Net > 01 > Flashcards

01 Flashcards

(63 cards)

Study These Flashcards
1
Q

What are the reasons networking was created?

A

file sharing, email, device sharing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

connected computers are network memebers, often reffered to as ________

A

nodes or hosts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

a _______________ consists of a transmitter and a receiver, a transmission signaling method, and a medium to carry the signal

A

transmission method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What protocol suite was developed by Novell/Apple/IBM?

A

IPX/SPX, Appletalk, SNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a small area network, limited to a single collection of nodes?

A

LAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What links two or more separate areas/LANS and spans a relatively large area?

A

WAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

__________ Computers connect with each other in a workgroup to share files, printers, and internet access. There is no server

A

Peer-to-Peer network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

_________ There is usually a central server to which all computers communicate with

A

Client-Server Network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the two fundamental roles any computer plays in a network?

A

Client, server

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

The _______ is a globally interconnected, end-to-end set of information capabilities for collecting, processing, storing, disseminating, and managing information used by war fighters, policy makers, and support personal

A

DoDin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

_________ is the DoD’s unclassified but sensitive internet protocol Router Network

A

NIPRnet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

_________ is the military’s classified tunnel carried over NIPRNET. It provides a secure transmission of data up to the secret classification level

A

SIPRnet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

________ Is the DoD’s network handling up to top secret classified information, a collection of equipment and circuits that are independent of the internet

A

JWICS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What network topology is daisy chained and what are its disadvantages?

A

bus, if one node every node fails after it goes down.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What topology has a concentrator/hub device that acts as a central point for all cabling and what are its disadvantages?

A

star, If the host/server fails then all the nodes go down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What topology connects devices in a complete ring and what are its disadvantages?

A

ring, failure of one node brings down the whole network

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What network topology is IEEE 803.5/token

A

Token ring, you can only talk if you have the talking stick

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What topology has every device connect to every other device via more than one route?

A

mesh

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

A ______ consists of at least two machines with redundant connections

A

partial mesh

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A ________ is an organized grouping of devices where every device connects to one another

A

full mesh topology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What formula tells you the number of connections you need for a network?

A

n(n-1)/2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What topology combines the aspects of bus, star, or ring topologies into one network?

A

hybrid technology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What two topologies connect to a hub device and what makes them different?

A

Star, point-to-multipoint (computers communicate with a hub however they don’t speak directly to each other and only the hub device)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is sued to carry communication signals and what attributes tell you they type to use?

A

network medium, network topology, protocol, size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What are the characteristics of coaxial cables?
a single copper conductor at its center, a plastic cladding that provides insulation between the center conductor, and a braided metal conductor that serves as a shield
26
What is Twisted pair cabling and its two types?
multiple pairs of copper wire twisted along the length of the cable. STP(Sheileded, includes cladding) UTP(Unshielded)
27
What categories of twisted pair are there?
CAT 1,8,5,6
28
straight through cables is for connecting __________
different devices
29
cross over cables is for connecting _________
like devices
30
________ transmits pulses of lights rather then electrical signals eliminating the problem of EMI, radio frequency interference, or inductance.
fiber optic
31
What grade is single-mode in a fiber optic cable?
single strand of small diameter glass fiber providing a single transmission path (fast but less data, long distance)
32
What grade is multi-mode in a fiber optic cable?
larger diameter core then single mode and supports multi propagation paths and data streams (slow but more data, short distance)
33
What is a Wireless Access Point?
translates between the wireless and wired networks
34
What is a Service Set Identifier?
network name, that uniquely designates and separates each wireless network
35
What is Baseband?
uses only a single fixed frequency to send a signal that occupies the cables entire carrying capacity (can only send/receive one way)
36
What is Broadband?
carries multiple channels on a single cable, where one channel is required to send and another to receive (can send/receive both ways at the samtetime)
37
What is data signaling methods and its two types?
used to carry transmitted signals on network media. digital carries data using two values of elecetrical voltage (off/on) Analog: continues varying waveform data like sound
38
What is a modem?
devices that convert a digital to analog signal and vice versa
39
___________ is the combination of voice, data, video, pictures, and many other features available today
Digital and telecommunications convergence
40
The _______ is the world's collection of interconnected voice-oriented public telephone networks, What shares the same structure as this?
PTSN, Internet
41
Digital signal (DS) and Trunk (T) standards are used to describe digital data circuits on many type of connections from ________ Optical Carrier (OC) use _________
copper, fiber optic, wireless (everything) only fiber optic
42
__________ Is an international communications standard for sending voice, data, and video over telephone lines.
Integrated devices Digital Network (ISDN)
43
_______ Is a modulation scheme to pack data onto copper lines or existing telephone lines, what do each of the three types do? Asymmetric DSL Symmetric DSl Very High Bitrate DSL
Digital subscriber line faster downstream equal data rates up to 100mbs
44
_____ supports data, voice, and video in real time using 53-byte fixed length cells
ATM
45
________ is a high-speed, digital networking standard that soecfies data rates over fiber optic conenctions *ATM for fiber optic
SONET
46
The area on the earth that satellite signals hit is called the _______
footprint
47
_________ orbit below 12000 miles and tend to orbit the earth multiple times per day
low-orbit satellites
48
In _______ the satellite appears to hang motionless over a point on the equator
Geostationary orbit
49
An _______ tranists an oval shaped path and comes closest to the earth at a point called the ______ The orbital path farthest form the earth is called the _______
elliptical orbit, perigee, apogee
50
_________ networking services such as data video, voice, and fax information delivered using geostationary satellites *starlink
VSAT
51
What topology involves only one satellite hop to complete the path?
Mesh Topology
52
What topology involves two satellite hops to complete the path?
Star Toplogy
53
In VSAT what is a point-to-point communication?
Communications occur between two or more earth stations.
54
In VSAT what is a point-to-multipoint communication?
one transmitter and multiple receivers
55
In VSAT what is a multipoint-to-point communication?
multiple transmitters and one receiver acting as a hub
56
__________ is a control system architecture that uses a unified concept of computers, sensors, network data communications
Supervisory control and data Aquisition (SCADA)
57
________ is a family of protocols developed in 1979 that is used for SCADA communications
Modbus
58
What are some limitations of Modbus RTU?
slow transfer speeds, length limit of 10 feet
59
What is ModBus TCP?
allows Modbus communications to be transmitted over ethernet
60
What can be used to describe SCADA Architectures?
Automation Pyramid
61
What are the levels of the automation pyramid? Managment Planning Supervisory Control Field
management(ERP, suite of applications that oversee everything) Planning(MES, keeps performance and statistics) Supervisory(HMI, engineer dude monitoring everything) Control(PLCs logic gates, turn off at this time) Field(senors, detectors, hardware, etc)
62
What is a Heartbeat network
One node dies then another node takes over
63
What are the benefits of modern SCADA systems?
flexibility, open-source system design, using the cloud
Net
flashcards
Decks in class (6)
# Cards
Brainscape helps you reach your goals faster, through stronger study habits.
© 2026 Bold Learning Solutions. Terms and Conditions