Question 1

What type of logical topology is at work when using an Ethernet hub?

Accepted Answer

A)  logical bus 
B)  logical ring 
C)  switched topology 
D)  hierarchical topology 
A)  logical bus 
B)  logical ring 
C)  switched topology 
D)  hierarchical topology A

Question 2

What is the hidden node problem on Wi-Fi networks and what can be used to counteract the problem?

Accepted Answer

It's quite possible that in a three-station wireless network, all workstations can communicate with the AP: For example, workstation A can hear workstation B and workstation B can hear workstation C, but workstation A can't hear workstation C, perhaps because the two are out of range. This situation is called the hidden node problem. CSMA/CA doesn't work because workstation A never knows whether workstation C is sending, and vice versa. To counteract this problem, the 802.11 standards specify another feature that uses handshaking before transmission. If this feature is enabled, a station must send the AP a request-to-send (RTS) packet requesting transmission. If it's okay to transmit, the AP sends a clear-to-send (CTS) message, and the workstation starts its communication. All other devices communicating with the AP hear the exchange of RTS and CTS messages, informing them that another device has control of the medium.

Question 3

Match each item with a statement below.
a.logical topology
b.physical topology
c.mesh topology
d.point-to-point topology
e.collision
f.CSMA/CA
g.CSMA/CD
h.media access method
i.broadband
j.baseband
-sends a digital signal using the entire bandwidth

Accepted Answer

j

Question 4

Which of the following is NOT true about 2.5/5GBaseT Ethernet?

Accepted Answer

A)  It is defined by 802.3bz. 
B)  It requires at least Cat 6A cabling. 
C)  It has a maximum distance of 100 meters. 
D)  It can be used as an uplink for 802.11ac networks. 
A)  It is defined by 802.3bz. 
B)  It requires at least Cat 6A cabling. 
C)  It has a maximum distance of 100 meters. 
D)  It can be used as an uplink for 802.11ac networks.

Question 5

What is the difference between a network's physical topology and its logical topology?

Accepted Answer

The physical topology of a network refer

Question 6

With which kind of Wi-Fi antennas does the signal radiate out with equal strength in all directions?

Accepted Answer

A)  Omnidirectional 
B)  Unidirectional 
C)  Multidirectional 
D)  Semidirectional 
A)  Omnidirectional 
B)  Unidirectional 
C)  Multidirectional 
D)  Semidirectional

Question 7

The physical bus topology is no longer used because it required extra cable and a central device to connect all the computers.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is the physical topology that is daisy-chained like a bus where the cabling is brought around from the last device to the first device?

Accepted Answer

A)  physical bus 
B)  physical star 
C)  physical ring 
D)  point-to-point 
A)  physical bus 
B)  physical star 
C)  physical ring 
D)  point-to-point

Question 9

In a large network, in which several switches need to be connected together, usually one device is placed at the center, forming a(n) ____________ star.

Accepted Answer

The answer of In a large network, in which several...

Question 10

With a ___________________ antenna, signals are focused in a single direction, which makes them ideal for placement at one end of long, narrow spaces or to cover distances between buildings.

Accepted Answer

The answer of With a ___________________ antenna, signals are focused...

Question 11

Which of the following is true about collisions?

Accepted Answer

A)  They can only happen with switches. 
B)  They are a problem with Token Ring networks. 
C)  They can occur on Ethernet half-duplex networks. 
D)  Fewer computers means more collisions. 
A)  They can only happen with switches. 
B)  They are a problem with Token Ring networks. 
C)  They can occur on Ethernet half-duplex networks. 
D)  Fewer computers means more collisions.

Question 12

Which of the following is NOT an advantage of a physical star?

Accepted Answer

A)  easier network upgrades 
B)  centralized monitoring and management of traffic 
C)  use of faster technologies 
D)  single point of failure 
A)  easier network upgrades 
B)  centralized monitoring and management of traffic 
C)  use of faster technologies 
D)  single point of failure

Question 13

What is the most common topology and technology combination in use today?

Accepted Answer

A)  logical bus / Ethernet 
B)  logical bus / wireless LAN 
C)  logical ring / token ring 
D)  switched / Ethernet 
A)  logical bus / Ethernet 
B)  logical bus / wireless LAN 
C)  logical ring / token ring 
D)  switched / Ethernet

Question 14

A collision can occur on a switch only if the switch is operating in full-duplex mode.

Accepted Answer

A) True 
 B)False

Question 15

Match each item with a statement below.
a.logical topology
b.physical topology
c.mesh topology
d.point-to-point topology
e.collision
f.CSMA/CA
g.CSMA/CD
h.media access method
i.broadband
j.baseband
-direct connection between two devices

Accepted Answer

The answer of Match each item with a statement below.
a.logical...

Question 16

What happens to Wi-Fi signals when they pass through solid objects like walls?

Accepted Answer

A)  Diffraction occurs and the signals are amplified. 
B)  Scattering and multipath occurs. 
C)  Absorption occurs and the signals attenuate. 
D)  Reflections occur causing attenuation. 
A)  Diffraction occurs and the signals are amplified. 
B)  Scattering and multipath occurs. 
C)  Absorption occurs and the signals attenuate. 
D)  Reflections occur causing attenuation.

