Networking Today - Module 1 Quiz

Questions and Answers

What are some new areas of focus in the CCNA certification?

IP foundation and security topics (correct)

Automation and network programmability (correct)

Wireless and virtualization (correct)

Virtual reality and gaming

The CCNA certification does not cover security topics.

False

What is the purpose of the Talent Bridge Matching Engine?

To find employment opportunities for Cisco Networking Academy students and alumni.

The two types of network infrastructures are and .

Local Area Networks (LANs), Wide Area Networks (WANs) Signup and view all the answers

Match the different types of internet connections to their categories:

Cable = SOHO Internet DSL = SOHO Internet Dedicated Leased Line = Business Internet Metro Ethernet = Business Internet Satellite = Both SOHO and Business Internet Dial-up Telephone = SOHO Internet Signup and view all the answers

What are the four basic characteristics of network architecture?

Fault Tolerance, Scalability, Quality of Service (QoS), Security Signup and view all the answers

What are the four basic requirements of a reliable network?

Functionality, availability, security, and maintainability. Signup and view all the answers

Which of the following is NOT a characteristic of a Peer-to-Peer network?

Centralized administration Signup and view all the answers

Every computer on a network is called a ______.

host Signup and view all the answers

A WAN connects end devices in a limited area.

False Signup and view all the answers

Match the following types of internet connections with their description:

DSL = High bandwidth internet connection over telephone lines Cable = High bandwidth internet connection offered by TV providers Dial-up = Low bandwidth option using a telephone modem Satellite = Provides internet access to rural areas without ISPs Signup and view all the answers

What is the purpose of intermediary network devices?

They interconnect end devices and manage data flow through a network. Signup and view all the answers

Which of the following examples is considered an end device?

VoIP phone Signup and view all the answers

What is a LAN?

Local Area Network, typically used in homes or small businesses. Signup and view all the answers

What are the four basic characteristics that underlying architectures need to address for reliable networks?

Fault Tolerance Signup and view all the answers

Converged networks can deliver data, voice, and video over the same network infrastructure.

True Signup and view all the answers

What does BYOD stand for?

Bring Your Own Device Signup and view all the answers

A fault tolerant network limits the impact of a failure by limiting the number of affected ___

devices Signup and view all the answers

Which of the following are examples of external threats to network security? (Select all that apply)

Data interception Signup and view all the answers

What is one security solution for home or small office networks?

Antivirus and antispyware software Signup and view all the answers

What are the four types of clouds in cloud computing?

Private Clouds Signup and view all the answers

Quality of Service (QoS) is primarily concerned with ____ traffic.

time-sensitive Signup and view all the answers

Cloud computing allows businesses to store data only in one central location.

False Signup and view all the answers

What does CCNA stand for?

Cisco Certified Network Associate Signup and view all the answers

What is a characteristic of a scalable network?

Can expand quickly and easily Signup and view all the answers

Study Notes

Module Objectives

Understand the impact of networks on daily life.
Describe host and network devices in networking.
Explain network topologies and their representations.
Compare characteristics of various network types.
Discuss LAN and WAN interconnection to the Internet.
Define essential requirements for reliable networks.
Analyze current trends in networking like BYOD and cloud computing.
Recognize basic security threats and solutions in networks.
Explore employment opportunities within the networking sector.

Networks Affect Our Lives

Communication is now as crucial as basic necessities like air and food.
Networks facilitate unprecedented global connectivity and interactions.
A cloud-based human network allows access to data across devices, regardless of location.

Network Components

Host Roles: Each computer on a network acts as a host or end device.
Server Examples: Email servers, web servers, and file servers provide information to clients.
Client Functionality: Clients initiate requests to servers and retrieve information such as web pages or emails.

Peer-to-Peer Networks

Devices can act as both clients and servers in peer-to-peer designs.
Simple to set up and cost-effective but lacks centralized administration, security, and scalability.

End Devices

End devices originate and receive messages, including various types of computers, printers, VoIP phones, cameras, and mobile devices.

Intermediary Network Devices

Essential for interconnecting end devices; includes switches, routers, and firewalls.
Manage data flow, regenerate signals, and monitor network pathways and errors.

Network Media

Different types of media facilitate communication:
- Metal Cables: Use electrical signals.
- Fiber Optic Cables: Utilize light pulses for data transfer.
- Wireless Transmission: Relies on electromagnetic wave modulation.
Factors for media selection include distance, environment, data speed, and cost.

