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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. Which layer is represented by segments?
The Transport layer segments user data.
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
Buffering - windowing - congestion avoidance

2. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
The Transport layer segments user data.
84:D2:43:B3

3. This device uses hardware addresses to filter a network.
Source and destination MAC address and FCS field
Bridge or switch
Transport
10101100.00010000.00010100.00110111

4. Convert 192.168.10.15 to binary format.
Bridge or switch
11000000.10101000.00001010.00001111
48 bits (6 bytes)
84:D2:43:B3

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?
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)
Decrease the window size.
Switch to switch - host to host - switch to host

6. Which two fields are contained within an IEEE Ethernet frame header?
Hub and repeater
Layer 4
Router
Source and destination MAC address and FCS field

7. This device creates one big collision domain and one large broadcast domain.
Hub
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.

8. This layer uses service access points.
198.211.57.209
The Network layer provides routing through an internetwork and logical addressing.
Data Link (LLC sublayer)
D8:1B:3D:76

9. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
The Physical layer is responsible for the electrical and mechanical connections between devices.

10. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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
D8:1B:3D:76
Hub and repeater

11. 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.
Data Link (LLC sublayer)
132.210.184.166
Hub and repeater

12. Which layer chooses and determines the availability of communicating partners along with the resources necessary to make the connection - coordinates partnering applications - and forms a consensus on procedures for controlling data integrity and err
Source and destination MAC address and FCS field
CA:F5:83:EB
48 bits (6 bytes)
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).

13. 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?
The Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

14. Which layer provides logical addressing that routers will use for path determination?
Decrease the window size.
Data - segment - packet - frame - bit
84:D2:43:B3
The Network layer provides logical addressing - typically IP addressing and routing.

15. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Network layer provides logical addressing - typically IP addressing and routing.
Segments - packets - frames - bits
Data Link
The Session layer sets up - maintains - and terminates sessions between applications.

16. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To create more collision domains and to add more bandwidth for users.

17. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Layer 4
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.
The Data Link layer frames packets received from the Network layer.
Transport

18. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Packet switching - Packet filtering - Internetwork communication - Path selection

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

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20. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
Layer 4

21. Which layer segments and reassembles data into a data stream?
The Data Link layer is responsible for the framing of data packets.
Router
132.210.184.166
Transport

22. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Data Link layer is responsible for the framing of data packets.
183/B7
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.

23. Convert 10.11.12.99 to binary format.
Hub
00001010.00001011.00001100.01100011
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.
Router

24. 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.
Bridge or switch
198.211.57.209
Transport

25. Name three types of connections that can use full duplex.
Layer 4
To provide a means for the receiver to govern the amount of data sent by the sender.
Switch to switch - host to host - switch to host
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

26. This device can never run full duplex.
Hub
RJ45 UTP crossover cable.
Transport
Transport

27. Name four router functions.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance

28. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
84:D2:43:B3
Data Link & Physical

29. When data is encapsulated - which is the correct order?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.
Transport
Data - segment - packet - frame - bit

30. What type of RJ45 UTP cable is used between switches?
Transport
The Transport layer segments user data.
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

31. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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 crossover cable.
Router
The Network layer provides routing through an internetwork and logical addressing.

32. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

33. Logical addressing is used at this layer.
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).
Source and destination MAC address and FCS field
Network
Router

34. What are two purposes for segmentation with a bridge?
The Data Link layer is responsible for the framing of data packets.
Hub and repeater
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.

35. Segmentation of a data stream happens at which layer of the OSI model?
183/B7
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

36. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
To create more collision domains and to add more bandwidth for users.
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011

37. This device can measure the distance to a remote network.
132.210.184.166
00001010.00001011.00001100.01100011
183/B7
Router

38. Which layer is represented by packets?
CA:F5:83:EB
Switch or bridge
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Bridge or switch
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

40. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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.
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166

41. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
CA:F5:83:EB
RJ45 UTP crossover cable.
183/B7

42. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
Layer 4
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7

43. Which of the following are 3 common types of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance
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
Network

44. Convert 172.16.20.55 to binary format.
D8:1B:3D:76
10101100.00010000.00010100.00110111
Data Link
The Physical layer is responsible for the electrical and mechanical connections between devices.

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Hub and repeater
The Transport layer segments user data.
11000000.10101000.00001010.00001111

46. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
RJ45 UTP rolled cable.
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).
204.51.170.85

47. Ethernet is defined at these layers.
Router
Segments - packets - frames - bits
Data Link & Physical
Switch or bridge

48. This layer supports flow control and sequencing.
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport
00001010.00001011.00001100.01100011

49. Which layer is represented by frames?
Fiber-opticcable
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP rolled cable.
The Data Link layer frames packets received from the Network layer.

50. This device breaks up collision domains and broadcast domains.
Transport
Bridge or switch
Transport
Router