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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 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
Hub and repeater
Network
10101100.00010000.00010100.00110111

2. Ethernet is defined at these layers.
Data Link & Physical
To create more collision domains and to add more bandwidth for users.
Transport
CA:F5:83:EB

3. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.

4. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Data Link (LLC sublayer)
132.210.184.166
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.

5. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
183/B7
204.51.170.85
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits

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

7. 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?
198.211.57.209
Fiber-opticcable
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater

8. What is the bit length and expression form of a MAC address?
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)
Switch or bridge
Data Link (LLC sublayer)

9. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
183/B7
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.

10. Which layer is represented by bits?
Transport
Data Link (LLC sublayer)
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. When data is encapsulated - which is the correct order?
The Session layer sets up - maintains - and terminates sessions between applications.
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.
Data - segment - packet - frame - bit
132.210.184.166

12. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
CA:F5:83:EB
Transport
RJ45 UTP rolled cable.
To create more collision domains and to add more bandwidth for users.

13. This device breaks up collision domains and broadcast domains.
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
Router

14. This device sends and receives information about the Network layer.
Router
Transport
D8:1B:3D:76
Hub and repeater

15. 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?
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
Network

16. This layer uses service access points.
CA:F5:83:EB
Hub
Network
Data Link (LLC sublayer)

17. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Network
183/B7
The Data Link layer is responsible for the framing of data packets.

18. Convert 10.11.12.99 to binary format.
Layer 4
11000000.10101000.00001010.00001111
48 bits (6 bytes)
00001010.00001011.00001100.01100011

19. Which layer segments and reassembles data into a data stream?
Data Link & Physical
Transport
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.

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?
Hub and repeater
Transport
Decrease the window size.
Segments - packets - frames - bits

21. Logical addressing is used at this layer.
Data Link (LLC sublayer)
CA:F5:83:EB
Router
Network

22. Which of the following are 3 common types of flow control?
Transport
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.
Buffering - windowing - congestion avoidance

23. Which layer is represented by segments?
The Transport layer segments user data.
Router
Data - segment - packet - frame - bit
The Network layer provides logical addressing - typically IP addressing and routing.

24. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
132.210.184.166
Network
Switch or bridge
Router

25. Which two fields are contained within an IEEE Ethernet frame header?
00001010.00001011.00001100.01100011
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To create more collision domains and to add more bandwidth for users.
Source and destination MAC address and FCS field

26. What is the purpose of flow control?
132.210.184.166
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Segments - packets - frames - bits

27. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Router
Decrease the window size.
Buffering - windowing - congestion avoidance

28. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.

29. Why does the data communication industry use the layered OSI reference model? (Name two)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
CA:F5:83:EB
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. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
00001010.00001011.00001100.01100011
Network
198.211.57.209
Transport

31. Name four router functions.
00001010.00001011.00001100.01100011
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
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

32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Hub
Data Link & Physical
CA:F5:83:EB
Fiber-opticcable

33. 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
183/B7
Hub
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).
Fiber-opticcable

34. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 (LLC sublayer)
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

35. This layer creates a virtual circuit before transmitting between two end stations.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Transport
Network

36. This layer supports flow control and sequencing.
Layer 4
The Data Link layer is responsible for the framing of data packets.
Transport
204.51.170.85

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

38. This device can never run full duplex.
Hub
Data - segment - packet - frame - bit
Network
Fiber-opticcable

39. This device can measure the distance to a remote network.
Data Link (LLC sublayer)
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
Router

40. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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.
Fiber-opticcable
00001010.00001011.00001100.01100011
Transport

41. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.

42. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.
Data Link
198.211.57.209

43. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Decrease the window size.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.

44. Which layer is represented by frames?
The Network layer creates packets out of segments handed down from the Transport layer.
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).
00001010.00001011.00001100.01100011
The Data Link layer frames packets received from the Network layer.

45. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

46. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
84:D2:43:B3
Data Link
Layer 4

47. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data - segment - packet - frame - bit
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.
198.211.57.209

48. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Source and destination MAC address and FCS field
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76

49. Which layer provides logical addressing that routers will use for path determination?
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.
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.

50. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer is responsible for the framing of data packets.
Data Link (LLC sublayer)
204.51.170.85