Download Ch 6 Ques - Washburn University

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Transcript
Name: __________________________ Date: _____________
1. _____________ refers to having users who access the same data files, exchange
information via electronic mail, or search the Internet for information.
A) Resource sharing
B) User grouping
C) User profiling
D) Information sharing
E) Data pirating
2. ____________ refers to one computer legally sharing a software package, such as
Microsoft Word, with other computers on the network to save costs.
A) Software metering
B) Information sharing
C) Resource sharing
D) Software pirating
E) Network routing
3. A dedicated server LAN:
A) can only use simple LAN software
B) is limited to handling small databases
C) has one or more permanently assigned servers that can enable users to share files,
for example
D) can not connect with other networks
E) is limited to handling small files
4. Which of the following is not a critical software component in a dedicated server LAN?
A) application software on server computers
B) network operating system in the dedicated server
C) network communication software on the client
D) LAN metering software
E) application software on client computers
5. A(n) _____________ is not a common type of dedicated server.
A) file server
B) print server
C) database server
D) collision server
E) remote access server
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6. A(n) ____________ can permit users calling into a LAN remotely to retrieve their
email, for example.
A) print server
B) database server
C) file server
D) piconet server
E) remote access server
7. A peer-to-peer LAN:
A) has more capability than a dedicated server
B) supports a higher number of computers than a dedicated server
C) is generally cheaper in hardware and software than a dedicated server
D) is not appropriate for sharing resources in a small LAN
E) is often much faster than dedicated server networks
8. Which of the following is not a basic LAN component?
A) client
B) PAD
C) server
D) network interface card
E) network operating system
9. Which of the following is not an advantage of using Cat5 unshielded twisted pair for
cabling LANs?
A) cost (relative to fiber)
B) thickness (relative to coax)
C) weight (relative to coax)
D) flexibility (relative to coax)
E) security (relative to fiber)
10. Of the following, which is not true about fiber optic cable?
A) it is thinner than unshielded twisted pair cable
B) it is lighter than unshielded twisted pair cable
C) it has a very low capacity
D) it is more expensive than CAT5 unshielded twisted pair cable
E) it is a type of guided media
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11. Which of the following is not a purpose for using hubs in a network?
A) to act as a communications server
B) to connect network cables
C) to prevent attenuation
D) to act as a junction box
E) none of the above
12. Which of the following type of media is most commonly used in backbone networks
because of its high capacity?
A) fiber
B) infrared frequencies
C) coax cable
D) unshielded twisted pair
E) shielded twisted pair
13. Hubs:
A) usually incorporate repeaters or amplifiers
B) have connection points called handles
C) limit the distance of a network to a few meters in length
D) are a difficult method to connect network cables
E) operate at the application layer
14. __________ is not true with respect to network hubs.
A) Each port in a hub has a unique number.
B) A good network plan includes hubs in areas, such as a telecommunications wiring
closet, in which a network may expand
C) Simple hubs are commonly available in 4-, 8-, 16-, and 24-port sizes
D) Many hubs act as repeaters or amplifiers
E) Hubs provide a complicated way to connect network cables
15. _____________ is the software that controls the network.
A) Network Operating System
B) Client Operating System
C) Embedded Operating System
D) Network Control System
E) Network Software System
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16. The server version of the Network Operating System does not:
A) provide the software that performs the functions associated with the physical layer
B) provide the software that performs the functions associated with the data link layer
C) provide the software that performs the functions associated with the application
layer
D) provide the software that performs the functions associated with the network layer
E) usually provide the software that performs the functions associated with the
computer's own operating system
17. _____________ provide information about resources on the network that are available
to the users, such as shared printers, file servers and application software.
A) Network Services
B) Directory Services
C) Client Services
D) Computing Services
E) Remote Access Services
18. A _________ is a group of related resources.
A) workgroup
B) domain
C) server
D) client
E) sharepoint
19. A hierarchical tree of domains within one organization that are linked to other trees in
the organization is called a ___________.
