Networking Concepts Quiz

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Questions and Answers

What is the primary mechanism used to ensure reliable delivery of content for all users?

Redundancy

Quality of Service (QoS) (correct)

Packet Switching

Scalability

Circuit-switched networks allow packets to take different paths to the destination.

False

What characterizes a scalable network?

The ability to expand quickly and easily without impacting existing services.

Quality of Service (QoS) is necessary to prevent breaks and pauses during __________ transmissions.

voice and live video Signup and view all the answers

Match the following terms with their definitions:

Packet Switching = Traffic is split and routed through the network. Redundancy = Implementing multiple paths for fault tolerance. Scalability = Ability to expand without performance loss. Quality of Service = Mechanism to manage data and voice traffic. Signup and view all the answers

Which of the following is considered an end device in a network?

Computer Signup and view all the answers

Intermediary devices manage the pathway of data through a network.

True Signup and view all the answers

Name one type of network media used for communication.

Copper or fiber optic cable or wireless transmission Signup and view all the answers

An intermediary device includes a ______, which interconnects end devices.

router Signup and view all the answers

What is the primary function of network media?

To allow messages to travel from source to destination Signup and view all the answers

Match the types of intermediary network devices to their functions:

Switch = Interconnects devices in a local area network Router = Connects different networks Firewall = Filters incoming and outgoing network traffic Wireless Access Point = Provides wireless connectivity to devices Signup and view all the answers

A topology diagram represents the physical layout of a network.

False Signup and view all the answers

What does NIC stand for in networking?

Network Interface Card Signup and view all the answers

What is a Local Area Network (LAN)?

A network spanning a small geographic area Signup and view all the answers

Wide Area Networks (WANs) provide faster speed links than Local Area Networks (LANs).

False Signup and view all the answers

What is the primary function of the Internet?

To connect interconnected LANs and WANs worldwide. Signup and view all the answers

A __________ connects LANs over large geographic areas.

Wide Area Network (WAN) Signup and view all the answers

Match the following types of networks with their descriptions:

LAN = Small geographic area, high-speed bandwidth WAN = Large geographic area, slower speed links MAN = Connects multiple LANs within a city WLAN = Wireless technology for local area networking Signup and view all the answers

Which organization is NOT responsible for maintaining the structure of the Internet?

NASA Signup and view all the answers

The Internet is owned by a single individual or group.

False Signup and view all the answers

What are the primary mediums used to connect WANs?

Copper wires, fiber optic cables, and wireless transmissions. Signup and view all the answers

What is a key feature of converged networks?

They carry multiple services like data, voice, and video over one link. Signup and view all the answers

Converged networks are limited to using only one type of technology.

False Signup and view all the answers

What does network architecture refer to?

The technologies that support the infrastructure that moves data across the network. 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

Match the following characteristics with their descriptions:

Fault Tolerance = Limits the impact of a failure Scalability = Ability to grow and manage network load Quality of Service (QoS) = Ensures performance regardless of network load Security = Protects data integrity and access Signup and view all the answers

In a traditional separate network setup, each classroom would be cabled for which of the following?

Data, voice, and video with separate cabling Signup and view all the answers

Converged networks do not need to follow the same rules and standards.

False Signup and view all the answers

Name one of the four basic characteristics that network architectures need to address.

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

Which of the following devices can be used in a BYOD environment?

Smartphones Signup and view all the answers

Cloud computing refers to storing data exclusively on local servers.

False Signup and view all the answers

What tool is mentioned as a collaboration platform that allows users to connect and interact instantly?

Cisco WebEx Signup and view all the answers

The three types of Clouds are public, private, and __________.

hybrid Signup and view all the answers

What is a main benefit of cloud computing for businesses?

It allows for on-demand access to capabilities. Signup and view all the answers

Match the following types of Clouds with their descriptions:

Public Cloud = Services available to the general public Private Cloud = Services intended for a specific organization Hybrid Cloud = Combines both public and private clouds Signup and view all the answers

Collaboration is not considered a priority for businesses or educational institutions.

False Signup and view all the answers

What is the primary function of collaboration tools in a networked environment?

To enable individuals to work together on joint projects. Signup and view all the answers

What is one of the basic requirements of a reliable network?

Fault tolerance Signup and view all the answers

The concept of a converged network allows the use of only one type of technology.

