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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. This layer supports flow control and sequencing.
204.51.170.85
Transport
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

2. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Bridge or switch
CA:F5:83:EB

3. 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.
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 & Physical
Network

4. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
Segments - packets - frames - bits

5. Logical addressing is used at this layer.
Transport
Fiber-opticcable
Network
The Transport layer user virtual circuits to create a reliable connection between two hosts.

6. Convert 172.16.20.55 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
10101100.00010000.00010100.00110111
Bridge or switch
Segments - packets - frames - bits

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

8. 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?
Router
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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

9. Which layer segments and reassembles data into a data stream?
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
Transport

10. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

11. What type of RJ45 UTP cable is used between switches?
00001010.00001011.00001100.01100011
Packet switching - Packet filtering - Internetwork communication - Path selection
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

12. Segmentation of a data stream happens at which layer of the OSI model?
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

13. This device creates one big collision domain and one large broadcast domain.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

14. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111

15. This device uses hardware addresses to filter a network.
Bridge or switch
Data Link (LLC sublayer)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer creates packets out of segments handed down from the Transport layer.

16. This device can never run full duplex.
Hub
The Transport layer segments user data.
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.
Data Link & Physical

17. Convert 10.11.12.99 to binary format.
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.
00001010.00001011.00001100.01100011

18. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Network
10101100.00010000.00010100.00110111
The Transport layer segments user data.
84:D2:43:B3

19. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

20. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.

21. Which layer is represented by bits?
Transport
10101100.00010000.00010100.00110111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.

22. 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?
To create more collision domains and to add more bandwidth for users.
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).
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.

23. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
RJ45 UTP crossover cable.
84:D2:43:B3
The Network layer provides routing through an internetwork and logical addressing.
Layer 4

24. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Router
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.

25. This device can measure the distance to a remote network.
Router
Transport
84:D2:43:B3
Data Link & Physical

26. 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?
Buffering - windowing - congestion avoidance
Decrease the window size.
Layer 4
Router

27. This layer creates a virtual circuit before transmitting between two end stations.
Transport
183/B7
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.

28. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7
Bridge or switch

29. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Segments - packets - frames - bits
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.

30. This layer uses service access points.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.
Hub
Data Link (LLC sublayer)

31. Ethernet is defined at these layers.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical
48 bits (6 bytes)
10101100.00010000.00010100.00110111

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
11000000.10101000.00001010.00001111
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85

33. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Transport
Hub
The Network layer provides logical addressing - typically IP addressing and routing.

34. Which layer is represented by segments?
The Transport layer segments user data.
Network
RJ45 UTP rolled cable.
Network

35. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link & Physical
Hub
183/B7
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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP rolled cable.
Router
Switch or bridge

37. Name three types of connections that can use full duplex.
Switch or bridge
Switch to switch - host to host - switch to host
Router
The Session layer creates sessions between different hosts' applications.

38. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Network
RJ45 UTP rolled cable.
Hub and repeater
CA:F5:83:EB

39. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
3 - 2 - 1 - none
Network
Network
D8:1B:3D:76

40. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer creates sessions between different hosts' applications.
Hub and repeater
Transport
Network

41. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Data Link
Transport

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Transport
00001010.00001011.00001100.01100011
Fiber-opticcable
The Session layer sets up - maintains - and terminates sessions between applications.

43. Why does the data communication industry use the layered OSI reference model? (Name two)
11000000.10101000.00001010.00001111
Router
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.
Fiber-opticcable

44. Which of the following are 3 common types of flow control?
Router
Buffering - windowing - congestion avoidance
204.51.170.85
The Data Link layer is responsible for the framing of data packets.

45. Convert 192.168.10.15 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
Buffering - windowing - congestion avoidance
11000000.10101000.00001010.00001111

46. What is the bit length and expression form of a MAC address?
Bridge or switch
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
11000000.10101000.00001010.00001111

47. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits
Switch or bridge
Transport

48. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link

49. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
RJ45 UTP rolled 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
11000000.10101000.00001010.00001111
Network

50. When data is encapsulated - which is the correct order?
The Session layer sets up - maintains - and terminates sessions between applications.
Data - segment - packet - frame - bit
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.