A) ADS
B) domain
C) forest
D) tree
E) NDS
20. A __________ indicates what resources on each server are available on the network for
use by other computers and what people are allowed what access to the network.
A) user profile
B) user access log
C) network profile
D) network operating system
E) server allocation list
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21. The cheapest time to install network cabling is:
A) during the construction of the building
B) as soon as the building is completed
C) as soon as the building is occupied
D) about five years after the building is occupied so that the exact office locations for
each network computer is known
E) any time that a network needs to be installed
22. Ethernet LAN was developed by:
A) IBM
B) ARPANET
C) DEC, Xerox, and Intel
D) University of Minnesota
E) CERN laboratory in Geneva
23. ___________ is how the network works conceptually.
A) Physical topology
B) Logical topology
C) Network topology
D) Ethernet
E) Media access control
24. The type of logical topology that Ethernet uses is a:
A) ring
B) bus
C) star
D) mesh
E) interconnected
25. A logical bus topology:
A) is always used by token ring protocol LANs
B) has all computers connected to each other in point-to-point connections
C) is limited to short distances since devices like a hub or repeater cannot be used with
this type of topology
D) permits every message to be received by every computer on the bus, even when
those messages are intended for other computers
E) has a central control device, such as a mainframe
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26. Media access control refers to:
A) the price of fiber optic cable
B) security over floppy disks in a user environment
C) the ability for a user to use multimedia equipment in a LAN
D) controlling access to a media by more than one computer in a LAN
E) the control over coax cable installed by a cable service provider
27. Which of the following is not true about CSMA/CD?
A) The acronym refers to Carrier Sense Multiple Access with Collision Detection
B) It is used in token ring protocol LANs
C) It is a contention-based media access control technique
D) When a collision has occurred, the computers that wish to transmit wait a random
amount of time after a colliding message before attempting to retransmit
E) Computers on the circuit 'listen' while transmitting
28. _________ is not a type of Ethernet specification.
A) 100Base-T
B) 10GbE
C) 1000Base-T (1GbE)
D) 10Base-T
E) Securenet
29. 10Base-5:
A) supports 10 Mbps data rate
B) was the original Ethernet specification
C) is known as Thicknet
D) is capable of running 500 meters between hubs
E) all of the above
30. 1000 Base-T:
A) can run at either full- or half-duplex
B) is one of the oldest forms of Ethernet
C) is one of the slowest forms of Ethernet
D) can only be used over coaxial cables
E) has only one version, 1000Base-SLCX
Page 6
31. ________ is a hybrid version of Ethernet that uses either 10Base-T or 100Base-T.
A) Mullion Ethernet
B) Base-T Ethernet
C) 10/100 Ethernet
D) Token ring Ethernet
E) FDDI Ethernet
32. 10/100 Ethernet:
A) uses 100 Mbps throughout the entire network
B) is not useful in the short run for organizations that are uncertain about which
Ethernet standard to use
C) uses 10 Mbps throughout 100% of the entire network
D) provides traditional 10 Mbps Ethernet connections to client computers utilizing
traditional 10Base-T, with 100 Mbps generally used to the server
E) uses 10 Gbps throughout 100% of the entire network
33. Which of the following is not true about 10/100 Ethernet?
A) It is not a hybrid type of Ethernet.
B) It provides flexibility for organizations that want to use both the 10Base-T and
100Base-T standards at the same time.
C) 10/100 autosense hubs (and/or switches) are able to detect the signal transmitted by
the client's NIC and use 10 Mbps or 100 Mbps, depending on what the client uses.
D) Depending upon how it is configured, a 10/100 Ethernet NIC can run at either 10
Mbps or at 100 Mbps.
E) It provides flexibility for organizations that are uncertain about which Ethernet
standard to use in the short term.
