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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 bits?
Switch to switch - host to host - switch to host
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link (LLC sublayer)
48 bits (6 bytes)

2. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Hub
D8:1B:3D:76
Switch or bridge
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. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer sets up - maintains - and terminates sessions between applications.
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

4. This device breaks up collision domains and broadcast domains.
To create more collision domains and to add more bandwidth for users.
Hub
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

5. What is the purpose of flow control?
The Transport layer segments user data.
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

6. Which layer is represented by segments?
The Data Link layer frames packets received from the Network layer.
Data - segment - packet - frame - bit
The Transport layer segments user data.
132.210.184.166

7. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link
Hub and repeater
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 Physical layer is responsible for the electrical and mechanical connections between devices.

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

9. Convert 172.16.20.55 to binary format.
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.
Transport
10101100.00010000.00010100.00110111

10. This device creates one big collision domain and one large broadcast domain.
D8:1B:3D:76
Hub
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
198.211.57.209
Router

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
132.210.184.166
RJ45 UTP crossover cable.
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).

13. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7

14. This layer creates a virtual circuit before transmitting between two end stations.
Hub
Transport
The Presentation layer makes sure that data is in a readable format for the Application 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.

15. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
Router
Transport
Data Link

16. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Transport
The Transport layer segments user data.
The Physical layer is responsible for the electrical and mechanical connections between devices.

17. Which layer provides logical addressing that routers will use for path determination?
Transport
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides logical addressing - typically IP addressing and routing.

18. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
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
Network

19. Which of the following are 3 common types of flow control?
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
Buffering - windowing - congestion avoidance

20. 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?
Decrease the window size.
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

21. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

22. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111

23. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Presentation layer makes sure that data is in a readable format for the Application layer.
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).
Transport

24. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Segments - packets - frames - bits
Network
Fiber-opticcable
Layer 4

25. Convert 192.168.10.15 to binary format.
183/B7
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.

26. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
RJ45 UTP crossover cable.
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.

27. This device sends and receives information about the Network layer.
Transport
Router
The Session layer sets up - maintains - and terminates sessions between applications.
48 bits (6 bytes)

28. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166
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).

29. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
Hub
The Data Link layer is responsible for the framing of data packets.

30. This device can measure the distance to a remote network.
11000000.10101000.00001010.00001111
Router
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.

31. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.
Router

32. This layer supports flow control and sequencing.
To create more collision domains and to add more bandwidth for users.
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge

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.
Bridge or switch
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.

34. 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?
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for the electrical and mechanical connections between devices.

35. What type of RJ45 UTP cable is used between switches?
Router
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.

36. Which two fields are contained within an IEEE Ethernet frame header?
Segments - packets - frames - bits
Source and destination MAC address and FCS field
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.
48 bits (6 bytes)

37. This device can never run full duplex.
Hub
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
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.

38. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Packet switching - Packet filtering - Internetwork communication - Path selection
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.
D8:1B:3D:76

39. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.
48 bits (6 bytes)
Data Link (LLC sublayer)

40. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
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 crossover cable.
Data - segment - packet - frame - bit

41. Name three types of connections that can use full duplex.
132.210.184.166
The Network layer provides logical addressing - typically IP addressing and routing.
Switch to switch - host to host - switch to host
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.

42. Which layer is represented by packets?
3 - 2 - 1 - none
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
The Network layer creates packets out of segments handed down from the Transport layer.

43. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
132.210.184.166
To create more collision domains and to add more bandwidth for users.
Source and destination MAC address and FCS field
CA:F5:83:EB

44. This layer uses service access points.
132.210.184.166
Data Link (LLC sublayer)
Decrease the window size.
To create more collision domains and to add more bandwidth for users.

45. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Packet switching - Packet filtering - Internetwork communication - Path selection
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

46. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
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
204.51.170.85

47. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch or bridge
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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 crossover cable.

48. This device uses hardware addresses to filter a network.
198.211.57.209
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).
Bridge or switch
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

49. Ethernet is defined at these layers.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link & Physical
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

50. What are two purposes for segmentation with a bridge?
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.