Deck 11: Lan and Wan Design: Putting It All Together

Question 1

Geosynchronous satellites orbit at 22,300 feet and require purchasing time from a provider or great expense to send up your own satellite.

Answer 1

True

Question 2

Once a network has been set up, you don't need to analyze the LAN topology and resources anymore.

Answer 2

False

Question 3

When you upgrade a network, obtain benchmarks of current network use and consider the traffic from specific devices.

Answer 3

True

Question 4

____ processing is particularly common on mainframe computers that process large volumes of data.

A)Load
B)First-in first-out
C)Balance
D)Batch

Question 5

A(n)multiple-cell wireless LAN design is used on small networks of up to about 20 to 25 users.

Question 6

The elevated cable is the vertical cable that goes between floors in a building.

Question 7

It is easiest to accommodate growth on a network designed around ____.

A)routers
B)switches
C)bridges
D)Both A and B.

Question 8

Modern networks employ both switches and hubs.

Question 9

When installing a network, install 802.11 wireless options in areas where cable is too expensive to install or where the installation obstacles are too great.

Question 10

When you create or upgrade a LAN, make sure to connect high speed workstations to high-speed switched ports .

Question 11

An RFP, if it is necessary, comes after an RFI.

Question 12

Amplification is simply the process of amplifying the carrier signal to simulate a collision.

Question 13

It is easier to grow a legacy 10Base2 traditional bus network than a legacy 10BaseT star-based network.

Question 14

If a multimedia application is designed to use broadcasting , the participating workstations are divided into one or more subscription groups. Each data stream is a one-time multimedia transmission that goes to multiple addresses, instead of a single transmission sent to each address.

Question 15

A(n)top-down network is a design theme where the network is centralized at strategic points.

Question 16

Interspersing hosts and servers throughout the network typically makes centralized management of hosts and servers more difficult.

Question 17

WAN vendor equipment ranges from banks of dial-up modems to a combination of channel banks and router interfaces.

Question 18

When installing cable, do not leave much extra at the endpoints, or it can get tangled and cause network errors.

Question 19

Structured wiring requires that intelligence is built into the chassis hubs or switches.

Question 20

Jamming can be used in either full- or half-duplex mode.

Question 21

____ standards are not used for fire and flame resistance related to cabling.

A)IEEE
B)UL
C)NEC
D)None of the above.

Question 22

A(n)____ is a device that smoothes out small and large fluctuations in the power delivered by the power company.

A)integrated power source
B)uninterruptible power supply
C)modulator
D)conditioned power source

Question 23

Which is not included in network capacity management?

A)the number of users
B)the need for new software
C)the network bandwidth needed to accommodate the load on each network segment
D)None of the above.

Question 24

When replacing older cable with newer cable ____.

A)expect the cable and connector costs of the newer cable to be higher than for the older cable
B)install the exact amount of cable you will need, as cable prices will probably go down by the time you need to add more cable
C)cable costs may be higher if there is a need to purchase plenum cable or EMI/RFI-resistant shielded cable
D)All of the above.

Question 25

Which is not true?

A)Like PCs, network equipment quickly becomes out of date.
B)Some equipment upgrades can be made by upgrading the accompanying software.
C)You should never combine the old with the new.
D)Some equipment cannot be upgraded and must be redeployed to another location or retired.

Question 26

Which is not an advantage of using fiber-optic cable for vertical wiring?

A)It enables you to scale the speed of your backbone for high-speed communications.
B)It is not affected by EMI or RFI.
C)It is subject to grounding issues as is true of copper cable.
D)None of the above.

Question 27

The maximum cable bend radius for four-pair twisted-pair cable is about ____ times the circumference of the cable.

A)two
B)four
C)eight
D)ten

Question 28

If you are replacing thinnet or Category 3 cable with Category 5 cable, you will have to upgrade thinnet NICs in devices with NICs compatible with ____ cable.

A)single-mode fiber-optic
B)coaxial
C)twisted-pair
D)multi-mode fiber-optic

Question 29

When designing a LAN, ____ is/are a good option for basic WAN connectivity.

A)frame relay
B)T-3 lines
C)satellite communications
D)DSL lines

Question 30

When you are installing a network, ensure that the tension when pulling twisted-pair cable does not exceed ____ pounds of force.

A)15
B)50
C)25
D)30

Question 31

Which is not a principle followed by the vertical wiring on your network?

A)It should deployed in an extended star topology between devices.
B)You should use high-speed cable, typically singlemode fiber-optic cable.
C)Install riser rated cable for cable runs through cable ports or vertical shafts.
D)None of the above.

Question 32

The maximum cable bend radius for more than four-pair twisted-pair cable is about ____ times the circumference of the cable.

A)two
B)four
C)eight
D)ten

Question 33

When designing a LAN, ____ is/are a good option for overseas connections.

A)frame relay
B)T-3 lines
C)satellite communications
D)DSL lines

Question 34

Bandwidth is not dependant on anticipated use of ____.

A)software applications
B)computers
C)network resources
D)None of the above.

Question 35

When designing a LAN, ____ is/are a good option to join LANs in neighboring states.

A)frame relay
B)T-3 lines
C)satellite communications
D)DSL lines

Question 36

When designing a LAN, ____ is/are a good option for universal access to a Web site used to market products.

A)frame relay
B)T-3 lines
C)satellite communications
D)DSL lines

Question 37

When installing a network, make sure all cable run distances fit the appropriate ____ specifications for the medium used.

A)ITU
B)CCITT
C)EIA/TIA
D)IEEE

Question 38

Which is not true?

