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Cisco Prep

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Router
Bridge or switch
Data Link

2. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data Link (LLC sublayer)
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.

3. What is the bit length and expression form of a MAC address?
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.
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)

4. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer frames packets received from the Network layer.
Switch or bridge
Segments - packets - frames - bits

5. Name four router functions.
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
RJ45 UTP rolled cable.
Packet switching - Packet filtering - Internetwork communication - Path selection

6. Which layer segments and reassembles data into a data stream?
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
132.210.184.166
Transport
RJ45 UTP crossover cable.

7. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' applications.
Source and destination MAC address and FCS field

8. This device breaks up collision domains and broadcast domains.
D8:1B:3D:76
Hub
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

9. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Hub
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

10. Which layer is represented by segments?
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
The Transport layer segments user data.
183/B7
Transport

11. This device can never run full duplex.
198.211.57.209
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
Buffering - windowing - congestion avoidance

12. Convert 192.168.10.15 to binary format.
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
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).
11000000.10101000.00001010.00001111

13. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
204.51.170.85
Fiber-opticcable
CA:F5:83:EB
Segments - packets - frames - bits

14. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
Layer 4
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.

15. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection

16. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
00001010.00001011.00001100.01100011
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
204.51.170.85

17. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Buffering - windowing - congestion avoidance
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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).
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.

18. What type of RJ45 UTP cable is used between switches?
Hub
Transport
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.

19. Which layer is represented by bits?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

20. Logical addressing is used at this layer.
132.210.184.166
Buffering - windowing - congestion avoidance
84:D2:43:B3
Network

21. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
3 - 2 - 1 - none
Layer 4
204.51.170.85
11000000.10101000.00001010.00001111

22. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
00001010.00001011.00001100.01100011
3 - 2 - 1 - none

23. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
RJ45 UTP crossover cable.
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
Data Link
To provide a means for the receiver to govern the amount of data sent by the sender.

24. This layer uses service access points.
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
198.211.57.209
Hub and repeater

25. This device can measure the distance to a remote network.
Router
Switch or bridge
The Presentation layer makes sure that data is in a readable format for the Application layer.
84:D2:43:B3

26. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link & Physical

27. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP crossover cable.
Segments - packets - frames - bits
Transport

28. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits
48 bits (6 bytes)
Fiber-opticcable

29. What are two purposes for segmentation with a bridge?
Fiber-opticcable
00001010.00001011.00001100.01100011
Switch or bridge
To create more collision domains and to add more bandwidth for users.

30. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
Data Link
RJ45 UTP rolled cable.

31. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
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.
00001010.00001011.00001100.01100011
48 bits (6 bytes)

32. This device creates one big collision domain and one large broadcast domain.
Hub
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.

33. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater
Transport

34. Which layer ensures the trustworthy transmission of data across a physical link and is primarily concerned with physical addressing - line discipline - network topology - error notification - ordered delivery of frames - and flow control?
Router
Segments - packets - frames - bits
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

35. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Hub
Segments - packets - frames - bits
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.

36. Which two fields are contained within an IEEE Ethernet frame header?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer sets up - maintains - and terminates sessions between applications.
Source and destination MAC address and FCS field
Hub and repeater

37. This device sends and receives information about the Network layer.
Hub
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.
Router
Switch or bridge

38. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
To create more collision domains and to add more bandwidth for users.
Transport

39. Ethernet is defined at these layers.
Data Link & Physical
Data Link
204.51.170.85
D8:1B:3D:76

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

41. 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?
Switch or bridge
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)
Decrease the window size.

42. Which layer provides logical addressing that routers will use for path determination?
Switch or bridge
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
The Network layer provides routing through an internetwork and logical addressing.

43. This layer supports flow control and sequencing.
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.
RJ45 UTP rolled cable.
Transport
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

44. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Layer 4
The Network layer creates packets out of segments handed down from the Transport layer.
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.

45. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
The Session layer sets up - maintains - and terminates sessions between 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.
The Physical layer is responsible for the electrical and mechanical connections between devices.

46. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Session layer creates sessions between different hosts' applications.
Data - segment - packet - frame - bit
Hub

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.
198.211.57.209
RJ45 UTP rolled cable.

48. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Transport
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.

49. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none

50. This device uses hardware addresses to filter a network.
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
Hub
D8:1B:3D:76