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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 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?
CA:F5:83:EB
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4

2. Ethernet is defined at these layers.
RJ45 UTP rolled cable.
Network
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.

3. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Segments - packets - frames - bits
Switch to switch - host to host - switch to host
183/B7
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

4. Which layer is represented by segments?
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.
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).

5. 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 Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Presentation layer makes sure that data is in a readable format for the Application layer.

6. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
Data Link
84:D2:43:B3

7. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Decrease the window size.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
The Data Link layer frames packets received from the Network layer.

8. This layer creates a virtual circuit before transmitting between two end stations.
Decrease the window size.
Transport
Segments - packets - frames - bits
The Transport layer user virtual circuits to create a reliable connection between two hosts.

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
204.51.170.85
Decrease the window size.
Switch or bridge
Data Link

10. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
Hub
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB

11. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Switch or bridge
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.

12. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
D8:1B:3D:76
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field

13. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Network layer creates packets out of segments handed down from the Transport layer.
Bridge or switch
84:D2:43:B3

14. What are two purposes for segmentation with a bridge?
183/B7
To create more collision domains and to add more bandwidth for users.
00001010.00001011.00001100.01100011
198.211.57.209

15. 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.
Hub
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.

16. Name four router functions.
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection

17. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Buffering - windowing - congestion avoidance
Segments - packets - frames - bits
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

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

19. 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.
The Data Link layer frames packets received from the Network layer.
Network
204.51.170.85

20. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Bridge or switch
Segments - packets - frames - bits
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

21. Name three types of connections that can use full duplex.
Layer 4
The Network layer provides logical addressing - typically IP addressing and routing.
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.
Switch to switch - host to host - switch to host

22. Logical addressing is used at this layer.
198.211.57.209
Transport
Data Link & Physical
Network

23. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Transport
Decrease the window size.
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.

24. Which two fields are contained within an IEEE Ethernet frame header?
Network
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

25. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
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.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

26. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
183/B7
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.

27. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

28. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209
Transport

29. Which of the following are 3 common types of flow control?
The Session layer sets up - maintains - and terminates sessions between applications.
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance
Transport

30. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111
Decrease the window size.
204.51.170.85

31. Convert 192.168.10.15 to binary format.
Segments - packets - frames - bits
Transport
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111

32. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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 Network layer provides routing through an internetwork and logical addressing.

33. Which layer segments and reassembles data into a data stream?
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
Layer 4
Switch or bridge

34. This device creates many smaller collision domains - but the network is still one large broadcast domain.
To provide a means for the receiver to govern the amount of data sent by the sender.
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
Switch or bridge

35. Which layer provides logical addressing that routers will use for path determination?
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 Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
198.211.57.209

36. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Buffering - windowing - congestion avoidance
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits

37. What is the purpose of flow control?
The Session layer creates sessions between different hosts' applications.
Layer 4
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.

38. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.
Transport

39. 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
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 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.

40. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Session layer creates sessions between different hosts' applications.
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.
Network

41. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.

42. This device can never run full duplex.
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
183/B7
Router
Hub

43. This device can measure the distance to a remote network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
204.51.170.85
D8:1B:3D:76

44. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
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
Buffering - windowing - congestion avoidance

45. This device breaks up collision domains and broadcast domains.
Hub and repeater
Router
Segments - packets - frames - bits
11000000.10101000.00001010.00001111

46. This device uses hardware addresses to filter a network.
Layer 4
Router
84:D2:43:B3
Bridge or switch

47. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Network
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.
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).

48. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Transport
Source and destination MAC address and FCS field
Network
132.210.184.166

49. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
198.211.57.209
The Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.

50. This layer uses service access points.
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)
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.