Module 1 Quiz Flashcards
Networking has permeated every facet of our daily lives, none more so than our home lives. New technologies are frequently made available to consumers. What new technology is described by the following statement?
One of the things stopping many homeowners from implementing their own networks is the idea of having to build a new wired network in their homes; drilling holes and hiding or placing trunking. This technology avoids this by using the same wiring that delivers electricity to the home. Information is sent by using certain frequencies on the wire. This makes it possible to have a network connection anywhere in the house where there is an electrical outlet.
a.Bring your own device (BYOD)
b.Social media
c.Powerline networking
d.Wireless
e.Smart technology
Networking has permeated every facet of our daily lives, none more so than our home lives. New technologies are frequently made available to consumers. The following are some networking trends found in modern homes:
- Smart technology: Companies are integrating smart technology into an increasing number of appliances, allowing them to be connected to other devices in the home or automating certain tasks. Most of these smart technologies are supplemented by mobile phone applications, which allow for at-a-glance statistics, notifications or configuration. Although still expensive, these smart technologies will become pervasive as the availability of high-speed Internet technology becomes more widely available. This large collection of always-on devices has been one of the main driving forces behind the Internet of Things (IoT), also sometimes referred to as the Internet of Everything (IoE). This large-scale adoption is happening hand-in-hand with the migration from Internet Protocol (IP) v4 to IPv6, which provides many more available addresses than IPv4 in order to support the growing smart device revolution.
- Powerline networking: One of the things stopping many homeowners from implementing their own networks is the idea of having to build a new wired networks in their homes; drilling holes and hiding or placing trunking. Powerline networking avoids this by using the same wiring that delivers electricity to the home. Information is sent by using certain frequencies on the wire. This makes it possible to have a network connection anywhere in the house where there is an electrical outlet. It’s frequently used to create network connections to areas in the house to where it is impractical to extend dedicated network cables, or where the wireless network does not reach.
- Wireless: Traditional broadband is delivered to the home via fixed-line technologies such as cable, DSL and fiber. Wireless Internet Service Providers (WISPs) provide a viable alternative to those customers who find themselves within the WISP’s footprint. Initially these technologies were used more in remote or rural locations where there were no alternatives. The installation would include an antenna attached to an elevated structure such as a water tower.
- With the advent of technologies like LTE and 5G on the horizon it has become more common in urban environments to see houses with antennae on the roofs of their houses. From the perspective of the subscriber, the technology works very much the same as that of a DSL or fiber installation - namely a router with a link to the ISP which then distributes the Internet within the house via a LAN. The only difference is that there is no direct physical connection to the ISP. This group of technologies is commonly referred to as wireless broadband.
Which of the following is not an organisation tasked with maintaining the structure and standardisation of the Internet?
a.Internet Corporation for Assigned Names and Numbers (ICANN)
b.The Internet Engineering Task Force (IETF)
c.Cisco Certified Networkers Association (CCNA)
d.The Internet Architecture Board (IAB)
There are many organisations tasked with maintaining the structure and standardisation of the Internet. Some of these organisations include:
- The Internet Engineering Task Force (IETF)
- Internet Corporation for Assigned Names and Numbers (ICANN)
- The Internet Architecture Board (IAB)
The following statement describes a current trend in networking:
Data centers are groupings of servers and associated hardware which usually run a form of virtualization to spread the load of the various hosted applications and services over multiple devices. Virtualization allows different operating systems to run in parallel on the same CPU. This is done to increase both efficiency and redundancy. Smaller organizations that cannot afford to run their own data centers may lease storage and services from larger data center providers, such as Amazon. The combination of these technologies has resulted in a new type of on-line service.
Which of the following trends best aligns with the given statement?
a.Bring your own device (BYOD)
b.Video communication
c.Cloud computing
d.Online collaboration
- Bring your own device (BYOD) is the practice of allowing employees to bring their own devices, such as mobile phones and laptops, to work and have use them to access the corporate network.
- Online collaboration is the act of using collaboration tools to work together on a joint project via the network / Internet.
- Video communication is the application of tools such as Skype or Zoom to communicate via a video call with friends, family and co-workers.
- Cloud computing has become a general term for any service hosted on the Internet; this includes on-line file sharing, gaming or shared work spaces.