False Signup and view all the answers

What does BYOD stand for in the context of networking?

Bring Your Own Device Signup and view all the answers

A __________ connects multiple LANs and allows for broader communication.

WAN Signup and view all the answers

Match the following trends to their impact on networking:

BYOD = Increases device diversity Cloud Computing = Enhances data accessibility Online Collaboration = Improves teamwork Video Conferencing = Facilitates remote communication Signup and view all the answers

Which of the following statements is true regarding LANs and WANs?

WANs can connect multiple LANs. Signup and view all the answers

Networking technologies are not changing the home environment.

False Signup and view all the answers

Name one security threat that networks may face.

Malware Signup and view all the answers

What is a characteristic of small home networks?

Allows connection to the Internet for a few computers Signup and view all the answers

In a peer-to-peer network, all devices function equally as clients and servers.

True Signup and view all the answers

What is the primary difference between clients and servers in a network?

Clients send requests, while servers provide information. Signup and view all the answers

A __________ connects many computers over large geographical areas.

Wide Area Network (WAN) Signup and view all the answers

Match the following types of networks with their characteristics:

Small Home Network = Connects a few devices to the Internet Medium Network = Interconnects hundreds of computers Peer-to-Peer Network = Clients also function as servers World Wide Network = Connects millions of computers globally Signup and view all the answers

Which of the following is a disadvantage of peer-to-peer networking?

Lack of centralized administration Signup and view all the answers

Servers are considered end devices in a network.

False Signup and view all the answers

Name one type of server commonly used in networks.

Email server, web server, or file server. Signup and view all the answers

Which of the following are classified as external security threats? (Select all that apply)

Spyware and adware Signup and view all the answers

Antivirus software is typically installed on intermediary devices to secure a network.

False Signup and view all the answers

What does BYOD stand for in the context of network security?

Bring Your Own Device Signup and view all the answers

Which of the following is used to identify fast-spreading threats such as zero-day attacks?

Intrusion prevention systems Signup and view all the answers

A __________ attack exploits a software vulnerability that is not yet known to the vendor.

zero-day Signup and view all the answers

Match the following security components with their purposes:

Antivirus software = Detects and removes malware Firewall = Blocks unauthorized access Intrusion Detection System = Monitors network traffic for suspicious activity Encryption = Protects data by converting it into a code Signup and view all the answers

A virtual private network (VPN) is used to provide secure access for remote workers.

True Signup and view all the answers

What is a significant issue caused by internal threats in network security?

Accidental or intentional security breaches from users Signup and view all the answers

What does ACL stand for?

Access Control List Signup and view all the answers

Network security measures need to be implemented in a single layer for optimal protection.

False Signup and view all the answers

Larger networks require a dedicated __________ system to enhance security.

firewall Signup and view all the answers

Match the following network requirements with their descriptions:

Fault tolerant = Limits impact of a failure Scalable = Supports growth and expansion Quality of Service = Maintains performance during high demand Secure = Protects data from unauthorized access Signup and view all the answers

Name one type of internal threat to network security.

Accidental breaches Signup and view all the answers

Which characteristic ensures that networks can handle increasing numbers of devices?

Scalability Signup and view all the answers

What is a key feature of converged networks?

They can transport data, voice, and video simultaneously over the same infrastructure. Signup and view all the answers

Fault tolerance only applies to network hardware and not to the network infrastructure.

False Signup and view all the answers

Name one trend in networking that will affect small to medium-sized businesses.

Cloud computing Signup and view all the answers

A network can consist of just two devices.

True Signup and view all the answers

Name one of the four basic characteristics that network architectures need to address.

Fault Tolerance Signup and view all the answers

A __________ network carries data, voice, and video over one set of rules and standards.

converged Signup and view all the answers

Which of the following best describes traditional separate networks?

They consist of different infrastructures for data, voice, and video. Signup and view all the answers

Match the following characteristics of network architecture with their descriptions:

Fault Tolerance = Limits the impact of a failure. Scalability = Ability to grow and handle increased demand. Quality of Service (QoS) = Ensures reliable performance. Security = Protects network integrity and data. Signup and view all the answers

Converged networks use different rules and standards for each type of service.

False Signup and view all the answers

What does network architecture refer to?

