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Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to tra
RJ45 UTP rolled cable.
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.

2. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data - segment - packet - frame - bit
204.51.170.85
Fiber-opticcable
Data Link

3. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link (LLC sublayer)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none
48 bits (6 bytes)

4. What are two purposes for segmentation with a bridge?
Hub and repeater
Hub
Layer 4
To create more collision domains and to add more bandwidth for users.

5. A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
Data - segment - packet - frame - bit
Decrease the window size.
The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses).
Data Link (LLC sublayer)

6. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Network
Switch or bridge
Hub
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.

7. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer creates packets out of segments handed down from the Transport layer.
Network
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.

8. Name three types of connections that can use full duplex.
To create more collision domains and to add more bandwidth for users.
Transport
Switch to switch - host to host - switch to host
132.210.184.166

9. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.
Network

10. This device sends and receives information about the Network layer.
Transport
132.210.184.166
Router
To create more collision domains and to add more bandwidth for users.

11. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
Data Link & Physical

12. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
132.210.184.166
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

13. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Router
132.210.184.166
The Session layer sets up - maintains - and terminates sessions between applications.
Network

14. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
RJ45 UTP rolled cable.
Hub and repeater
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
198.211.57.209

15. Which layer is represented by segments?
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

16. This device creates one big collision domain and one large broadcast domain.
Transport
Hub
204.51.170.85
00001010.00001011.00001100.01100011

17. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Data Link layer frames packets received from the Network layer.
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4

18. Which layer is represented by packets?
00001010.00001011.00001100.01100011
The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses).
Layer 4
The Network layer creates packets out of segments handed down from the Transport layer.

19. Segmentation of a data stream happens at which layer of the OSI model?
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
RJ45 UTP crossover cable.

20. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
10101100.00010000.00010100.00110111
Switch or bridge
204.51.170.85

21. Which layer is responsible for keeping the data from different applications separate on the network?

22. Which layer provides logical addressing that routers will use for path determination?
RJ45 UTP rolled cable.
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for the electrical and mechanical connections between devices.

23. Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing - maintaining - and terminating virtual circuits; transport-fault detection recovery; and controlling the flow of information?
Switch to switch - host to host - switch to host
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

24. What is the bit length and expression form of a MAC address?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111
48 bits (6 bytes)

25. At which layer is routing implemented - enabling connections and path selection between two end systems?
Router
The Network layer provides routing through an internetwork and logical addressing.
183/B7
The Transport layer segments user data.

26. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
Buffering - windowing - congestion avoidance

27. This device can measure the distance to a remote network.
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
Router
132.210.184.166

28. This device breaks up collision domains and broadcast domains.
204.51.170.85
Hub
48 bits (6 bytes)
Router

29. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB

30. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.
11000000.10101000.00001010.00001111

31. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Physical layer is responsible for the electrical and mechanical connections between devices.
Layer 4
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.

32. Which layer is represented by bits?
Transport
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166

33. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to tra
183/B7
Switch to switch - host to host - switch to host

34. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP rolled cable.

35. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
183/B7
Transport

36. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
Hub
Decrease the window size.
Packet switching - Packet filtering - Internetwork communication - Path selection

37. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Data Link layer is responsible for the framing of data packets.
204.51.170.85
183/B7

38. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
Hub and repeater
Hub

39. Why does the data communication industry use the layered OSI reference model? (Name two)
It divides the network communication process into smaller and simpler components - thus aiding component development - design - and troubleshooting. It encourages industry standardization by defining what functions occur at each layer of the model.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Router

40. What is the purpose of flow control?
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
The Transport layer segments user data.

41. This device uses hardware addresses to filter a network.
10101100.00010000.00010100.00110111
Bridge or switch
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

42. Convert 192.168.10.15 to binary format.
Hub
Switch or bridge
11000000.10101000.00001010.00001111
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to tra

43. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
The Session layer creates sessions between different hosts' applications.
Transport

44. Which layer is represented by frames?
183/B7
The Data Link layer frames packets received from the Network layer.
In a CSMA/CD collision domain - stations must wait until the media is not in use before transmitting. After a collision - all stations run a random backoff algorithm. When the backoff delay period has expired - all stations have equal priority to tra
Transport

45. This layer creates a virtual circuit before transmitting between two end stations.
Transport
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

46. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
11000000.10101000.00001010.00001111
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.
Segments - packets - frames - bits

47. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field
183/B7

48. Convert 10.11.12.99 to binary format.
Switch or bridge
Buffering - windowing - congestion avoidance
Data Link
00001010.00001011.00001100.01100011

49. Logical addressing is used at this layer.
RJ45 UTP crossover cable.
Transport
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. Which layer segments and reassembles data into a data stream?
Hub and repeater
132.210.184.166
Transport
Hub

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