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| Section | Objectives |
|---|---|
| Topic 1: Sustainable IT and Networking | - Lifecycle and circular economy in technology
|
| Topic 2: Corporate Sustainability Practices | - Cisco sustainability initiatives
|
| Topic 3: Environmental Sustainability Foundations | - Sustainability principles
|
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NEW QUESTION # 51
How does Cisco approach evolving to a circular business model?
Answer: D
Explanation:
The correct answer is B. designing products and packaging to enable reuse, minimize environmental impacts, and drive innovation, because Cisco's circular business transformation emphasizes sustainability throughout the entire product lifecycle.
Cisco's official Circular Design documentation establishes five design principles: material use, standardization and modularization, packaging and accessories, smart energy consumption, and disassembly, repair, and reuse.
Cisco
These principles help reduce resource consumption, improve product energy efficiency, and facilitate equipment recovery and refurbishment.
For example, modular networking equipment allows certain components to be replaced or upgraded independently, potentially extending product lifespans and reducing unnecessary hardware replacement.
Cisco also incorporates post-consumer recycled materials into selected products and packaging, reduces unnecessary accessories, and designs systems for improved serviceability.
Circularity extends beyond initial manufacturing to include product maintenance, reuse, remanufacturing, responsible recycling, and alternative consumption models.
In October 2025, Cisco announced that it had achieved its goal of incorporating Circular Design Principles into 100% of applicable new products and packaging by the end of fiscal 2025.
newsroom.cisco.com
Option A disregards lifecycle management. Option C promotes dependence on virgin materials, contrary to circular resource efficiency. Option D retains a linear take-make-dispose structure rather than preserving material value.
Cisco's circular approach therefore integrates environmental responsibility with engineering innovation and long-term customer value.
Reference: Cisco Environmental Sustainability Course Guide, Paving the Way - Circular Business Model.
Cisco, Circular Design; Cisco's Circular Design Goal: Our Journey to 100%, October 2025.
NEW QUESTION # 52
According to the United Nations, what role does biodiversity play, and why is it important for businesses and communities?
Answer: B
Explanation:
The correct answer is C, because biodiversity represents the variety of living organisms and ecosystems that sustain human life, support economic development, and contribute to environmental stability.
The United Nations describes biodiversity as:
the web of life that we depend on for so many things
United Nations
Biodiversity includes genetic diversity, species diversity, and ecosystem diversity, all of which contribute to ecological resilience and essential environmental processes.
Healthy ecosystems provide food, clean drinking water, medicines, natural resources, pollination, and climate regulation.
Forests, wetlands, oceans, and other natural ecosystems also function as carbon sinks, absorbing atmospheric carbon dioxide and helping mitigate climate change.
According to the United Nations, more than half of global gross domestic product depends on nature, highlighting the importance of ecosystem services to economic activity.
Businesses rely on biodiversity through agricultural supply chains, water availability, raw material production, and environmental risk management.
Cisco's sustainability strategy recognizes these dependencies through its resilient ecosystems priority, which includes responsible water stewardship and investments in climate solutions.
Option A incorrectly minimizes biodiversity's contribution to climate stability. Option B focuses exclusively on raw materials, while Option D identifies only recreational benefits.
Neither reflects biodiversity's comprehensive ecological and economic importance.
Reference: Cisco Environmental Sustainability Course Guide, Defining Sustainability - Sustainability Principles and Environmental Dependencies. United Nations, Biodiversity: Our Strongest Natural Defense Against Climate Change; Cisco, Energy and Sustainability Strategy.
Cisco Purpose Reporting Hub
NEW QUESTION # 53
Among technology professionals globally, which percentage see sustainability as a top business priority?
Answer: C
Explanation:
The correct answer is B. 64%, reflecting the increasing importance of environmental sustainability as a strategic business priority among technology professionals worldwide.
According to the IDC white paper Sustainability: From Compliance and Risk Management to Creating Business Value, sponsored by Cisco and published in May 2023, 64% of global survey respondents considered sustainability a very or extremely important business priority.
The study surveyed 1,244 organizations worldwide, focusing on technology leaders and professionals involved in organizational sustainability initiatives.