Technologies that support the infrastructure for data movement across a network. Signup and view all the answers

What is the main advantage of packet switching in a reliable network?

It splits traffic into packets that can take multiple paths. Signup and view all the answers

A scalable network can expand without negatively impacting existing users' performance.

True Signup and view all the answers

What mechanism is primarily used to ensure the reliable delivery of content, especially for voice and video transmissions?

Quality of Service (QoS) Signup and view all the answers

To improve network reliability, multiple __________ are necessary for fault tolerance.

paths Signup and view all the answers

Match the following terms with their descriptions:

Packet Switching = Splits traffic into packets for routing Quality of Service (QoS) = Ensures reliable delivery of applications Scalable Network = Expands to support new applications easily Redundancy = Provides multiple paths for fault tolerance Signup and view all the answers

What is a key characteristic of a Local Area Network (LAN)?

Typically provides high-speed bandwidth Signup and view all the answers

Wide Area Networks (WANs) usually provide faster speed links than Local Area Networks (LANs).

False Signup and view all the answers

Name one type of network that interconnects LANs over a wide geographical area.

Wide Area Network (WAN) Signup and view all the answers

A __________ is a collection of interconnected LANs and WANs worldwide.

The Internet Signup and view all the answers

Match the following types of networks with their characteristics:

LAN = Spans a small geographic area WAN = Interconnects LANs over wide areas MAN = Covers a city or a large campus WLAN = Uses wireless technology for connections Signup and view all the answers

Which organization is responsible for maintaining the structure of the Internet?

Internet Engineering Task Force (IETF) Signup and view all the answers

Local Area Networks (LANs) can only be administered by a single organization.

True Signup and view all the answers

What is one technology used to connect WANs?

Fiber optic cables Signup and view all the answers

What is one of the three goals of network security?

Integrity Signup and view all the answers

Physical security of network devices is a part of information security.

False Signup and view all the answers

What does BYOD stand for in a networking context?

Bring Your Own Device Signup and view all the answers

The goal of __________ in network security is to ensure that only intended recipients can read the data.

Confidentiality Signup and view all the answers

Match the following network security goals with their definitions:

Confidentiality = Only intended recipients can read the data. Integrity = Assurance that the data has not been altered. Availability = Timely access to data for authorized users. Signup and view all the answers

Which of the following is a trend that affects organizations and consumers?

Video communications Signup and view all the answers

Information security does not include protecting the information transmitted over the network.

False Signup and view all the answers

Name one factor that necessitates the transformation in the role of networks.

New technologies Signup and view all the answers

What is a hybrid cloud composed of?

Two or more types of cloud resources Signup and view all the answers

Smart home technology can improve the integration of appliances with daily activities.

True Signup and view all the answers

What technology allows devices to connect to a LAN via electrical outlets?

Powerline networking Signup and view all the answers

Wireless broadband often utilizes technology used by __________.

smart phones Signup and view all the answers

Match the following networking terms with their descriptions:

Hybrid Cloud = Combination of multiple cloud types Smart Home Technology = Integration of home appliances through connectivity Powerline Networking = LAN connectivity through electrical outlets Wireless Broadband = Remote internet connectivity using wireless signals Signup and view all the answers

Which of the following is a major characteristic of hybrid clouds?

They connect two or more distinct cloud types. Signup and view all the answers

Wireless Internet Service Providers (WISPs) are typically found in urban areas.

False Signup and view all the answers

Data is sent over a powerline networking system by using specific __________.

frequencies Signup and view all the answers

What type of threat is characterized by unauthorized access and can lead to data theft?

Data interception Signup and view all the answers

Internal users are often the most common source of security breaches.

True Signup and view all the answers

Name one external threat to network security.

Viruses, worms, or hacker attacks Signup and view all the answers

Antivirus and ____ software should be installed on end devices for network security.

antispyware Signup and view all the answers

Match the following types of security threats with their definitions:

Denial of Service attacks = Making a network resource unavailable to its intended users Malware = Software designed to disrupt, damage, or gain unauthorized access Zero-day attacks = Exploiting vulnerabilities that are unknown to the vendor Identity Theft = Stealing personal information to impersonate someone Signup and view all the answers

Which of the following is a recommended solution for home network security?

Installing a firewall Signup and view all the answers

All internal threats are intentional.

