Networking Flashcards
(129 cards)
1
Q
Transmit the signal between two directional antennas shaped like dishes
A
Terrestrial Microwave Systems
2
Q
Subject to interference from the military, amateur radio, cellphones etc.
A
Radio
3
Q
QoS
A
Quality of Service
4
Q
LAN
A
Local Area Network
5
Q
refers to the packet format or contents.
A
Frame
6
Q
BPS
A
Bits Per Second
7
Q
Have transmissions in the frequency range of 4-6 GHz or 21-23 GHz
A
Terrestrial Microwave Systems
8
Q
is also known as a network address.
A
Prefix
9
Q
is a formatting process that enables documents and graphics images to be read on the Web. It also provides for fast links to other locations.
A
Hypertext Markup Language (HTML)
10
Q
address is a numerical label assigned to the devices connected to a computer network that uses the IP for communication.
A
IP (Internet Protocol) address
11
Q
is fiber-optic cable used on a network backbone for high-speed communications.
A
Fat Pipe
12
Q
links multiple LANs within a large city or metropolitan region.
A
metropolitan area network (MAN)
13
Q
is a private network within an
organization. It uses the same Web-based software as the Internet, but its access is restricted.
A
Intranet
14
Q
is a series of interconnected computers, printers, and other
computer equipment that share hardware and software resources.
A
local area network (LAN)
15
Q
is one in which any computer can communicate with other networked computers on an equal or peer-like basis without going through an intermediary (server or host).
A
Peer-to-Peer network
16
Q
IMAP
A
Internet Message Access Protocol
17
Q
is the total cabling of the network.
A
Cable Plant
18
Q
FCC
A
Federal Communications Commission license
19
Q
Can be broadcast in a single direction or in all directions, using an LED to transmit and a photodiode to receive
A
Infrared Technologies
20
Q
An inexpensive alternative where communications cabling cannot be installed easily
A
Radio
Infrared
21
Q
identifies the individual computer on the network.
A
Suffix
22
Q
Microwave Technologies
A
- Terrestrial microwave systems
- Satellite microwave systems
23
Q
Links networks at two locations by using radio communications
A
Wireless Networking
24
Q
transmission, the entire channel capacity of the medium is used by one data signal. Thus, only one node transmits at a time.
A
Baseband
25
software application or hardware service is one that involves a vital business or support function.
Mission-Critical
26
Have transmissions in 11-14 GHz range
Satellite Microwave Systems
27
is the number, size, and frequency of packets transmitted on the network in a given amount of time.
Network traffic
28
DNS
Domain Name System
29
Reliable and difficult for intruders to intercept because it uses ultra-high frequency ranges
Wireless Networking
30
is a high-capacity communications medium that joins networks and central network devices on the same floor in a building, on different floors, and across long distances.
Backbone
31
computer accesses a mainframe, a minicomputer, or a microcomputer that allows access to multiple users.
Client
32
is a device that connects two or more packet-switched networks or subnetworks.
Router
33
is a network in the shape of a ring or circle, with nodes connected around the ring.
Ring Topology
34
layouts combine the logical communications of a bus with the physical layout of a star.
Bus-Star Topology
35
SSID
Service Set Identifier
36
transmission employs several transmission channels on a single communications medium. More than one node can transmit at a time.
Broadband
37
A T-connector with a terminator at one end
Thin Coaxial Cable
38
Router two primary fun ctions:
- managing network traffic
- allowing multiple devices to use the same Internet
39
is also called the host address.
Suffix
40
Wireless Technologies
* Radio technologies
* Infrared technologies
* Microwave technologies
* RFID Technologies
41
NAT
Network Address Translation
42
surrounded by insulation
Copper core
43
is a hallmark of networks. A single user can
make certain files, peripherals, and other software available
to a limited set of users.
Network Sharing Services
44
Subject to interference from natural obstacles
Radio
45
is the total amount of opposition to the flow of current. In coaxial cable, a 50-ohm impedance influences how fast a packet can travel through the conductive material under optimal conditions.
Impedance
46
DHCP
Dynamic Host Configuration Protocol
47
is a collection of thousands of smaller
networks globally linked by various network
equipment and communications methods.
Internet
48
Networking Capabilities
File services
Print services
Software services
Client/server applications
Electronic mail services
Internet and intranet services
Commerce
Network monitoring
49
is the amount of signal that is lost as the signal travels through the communications medium from its source (transmitting node) to the receiving node, measured in decibels.
Attenuation
50
is a single network computer that offers multi-user access by making software applications, data files, and network utilities available to other network computers.
File Server
51
WAN
Wide Area Network
52
Resembles television cable
Thin Coaxial Cable
53
ICMP
Internet Control Message Protocol
54
Traditional way to build a network
Wired Networking
55
transmission, the signal goes from point to point.
line-of-site
56
IP
Internet Protocol
57
HTTPS
Hypertext Transfer Protocol Secure
58
is the measurement of the frequency of the alternation of an electrical current or radio wave.
Hertz
59
Pairs of insulated wires are twisted together, surrounded by a shielding material for added EMI and RFI protection, all inside a protective jacket.
Shielded Twisted-Pair Cable
60
UDP
User Datagram Protocol
61
forwards data between devices, unlike routers, which forward data between networks.