A)As a network administrator, it is important that you work closely with the server administrator when a new network-accessible software application is installed.
B)Usually, a bus topology enables faster identification of problems than a star topology.
C)A network design that uses switches and routers is easier to monitor than one that has multiport repeaters.
D)None of the above.

Question 39

Structured wiring requires that there are high-speed links to ____.

A)hosts
B)servers
C)other network devices
D)All of the above.

Question 40

When you are installing a network, install ____ cable for long runs, such as for long distances between buildings.

A)single-mode fiber-optic
B)coaxial
C)twisted-pair
D)multi-mode fiber-optic

Question 41

The M in IGMP stands for ____.

A)Management
B)Multicasting
C)Meshed
D)Multiple

Question 42

In a ____ architecture for a WAN, there are multiple alternate pathways so that if one part of the network is disabled, the carrier is automatically rerouted to another path without the customer's knowledge.

A)redundant
B)duplication
C)meshed
D)webbed

Question 43

When setting up wireless MANs ____.

A)a small MAN ranging to about 300 feet can be set up using 802.11b
B)you may use a proprietary infrared design
C)proprietary radio wave options can be used to create MANs up to 30 miles
D)All of the above.

Question 44

Which is not an advantage of interspersing hosts and servers throughout the network?

A)It is cheaper.
B)Traffic is less concentrated.
C)There is flexibility in the event that a disaster destroys one location.
D)You can have redundant hosts at different locations, in case one host malfunctions or cannot be reached because of network problems.

Question 45

The figure above illustrates ____.

A)a peer-to-peer design for an 802.11a network
B)a peer-to-peer design for an 802.11b network
C)a multiple-cell design for an 802.11a network
D)a multiple-cell design for an 802.11b network

Question 46

Structured wiring requires the ability to isolate servers, but not hosts or other network devices, on their own cable segment.

Question 47

Which is not true about switches?

A)They are more expensive per port than routers.
B)They typically use circuit-based logic or an ASIC chip to provide fast algorithm-based processing.
C)They are easier to set up and administer than routers.
D)None of the above.

Question 48

A(n)____ is not used to connect a LAN or local site to a WAN.

A)ATM WAN access switch
B)multiplexor
C)specialized adapter
D)hub

Question 49

Older thinnet/thicknet cable plants cannot meet the high throughput requirements for traffic created by modern software and by software upgrades.

Question 50

____ is a protocol used in multicasting that contains addresses of recipient clients and is used by the server to tell a router which workstations belong to the multicast group.

A)DVMRP
B)IGMP
C)MOSPF
D)PIM

Question 51

Which is not an advantage of full-duplex?

A)It eliminates collisions.
B)It reduces network throughput.
C)It reduces the number of lost frames.
D)None of the above.

Question 52

The drawback to jamming is that ____.

A)it halts network traffic
B)currently active frames can be lost
C)it cannot be used in half-duplex mode
D)Both A and B.

Question 53

An example of a host or server ____ is a grouping of mainframes placed in a computer machine room.

A)conglomeration
B)farm
C)concentration
D)batch

Question 54

In a building with horizontal wiring, each floor represents a discrete unit of cabling.

Question 55

The advantage of using the extended star topology between floors is that it is easier to manage the number or repeater connections that a signal must cross.

Question 56

Routers enable you to ____.

A)segment networks
B)control network traffic
C)establish separate collision domains while ensuring faster flow of network traffic
D)Both A and B.

Question 57

Bridges cannot route traffic.

Question 58

RFP stands for ____.

A)requirements for processing
B)request for proposal
C)request for planning
D)redundant field plan

Question 59

The figure above illustrates ____.

A)a peer-to-peer design for an 802.11a network
B)a peer-to-peer design for an 802.11b network
C)a multiple-cell design for an 802.11a network
D)a multiple-cell design for an 802.11b network

Question 60

When designing a network, no special considerations are needed if users need to physically move around a building carrying a portable computer rather than sit at workstations on their desks.

Question 61

In the context of this book, ____________________ refers to installing cable that fans out in a horizontal star fashion from one or more centralized chassis switches or hubs located in telecommunications rooms or wiring closets.

Question 62

What is full-duplex? Where should it be used?

Question 63

When undertaking any LAN or WAN design objects, you must consider the costs. What are six elements for which you need to project costs?

Question 64

____________________ satellite WANs are scheduled to be available by 2005.

Question 65

When designing your network, you may want to have ____________________ so that traffic is rerouted and users never know when equipment is malfunctioning.

Question 66

Multimedia applications typically require high bandwidth.

Question 67

List the seven factors discussed in this chapter that affect a LAN or WAN design.

Question 68

What is a UPS, and when is it used?

Question 69

With regards to WANs, what is an SLA? What is it used for?

Question 70

____________________ is physically connecting two or more links between two network transmission devices to form an aggregate that is treated as one link that has the total speed of each link added together.

Question 71

What is an RFI? When is it used?

Question 72

When a network is first implemented, does it have redundancy or reliability requirements? Why or why not?

Question 73

A(n)___________________________________ is a customized integrated circuit on a chip that contains logic for a specific application, such as fast routing logic.

Question 74

List five disadvantages of older thinnet/thicknet cable plants.

Question 75

Structured networks allow the network administrator to segment the network according to workgroup patterns, using ____________________.

Question 76

For a peer-to-peer wireless LAN with 802.11a devices, all stations must be within a mutual range of about 60 feet to communicate with one another.

Question 77

If cable installation costs are high because of requirements to remove hazardous materials or because plenum cable is required, consider using ____________________ solutions as an alternative.

Question 78

The ____________________ is the lifeline of the network.

Question 79

____________________ is the saving of frames in memory until they can be sent on to their destination.

Question 80

When a device is new to the market, you should purchase it as soon as possible so that it is at the beginning of its EOL cycle.