degree bend (B) Signup and view all the answers

Why is labeling cables important in network installations?

To reduce work during maintenance and troubleshooting. (C) Signup and view all the answers

What is the primary reason for using armored outdoor cabling between buildings?

To protect against rodent damage. (B) Signup and view all the answers

What is the main purpose of the backbone layer in a logically structured network?

To provide high-speed data transport between workgroups. (D) Signup and view all the answers

What is the result of daisy chaining when installing cabling?

Increased points of failure (B) Signup and view all the answers

Which organization jointly issued the EIA/TIA-568 Structured Cabling Standards

The Electronic Industries Association and the Telecommunications Industry Association (A) Signup and view all the answers

What are the main advantages of structured backbone solutions in large networks?

Flexibility, scalability, troubleshooting, manageability, and performance. (B) Signup and view all the answers

In fiber optic cabling, what is the typical limitation of multimode fiber concerning distance and data rate?

Limited to 2km at 100 Mbps (D) Signup and view all the answers

When should outdoor cabling specifically be used?

For connections between different buildings (A) Signup and view all the answers

What consideration should be taken when running fiber cables in underground conduits?

Reducing the distance between pull points for every 90 degrees of bend (B) Signup and view all the answers

Which of the following is NOT a consideration in a cabling plan?

Color of cable jackets (D) Signup and view all the answers

Flashcards

Building Services

Electrical systems like ventilation, lighting, and fire systems that enhance functionality.

CCTV

Closed Circuit Television, a surveillance system transmitting to limited monitors.