Deck 4: Network Management

Question 1

Users of an access point share the transmission capacity of the access point.The throughput an individual user gets is called the ________.

A)rated speed
B)aggregate throughput
C)individual throughput
D)all of the above

Answer 1

C

Question 2

Which of the following is growing more rapidly?

A)network demand
B)network budgets
C)Both of the above are growing equally rapidly.

Answer 2

A

Question 3

Networking professionals only need to worry about the SDLC-not the SLC.

Answer 3

False

Question 4

Transmission speed normally is measured in bits per second.

Question 5

Transmission speed normally is measured in bytes per second.

Question 6

QoS is quantified through ________.

A)criteria
B)consensus
C)metrics
D)none of the above

Question 7

Performing an in-depth inventory of the current state of the company's network is called ________.

A)sensitivity analysis
B)GIGO analysis
C)validation
D)what-is analysis

Question 8

After performing what-is analysis,it is generally a good idea to perform gaps analysis.

Question 9

In QoS,the S stands for ________.

A)software
B)security
C)service
D)satisfaction

Question 10

Which of the following correctly orders metric prefixes from smallest to largest?

A)kilo, giga, mega
B)kilo, mega, giga
C)mega, kilo, giga
D)giga, kilo, mega

Question 11

Decisions that lock an organization into a specific vendor or technology option for several years are ________.

A)SDLC
B)SLC
C)strategic
D)legacy

Question 12

Which of the following is not a driving force for change in a company's technological infrastructure?

A)the introduction of disruptive applications
B)organizational change within the company
C)the normal continuing growth of application traffic demand
D)All of the above are driving forces for change.

Question 13

Which of the following is the managing of a system throughout its life?

A)SDLC
B)SLC
C)both A and B
D)neither A nor B

Question 14

Transmission speed is normally measured in ________.

A)bits per second
B)bytes per second
C)both of the above about equally
D)neither A nor B

Question 15

Users of an access point share the transmission capacity of the access point.The throughput they share is called the ________.

A)rated speed
B)aggregate throughput
C)individual throughput
D)all of the above

Question 16

Which of the following is written improperly?

A)170 Mbps
B)48.62Gbps
C)95.328 Gbps
D)All of the above are written properly.

Question 17

The systems development life cycle includes the operation of a system after its creation.

Question 18

Network managers do not need to worry very much about cost when making decisions.

Question 19

Throughput is ________.

A)the speed a network actually provides to users
B)a network's rated speed
C)both of the above
D)neither A nor B

Question 20

Throughput is a network's rated speed.

Question 21

Error rates should be measured when the network traffic ________.

A)is close to capacity
B)is functioning at a normal level
C)is functioning at an unusually low level
D)any of the above

Question 22

Downtime is the percentage of time that a network is available for use.

Question 23

Variability in delay is called ________.

A)jitter
B)variance
C)a QoS failure
D)latency

Question 24

An SLA for latency should specify a ________.

A)maximum latency
B)minimum latency
C)both A and B
D)neither A nor B

Question 25

The terms "latency" and "application response time" mean approximately the same thing.

Question 26

Availability is the percentage of time that a network is available for use.

Question 27

Jitter is a problem for ________.

A)streaming media
B)e-mail
C)both A and B
D)neither A nor B

Question 28

An SLA should specify the ________.

A)best case
B)worst case
C)both A and B
D)neither A nor B

Question 29

The Public Switched Telephone Network is designed to be available 99.999% of the time.

Question 30

Which typically is designed to be available at least 99.999% of the time?

A)the telephone network
B)data networks
C)both A and B
D)neither A nor B

Question 31

________ is the percentage of time that a network is available for use.

A)Availability
B)Downtime
C)QoS
D)None of the above

Question 32

Latency is usually measured in ________.

A)bits per second (bps)
B)milliseconds (ms)
C)minutes of downtime
D)none of the above

Question 33

Jitter is a problem for ________.

A)voice over IP (VoIP)
B)streaming media
C)both A and B
D)neither A nor B

Question 34

When a packet travels through a network,the time it takes to get from the sender to the receiver is called ________.

A)latency
B)milliseconds
C)jitter
D)throughput

Question 35

Who is normally in charge of managing application response time?

A)networking
B)security
C)application and host managers
D)nobody

Question 36

Variability in delay is called jitter.

Question 37

Which of the following usually has higher availability?

A)data networks
B)the Public Switched Telephone Network
C)Both of the above usually have equal availability.

Question 38

Companies should measure error rates when traffic levels are low in order to have a good understanding of error rate risks.

Question 39

An access point has a total throughput of 100 Mbps.Twenty-five users are working at laptops that use the access point.The speed a particular user will get at any particular moment is likely to be ________.

A)100 Mbps
B)4 Mbps
C)neither of the above

Question 40

The percentage of packets that are lost or damaged during delivery is called the ________.

A)packet error rate
B)bit error rate
C)neither A nor B

Question 41

Low cost is an advantage of ________.

