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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 device creates many smaller collision domains - but the network is still one large broadcast domain.
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.
Switch or bridge
Data Link

2. This layer uses service access points.
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

3. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer segments user data.
183/B7
Switch to switch - host to host - switch to host

4. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub
Data - segment - packet - frame - bit
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.
CA:F5:83:EB

5. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Switch to switch - host to host - switch to host
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 Presentation layer makes sure that data is in a readable format for the Application layer.

6. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Buffering - windowing - congestion avoidance
Data Link & Physical
Data - segment - packet - frame - bit

7. Convert 10.11.12.99 to binary format.
The Data Link layer is responsible for the framing of data packets.
Transport
00001010.00001011.00001100.01100011
Hub and repeater

8. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
183/B7

9. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical
204.51.170.85
Transport

10. This device can never run full duplex.
D8:1B:3D:76
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.
Network
Hub

11. Convert 10000100.11010010.10111000.10100110 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.
132.210.184.166
Router
Data Link (LLC sublayer)

12. Which layer is represented by segments?
Network
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.
183/B7

13. When data is encapsulated - which is the correct order?
3 - 2 - 1 - none
Segments - packets - frames - bits
Data Link (LLC sublayer)
Data - segment - packet - frame - bit

14. Logical addressing is used at this layer.
Network
Transport
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 Transport layer user virtual circuits to create a reliable connection between two hosts.

15. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater

16. This device uses hardware addresses to filter a network.
Router
Switch to switch - host to host - switch to host
Bridge or switch
204.51.170.85

17. What is the purpose of flow control?
48 bits (6 bytes)
Switch or bridge
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.

18. Convert 11000110.11010011.00111001.11010001 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.
Data Link & Physical
198.211.57.209
Router

19. This device creates one big collision domain and one large broadcast domain.
Transport
The Session layer creates sessions between different hosts' applications.
Hub
D8:1B:3D:76

20. 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
Hub
Router
Router
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).

21. Ethernet is defined at these layers.
The Network layer provides routing through an internetwork and logical addressing.
11000000.10101000.00001010.00001111
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.

22. Segmentation of a data stream happens at which layer of the OSI model?
The Data Link layer frames packets received from the Network layer.
183/B7
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

23. 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.
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 Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
RJ45 UTP rolled cable.
Hub

25. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Session layer creates sessions between different hosts' applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.

26. 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?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

27. Convert 192.168.10.15 to binary format.
Buffering - windowing - congestion avoidance
11000000.10101000.00001010.00001111
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7

28. Which layer is represented by packets?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.
Transport

29. 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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4
204.51.170.85

30. Convert 172.16.20.55 to binary format.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111
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

31. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Hub and repeater
RJ45 UTP rolled cable.
Switch or bridge
The Data Link layer is responsible for the framing of data packets.

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
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 Network layer provides routing through an internetwork and logical addressing.

33. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
CA:F5:83:EB
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link
RJ45 UTP rolled cable.

34. This device breaks up collision domains and broadcast domains.
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111
Transport
Router

35. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.

36. This device can measure the distance to a remote network.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
132.210.184.166
198.211.57.209

37. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
84:D2:43:B3
Data Link (LLC sublayer)
Layer 4
D8:1B:3D:76

38. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Network
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.

39. Which layer is represented by bits?
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
CA:F5:83:EB
RJ45 UTP rolled cable.

40. 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.
Router
Transport
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.

41. Which layer segments and reassembles data into a data stream?
Switch to switch - host to host - switch to host
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
Packet switching - Packet filtering - Internetwork communication - Path selection

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

43. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Source and destination MAC address and FCS field

44. This device sends and receives information about the Network layer.
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111
204.51.170.85
Router

45. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Bridge or switch
Decrease the window size.
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

46. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
11000000.10101000.00001010.00001111
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.
Router

47. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7
204.51.170.85

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

49. What type of RJ45 UTP cable is used between switches?
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

50. Which layer is represented by frames?
RJ45 UTP rolled cable.
Data - segment - packet - frame - bit
The Data Link layer frames packets received from the Network layer.
183/B7