Network Topologies - Answer Sheet
Posted February 21st, 2007 by admin
1. In a basic Ring topology, if there is a line break, or if you are adding or removing a device anywhere in the ring this will bring down the network.
True False
Correct answer: True
Explanation: In an effort to provide a solution to this problem, some network implementations (such as FDDI) support the use of a double-ring. If the primary ring breaks, or a device fails, the secondary ring can be used as a backup.
2. Computers on a bus only listen for data being sent they do not move data from one computer to the next, this is called ?
active topology
passive topology
static topology
dynamic topology
Correct answer: passive topology
3. Ethernet is also known as ?
802.5
803.2
802.11b
802.3
Correct answer: 802.3
4. What topology provides each device with a point-to-point connection to every other device in the network ?
Star
Bus
Mesh
Hierarchical
Correct answer: Mesh
5. What type of topology is this ?
Mesh
Star
Hierarchical
Bus
Correct answer: Mesh
6. What type of topology is this ?
Mesh
Star
Hierarchical
Bus
Correct answer: Hierarchical
7. A line break at any point along the trunk cable in a Bus network will result in total network failure.
True False
Correct answer: True
8. Token Ring standards define services for the OSI, MAC sublayer of the data link layer, and what other layer ?
Application
Session
Physical
Network
Correct answer: True
9. Ethernet uses the Carrier Sense Multiple Access with Collision Detection access method.
True False
Correct answer: True
10. Fiber Distributed Data Interface, shares many of the same features as ?
Ethernet
Token rings
Wireless Ethernet
Correct answer: Token rings
Explanation: But FDDI has better fault tolerance because of its use of a dual, counter-rotating ring that enables thering to reconfigure itself in case of a link failure. FDDI also has higher transfer speeds, 100 Mbps for FDDI, compared to 4 - 16 Mbps for Token Ring.
11. Mesh topologies are the least expensive and are easier to maintain.
True False
Correct answer: False
Explanation: Because each device has a point-to-point connection to every other device, mesh topologies are the most expensive and difficult to maintain.
12. Ring topology is an ?
active topology
static topology
passive topology
dynamic topology
Correct answer: active topology
13. What type of topology is this ?
Mesh
Star
Hierarchical
Bus
Correct answer: Bus
14. Wireless Ethernet, also known as ?
802.5
803.2
802.11b
802.3
Correct answer: 802.11b
15. Since most star topologies use twisted-pair cables, this makes the initial installation of star networks easier.
True False
Correct answer: True
16. If one computer fails in a star topology the network will continue to function.
True False
Correct answer: True
17. If computers are connected along a single cable this is called what type of topology ?
Star
Bus
Hierarchical
Mesh
Correct answer: Bus
18. The number of computers on a bus network will NOT affect network performance.
True False
Correct answer: False
Explanation: Since only one computer at a time can send data, the more computers you have on the network the more computers there will be waiting send data.
19. In a star topology, if a hub fails all computers connected to it will also be affected.
True False
Correct answer: True
20. Most Bus networks use what kind of cables ?
unshielded twisted-pair
10Base-T
100Base-TX
coax
Correct answer: coax
21. What is, or is becoming the topology of choice for networks ?
Bus
Star
Hierarchical
Mesh
Correct answer: Star