LAN Flashcards
(113 cards)
1
Q
An address that identifies the network and host address assigned to a device.
A
Internet Protocol address
2
Q
IP address
A
Internet Protocol address
3
Q
The portion of the IP address that identifies the network the device is assigned to
A
Subnet address
4
Q
A group of computers and associated devices that share a common communications line or wireless link, typically to a server
A
Local area network
5
Q
LAN
A
Local area network
6
Q
Computer users and resources within a geographic area the size of a metropolitan area that are connected
A
Metropolitan area network
7
Q
MAN
A
Metropolitan area network
8
Q
A network that connects several LANs. WANs are often limited to a corporation or an organization but are sometimes accessible to the public
A
Wide area network
9
Q
WAN
A
Wide area network
10
Q
A WAN that uses software to control connectivity
A
Software-defined wide area network
11
Q
SD-WAN
A
Software-defined wide area network
12
Q
Tunnel interface
A
multipoint Generic Routing Encapsulation
13
Q
mGRE
A
multipoint Generic Routing Encapsulation
14
Q
A collection of many networks owned by many entities that share information and communicate together
A
Internet
15
Q
A local or restricted communications network, especially a private network created using World Wide Web software
A
Intranet
16
Q
An intranet that can be partially accessed by authorized outside users, enabling businesses to exchange information over the internet securely
A
Extranet
17
Q
The term used to describe how devices are connected and how messages flow from device to device
A
Topology
18
Q
describes the way the network is wired
A
physical topology
19
Q
describes the way messages are sent
A
logical topology
20
Q
A device that is connected to absorb signals and prevent them from reflecting repeatedly back and forth on the cable
A
Terminator
21
Q
used with bus topology
A
Terminators
22
Q
host can provide network resources to other hosts or use resources located on other hosts
A
Peer-to-peer
23
Q
host providing resources controls access to the resources
A
Peer-to-peer
24
Q
Advantages of peer-to-peer networks include
A
Easy implementation
Inexpensive
25
Disadvantages of peer-to-peer networks
Difficult to expand (not scalable)
Difficult to support
Lack centralized control
No centralized storage
26
hosts have specific roles.
Client-server
27
some hosts are assigned server roles that allow them to provide network resources to other hosts
Client-server
28
Other hosts are assigned client roles that allow them to consume network resources
Client-server
29
Advantages of client-server networks
Easy to expand (scalable)
Easy to support
Centralized services
Easy to back up
30
Disadvantages of client-server networks
Expensive server operating systems
Extensive advanced planning required
31
small network used for communicating between personal devices
Personal area network
32
PAN
Personal Area network
33
typically created using Bluetooth wireless technologies
limited in range to only a few feet
PAN
34
network in a small geographic area ex. office
LAN
35
WLAN
-wireless local area network
-covers an area that is roughly the same size as a standard
-uses radio signals instead of wires to connect systems together
36
group of LANs that are geographically isolated and connected to form a large internetwork
Wide area network
37
network that covers an area as small as a few city blocks to as large as an entire metropolitan city
Metropolitan area network
38
typically owned and managed by a city as a public utility
Metropolitan area network
39
Be aware that many IT professionals do not differentiate between
wide area network and a MAN as they use the same network technologies
40
CAN
Campus area network
41
computer network made up of an interconnection of local area networks within a limited geographical area, such as a university
Campus area network
42
virtual WAN network that uses software to control connectivity, management and services between data centers and remote branches as well as the cloud
Software-defined wide area network
(SD-WAN)
43
allows any combination of transport services such as Long Term Evolution (LTE), Multiprotocol Label Switching (MPLS), and broadband internet services, to securely connect users to applications
Software-defined wide area network
(SD-WAN)
44
based on the same methodology as software-defined networking (SDN) which separates the control plane from the data plane to make networking more intelligent
SD-WAN
45
SDN
software-defined networking
46
LTE
Long Term Evolution
47
MPLS
Multiprotocol Label Switching
48
describes a computer system controlled by a single organization
Network: Management
49
portion of a network with a common network address.