34. Switched Ethernet:
A) uses a hub to connect computers
B) has a physical topology of a ring
C) has a logical topology of a ring
D) has a logical topology of a bus
E) usually enables all attached circuits to send or receive packets simultaneously
35. A switch uses a _____________ that is very similar to a routing table used in a router.
A) cable plan
B) forwarding table
C) network server
D) reversing table
E) switching mullion
Page 7
36. Which of the following is not true about layer-2 switched Ethernet?
A) A switch replaces the hub.
B) The physical topology is the same as the physical topology of shared Ethernet: a
ring.
C) The logical topology is a star.
D) The switch uses a forwarding table to route the packet to the correct
circuit/computer.
E) The switch chooses which packet to transmit first if it receives more than one
packet destined for the same computer at the same time, and stores the other
packet(s) temporarily.
37. Switched Ethernet:
A) always has a lower capacity than shared Ethernet.
B) operates at 50% of capacity before performance becomes a problem.
C) operates at about 95% of capacity before performance becomes a problem.
D) is affected by the increased collisions caused by using a switched LAN design.
E) decreases network performance because each computer is connected via a common
multipoint circuit.
38. Which of the following is not true about switched Ethernet?
A) The probability of collision is higher than with shared Ethernet.
B) It uses a switch instead of a hub.
C) It has faster connections (almost immediate) than traditional Ethernet.
D) It essentially provides a point-to-point connection between computers.
E) It has forwarding tables in which entries are learned over time.
39. Which of the following is a mode in which a switch operates:
A) fast learning switching
B) routing switching
C) fragment free switching
D) store switching
E) cut switching
40. Each of the circuits connected to a switch is a separate _______________ circuit
connecting the switch to a device on the network.
A) multipoint
B) point-to-point
C) shared
D) ring
E) star
Page 8
41. Traditional 10Base-T LANs can run effectively at about _________ percent.
A) 60
B) 50
C) 80
D) 95
E) 70
42. On a 10Base-T switched network with 10 computers, we could get a network capacity
of:
A) 60 Mbps
B) 50 Mbps
C) 80 Mbps
D) 95 Mbps
E) 70 Mbps
43. __________ is the maximum practical speed in bits that the hardware layers can be
expected to provide
A) Effective access time
B) Effective data rate
C) Latency
D) Network speed
E) Propagation delay
44. LAN bottlenecks are usually found at the:
A) data entry keyboard and client video monitors
B) LAN server and network circuit
C) hub repeaters and transducer circuit modules
D) client operating system and diskette drive
E) client hard drive and processor
45. Which of the following can provide fault tolerance for the storage space on a server?
A) RAID
B) SCSI
C) IDE
D) USB
E) EIDE
Page 9
46. Which of the following is not a potential bottleneck for LAN performance?
A) number and speed of hard disks in the server
B) amount of memory in the server
C) speed of server's CPU
D) network interface card
E) all of the above are potential bottlenecks for LAN performance
47. If your LAN server is overloaded, which of the following should you not consider (to
solve the server problem)?
A) adding one or more additional servers
B) upgrading the server's CPU with a faster CPU
C) increasing the amount of memory of the server
D) increasing the number and speed of hard disks in the server
E) replacing the cable with fiber optic cable
48. To increase the volume of simultaneous messages the LAN circuit can transmit from
network clients to the server(s), you can:
A) increase the CPU of the server
B) upgrade to a bigger circuit
C) increase the number of hard disks on the server
D) increase the amount of disk capacity of the server
E) increase the amount of memory of the server
49. Breaking a network into smaller parts is called network:
A) fragmentation
B) segmentation
C) localization
D) allocation
E) mitigation
50. Which of the following is not an effective way to reduce LAN network demand:
A) move files to client computers
B) use disk caching on the client machines
C) find an application that places a large demand on the network and run it a time
when the network is lightly loaded
D) add hidden nodes
E) shift the users' routines
Page 10