False Signup and view all the answers

What type of security involves using multiple layers and solutions?

Layered security Signup and view all the answers

Study Notes

Network Components

A network can be as simple as two computers connected by a cable or as complex as a network spanning the globe.
Network infrastructure consists of three categories: devices, media and services.
An end device is where a message originates or is received.
Intermediary devices connect end devices in a network, such as switches, wireless access points, routers and firewalls.
Intermediary devices regenerate and retransmit data signals, maintain network pathways information and notify devices of communication failures.
Network media allows messages to travel between source and destination.
Network media can include metallic wires, glass fibers and wireless transmission.
Network diagrams use symbols to represent network devices.
Network diagrams show the physical location of devices, ports and network addressing schemes.

LANs, WANs and The Internet

LANs are local area networks that span small geographic areas such as a home, school, office building or campus.
LANs are usually administered by a single organization and provide high speed bandwidth.
WANs are wide area networks that span large geographical areas such as cities, states or countries.
WANs interconnect LANs and are typically administered by multiple service providers.
WANs provide slower speed links between LANs.
The Internet is a collection of interconnected LANs and WANs.
The Internet is not owned by any individual or group but is managed by IETF, ICANN, and IAB.

Converged Networks

Converged data networks carry multiple services over one link, such as data, voice and video.
Converged networks are able to deliver data, voice and video between different devices over the same network infrastructure.
Converged networks use the same set of rules and standards.

Reliable Network

Network architecture refers to the technologies supporting data movement across a network.
Four basic characteristics of network architecture include fault tolerance, scalability, quality of service (QoS) and security.
Fault tolerance limits the impact of failure in a network by limiting the number of devices affected.
Fault tolerance is achieved by implementing packet switched networks, where data is split into packets that travel separately through a network.
Scalability ensures that a network can expand quickly and easily to support new users and applications.
QoS is the primary mechanism used to guarantee reliable content delivery for all users.
QoS allows routers to better manage the flow of data and voice traffic.

Network Trends

BYOD (Bring Your Own Device) allows end users to leverage their own personally owned devices to access information and communicate.
Online collaboration tools allow individuals to work jointly on projects with others over a network through tools like Cisco WebEx.
Cloud computing enables storage of personal files or data backup on servers over the internet.
Cloud computing also enables access to applications such as word processing and photo editing through the cloud.
Cloud computing allows businesses to extend their capabilities and deliver them automatically to devices anywhere in the world.
Three types of cloud computing include public clouds, private clouds and hybrid clouds.
Public clouds provide services and applications to the general public through pay-per-use models or for free.
Private clouds are intended for specific organizations or entities such as the government.
Hybrid clouds combine elements of both private and public clouds.

Globally Connected

Networks have a significant impact on life as they are used for communication, interaction, learning, work, and play.
Home networks involve connecting a few computers to each other and the internet.
Small office/home office networks allow remote devices to connect to a corporate network.
Medium to large networks connect hundreds or thousands of computers in multiple locations.
Worldwide networks connect computers globally, such as the internet.

Clients and Servers

Devices connected to a network are called hosts or end devices.
Servers provide information to end devices.
Clients request information from servers.
Peer-to-peer networks are used when a single device acts as both server and client.
Advantages of peer-to-peer networks: ease of setup, lower cost, and less complex.
Disadvantages of peer-to-peer networks: no centralized administration, slower performance, not as secure, and not scalable.

LANs, WANs, and The Internet

Local Area Networks (LANs) connect devices within a small geographical area.
Wide Area Networks (WANs) connect devices over a large geographical area.
The most commonly used WAN is the internet.
LANs utilize network devices including hubs, switches, routers, and access points.
LANs use different topologies including bus, star, ring, and mesh.
WANs rely on routers, modem, and other devices for connectivity.
WANs are also designed using different topologies like star, mesh, or hybrid.
The internet connects LANs and WANs using routers, modem, and other devices.

The Network as a Platform

Converged networks carry data, voice, and video on a single link.
Converged networks are more cost-effective, easier to manage, and provide consistent quality of service.
Network architecture refers to the technologies that support data movement across the network.
Fault tolerance, scalability, quality of service, and security are critical to a reliable network.