Network Switch
62
An option for portable communications
Radio
63
Expensive to install and maintain
Microwave
64
Transmit the signal from transmitting antenna to a satellite in space, then to the receiving antenna
Satellite Microwave Systems
65
Covered by a PVC outer jacket
Fiber Optic Cable
66
STP
Shielded twisted-pair
67
has an operating system that allows multiple
computers (clients) to access it simultaneously.
Host
68
Middle of the T is connected to the NIC in the computer or network device
Thin Coaxial Cable
69
are the cabling or radio
waves used to connect one network computer to
another and to transport data between them.
Communications media
70
PDU
Protocol Data Unit
71
is a system of computers,
network devices, printers, and software linked by
communications cabling.
Network
72
act as an identifier for a specific machine on a particular network. It also helps you to develop a virtual connection between a destination and a source.
IP Addressing
73
IP Address is divided into two parts:
* Prefix
* Suffix
74
Can be cheaper and easier to install than cable
Wireless Networking
75
Communications Media Costs and Considerations
* Installation costs
* Maintenance costs
76
is an established guideline that
specifies how networked data is formatted into a packet, how the packet is transmitted, and how it is interpreted at the receiving end.
Protocol
77
Workstations, servers, hosts, and network equipment are physically connected to the cable through connectors, NICs, and other physical connection devices.
Wired Networking
78
is a data unit formatted for transmission over a network.
Packet
79
Attached to a BNC connector, which is then connected to a T-connector
Thin Coaxial Cable
80
MAC
Media Access Control
81
is the difference between the transmitted power and the receiver sensitivity, measured in decibels. It is the minimum transmitter power and receiver sensitivity needed for a signal to be sent and received intact.
Power Budget
82
Require operator to obtain an FCC – Federal Communications Commission license
Terrestrial Microwave Systems
83
consists of four numbers, each number contains one to three digits, with a single dot (.) separates each number or set of digits.
IP address
84
One or more glass or plastic fiber cores inside a protective cladding material
Fiber Optic Cable
85
Insulation surrounded by another conducting metal, such as braided wire
Coaxial Cable (Coax)
86
consists of users who share
resources (such as drive and printer resources) in a decentralized way.
Workgroup
87
Does not go through walls
Infrared
88
RFI
Radio Frequency Interference
89
OSPF
Open Shortest Path First
90
HTTP
Hypertext Transfer Protocol
91
VPN
Virtual Private Network
92
is the availability of backup hardware or software so that computer functions can continue without interruption in the event of a problem.
Fault tolerance
93
enables the user to search for information and to display text, graphics, sound, and video from the World Wide Web.
Web browser
94
WPA
Wi-Fi Protected Access
95
EMI
Electro Magnetic Interference
96
Subject to interference from bad weather, EMI, and atmospheric conditions
Microwave
97
is any device connected to a network, such as
a microcomputer, a mainframe, a minicomputer,
network equipment, or a printer.
Node
98
TCP
Transmission Control Protocol
99
Critical Types of Network Nodes
- Workstations
- Hosts
- File servers
100
is a vast network of
servers worldwide that provide access to voice, text,
video, and data files.
World Wide Web (Web)
101
FTP
File Transfer Protocol
102
UTP
Unshielded twisted-pair
103
WEP
Wired Equivalent Privacy
104
is used by wireless networks in place of cable for communications between network nodes. Network
data is transmitted by means of reliable high-frequency radio signals.
Spread spectrum technology (SST)
105
Require that you launch a satellite or lease service from a company offering this technology
Satellite Microwave Systems
106
Network Communication Methods
- Wire
- Fiber-optic
communications
- Radio waves, such
as microwaves
107
is a node that broadcasts data to every computer or Ethernet-based device connected to it.
Network Hub
108
is an adapter card that enables a workstation, file server, printer, or other device to connect to a network and communicate with other network nodes.
Network Interface Card (NIC)
109
part of IP address identifies the physical network to which the computer is attached.
Prefix
110
is a network configured so that nodes are connected to a segment of cable in the logical shape of a line, with a terminator at each end.
Bus Topology
111
has its CPU and may be used as a
stand-alone computer for local software applications.
Workstation
112
NIC
Network Interface Card
113
is the capacity of a channel to transmit data.
Bandwidth
114
Has no shielding material between the pairs of insulated wires twisted together and the cables outside jacket
Unshielded Twisted-Pair Cable
115
An alternative where communications cabling cannot be installed easily, such as over long distances
Microwave
116
Usually no licensing requirements
Radio
117
is also called IP number or internet address. It helps you to specify the technical format of the addressing and packets scheme. Most networks combine TCP with IP.
IP address
118
Covered with an outer insulating jacket
Twisted-Pair Cable
119
is a prime example of networking
capabilities.
Internet
120
reaches throughout a large area
(such as a college campus, a city, or across several states)
connecting many kinds of LANs and network resources.
Enterprise Network
121
is a far-reaching system of
networks. WANs can extend across states and across
continents.
wide area network (WAN)
122
is a network configured with a central hub and individual cable segments connected to the hub, resembling the shape of a star.
Star Topology
123
Subject to interference from other light sources
Infrared
124
SMTP
Simple Mail Transfer Protocol
125
POP
Post Office Protocol
126
May not be feasible when high-speed communications are needed
Radio
Infrared
Microwave
127
Three main topologies
o Bus
o Ring
o Star
128
Pairs of insulated copper wires twisted together (for reduction of EMI
Twisted-Pair Cable
129
An alternative to using a communications cable
Wireless Networking
