Deck 9: Lan Architecture and Protocols

Question 1

One of the challenges when adopting a top down design approach to networks is that the company must understand the individual needs of each department and be responsive.

Answer 1

True

Question 2

A Storage Area Network (SAN)is a network specifically designed to allow specific servers the ability to share local storage devices with each other.

Answer 2

False

Question 3

Problems with using a single Local Area Network (LAN)to interconnect devices on a premise include

A)Insufficient reliability,limited capacity,and inappropriate network interconnection devices
B)Insufficient reliability,limited capacity,and limited distances
C)Insufficient reliability,limited distances,and inappropriate network interconnection devices
D)Limited distances,limited capacity,and inappropriate network interconnection devices
E)Limited distances,limited capacity,and limited sizes

Answer 3

A

Question 4

One rationale for not employing Local Area Network (LAN)technology for an entire premise is because there are differing levels of equipment,such as PCs,servers,and mainframes.

Question 5

Which of following is NOT one of the design that determines data rate and distance?

A)The number of senders
B)The number of receivers
C)Interference
D)Transmission impairment
E)Bandwidth

Question 6

One of the advantages of having a bottom up approach to building a LAN is that individual managers are very close to the group and therefore understand the needs of the department and can respond quickly .

Question 7

The fact that signal strength falls off with distance is called

A)bandwidth.
B)attenuation.
C)resistance.
D)propagation.
E)amplification.

Question 8

Which of the following is NOT on of the typical characteristics of back-end networks?

A)High data rate
B)High-speed interface
C)Distributed access
D)Extended distance
E)Small number of devices

Question 9

The major difference between Category 3 UTP and Category 5 UTP is that the latter uses a larger sized wire for the conductors.

Question 10

Back-end Networks are used in situations where a few large computers must be connected for low-volume data transfers.

Question 11

Which of the following is NOT one of the characteristics of a building wiring scheme using a structured cabling system?

A)The scheme refers to the wiring within a commercial building
B)The scheme must accommodate the need for separate cabling systems for each of data,voice,and video applications
C)The scope of the system includes cabling to support of all types of information transfer,including voice,LANs,video and image transmission,and other forms of data transmission
D)The cabling layout and cable selection is independent of vendor and end-user equipment
E)The cable layout is designed to encompass distribution to all work areas within the building,so that relocation of equipment does not require rewiring but simply requires plugging the equipment into a preexisting outlet in the new location

Question 12

When examining a MAC frame of data starting with the first bit,which of the following describes the order of the various headers found in the frame?

A)MAC,LLC,IP,and TCP
B)TCP,IP,MAC,and LLC
C)TCP,IP,LLC,and MAC
D)MAC,IP,TCP,and LLC
E)LLC,MAC,IP,and TCP

Question 13

Even for large companies,isolated personal computers are often more than sufficient for current computer based tasks.

Question 14

The capacity of optical fiber cable is more than 1000 times greater than coaxial cables.

Question 15

Which of the following is NOT one of the distinguishing characteristics for optical fiber cables compared with twisted pair or coaxial cables?

A)Greater capacity
B)Small size
C)Lower attenuation
D)Electromagnetic isolation
E)Heavier weight

Question 16

Coaxial cable is less susceptible to electromagnetic interference,but more expensive,when compared with twisted pair cables.

Question 17

Twisted pair wires are immune from all interference due to electromagnetic coupling because of the twisting of the wires.