Subnet
50
share the same network address, but they have unique host addresses
All devices on the subnet
51
larger network has a unique subnet address for
Each subnet
52
Devices connected through hubs or switches are on the same
Subnet
53
Routers are used to connect multiple subnets
Routers are used to connect multiple subnets
54
geographically dispersed WAN connections that connect multiple LANs
internetwork
55
Connecting two networks under different management is a form of
internetworking because data must travel between two networks
56
large world-wide public network
Internet
57
internet is public
virtually anyone can connect to it
58
ISP
internet service provider
59
Users and organizations connect to the internet through
internet service provider
60
internet uses a set of communication protocols (TCP/IP) for providing services
TPC/IP
61
website
Individuals and organizations can make services available to other users on the internet.
62
a private network that uses internet technologies
Intranet
63
Services available only to hosts that are connected to the private network
Intranet
64
your company might have a website that only employees can access
Intranet
65
private network that uses internet technologies, but its resources are made available only to external, trusted users
extranet
66
you might create a website on a private network that only users from a partner company can access
extranet
67
DMVPN
Dynamic Multipoint VPN
68
Dynamic Multipoint VPN
a Cisco software solution for building multiple VPNs in an easy, dynamic, and scalable manner
69
other VPN types are not sufficient
use a DMVPN when you need to add more sites
70
uses a hub-and-spoke configuration to establish a full mesh topology
DMVPN
71
simplifies the VPN tunnel configuration and provides a flexible option to connect to the central site
DMVPN
72
Each site uses Multipoint Generic Routing Encapsulation (mGRE). The mGRE tunnel interface allows a single GRE interface to dynamically support multiple IPsec tunnels
Dynamic Multipoint VPN (DMVPN)
73
Spoke sites can also obtain information about each other and alternatively build direct tunnels between themselves
spoke-to-spoke tunnels on Dynamic Multipoint VPN
74
group of computers that can share information through interconnections
network
75
network components
-Computers
-Transmission media
-Network interfaces
-Protocols
76
these are often called nodes or hosts in network
computer
77
a path for electrical signals between devices in network
Transmission media
78
- devices that send and receive electrical signals in network
Network interfaces
79
rules or standards that describe how hosts communicate and exchange data in network
Protocols
80
Despite the costs of implementation and maintenance, networks save organizations money by allowing them to:
-Consolidate (centralize) data storage.
-Share peripheral devices (such as printers).
-Increase internal and external communications.
-Increase productivity and collaboration.
81
Host role either
peer to peer
client-server
82
VPN
virtual private network
83
VoIP
Voice over IP
84
Server operating systems designed to
provide network resources
85
OSI
Open Systems Interconnection
86
theoretical way to classify and explain the complex process of sending data on a network.
Open Systems Interconnection
87
One very important thing that happens at the network layer is the assignment of IP addresses.
This is why the IP address is often referred to as a network layer address, or a layer three address.
88
Hypertext Transfer Protocol
(HTTP)
89
File Transfer Protocol
(FTP)
90
Trivial File Transfer Protocol
TFTP
91
Simple Network Management Protocol
(SNMP)
92
Logical Link Control
(LLC)
93
Media Access Control
(MAC)
94
(SMTP)
Simple Mail Transfer Protocol
95
(DNS)
Domain Name System
96
(TCP)
Transport Control Protocol
97
UDP)
User Datagram Protocol
98
(ARP)
Address Resolution Protocol
99
(ICMP)
Internet Control Message Protocol
100
(IGMP)
Internet Group Management Protocol
101
computers and devices in a network that communicate with each other
network nodes of hosts
102
how do you connect media to have devices communicate
twisted pair cabling
fiber optic cabling
wifi radio signals
103
network interface job consists of
converting digital data to type of signal that can be transmitted into network medium
104
standards in order to define how the data will be formatted
network protocols
105
hosts in a _______ network that both provide and consume network services
peer to peer
106
part of the network where all the computers share the same network ID
Subnet
107
subnet ID=network address
use subnet ID
108
two seperate networks that are connected together with wide area link between two organizations
Internetwork
109
ISPs
Internet service providers
110
manage a particular access point of the internet
Internet service providers ISPs
111
private network, uses many of same tech on internet
mini internet
intranet
112
essentially internet thats made partially available to entities outside of organization
extranet
113
TOPOLOGIES
MOD 2
