Ch. 17 * (Data Network Design)

Question 1

Physical design

Answer 1

Bottom up

Question 2

OSI Model

Answer 2

Open Systems Interconnection Model

Question 3

ISO (international organization for standardization) created OSI model in ___

Answer 3

1978

Question 4

7 layers

Answer 4

All People Seem To Need Domino’s Pizza

7. ) Application
8. ) Presentation
9. ) Session
10. ) Transport
11. ) Network
12. ) Data link
13. ) Physical

Question 5

Protocol stacks characteristics

Answer 5

Each layer provides a set of services
Services and the stack are defined by protocols
Lower layers provide services to upper layers
SAPs (service access points) are the connection points between layers

Question 6

Encryption

Answer 6

Layer 6

Question 7

All ‘S’ - synchronizing & start/stop

Answer 7

Layer 5

Question 8

Billing

Answer 8

Layer 4

Question 9

PAN

Answer 9

Personal area network

Question 10

CAN

Answer 10

Campus area network

Question 11

MAN

Answer 11

Metropolitan area network

Question 12

IEEE 802.3ah

Answer 12

Ethernet in the first mile (EFM)

Question 13

Loop distance

Answer 13

Approx. 20,000’

Question 14

DWDM

Answer 14

Dense wave division multiplexing

Question 15

NZDSF

Answer 15

Submarine

Question 16

Unicast

Answer 16

One recipient

Question 17

Broadcast

Answer 17

All devices

Question 18

Multicast

Answer 18

Select group

Question 19

Octet

Answer 19

Grouping of 8 bits

Question 20

MAC Address

Answer 20

48 bits

Hexadecimal

Question 21

Network address (IPv4)

Answer 21

32 bit

Question 22

IEEE 802.11

Answer 22

Wireless

Question 23

IEEE 802.5

Answer 23

Token ring

Question 24

IEEE 802.6

Answer 24

MAN

Question 25

IEEE 802.7

Answer 25

Broadband (BBTAG)

Question 26

IEEE 802.8

Answer 26

Fiber (FOTAG)

Question 27

Hardware component that connects a station to the network

Answer 27

NIC

Question 28

To improve traffic performance, use ___ technique

Answer 28

Traffic prioritization

Question 29

Hub

Answer 29

Half duplex

Question 30

Link aggregation

Answer 30

Multiple NICs

Question 31

Hot swap

Answer 31

No need for powering down

Question 32

Clustering

Answer 32

Multiple servers using link aggregation

Question 33

Print servers

Answer 33

Spool

Question 34

Before hubs there were ___

Answer 34

Shared cable networks

Question 35

Router

Answer 35

Specialized device combining hardware and software

Question 36

G.711

Answer 36

64 Kbps speech compression standard

Question 37

IEEE 802.1p

Answer 37

Traffic prioritization

Question 38

Most demanding network application

Answer 38

Videoconferencing

Question 39

Gateway

Answer 39

Communications

Used to connect dissimilar networks

Question 40

Gatekeeper

Answer 40

Operations

Question 41

MCU

Answer 41

Manages videoconferencing sessions

Question 42

___ addresses interoperability issues with VoIP

Answer 42

Protocol

Question 43

Multicasting

Answer 43

Intelligent

Question 44

Voice traffic is sensitive to ___

Answer 44

Loss & delay

Question 45

Not an active IEEE working group

Answer 45

802.2

Question 46

Resilient Packet Ring

Answer 46

802.17

Question 47

When message transfer is unsuccessful, ___ is necessary to request a retransmission

Answer 47

Confirmation

Question 48

Terms to describe a hub

Answer 48

Multiport repeater
MAU
Concentrator

Question 49

Directing a message to a group of devices

Answer 49

One-to-many

Question 50

Core set of standards for network multimedia

Answer 50

ITU-T

Question 51

Minimum station provisions

Answer 51

Display & input

Question 52

Ensures receiving device is listening

Answer 52

Synchronization

Question 53

System cutover

Answer 53

Invisible

Question 54

Functional design

Answer 54

Top down