Network media is based on three underlying physical concepts. Which of the following is not one of these physical concepts.
a.Quantum entanglement
b.Electricity
c.Light
d.Radio frequencies
Modern networks generally consist of three types of network media:
- Electricity-based: These consist of metal wires carrying electrical impulses.
- Light-based: Information is encoded onto light pulses carried by glass or plastic fibers.
- Radio frequency-based: Also known as wireless communication; information is encoded using different wavelengths of the electromagnetic spectrum.
Historically, networks were divided into three types, depending on which type of traffic they carried. Which of the following is not one of these network types?
a.Video
b.Voice
c.Data
d.Social
Traditionally, networks were designed to carry data, voice or video. Modern networks carry a combination of all three. This type of network, which carries all types of traffic is known as a converged network. A social network is a software / web based platform in which people maintain connections with their friends.
The following statement describes a current trend in networking:
Tools such as Cisco WebEx, Google’s suite of tools and offerings by Microsoft are making it easier for individuals to work together regardless of their physical location. This frees organisations to be more flexible in how they are structured, since it is much easier to distribute expert knowledge than in a traditional, office-bound setup.
Which of the following trends best aligns with the given statement?
a.
Video communication
b.
Cloud computing
c.
Online collaboration
d.
Bring your own device (BYOD)
Bring your own device (BYOD) is the practice of allowing employees to bring their own devices, such as mobile phones and laptops, to work and have use them to access the corporate network. Online collaboration is the act of using collaboration tools to work together on a joint project via the network / Internet. Video communication is the application of tools such as Skype or Zoom to communicate via a video call with friends, family and co-workers. Cloud computing has become a general term for any service hosted on the Internet; this includes on-line file sharing, gaming or shared work spaces.
Networking has permeated every facet of our daily lives, none more so than our home lives. New technologies are frequently made available to consumers. What new technology is described by the following statement?
Traditional broadband is delivered to the home via fixed-line technologies such as cable, DSL and fiber. WISPs provide a viable alternative to those customers who find themselves within the WISP’s footprint. Initially these technologies were used more in remote or rural locations where there were no alternatives. The installation would include an antenna attached to an elevated structure such as a water tower.
a.Wireless
b.Social media
c.Smart technology
d.Bring your own device (BYOD)
e.Powerline networking
Networking has permeated every facet of our daily lives, none more so than our home lives. New technologies are frequently made available to consumers. The following are some networking trends found in modern homes:
- Smart technology: Companies are integrating smart technology into an increasing number of appliances, allowing them to be connected to other devices in the home or automating certain tasks. Most of these smart technologies are supplemented by mobile phone applications, which allow for at-a-glance statistics, notifications or configuration. Although still expensive, these smart technologies will become pervasive as the availability of high-speed Internet technology becomes more widely available. This large collection of always-on devices has been one of the main driving forces behind the Internet of Things (IoT), also sometimes referred to as the Internet of Everything (IoE). This large-scale adoption is happening hand-in-hand with the migration from Internet Protocol (IP) v4 to IPv6, which provides many more available addresses than IPv4 in order to support the growing smart device revolution.
- Powerline networking: One of the things stopping many homeowners from implementing their own networks is the idea of having to build a new wired networks in their homes; drilling holes and hiding or placing trunking. Powerline networking avoids this by using the same wiring that delivers electricity to the home. Information is sent by using certain frequencies on the wire. This makes it possible to have a network connection anywhere in the house where there is an electrical outlet. It’s frequently used to create network connections to areas in the house to where it is impractical to extend dedicated network cables, or where the wireless network does not reach.
- Wireless: Traditional broadband is delivered to the home via fixed-line technologies such as cable, DSL and fiber. Wireless Internet Service Providers (WISPs) provide a viable alternative to those customers who find themselves within the WISP’s footprint. Initially these technologies were used more in remote or rural locations where there were no alternatives. The installation would include an antenna attached to an elevated structure such as a water tower.
- With the advent of technologies like LTE and 5G on the horizon it has become more common in urban environments to see houses with antennae on the roofs of their houses. From the perspective of the subscriber, the technology works very much the same as that of a DSL or fiber installation - namely a router with a link to the ISP which then distributes the Internet within the house via a LAN. The only difference is that there is no direct physical connection to the ISP. This group of technologies is commonly referred to as wireless broadband.
