Network Types Flashcards

1
Q

What network type is centered around a person and their devices?

A

PAN

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2
Q

What network type allows for various devices, such as desktop, laptop, smartphones, etc?

A

PAN

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3
Q

What network type consists of computers within a limited area, like a home, lab, or office building?

A

LAN

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4
Q

Most often LANs use what to connect the network devices?

A

Ethernet, WI-FI, or both

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5
Q

What network type is a LAN with wireless connectivity and is popular for small businesses?:

A

wlan

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6
Q

What network type allows access to storage devices and allows servers to access devices such as tape libraries and disk arrays?

A

SAN

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7
Q

What network type provides networking of multiple LANS across a university campus or groups of buildings?

A

CAN

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8
Q

What network type provides networking across a larger area than a CAN, like a city?

A

MAN

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9
Q

What network type covers a large geographic area, like a global business or government bodies?

A

WAN

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10
Q

What are the two network type models?

A

CLient-Server and Peer-to-Peer

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11
Q

Which network model has a distinct server that stores data and a distinct client that requests from it?

A

Client-server

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12
Q

Which network model connects machines that can both store data and request data from each other?

A

Peer-to-Peer

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13
Q

Bitcoin and Tor are examples of what?

A

Peer-to-Peer models

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14
Q

What network topology has a single line of devices connected by one shared network cable?

A

Bus

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15
Q

In what network topology, do the computers connect to the network by physically tapping into the network with special connectors,which allows the network cable to remain one continuous conduit?

A

Bus

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16
Q

What topology has the requirement that the ends of the cable must be properly terminated with special electrical resistors called terminators?

A

Bus

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17
Q

If the network cable in a bus topology is cut, what will happen?

A

Signal Reflection

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18
Q

What is the term for a network in bus topology that is extended by adding segments of cable at either end of the existing cable?

A

Network segment

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19
Q

Computers in a bus topology communicate how? This term means that you can either send or receive data, but not do both at the same time.

A

half-duplex mode

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20
Q

The network cable in a bus topology is a what that means that all computers attached to the network will receive any and all traffic sent on the network?

A

Shared communications medium

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21
Q

Computers in a bus topology have to listen for a clear time to send their data or be faced with a what that forces everyone to stop sending until the line clears?

A

Collision

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22
Q

What network topology was designed to avoid the concept of collision that was an issue with bus topology?

A

Ring topology

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23
Q

What term allows the network cable in a ring topology to remain a shared medium but controls traffic?

A

Fiber distributed data interface (FDDI)

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24
Q

In what network topology, does the cable enters a port on the network card exits a port on its way out to the next computer on the network?

A

Ring topology

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25
Q

Dual rings can be used in the ring topology to allow for what?

A

High availability

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26
Q

What network topology is also known as a hub-and-spoke network?

A

Star topology

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27
Q

The what network topology is comprised of a central network device, such as an Ethernet switch, connected to various network devices like servers, computers and printers?

A

Star topology

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28
Q

What network topology is most common on LANs?

A

Start topology

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29
Q

What happens is a break occurs in a star topology?

A

Only one device is severed

30
Q

What happens if the central switch fails in a star topology?

A

Everything fails

31
Q

What network topology is often drawn as a web of direct connections between computers or nodes?

A

Mesh topology

32
Q

What network topology is commonly used when the network needs high availability and redundancy is needed?

A

Mesh topology

33
Q

What behavior in a mesh topology describes how nodes in the mesh are aware of each other and can establish new connections around failed nodes?

A

Self-healing network

34
Q

In the early days of mainframe computers, nearly all computing and network power was blank in large datacenters?

A

Centralized

35
Q

In the old centralized system, users log in to machines called what?

A

Dumb terminals

36
Q

In the early days, all programming and functionality were contained where?

A

In the mainframe

37
Q

In the old centralized system, what accepted commands and rendered a display with the results?

A

Dumb terminal

38
Q

Today, what has lead a resurgence of centralization?

A

Cloud computing

39
Q

A web browser functions like what type of architecture in that it doesn’t perform complex calculations?

A

Centralization

40
Q

What are two great benefits of centralization?

A

Security and availability

41
Q

What is an approach that puts the computing power in the user’s device rather than a datacenter?

A

Decentralization

42
Q

Decentralization become possible when what was popularized in the late 1980s?

A

Microcomputers

43
Q

Users storing data on cassette tapes or floppy drives before hard drives became reasonably priced and lack of backing up or storing data securely was an issue with what?

A

Decentralization

44
Q

One drawback of decentralization was what that meant data could fall into the wrong hands?

A

local security

45
Q

Data created by one user could be incompatible with the operating system of another user is an example of a drawback of what method?

A

Decentralization

46
Q

Name three advantages of decentralization?

A

1) Process without a network connection
2) Ideal for portable systems
3) lack of a single point of failure

47
Q

What model is very popular with email and databases?

A

Client/Server

48
Q

Blank applications tend to store data in the datacenter, but may leverage the computing power of the user’s client computer to perform some tasks.

A

Client/Server

49
Q

The client/server model allows application designers to implement what?

A

Advanced User Interfaces

50
Q

What is one challenge with client/server applications?

A

Data inconsistency due to multiple users

51
Q

In what model, do client computers act as both the servers and workstations?

A

P2P

52
Q

Blank does not depend on whether your network is wired, wireless or a mixture of two. The difference comes down to portability vs stability?

A

Network Architecture

53
Q

Blank is often associated with VMs operating as servers within a datacenter, but it can include many different types of hardware?

A

Virtualization

54
Q

What does VM stand for?

A

Virtual machines

55
Q

Servers, workstations, storage and even network devices can all be what?

A

Virtualized

56
Q

What term describes the technique of converting a hardware-based resource into software?

A

Virtualization

57
Q

Today, virtualization allows blank to host many different virtual machines or to create network devices on demand, such as virtual routers and firewalls.

A

One physical server

58
Q

Virtualization relies on a special type of software known as what that creates the virtual hardware for devices

A

Hypervisors

59
Q

Name two types of hypervisors

A

Open source and commercial

60
Q

All blank have one thing in common. They use software to create the illusion of hardware.

A

Hypervisors

61
Q

The operating system of a VM is referred to as what?

A

Guest OS

62
Q

The operating system of a computer that has a VM is referred to as what?

A

Host OS

63
Q

The hypervisor provides the VM and therefore the guest OS access to what?

A

The physical CPU and RAM

64
Q

What are the two types of hypervisors?

A

1) Type 1 (bare metal)
2) Type 2 (hosted)

65
Q

What type of hypervisor typically requires dedicated hardware and are installed on a machine’s operating system. They are more common in datacenters than homes.

A

Type 1 (bare metal)

66
Q

What type of hypervisor looks and feels like any other app that you may run on your laptop?

A

Type 2 (hosted)

67
Q

Type 1 hypervisors differ from type 2 in the way they are blank.

A

Installed

68
Q

VMware ESX and open-source KVM hypervisor are intended to be installed on what?

A

A dedicated bare metal server

69
Q

What type of hypervisor presents very little information on the console screen of the host computer?

A

Type 1 (bare metal)

70
Q

What type of hypervisors is installed on an application on personal computers or laptops?

A

Type 2 (hosted)

71
Q

In a type 2 hypervisor, the hypervisor is competing with what with all running applications?

A

hardware resources

72
Q

In a type 2 hypervisor, the hypervisor does not have direct and unrestricted access to what?

A

Physical hardware