A)full mesh leased line networks
B)pure hub-and-spoke networks
C)both A and B
D)neither A nor B

Question 42

A packet will definitely get through if it has ________.

A)QoS reserved capacity
B)high priority
C)both A and B

Question 43

Reliability is an advantage of ________.

A)full mesh networks
B)pure hub-and-spoke networks
C)both A and B
D)neither A nor B

Question 44

Broadcasting is used in the ________ topology.

A)mesh
B)hierarchical
C)bus
D)none of the above

Question 45

Which type of network typology is less expensive to operate?

A)full mesh leased-line networks
B)pure hub-and-spoke leased line networks
C)Both A and B cost about the same to operate.

Question 46

Overprovisioning is adding much more switching and transmission line capacity than will be needed most of the time.

Question 47

What topology do radio transmission networks normally use?

A)mesh
B)hierarchical
C)bus
D)none of the above

Question 48

If a carrier does not meet its SLA guarantees,it generally must pay a penalty to its customers.

Question 49

Most corporate leased line networks are ________.

A)full mesh leased line networks
B)pure hub-and-spoke leased line networks
C)both of the above
D)neither A nor B

Question 50

An SLA for availability should specify a ________.

A)maximum availability
B)minimum availability
C)both A and B
D)neither A nor B

Question 51

Overprovisioning is ________.

A)wasteful of capacity
B)highly labor-intensive
C)both A and B
D)neither A nor B

Question 52

Overprovisioning means ________.

A)assigning high priority to latency-intolerant applications while giving low priority to latency-tolerant applications
B)adding much more switching and transmission line capacity than will be needed most of the time

Question 53

________ is the physical arrangement of a network's computers,switches,routers,and transmission lines.

A)Network architecture
B)Network topology
C)Network layout
D)None of the above

Question 54

In the ________ topology,there are only two nodes.

A)mesh
B)hierarchical
C)bus
D)point-to-point

Question 55

Priority is more labor-intensive than overprovisioning.

Question 56

In the ________ topology,there are many possible paths between two end nodes.

A)mesh
B)hierarchial
C)both A and B
D)neither A nor B

Question 57

In the ________ topology,there is only a single possible path between two end nodes.

A)mesh
B)hierarchical
C)both A and B
D)neither A nor B

Question 58

Which of the following can be used in a complex topology?

A)mesh
B)hierarchy
C)both A and B
D)neither A nor B

Question 59

Priority is assigning high priority to ________ applications while giving low priority to ________ applications.

A)latency-tolerant, latency-intolerant
B)latency-intolerant, latency-tolerant

Question 60

Topology is a ________ layer concept.

A)physical
B)data link
C)both A and B
D)neither A nor B

Question 61

The price of hardware before adding components that will be needed in actual practice is called the ________ price.

A)total
B)base
C)preliminary
D)none of the above

Question 62

Firms generally make their own routers and switches,rather than purchasing them.

Question 63

Carrier costs are a factor in the systems life cycle.

Question 64

Which of the following is not one of the categories of SDLC costs?

A)hardware costs
B)software costs
C)carrier costs
D)outsourcing development costs

Question 65

________ can help reduce the traffic coming into a network.

A)Traffic shaping
B)Compression
C)Both A and B
D)Neither A nor B

Question 66

Priority restricts traffic entering the network at access points.

Question 67

A solution fails to be scalable if it is ________.

A)too expensive at higher traffic volumes
B)unable to grow to meet higher traffic volume
C)both A and B
D)neither A nor B

Question 68

Traffic shaping can ________.

A)filter out unwanted traffic
B)limit some traffic to a certain percentage of total capacity
C)both A and B
D)neither A nor B

Question 69

If a product fails to meet minimum requirements,________.

A)it should be dropped from further consideration
B)it may still be the best product after you have conducted a multicriteria analysis

Question 70

The cost of a system over its entire life cycle is called the ________.

A)total cost of ownership
B)base price
C)both A and B
D)neither A nor B

Question 71

The total cost of ownership is the cost of a system during its systems development life cycle.

Question 72

Carrier costs occur during the ________.

A)SLC
B)SDLC
C)both A and B
D)neither A nor B

Question 73

QoS guarantees help traffic even if the traffic is not given specific QoS guarantees.

Question 74

________ restricts traffic entering the network at access points.

A)Overprovisioning
B)Priority
C)QoS reservations
D)Traffic shaping

Question 75

To do compression,you need to have compatible equipment at the two ends of the network.

Question 76

The acronym OAM&P stands for ________.

A)organization, authorization, management, and planning
B)operations, administration, maintenance, and provisioning
C)operations, administration, management, and provisioning
D)organization, administration, maintenance, and planning

Question 77

Traffic shaping can substantially reduce a network's overall traffic.

Question 78

Data cannot be compressed unless it has redundancy.

Question 79

If a product fails to meet minimum requirements,it should be dropped from consideration.

Question 80

Hardware base prices usually give an accurate indication of the actual cost of using the hardware.