Question 1

Explain how the distributed backbone is connected. Include a description of its benefits.

Accepted Answer

A distributed backbone consists of a number of connectivity devices connected to one or more central connectivity devices, such as switches or routers, in a hierarchy. This kind of topology allows for simple expansion and limited capital outlay for growth, because more layers of devices can be added to existing layers.

Question 2

Without ____, a bus network would suffer from signal bounce.

Accepted Answer

A)  hubs 
B)  repeaters 
C)  terminators 
D)  jamming 
A)  hubs 
B)  repeaters 
C)  terminators 
D)  jamming C

Question 3

Briefly describe the IEEE 802.3af standard. Use an analogy and explain why it is useful.

Accepted Answer

In 2003, IEEE released its 802.3af standard, which specifies a method for supplying electrical power over Ethernet connections, also known as PoE (Power over Ethernet). Although the standard is relatively new, the concept is not. In fact, your home telephone receives power from the telephone company over the lines that enter your residence. This power is necessary for dial tone and ringing. On an Ethernet network, carrying power over signaling connections can be useful for nodes that are far from traditional power receptacles or need a constant, reliable power source.

Question 4

Given their long-distance capabilities, 10GBase-ER and 10GBase-EW are best suited for use on ____.

Accepted Answer

A)  VANs 
B)  MANs 
C)  LANs 
D)  WANs 
A)  VANs 
B)  MANs 
C)  LANs 
D)  WANs

Question 5

A ____ is simply a linked series of devices.

Accepted Answer

A)  star 
B)  star-wired ring 
C)  ring 
D)  daisy-chain 
A)  star 
B)  star-wired ring 
C)  ring 
D)  daisy-chain

Question 6

Explain the 5-4-3 rule of networking.

Accepted Answer

10Base-T follows the 5-4-3 rule of netwo

Question 7

Describe the advantage of the star topology.

Accepted Answer

Because they include a centralized conne

Question 8

Because of its support for multiple Network layer protocols and because it uses fewer bytes as overhead, ____________________ is the frame type most commonly used on contemporary Ethernet networks.

Accepted Answer

Ethernet I

Question 9

A physical topology ____.

Accepted Answer

A)  specifies device types 
B)  depicts a network in broad scope 
C)  specifies connectivity methods 
D)  specifies addressing schemes 
A)  specifies device types 
B)  depicts a network in broad scope 
C)  specifies connectivity methods 
D)  specifies addressing schemes

Question 10

Within an Ethernet frame, describe the FCS (Frame Check Sequence) field and explain how it is used to make the header.

Accepted Answer

All Ethernet frames contain a 4-byte FCS

Question 11

In packet switching, when packets reach their destination node, the node ____ them based on their control information.

Accepted Answer

A)  disassembles 
B)  deletes 
C)  reassembles 
D)  separates 
A)  disassembles 
B)  deletes 
C)  reassembles 
D)  separates

Question 12

The smallest LANs do not have a backbone.

Accepted Answer

A) True 
 B)False

Question 13

Within an Ethernet frame, describe what happens if fewer than 46 bytes of data are supplied by the higher layers.

Accepted Answer

If fewer than 46 bytes of data are suppl

Question 14

A ____ occurs when two transmissions interfere with each other.

Accepted Answer

A)  jam 
B)  collision 
C)  carrier sense 
D)  multiple access event 
A)  jam 
B)  collision 
C)  carrier sense 
D)  multiple access event

Question 15

Explain why it is important to understand logical topologies.

Accepted Answer

Understanding logical topologies is usef

Question 16

A network's access method is its method of controlling how network nodes access the communications channel.

Accepted Answer

A) True 
 B)False

Question 17

Explain how the star-wired bus topology works. Include a description of its drawbacks and benefits.

Accepted Answer

In a star-wired bus topology, groups of

Question 18

In a ring network, each workstation acts as a(n) ____ for the transmission.

