Deck 3: Network Topologies and Technologies

Question 1

What is the Ethernet frame type that is used by TCP/IP?

A) Ethernet 802.3
B) Ethernet 802.2
C) Ethernet II
D) Ethernet SNAP

Answer 1

C

Question 2

What type of logical topology does a Wireless LAN use?

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

Answer 2

A

Question 3

In a token ring network, what is the central device called?

A) multiport Ethernet switch
B) multiservice switch
C) multisession drive
D) multistation access unit

Answer 3

D

Question 4

What is the main advantage of a point-to-point topology?

A) data travels on a dedicated link
B) provides redundancy and fault tolerance
C) relatively inexpensive
D) a reliable and fast backbone

Question 5

When using UTP cabling, what is the maximum cable length that can be used from the NIC to a hub or switch?

A) 1 meters
B) 10 meters
C) 100 meters
D) 1000 meters

Question 6

What is the best way to eliminate the possibility of collisions in a network?

A) Only use switches.
B) Use higher speed hubs.
C) Use NICs that operate in full-duplex mode.
D) Both a and c

Question 7

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

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

Question 8

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

A) contains four pairs of copper wire
B) susceptible to electrical interference
C) operates in half-duplex only
D) comes in numbered categories

Question 9

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

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

Question 10

When discussing Ethernet standards, what does the XBaseY terminology refer to?

A) the length or type of cabling, the transmission speed, and the type of transmissions
B) the transmission speed, the type of transmissions, and the length or type of cabling
C) the transmission speed, the length or type of cabling, and the type of transmissions
D) the length or type of cabling, the type of transmissions, and the transmission speed

Question 11

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

Question 12

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

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

Question 13

A point-to-point topology is typically used for WAN connections.

Question 14

A network's physical topology refers to the arrangement of the cabling and how the devices connect to each other.

Question 15

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

A) easier network upgrades
B) centralized monitoring and management of traffic
C) use of faster technologies
D) provides redundancy and fault tolerance

Question 16

In a physical bus topology, both ends of the medium must be terminated in order to prevent what?

A) signal propagation
B) signal bounce
C) signal degradation
D) collision

Question 17

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

Question 18

What does the frame trailer consist of in an Ethernet frame?

A) source MAC address
B) destination MAC address
C) frame payload
D) cyclic redundancy check

Question 19

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

Question 20

What is the media access method used by Ethernet?

A) CSMA/CD
B) CSMA/CARP
C) CSMA/CA
D) CDMA

Question 21

Which of the following is NOT a component of an Ethernet frame header?

A) 6-byte destination MAC address field
B) 6-byte source MAC address field
C) 2-byte type field
D) 4-byte frame check sequence

Question 22

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.

Question 23

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

Question 24

MATCHING
Match each item with a statement below:

Question 25

What are the advantages and disadvantages of a physical star topology?

Question 26

A ___________ topology is fully redundant and is the most expensive to implement.

Question 27

The way that data travels in a network is referred to as the network's ____________ topology.

Question 28

What is the main disadvantage of cable modem networking?

A) The modems have to modulate and demodulate the signals.
B) It is only capable of speeds up to 60MBps and usually only delivers 10MBps.
C) It uses an asymmetrical communication scheme.
D) It uses a bus topology.

Question 29

What are the four wireless standards, and how are they different?

Question 30

In a physical bus topology, why do the ends of the cable have to be terminated?

Question 31

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

Question 32

What is the difference between operating in half-duplex mode or full-duplex mode and why does it eliminate collisions?

Question 33

What type of topology, both physical and logical, is implemented in a token ring network, and how does it work?

Question 34

The most popular LAN technology used today is ____________.

Question 35

What media access method does Wi-Fi use, and how is it different from Ethernet's?

Question 36

What is CSMA/CD and how does it work?

Question 37

In wireless networks, what type of media access control is used?

A) CSMA/CD
B) CSMA/CARP
C) CSMA/CA
D) CDMA

Question 38

Describe the structure of an Ethernet frame.

Question 39

What is the IEEE standard governing wireless networking?

A) 802.3
B) 802.5
C) 802.3ab
D) 802.11

Question 40

When a wireless computer uses a peer-to-peer connection to directly connect to another wireless computer, it is operating in what mode?

A) infrastructure
B) ad hoc
C) hot spot
D) Wi-Fi

Question 41

What are the four primary physical topologies? Briefly describe each one.