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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.
Transport
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
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).

2. Which two fields are contained within an IEEE Ethernet frame header?
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
Bridge or switch
Source and destination MAC address and FCS field

3. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Router
Switch to switch - host to host - switch to host
RJ45 UTP crossover cable.

4. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge

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?
Switch to switch - host to host - switch to host
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.

6. 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.
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

7. What type of RJ45 UTP cable is used between switches?
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.

8. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.
Transport

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

10. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Data Link (LLC sublayer)
84:D2:43:B3
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.
3 - 2 - 1 - none

11. When data is encapsulated - which is the correct order?
Router
Data - segment - packet - frame - bit
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

12. Which layer is represented by bits?
Switch to switch - host to host - switch to host
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.
48 bits (6 bytes)

13. Ethernet is defined at these layers.
To create more collision domains and to add more bandwidth for users.
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

14. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
204.51.170.85
CA:F5:83:EB
Data - segment - packet - frame - bit
Data Link (LLC sublayer)

15. Convert 10.11.12.99 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
00001010.00001011.00001100.01100011
The Data Link layer is responsible for the framing of data packets.
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.

16. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Layer 4

17. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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 Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer frames packets received from the Network layer.

18. This device can measure the distance to a remote network.
To create more collision domains and to add more bandwidth for users.
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

19. What is the bit length and expression form of a MAC address?
Transport
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)

20. 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?
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.

21. This device sends and receives information about the Network layer.
Router
Network
The Session layer creates sessions between different hosts' applications.
132.210.184.166

22. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
198.211.57.209
Transport

23. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Transport layer segments user data.
D8:1B:3D:76
Transport

24. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7
To create more collision domains and to add more bandwidth for users.
Data Link

25. Name four router functions.
Data Link
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB

26. 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 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
The Transport layer segments user data.

27. Which layer is represented by segments?
The Presentation layer makes sure that data is in a readable format for the Application layer.
CA:F5:83:EB
Hub and repeater
The Transport layer segments user data.

28. Segmentation of a data stream happens at which layer of the OSI model?
Data Link
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.
The Transport layer segments user data.

29. Name three types of connections that can use full duplex.
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host
Hub
84:D2:43:B3

30. Which layer is represented by frames?
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.
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.

31. Which layer is responsible for creating - managing - and terminating sessions between applications?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.

32. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Bridge or switch
84:D2:43:B3
The Transport layer segments user data.

33. Logical addressing is used at this layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Switch or bridge
The Data Link layer is responsible for the framing of data packets.

34. 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
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

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

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
11000000.10101000.00001010.00001111
The Network layer provides logical addressing - typically IP addressing and routing.

37. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Network layer creates packets out of segments handed down from the Transport layer.
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.
To create more collision domains and to add more bandwidth for users.

38. This device breaks up collision domains and broadcast domains.
Hub and repeater
Layer 4
Bridge or switch
Router

39. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Router
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.
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111

40. Which layer segments and reassembles data into a data stream?
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer creates packets out of segments handed down from the Transport layer.
Source and destination MAC address and FCS field

41. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
48 bits (6 bytes)
Hub
3 - 2 - 1 - none
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).

42. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
The Transport layer segments user data.
The Network layer provides logical addressing - typically IP addressing and routing.

43. What is the purpose of flow control?
Data Link (LLC sublayer)
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

44. This device uses hardware addresses to filter a network.
Bridge or switch
Router
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

45. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Hub
The Transport layer segments user data.
CA:F5:83:EB
Network

46. This layer creates a virtual circuit before transmitting between two end stations.
Switch or bridge
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
The Session layer creates sessions between different hosts' applications.

47. Convert 192.168.10.15 to binary format.
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
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.

48. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
Hub

49. This layer uses service access points.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link (LLC sublayer)
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.
Transport

50. What are two purposes for segmentation with a bridge?
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.
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
Fiber-opticcable