Accepted Answer

A)  repeater 
B)  amplifier 
C)  terminator 
D)  manager 
A)  repeater 
B)  amplifier 
C)  terminator 
D)  manager

Question 19

A network ____________________ is the part of a network to which segments and significant shared devices connect.

Accepted Answer

The answer of A network ____________________ is the part of...

Question 20

A serial backbone is the simplest kind of backbone.

Accepted Answer

A) True 
 B)False

Explain how the distributed backbone is connected. Include a description of its benefits.

Without ____, a bus network would suffer from signal bounce.

Briefly describe the IEEE 802.3af standard. Use an analogy and explain why it is useful.

Given their long-distance capabilities, 10GBase-ER and 10GBase-EW are best suited for use on ____.

A ____ is simply a linked series of devices.

Explain the 5-4-3 rule of networking.

Describe the advantage of the star topology.

Because of its support for multiple Network layer protocols and because it uses fewer bytes as overhead, ____________________ is the frame type most commonly used on contemporary Ethernet networks.

A physical topology ____.

Within an Ethernet frame, describe the FCS (Frame Check Sequence) field and explain how it is used to make the header.

In packet switching, when packets reach their destination node, the node ____ them based on their control information.

The smallest LANs do not have a backbone.

Within an Ethernet frame, describe what happens if fewer than 46 bytes of data are supplied by the higher layers.

A ____ occurs when two transmissions interfere with each other.

Explain why it is important to understand logical topologies.

A network's access method is its method of controlling how network nodes access the communications channel.

Explain how the star-wired bus topology works. Include a description of its drawbacks and benefits.

In a ring network, each workstation acts as a(n) ____ for the transmission.

A network ____________________ is the part of a network to which segments and significant shared devices connect.

A serial backbone is the simplest kind of backbone.

An Introduction to Networking

Network Standards and the OSI Model

Transmission Basics and Networking Media

Introduction to TCP/IP Protocols

Network Hardware, Switching, and Routing

Wide Area Networks

Wireless Networking

In-Depth TCP/IP Networking

Virtual Networks and Remote Access

Network Security

Voice and Video Over IP

Troubleshooting Network Problems

Ensuring Integrity and Availability

Network Management

Filters

Exam 5: Topologies and Ethernet Standards

Explain how the distributed backbone is connected. Include a description of its benefits.

Without ____, a bus network would suffer from signal bounce.

Briefly describe the IEEE 802.3af standard. Use an analogy and explain why it is useful.

Given their long-distance capabilities, 10GBase-ER and 10GBase-EW are best suited for use on ____.

A ____ is simply a linked series of devices.

Explain the 5-4-3 rule of networking.

Describe the advantage of the star topology.

Because of its support for multiple Network layer protocols and because it uses fewer bytes as overhead, ____________________ is the frame type most commonly used on contemporary Ethernet networks.

A physical topology ____.

Within an Ethernet frame, describe the FCS (Frame Check Sequence) field and explain how it is used to make the header.

In packet switching, when packets reach their destination node, the node ____ them based on their control information.

The smallest LANs do not have a backbone.

Within an Ethernet frame, describe what happens if fewer than 46 bytes of data are supplied by the higher layers.

A ____ occurs when two transmissions interfere with each other.

Explain why it is important to understand logical topologies.

A network's access method is its method of controlling how network nodes access the communications channel.

Explain how the star-wired bus topology works. Include a description of its drawbacks and benefits.

In a ring network, each workstation acts as a(n) ____ for the transmission.

A network ____________________ is the part of a network to which segments and significant shared devices connect.

A serial backbone is the simplest kind of backbone.

An Introduction to Networking

Network Standards and the OSI Model

Transmission Basics and Networking Media

Introduction to TCP/IP Protocols

Network Hardware, Switching, and Routing

Wide Area Networks

Wireless Networking

In-Depth TCP/IP Networking

Virtual Networks and Remote Access

Network Security

Voice and Video Over IP

Troubleshooting Network Problems

Ensuring Integrity and Availability

Network Management

Filters