Network Edge Components and Access Networks
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

End systems are also known as hosts because they provide connection to the Internet.

False

Desktops, laptops, and smartphones are considered clients in the context of end systems.

True

Servers are generally less powerful than clients.

False

Mobile devices such as tablets are classified as end systems.

<p>True</p> Signup and view all the answers

The term 'network edge' refers to the central components of computer networking.

<p>False</p> Signup and view all the answers

End systems include only traditional computing devices like desktops and servers.

<p>False</p> Signup and view all the answers

Web servers and e-mail clients are examples of application programs run by end systems.

<p>True</p> Signup and view all the answers

Hosts and end systems are terms that can be used interchangeably in computer networking.

<p>True</p> Signup and view all the answers

DSL modems use low-frequency tones for transmission over telephone wires.

<p>False</p> Signup and view all the answers

A splitter is used on the customer side to combine data and telephone signals.

<p>False</p> Signup and view all the answers

The DSL access allows simultaneous use of telephone and internet services by implementing frequency-division multiplexing.

<p>True</p> Signup and view all the answers

The highest possible upstream rate defined by DSL standards is 16 Mbps.

<p>False</p> Signup and view all the answers

An ordinary two-way telephone channel operates within the frequency band of 0 to 4 kHz.

<p>True</p> Signup and view all the answers

DSL transmission rates can be capped by the DSL provider based on tiered service options.

<p>True</p> Signup and view all the answers

DSL is designed to function effectively over distances greater than 10 miles from the central office.

<p>False</p> Signup and view all the answers

Electrical interference has no significant effect on the maximum DSL transmission rates.

<p>False</p> Signup and view all the answers

5G is the fourth generation of wide-area wireless networks.

<p>False</p> Signup and view all the answers

Physical media used in Internet transmission can only be made of a single type of material.

<p>False</p> Signup and view all the answers

Coaxial cable is an example of unguided media.

<p>False</p> Signup and view all the answers

Guided media allows electromagnetic waves to propagate in the atmosphere.

<p>False</p> Signup and view all the answers

A bit travels from one end system to another by passing through multiple transmitter-receiver pairs.

<p>True</p> Signup and view all the answers

Twisted-pair copper wire is categorized as unguided media.

<p>False</p> Signup and view all the answers

Multimode fiber-optic cable is an example of guided media.

<p>True</p> Signup and view all the answers

The wireless LAN is considered a type of guided media.

<p>False</p> Signup and view all the answers

Cable Internet access uses a specialized device called a fiber modem.

<p>False</p> Signup and view all the answers

In a hybrid fiber-coaxial network, traditional coaxial cable reaches individual houses.

<p>True</p> Signup and view all the answers

The DOCSIS 2.0 standard allows for upstream rates of up to 150 Mbps.

<p>False</p> Signup and view all the answers

Cable Internet access is considered a shared broadcast medium.

<p>True</p> Signup and view all the answers

A cable modem termination system (CMTS) converts digital signals to analog.

<p>False</p> Signup and view all the answers

As of 2020, Google has 19 data centers located on three continents.

<p>False</p> Signup and view all the answers

Each neighborhood junction in a hybrid fiber-coaxial network can support 500 to 1,000 homes.

<p>False</p> Signup and view all the answers

Digital subscriber line (DSL) Internet access is typically provided by a local telephone company.

<p>True</p> Signup and view all the answers

Cable Internet access usually has a symmetrical data rate for both upstream and downstream channels.

<p>False</p> Signup and view all the answers

The maximum achievable rate of cable Internet may not always be realized due to impairments.

<p>True</p> Signup and view all the answers

In 2020, more than 80% of the households in Europe and the USA had no Internet access.

<p>False</p> Signup and view all the answers

Access networks connect an end system directly to the content provider network.

<p>False</p> Signup and view all the answers

The typical configuration for DSL involves a customer's modem communicating with a digital subscriber line access multiplexer (DSLAM).

<p>True</p> Signup and view all the answers

Home access networks for Internet connectivity are primarily limited to fiber optics and satellite connections.

<p>False</p> Signup and view all the answers

The figures referenced in the content illustrate various access networks and their applications in different settings.

<p>True</p> Signup and view all the answers

Regional Internet Service Providers (ISPs) do not play a role in home access networks.

<p>False</p> Signup and view all the answers

The installation cost of a physical link is often significantly lower than the cost of the material itself.

<p>False</p> Signup and view all the answers

Twisted-pair copper wire has been used in telephone networks for over two decades.

<p>False</p> Signup and view all the answers

Modern twisted-pair technology, like category 6a cable, can achieve data rates of 10 Gbps over distances of up to fifty meters.

<p>False</p> Signup and view all the answers

Unshielded twisted pair (UTP) is primarily used for connecting local area networks (LANs) within buildings.

<p>True</p> Signup and view all the answers

Fiber-optic technology was completely successful in replacing twisted pair technology upon its emergence in the 1980s.

<p>False</p> Signup and view all the answers

The thickness of the twisted pair wire does not affect the data rates that can be achieved in a network.

<p>False</p> Signup and view all the answers

The data transmission rate for dial-up modem technology over twisted pair reaches up to 56 Mbps.

<p>False</p> Signup and view all the answers

The main purpose of twisting the pairs in twisted-pair cables is to increase electrical interference among the wires.

<p>False</p> Signup and view all the answers

Study Notes

Network Edge Components

  • End systems are computers and devices connected to the internet
  • These include desktop computers, laptops, smartphones, tablets, and other devices
  • They are also referred to as hosts
  • Hosts can be clients or servers
  • Clients are desktop computers, laptops, smartphones
  • Servers are more powerful machines that store and distribute web pages, email, videos, etc.
  • Many servers reside in large data centers

Access Networks

  • Access networks connect end systems to the edge router
  • Different types of access networks are used in various settings (home, enterprise, wide-area mobile wireless)
  • Examples include DSL, cable, FTTH, and 5G fixed wireless

Home Access

  • DSL (Digital Subscriber Line) uses existing telephone lines to transmit data, incorporating multiple frequencies for different purposes
  • Cable access uses cable television infrastructure, sharing a common broadcast medium, making simultaneous data transfer potentially slower
  • FTTH (Fiber to the home) uses fiber optic cables for direct connection to the home, offering higher speeds
  • 5G Fixed Wireless offers high speed wireless home access

Enterprise Access

  • Ethernet uses twisted pair copper wire to connect to an Ethernet switch
  • Wireless LAN (WiFi) uses IEEE 802.11 technology for wireless access
  • Both are commonly seen in corporate and university settings, as well as residences

Wide-Area Wireless

  • 3G, LTE, 4G, and 5G wide-area wireless technologies provide access via cellular network infrastructure
  • Mobile devices use these technologies for messaging, social networking, payments, etc
  • Communication occurs through base stations at a wider range (tens of kilometers)

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Wireless Computing PDF

Description

Explore the foundational aspects of network edge components and access networks in this quiz. Learn about end systems, their classification as hosts, and various types of access networks including DSL, cable, and 5G. Test your knowledge on how these elements connect users to the internet.

More Like This

Network Components and Host Roles Quiz
10 questions
Network Components and Host Roles
15 questions
Use Quizgecko on...
Browser
Browser