//2. Network Components, Types and Connections Flashcards
What are the topics for this Module?
- Client and Servers
- Network Components
- ISP Connectivity Options
It is located within the smartphone enable the phone to connect to local networks and the internet.
Wi-Fi transmitters and receivers
are host that has software installed which enable them to provide information to other host on the network
Server
Are computer host that has software installed that enable the host to request and display the information obtained from the server.
Client
What is an example of client software?
Web browser like chrome or edge. Also Outlook for emails.
All computers connected to a network that participate directly in network communication are classified as _________.
hosts
In small businesses and homes, many computers function as the _________ on the network.
servers and networks
This type of network is called a peer-to-peer (P2P) network.
A computer that function as a server and host
Give an example of simplest P2P network
Two directly connected computers using either a wired or wireless connection. Both computers are then able to use this simple network to exchange data and services with each other, acting as either a client or a server as necessary.
What is the main disadvantage of a P2P environment?
The performance of a host can be slowed down if it is acting as both a client and a server at the same time.
In larger businesses, why it is often necessary to have dedicated servers to support the number of service requests?
Because of the potential for high amounts of network traffic.
What are the advantages of peer-to-peer networking?
- Easy to set up
- Less complex
- Lower cost because network devices and dedicated servers may not be required
- Can be used for simple tasks such as transferring files and sharing printers
What are the disadvantages of peer-to-peer networking?
- No centralized administration
- Not as secure
- Not scalable
- All devices may act as both clients and servers which can slow their performance
__________ allows a device to act as both a client and a server within the same communication
P2P Application
_________ require that each end device provide a user interface and run a background service.
P2P Applications
What is a hybrid system in P2P Application?
Where resource sharing is decentralized, but the indexes that point to resource locations are stored in a centralized directory. In a hybrid system, each peer accesses an index server to get the location of a resource stored on another peer.
computer can run multiple types of server software. In a home or small business, it may be necessary for one computer to act as a ____________________________
file server, a web server, and an email server.
A single computer can also run multiple types of client software. There must be client software for ____________ required.
every service
With multiple clients installed, a host can connect to multiple ________ at the same time.
server
For example, a user can check email and view a web page while instant messaging and listening to internet radio.
What are the network infrastructure contains three categories of hardware components?
- End devices
- Intermediate devices
- Network Media
It is often the visible components of the network platform.
Hardware. Devices and media
Some network components are not visible such as?
wireless media, messages are transmitted through the air using invisible radio frequencies or infrared waves.
The network devices that people are most familiar with are called ?
end devices. Which can be classified as hosts
List some end devices
- Computers (workstations, laptops, file servers, web servers)
- Network printers
- Telephones and teleconferencing equipment
- Security cameras
- Mobile devices (such as smart phones, tablets, PDAs, and wireless debit/credit card readers and barcode scanners)
An end device (or host) is either the ________________ a message transmitted over the network,
source or destination
In order to uniquely identify hosts, what are used?
addresses
When a host initiates communication, it uses the ______________ to specify where the message should be sent.
address of the destination host
An ISP is?
The link between the home network and the internet.
An ISP can be what?
- Local cable provider
- Landline telephone service provider
- Cellular network that provides your smartphone service
- An independent provider who leases bandwidth on the physical network infrastructure of another company.
What other services can ISP provide?
These services can include
- email accounts
- network storage
- website hosting
- automated backup or security services.
How can ISP form a network of links?
Each ISP connects to other ISPs to form a network of links that interconnect users all over the world.
How ISP’s are connected?
Hierarchical manner - ensures that internet traffic generally takes the shortest path from the source to the destination.
The primary medium that connects the internet backbone is ?
fiber-optic cable
This cable is typically installed underground to connect cities within continents.
fiber optic cable
These cables also run under the sea to connect continents, countries, and cities.
Fiber optic
The interconnection of ISPs that forms the backbone of the internet is a complex what?
web of fiber-optic cables with expensive networking switches and routers that direct the flow of information between source and destination hosts.
Provide a simplest ISP connection option.
PC - MODEM - ISO
It consists of a modem that provides a direct connection between a computer and the ISP. This option should not be used though, because your computer is not protected on the internet.
A what is required to securely connect a computer to an ISP?
Router
How router connect wired hosts and a wireless AP to connect wireless hosts?
The router includes a switch to connect wired hosts and a wireless AP to connect wireless hosts.
The router also provides ____________ information and _________ for inside hosts.
client IP addressing
security
Based on the module, most home network users do not connect to their service providers with what?
Fiber optic cables
Based on the module, what is the two common connection options for small office and home users?
Cable and DSL
What is the meaning of DSL?
Digital Subscriber Line
What are some characteristics of Cable connection?
- Typically offered by cable television service providers
- The internet data signal is carried on the same coaxial cable that delivers cable television. It provides a high bandwidth, always on, connection to the internet.
- A special cable modem separates the internet data signal from the other signals carried on the cable and provides an Ethernet connection to a host computer or LAN.
What are other ISP connection options for home users?
Cellular, Satellite, Dial Up phone
List some intermediate devices
- Router
- Wireless Router
- Switch
- Wireless Access Point
- Firewall
- Call Manager
- Service Provider Switch
List some end devices
- Desktop Computer
- Laptop
- Printer
- IP phone
- Wireless Tablet
- TelePresence Endpoint
What is the Cisco Symbol of a router?
(Google it)
What is the Cisco Logo of Wireless Router and its actual?
Google it
What is the Cisco Symbol for a switch and its actual?
Google it
What is the Cisci Symbol for Wireless Access Point and its Actual?
Google it
What is the Cisco Symbol for Firewall and its actual?
Google it
What is the Cisco Symbol for Call Manager and its actual?
Google it
What is the Cisco Symbol for Service Provider Switch and its actual?
Google it
What is the symbol for printer?
Google it
What is the symbol for Wireless / LAN / and WAN media?
Google it
