Name: 
 

VICA - Network Study Guide 2



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

The degredation of signal clarity is called ______________.
a.
attenuation
c.
signal loss
b.
interference
d.
weakening
 

2. 

__________ hubs usually amplify or repeat signals that pass through them.
a.
Passive
c.
Powered
b.
Active
d.
Dynamic
 

3. 

Hubs that are plugged into electric power are called ___________ hubs.
a.
passive
c.
powered
b.
active
d.
dynamic
 

4. 

A(n) ___________ topology often has a hub at its center.
a.
matrix
c.
hybrid
b.
linear bus
d.
star
 

5. 

A hub that merely connects different cables on the network and provides no signal regeneration is called a(n) ___________ hub and is not a repeater.
a.
passive
c.
powered
b.
active
d.
static
 

6. 

___________ operate at the Data Link layer of the OSI model.
a.
Repeaters
c.
Bridges
b.
Hubs
d.
Brouters
 

7. 

When machines must share the wire and compete for available bandwidth with other machines, they experience
________________.
a.
convection
c.
contention
b.
collisions
d.
contraction
 

8. 

TCP/IP and IPX/SPX protocols span the Network layer and the ____________ layer of the OSI reference model.
a.
Physical
c.
Network
b.
Data Link
d.
Transport
 

9. 

Routers operate at the ______________ layer of the OSI model.
a.
Physical
c.
Network
b.
Data Link
d.
Transport
 

10. 

_____________ utilize the IP address to route packets to the correct network segment.
a.
Routers
c.
Bridges
b.
Switches
d.
Repeaters
 

11. 

An IP address has _______ bits divided into four octets.
a.
16
c.
48
b.
32
d.
64
 

12. 

The binary equivalent of 168 is:
a.
11000000
c.
10100000
b.
10101000
d.
10110000
 

13. 

The binary equivalent of 192 is:
a.
11000000
c.
10100000
b.
11100000
d.
10110000
 

True/False
Indicate whether the sentence or statement is true or false.
 

14. 

Repeaters repeat the signal, as well as clean and boost the digital transmission.
 

15. 

Repeaters can reformat, resize, or otherwise manipulate the data packet.
 

16. 

Repeaters can tell the difference between a good signal and a corrupt signal.
 

17. 

Because repeaters work with the actual physical signal, and do not attempt to interpret the data being transmitted, they are Physical layer devices on the OSI model.
 

18. 

Repeaters work against attenuation by repeating signals that they receive on the network.
 

19. 

Because active hubs have multiple inbound and outbound connections, these hubs are known as multiport repeaters.
 

20. 

Repeaters create logical and/or physical divisions of the network.
 

21. 

Repeaters do not reduce network traffic because they repeat everything they receive.
 

22. 

Because repeaters simply repeat, amplify, and clean up a signal, network administrators mainly use them to increase the usable distance of the network.
 

23. 

Repeaters have little impact on network speed because they do not do any packet processing.
 

24. 

When a client sends a broadcast packet to the entire network, the bridge forwards the packet.
 

25. 

If the MAC address is located on a segment other than the originating segment, the bridge forwards it.
 

26. 

The bridge functions like a repeater in that it listens to incoming packets and repeats them on other segments.
 

27. 

Because bridges regenerate the network signal when they pass it from segment to segment, they can extend the cable's usable distance.
 

28. 

The fact that bridges forward broadcast traffic can be a major disadvantage on the network during a broadcast storm.
 

29. 

Broadcast traffic is a problem for switches because the hardware address indicates that all computers should receive the packet.
 

30. 

A switch reduces problems associated with multiple computers transmitting at the same time by subdividing the network into virtual circuits.
 

31. 

On Ethernet networks, only one computer can communicate on the LAN at a given time.
 

32. 

When two machines have a virtual circuit, they do not have to share the wire with any other computers.
 

33. 

Hardware, not software, implements IP addresses.
 

34. 

Each port on a router has its own unique IP address.
 

35. 

When TCP/IP is used on an internetwork, the logical address is known as an IP address.
 

36. 

Transport protocols used by the devices on a network dictate the format of the logical address.
 

37. 

The structure of an IP address makes it possible for devices to be uniquely identified on the network.
 

38. 

On an IP network, the logical addresses on a certain segment must be matched.
 

39. 

Routers maintain routing tables, which they use to route packets from one network to another.
 

40. 

Routing tables match network addresses with the address of the routers that handle those networks.
 

Completion
Complete each sentence or statement.
 

41. 

The number of ___________ on a network and the length of cable used influence the quality of communication on the network.
 

 

42. 

As data leaves the source or transmitting station, the ___________ converts the data to electrical impulses, if copper wire is used, or to light signals, if a fiber optic cable is used.
 

 

43. 

_____________ usually refers to the physical layout of network cable and devices.
 

 

44. 

A(n) __________ is a generic connection device used to tie several networking cables together to create a link between different stations on a network.
 

 

45. 

When the two simultaneous transmissions collide, the transmitting stations enter a(n) ______________ period.
 

 

46. 

A(n) _______________ filters traffic between network segments by examining the destination MAC address that is sent in the data packet.
 

 

47. 

Unlike bridges, the switching hub, opens a(n) _________ circuit between the source and the destination.
 

 

48. 

____________ provide filtering and network traffic control on LANs and WANs.
 

 

49. 

Instead of evaluating the physical address of a packet as do switches and bridges, routers use the ____________ address.
 

 

50. 

When binary IP addresses are written in decimal format, it is often called _________________.
 

 



 
Check Your Work     Reset Help