Network Representations and Topologies

Network diagrams illustrate device connections and layouts.
Physical Diagrams: Show actual device locations and cabling.
Logical Diagrams: Describe device connections and address schemes.

Common Types of Networks

Small Home Networks: Link a few devices to the internet.
Small Office/Home Office (SOHO): Connects home or remote computers to a corporate network.
Medium to Large Networks: Involve many interconnected devices for businesses.
Worldwide Networks: Such as the Internet, connect millions globally.

LANs and WANs

Local Area Network (LAN): Covers a small area; maintained by a single organization.
Wide Area Network (WAN): Spans large geographical areas, connecting multiple LANs, often managed by various service providers.

Internet Connections

Many technologies connect users to the Internet:
- Cable: High bandwidth via cable TV infrastructure.
- DSL: Runs over telephone lines, with varied download/upload speeds.
- Cellular: Mobile access via cellular networks.
- Satellite: Useful in rural areas requiring clear satellite access.
- Dial-up: Low bandwidth; less common today.

Business Internet Connections

Requires higher bandwidth and dedicated connections for services:
- Leased Lines: Reserve circuits for secure communication.
- Ethernet WAN/Metro: Extend LAN technology into WAN.
- Satellite: Offers connectivity in areas without wired options.

The Converging Network

Traditional networks required separate infrastructures for data, voice, and video.
Converged Networks: Combine data, voice, and video over a single infrastructure, utilizing uniform standards and protocols.### Reliable Networks
Network Architecture: Technologies that enable data transfer across networks, focused on:
- Fault tolerance
- Scalability
- Quality of Service (QoS)
- Security
Fault Tolerance: Minimizes failure impact by having multiple paths; enhances redundancy using packet-switched networks where data splits into packets that can take different routes.
Scalability: Networks must easily adapt to growth in users and applications while maintaining performance. Designers adhere to standards and protocols to facilitate scalability.
Quality of Service (QoS): Ensures the reliable delivery of time-sensitive content (voice, video). Prioritizes traffic type to manage data flow efficiently and avoids bandwidth shortages.
Network Security: Addressing two main areas:
- Infrastructure security: Protects physical devices and prevents unauthorized access.
- Information security: Ensures data privacy, integrity, and accessibility.

Security Goals

Confidentiality: Limits data access to authorized recipients.
Integrity: Ensures data integrity during transmission.
Availability: Guarantees timely access to data for legitimate users.

Network Trends

Emerging trends: Networks must evolve with these developments:
- Bring Your Own Device (BYOD): Allows personal devices for work, increasing user flexibility and accessibility.
- Online Collaboration: Uses tools like Cisco WebEx to facilitate teamwork on projects online.
- Video Communication: Essential for collaboration, with tools like Cisco TelePresence enhancing virtual meetings.
- Cloud Computing: Enables storage and access to applications/data over the internet. Supports businesses by allowing access from any device worldwide through data centers.

Types of Cloud Computing

Public Clouds: Open to the public with pay-per-use or free access.
Private Clouds: Dedicated to a single organization, such as government entities.
Hybrid Clouds: Combination of two or more cloud types, maintaining their unique identities while being connected.
Custom Clouds: Tailored for specific industries, can be private or public.

Technological Advances in Networking

Smart Home Technology: Integrates network capabilities into everyday devices, allowing for inter-device communication.
Powerline Networking: Utilizes electrical wiring for LAN connections where traditional networking methods are impractical.
Wireless Broadband: Provides internet access primarily in rural areas, using Cellular technology similar to smartphone networks.

Network Security Threats

External Threats: Include viruses, spyware, denial of service attacks, and data theft.
Internal Threats: Result from lost devices, employee misuse, or errors, worsened by BYOD practices.

Security Solutions

Home & Small Office: Require antivirus software and firewall protection to mitigate risks.
Larger Networks: Demand advanced solutions such as dedicated firewalls, Access Control Lists (ACLs), Intrusion Prevention Systems (IPS), and Virtual Private Networks (VPNs).

IT Professional Development

CCNA Certification: Validates foundational network knowledge, focusing on IP, security, wireless, and automation technologies.
Employment Opportunities: Cisco Networking Academy offers resources to connect students with job openings through their Talent Bridge Matching Engine.

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Description

Test your knowledge on the fundamentals of networking and how modern technologies have impacted our daily lives. This quiz covers key concepts like network components and their functions. Perfect for students of Introduction to Networks v7.0.