Question 17

Which of the following is NOT a characteristic of Unshielded Twisted Pair cabling?

Accepted Answer

A)  contains four pairs of copper wire 
B)  susceptible to electrical interference 
C)  maximum speed is 100 Mbps 
D)  comes in numbered categories 
A)  contains four pairs of copper wire 
B)  susceptible to electrical interference 
C)  maximum speed is 100 Mbps 
D)  comes in numbered categories

Question 18

A network's logical topology often depends on the central device's electronics.

Accepted Answer

A) True 
 B)False

Question 19

When a wireless computer connects with an AP before it connects with other devices, it is operating in ____________ mode.

Accepted Answer

The answer of When a wireless computer connects with an...

Question 20

Which Ethernet standard specifies speeds of 40 and 100 Gbps and can run up to 7 meters over copper?

Accepted Answer

A)  802.3ae 
B)  802.3z 
C)  802.3u 
D)  802.3ba 
A)  802.3ae 
B)  802.3z 
C)  802.3u 
D)  802.3ba

What type of logical topology is at work when using an Ethernet hub?

What is the hidden node problem on Wi-Fi networks and what can be used to counteract the problem?

Match each item with a statement below. a.logical topology b.physical topology c.mesh topology d.point-to-point topology e.collision f.CSMA/CA g.CSMA/CD h.media access method i.broadband j.baseband -sends a digital signal using the entire bandwidth

Which of the following is NOT true about 2.5/5GBaseT Ethernet?

What is the difference between a network's physical topology and its logical topology?

With which kind of Wi-Fi antennas does the signal radiate out with equal strength in all directions?

The physical bus topology is no longer used because it required extra cable and a central device to connect all the computers.

Which of the following is the physical topology that is daisy-chained like a bus where the cabling is brought around from the last device to the first device?

In a large network, in which several switches need to be connected together, usually one device is placed at the center, forming a(n) ____________ star.

With a ___________________ antenna, signals are focused in a single direction, which makes them ideal for placement at one end of long, narrow spaces or to cover distances between buildings.

Which of the following is true about collisions?

Which of the following is NOT an advantage of a physical star?

What is the most common topology and technology combination in use today?

A collision can occur on a switch only if the switch is operating in full-duplex mode.

Match each item with a statement below. a.logical topology b.physical topology c.mesh topology d.point-to-point topology e.collision f.CSMA/CA g.CSMA/CD h.media access method i.broadband j.baseband -direct connection between two devices

What happens to Wi-Fi signals when they pass through solid objects like walls?

Which of the following is NOT a characteristic of Unshielded Twisted Pair cabling?

A network's logical topology often depends on the central device's electronics.

When a wireless computer connects with an AP before it connects with other devices, it is operating in ____________ mode.

Which Ethernet standard specifies speeds of 40 and 100 Gbps and can run up to 7 meters over copper?

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Exam 3: Network Topologies and Techapter: Nologies

What type of logical topology is at work when using an Ethernet hub?

What is the hidden node problem on Wi-Fi networks and what can be used to counteract the problem?

Match each item with a statement below. a.logical topology b.physical topology c.mesh topology d.point-to-point topology e.collision f.CSMA/CA g.CSMA/CD h.media access method i.broadband j.baseband -sends a digital signal using the entire bandwidth

Which of the following is NOT true about 2.5/5GBaseT Ethernet?

What is the difference between a network's physical topology and its logical topology?

With which kind of Wi-Fi antennas does the signal radiate out with equal strength in all directions?

The physical bus topology is no longer used because it required extra cable and a central device to connect all the computers.

Which of the following is the physical topology that is daisy-chained like a bus where the cabling is brought around from the last device to the first device?

In a large network, in which several switches need to be connected together, usually one device is placed at the center, forming a(n) ____________ star.

With a ___________________ antenna, signals are focused in a single direction, which makes them ideal for placement at one end of long, narrow spaces or to cover distances between buildings.

Which of the following is true about collisions?

Which of the following is NOT an advantage of a physical star?

What is the most common topology and technology combination in use today?

A collision can occur on a switch only if the switch is operating in full-duplex mode.

Match each item with a statement below. a.logical topology b.physical topology c.mesh topology d.point-to-point topology e.collision f.CSMA/CA g.CSMA/CD h.media access method i.broadband j.baseband -direct connection between two devices

What happens to Wi-Fi signals when they pass through solid objects like walls?

Which of the following is NOT a characteristic of Unshielded Twisted Pair cabling?

A network's logical topology often depends on the central device's electronics.

When a wireless computer connects with an AP before it connects with other devices, it is operating in ____________ mode.

Which Ethernet standard specifies speeds of 40 and 100 Gbps and can run up to 7 meters over copper?

Introduction to Computer Networks

Network Hardware Essentials

Network Media

Network Protocols

Ip Addressing

Network Reference Models and Standards

Network Hardware in Depth

Introduction to Network Security

Wide Area Networking and Cloud Computing

Network Operating System Fundamentals

Network Management and Administration

The Internet of Things

Troubleshooting and Support

Filters