The report states:
While 64% of survey respondents worldwide view sustainability as a very or extremely important business priority Cisco This finding demonstrates that environmental sustainability has evolved beyond regulatory compliance into a significant driver of operational efficiency, innovation, and competitive differentiation.
Technology professionals contribute by implementing energy-efficient networking infrastructure, optimizing data center operations, monitoring energy consumption, managing electronic waste, and deploying digital solutions that support decarbonization.
However, identifying sustainability as a priority does not automatically indicate operational maturity. The same IDC study found that approximately half of respondents were still in the earliest stages of developing comprehensive sustainability strategies.
This distinction highlights the opportunity for Cisco partners to translate sustainability commitments into measurable business outcomes through technology modernization and sustainable infrastructure solutions.
Reference: Cisco Environmental Sustainability Fundamentals (700-242), Section 1.0, Defining Sustainability, Topics 1.1 and 1.2. IDC, Sustainability: From Compliance and Risk Management to Creating Business Value, May 2023, page 8, Figure 5.
NEW QUESTION # 54
What role do PoE systems serve in Cisco energy-efficiency solutions?
Answer: C
Explanation:
The correct answer is C. They enable more efficient energy delivery, because Power over Ethernet (PoE) technology integrates electrical power delivery and network data transmission over a common Ethernet cable.
According to Cisco's official PoE documentation, the technology allows Ethernet cables to deliver direct current (DC) power to connected devices, eliminating the requirement for separate electrical power supplies and outlets in many deployments.
Cisco
PoE is widely used with wireless access points, IP telephones, network cameras, intelligent lighting, and building automation equipment.
Cisco Catalyst switches function as power sourcing equipment (PSE), delivering power to compatible powered devices (PDs) according to their supported PoE standards and power requirements.
Centralized power distribution can simplify infrastructure management, reduce the need for separate adapters, and enable administrators to monitor and control device power allocation.
Cisco's Universal Power over Ethernet technologies also support smart buildings, where integrated lighting, occupancy sensing, and automated controls can improve operational energy efficiency.
However, PoE does not eliminate electrical losses. Its overall efficiency depends on power conversion, cable resistance, equipment selection, and power-management configuration.
Option A describes a potential application involving PoE-powered environmental sensors rather than PoE's fundamental function. Options B and D do not represent its intended energy-management benefits.
Reference: Cisco Environmental Sustainability Course Guide, Building a Sustainable Future - Cisco Solutions for Energy Efficiency. Cisco, What Is Power over Ethernet?; PoE Configuration Guide, September
2025.
PoE Configuration Guide - Cisco
NEW QUESTION # 55
What is a greenhouse gas?
Answer: A
Explanation:
The correct answer is B. carbon dioxide (CO#), a major greenhouse gas that contributes to Earth's natural greenhouse effect and anthropogenic climate change.
Greenhouse gases are atmospheric substances capable of absorbing and re-emitting infrared radiation emitted by Earth's surface. This process reduces the rate at which thermal energy escapes into space and influences global temperatures.
According to the United States Environmental Protection Agency (EPA), major greenhouse gases include carbon dioxide, methane (CH#), nitrous oxide (N#O), and certain synthetic fluorinated gases.
US EPA
Carbon dioxide enters the atmosphere through natural processes such as respiration and volcanic activity, as well as human activities including fossil fuel combustion, industrial manufacturing, and deforestation.
Among the available options, helium and nitrogen are not significant greenhouse gases because their molecular structures do not support substantial absorption of terrestrial infrared radiation. Butane is a hydrocarbon capable of infrared absorption, but it is not conventionally classified among the principal greenhouse gases used in emissions accounting.
Within Cisco's Environmental Sustainability curriculum, understanding greenhouse gases provides the technical foundation for evaluating carbon footprints, greenhouse gas emissions inventories, and net-zero strategies.
Organizations quantify emissions using carbon dioxide equivalent (CO#e), which allows different greenhouse gases to be expressed using a common climate-impact metric.
Reference: Cisco Environmental Sustainability Fundamentals (700-242), Section 1.0, Defining Sustainability,
NEW QUESTION # 56
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