Reliable Network

Fault tolerance limits the impact of network failures, preventing service disruptions.
Scalability allows networks to handle increasing traffic.
Quality of Service (QoS) ensures a consistent level of performance for different types of traffic.
Security measures protect networks from various threats.

Network Security

Internal users can pose significant security threats.
Security is essential to protect data from various threats such as viruses, malware, denial of service attacks, data theft, and identity theft.
Security threats can be external or internal.
Security solutions include antivirus software, firewalls, access control lists, intrusion prevention systems, and virtual private networks (VPNs).

Network Types

There are two main types of networks: Local Area Networks (LANs) and Wide Area Networks (WANs).
LANs cover small geographical areas like homes, schools, or offices, and are usually managed by a single organization.
WANs span large geographic areas like cities, states, or countries and are often managed by multiple service providers.
Other network types include Metropolitan Area Networks (MANs), Wireless Local Area Networks (WLANs), and Storage Area Networks (SANs).

Local Area Network Characteristics

LANs cover small geographic areas, like a home, school, or office building.
LANs are usually managed by a single organization or individual.
LANs offer high-speed bandwidth to devices within the network.

Wide Area Network Characteristics

WANs connect LANs over wide geographical areas, such as between cities or countries.
WANs are typically administered by multiple service providers.
WANs generally provide slower speed links between LANs.

The Internet

The Internet is a massive collection of interconnected LANs and WANs.
LANs are connected to each other through WANs.
WANs are connected via copper wires, fiber optic cables, and wireless transmissions.
The Internet is maintained by various organizations like the Internet Engineering Task Force (IETF), the Internet Corporation for Assigned Names and Numbers (ICANN), and the Internet Architecture Board (IAB).

Reliable Networks

Reliable networks provide redundancy by using packet switching, where data is split into smaller packets and routed independently over the network.
This allows for multiple paths for data transmission, ensuring fault tolerance.
Circuit-switched networks establish dedicated circuits for data transmission, which doesn't offer the same flexibility as packet switching.

Scalable Networks

Scalable networks can easily expand to support new users and applications without affecting the performance of existing services.
Scalability is achieved by adhering to standardized protocols and network design principles.

Quality of Service (QoS)

QoS ensures the reliable delivery of content for all users, especially for bandwidth-heavy services like voice and video.
Routers use QoS policies to manage data and voice traffic effectively, mitigating issues like dropped frames in video calls.

Network Security

Network security involves protecting network infrastructure and data from unauthorized access and malicious activities.
The three main goals of network security are: confidentiality, integrity, and availability.
Confidentiality ensures only intended recipients can access data.
Integrity ensures data remains unaltered during transmission.
Availability guarantees timely and reliable access to data for authorized users.

Network Trends

The network environment is constantly changing due to new technologies and user devices.
Key trends impacting networks include:
- Bring Your Own Device (BYOD)
- Online collaboration
- Video communications
- Cloud computing

Bring Your Own Device (BYOD)

BYOD allows users to use their own devices, promoting flexibility and opportunity.

Hybrid Clouds

Combine two or more cloud types, like custom and public clouds, while maintaining their unique attributes.
Both cloud types remain distinct but operate under a unified architecture.

Smart Home Technology

Integrates technology into everyday appliances.
Enables communication and interaction between devices for tasks like meal preparation.

Powerline Networking

Allows devices to connect to a LAN over existing electrical wiring.
Useful in environments where wired or wireless connections aren't feasible.

Wireless Broadband

Connects homes and small businesses to the internet via wireless technology.
Used in rural areas where traditional wired connections might be limited.
Wireless Internet Service Providers (WISPs) provide connectivity through designated access points or hotspots.
Uses similar technology as smartphones.

Network Security Threats

Threats can originate from external or internal sources.
External threats include: viruses, worms, Trojan horses, spyware, adware, zero-day attacks, hacker attacks, Denial of Service (DoS) attacks, data interception, and identity theft.
Internal threats can come from intentional or unintentional actions by network users.

Network Security Solutions

Network security involves implementing multi-layered solutions and using various technologies.
Solutions for home or small networks include:
- Installing antivirus and antispyware software on end devices.
- Employing firewall filtering to block unauthorized network access.

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Description

Test your knowledge on network components and infrastructure. This quiz covers various types of networks, including LANs and WANs, along with the devices and media that facilitate communication. Learn about network diagrams and their representations of network devices.