Buses Topologies, Protocols, and the OSI model

Question 1

Framing and error correction format of data transfer, flow control use

Answer 1

Data link Layer 2

Question 2

Channel for transfer of messages of one application process to another. Packet or frame accounting, improving reliability

Answer 2

Transport Layer 4

Question 3

Optimum routing of messaging from one network to another

Answer 3

Network Layer 3

Question 4

File transfer, message exchange, program use

Answer 4

Application Layer 7

Question 5

Data format, encryption, compression of data

Answer 5

Presentation Layer 6

Question 6

Organization, synchronization of same protocol applications between nodes

Answer 6

Session Layer 5

Question 7

Electrical and mechanical definition of the system, cables, voltages, etc

Answer 7

Physical Layer 1

Question 8

best describes protocol with respect to communication

Answer 8

A series of convention or standards that control or enable connections between two endpoints

Question 9

Character based flow control technique used in ASCII communication

Answer 9

XON/XOFF

Question 10

TCP/IP was originally invented/funded by

Answer 10

The United States Department of Defence

Question 11

The digital data using Analog signaling, data transmission method is associated with

Answer 11

HART and telephone modems

Question 12

The Analog data using Analog signaling, data transmission method is associated with

Answer 12

4-20 mA current loop and AM/FM radio

Question 13

CSMA/CD is an acronym that stands for

Answer 13

Carrier Sense Multiple Access/Collision Detection

Question 14

Communication arbitration is how each node shares the same network. - NOT a communication arbitration method

Answer 14

Point to Point

Question 15

NOT a sensor level protocol

Answer 15

HART

Question 16

NOT a device level protocol

Answer 16

LON

Question 17

The HART baud rate, “1” bit frequency and “0” bit frequency, restively is

Answer 17

1200bps, 1200 Hz, 2200 Hz

Question 18

A major advantage Foundation Fieldbus provides is

Answer 18

Peer to Peer communication

Question 19

The communication speed of an H1, Foundation Fieldbus segment is

Answer 19

31.25 Kbps

Question 20

AS-I but protocol allows for fast update rates from the combination of

Answer 20

167 KBaud, cyclic polling, limit of 31 slaves, 4 devices/per slave maximum

Question 21

Fieldbus protocol that uses Manchester encoding

Answer 21

Profibus

Question 22

When we transmit an Ethernet message, what OSI layer does TCP/IP come into

Answer 22

Transport Layer 4

Question 23

control Network protocol uses category 5e cabling for communications?

Answer 23

Foundation Fieldbus HSE

Question 24

Layer of the OSI model, handles framing and error correction, formatting of data, data transfer, flow control use, bus arbitration?

Answer 24

Layer 2-Datalink

Question 25

Layer of the OSI model, establishes the connection of two computers and manages their "meeting" over the internet?

Answer 25

Layer 3-Network

Question 26

NOT a characteristic of Device protocols

Answer 26

Functions are digital in nature, towards process sensing and manipulation

Question 27

Fundamental difference of Foundation Fieldbus-H1 compared to other device level protocols

Answer 27

Ability for the devices to process the algorithm

Question 28

Who invented the HART protocol?

Answer 28

Rosemount Measurement

Question 29

Proprietary protocol is a "for the good of all" protocol whose software code is shared by all members, and therefore members typically find solutions for all issues as a collective

Answer 29

False

Question 30

An open source protocol is one whose software code is kept secret by the software developer and sold to application users

Answer 30

False

Question 31

TCP/IP doesn't come into play until the need to traverse differing networks begins

Answer 31

True

Question 32

The advantage of FTP, is that it allows for many physically different networks, to be linked together, providing flexibility, regardless of differing physical and data link layers

Answer 32

False

Question 33

The Unix or Linux operating system is an open source type operating system.

Answer 33

True

Question 34

Many physically different networks, are capable of utilizing TCP/IP, providing flexibility, regardless of differing OSI layers 1 and 2

Answer 34

True

Question 35

A proprietary protocol is one whose software code is kept secret by the software developer and sold to application users

Answer 35

True

Question 36

Manchester encoding utilizes positive edge and negative edge encoding for 1s and 0s respectively

Answer 36

True

Question 37

Manchester encoding provides its own baud rate detection, by way of its waveform structure or characteristics

Answer 37

True

Question 38

A Ring network topology requires end-of-line resistors

Answer 38

False

Question 39

Device Networks focus on providing extra data from process instrumentation

Answer 39

True

Question 40

Sensor Networks, focus on providing data for IT applications, email, internet, SAP (single assess point), Microsoft Office Suite

Answer 40

False

Question 41

Frame collisions increase network bandwidth

Answer 41

False

Question 42

Device type Protocol functions, are analog in nature towards process control sensing and manipulation

Answer 42

True

Question 43

Foundation Fieldbus uses Manchester encoding as its bit arbitration method

Answer 43

True

Question 44

Control Network support multiple masters which allows peer to peer, client/server, publisher/subscriber communication techniques

Answer 44

True

Question 45

Asynchronous communication is often used with NRZ encoding

Answer 45

True

Question 46

Phase shift keying varies the phase angle of the transmitted signal to encode data, and incorporates what is known as a "dibit" from each sine waveform

Answer 46

True

Question 47

The CAN bus arbitration method, or who gets to talk on the network, looks for the first dominant node to communicate a 0 to 1 transition in the arbitration message

Answer 47

False

Question 48

Highway Addressable Remote transducer is the full name of HART protocol

Answer 48

True

Question 49

Modicon was the developer of the DeviceNet protocol

Answer 49

False