The following image contains both end devices and intermediary network devices. Drag and drop the labels over the devices to label them according to their type.
End user devices are used by people to gain access to the network. They include PCs, laptops and mobile devices. Intermediary network devices are devices from which the network is constructed. They are used to build the routes, route and filter traffic as it passes across the network. They include routers, switches and firewall devices.
Modern networks require that their underlying architectures address four basic characteristics in order to meet user reliability expectations. Which of these characteristics is described by the following statement?
It has become a crucial practice in networking to ensure that the network infrastructure, services and data on network-attached devices are protected. In the context of the network, this protection extends to physical devices by restricting access to them and preventing unauthorised access to the management software or operating system of the protected devices.
a.Quality of Service (QoS)
b.Scalability
c.Fault tolerance
d.Security
Modern networks require that their underlying architectures address four basic characteristics in order to meet user expectations:
- Fault tolerance: A fault-tolerant network is one in which the impact of a failure limits as few as possible devices on the network. These types of networks consist of multiple paths between a source and destination in order to provide alternative paths for traffic. In the event of a failure the network must quickly adapt and select one of the alternative paths. Such a network with multiple paths is set to exhibit redundancy.
- Scalability: When designing a network, the designer needs to keep future growth in mind. A network can be considered scalable if it is designed with an eye on future expansion to support new users and applications. A key practice in designing scalable networks is to follow accepted standards and protocols. Standards and protocols provide designers and other network professionals with a shared vocabulary and allow them to focus on improving products and services without having to redesign existing rules and practices.
- Quality of Service (QoS): Quality of Service provides a mechanism for managing congestion in networks and ensuring reliable delivery of selected traffic types to all users. Creating a QoS policy on a router to give preferential treatment to certain types of traffic may ensure that priority is given to time-sensitive classes of traffic flow; this will result in a better service delivered to end users.
- Security: It has become a crucial practice in networking to ensure that the network infrastructure, services and data on network-attached devices are secured. In the context of the network, security refers both to securing the physical devices by restricting access to them and preventing unauthorised access to the management software or operating system of the secured devices.
Modern networks require that their underlying architectures address four basic characteristics in order to meet user reliability expectations. Which of these characteristics is described by the following statement?
These types of networks consist of multiple paths between a source and destination in order to provide alternative paths for traffic. In the event of a network outage, the network must quickly adapt and select one of the alternative paths. Such a network with multiple paths is set to exhibit redundancy.
Select one:
a.Fault tolerance
b.Quality of Service (QoS)
c.Scalability
d.Security
- Fault tolerance: A fault-tolerant network is one in which the impact of a failure limits as few as possible devices on the network. These types of networks consist of multiple paths between a source and destination in order to provide alternative paths for traffic. In the event of a failure the network must quickly adapt and select one of the alternative paths. Such a network with multiple paths is set to exhibit redundancy.
- Scalability: When designing a network, the designer needs to keep future growth in mind. A network can be considered scalable if it is designed with an eye on future expansion to support new users and applications. A key practice in designing scalable networks is to follow accepted standards and protocols. Standards and protocols provide designers and other network professionals with a shared vocabulary and allow them to focus on improving products and services without having to redesign existing rules and practices.
- Quality of Service (QoS): Quality of Service provides a mechanism for managing congestion in networks and ensuring reliable delivery of selected traffic types to all users. Creating a QoS policy on a router to give preferential treatment to certain types of traffic may ensure that priority is given to time-sensitive classes of traffic flow; this will result in a better service delivered to end users.
- Security: It has become a crucial practice in networking to ensure that the network infrastructure, services and data on network-attached devices are secured. In the context of the network, security refers both to securing the physical devices by restricting access to them and preventing unauthorised access to the management software or operating system of the secured devices.**
Which of the following are considered main functions of network devices? Marks are deducted for incorrect selections.
a. Regenerate data signals.
b. Filter traffic based on Windows credentials.
c. Filter traffic based on predetermined security settings.
d. Notify other devices of errors on the network.
e. Maintain information regarding Windows login accounts.
f. Provide an end user access to the network.
State whether the following is true or false:
The following image is an example of a logical topology:
True
False
Logical topology diagrams include things such as device names, ports and the addressing scheme. The information contained in this diagram may generally be seen as a map of the functioning of the network and settings applied in software.
