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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 segments and reassembles data into a data stream?
The Network layer provides logical addressing - typically IP addressing and routing.
Switch to switch - host to host - switch to host
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

2. Convert 10.11.12.99 to binary 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.
The Network layer provides routing through an internetwork and logical addressing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011

3. Which layer is represented by frames?
3 - 2 - 1 - none
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field

4. This device creates one big collision domain and one large broadcast domain.
To provide a means for the receiver to govern the amount of data sent by the sender.
Switch or bridge
Hub
Data - segment - packet - frame - bit

5. Name four router functions.
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
Transport
00001010.00001011.00001100.01100011

6. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
10101100.00010000.00010100.00110111
Switch to switch - host to host - switch to host
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.

7. Convert 172.16.20.55 to binary format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111
84:D2:43:B3
Segments - packets - frames - bits

8. Which two fields are contained within an IEEE Ethernet frame header?
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Source and destination MAC address and FCS field
Transport

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Buffering - windowing - congestion avoidance
204.51.170.85
Data Link
Network

10. Segmentation of a data stream happens at which layer of the OSI model?
84:D2:43:B3
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

11. What is the bit length and expression form of a MAC address?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)

12. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
RJ45 UTP crossover cable.
Fiber-opticcable
198.211.57.209

13. Which layer is represented by segments?
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link
Data - segment - packet - frame - bit

14. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.
Decrease the window size.

15. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
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).
Source and destination MAC address and FCS field

16. 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?
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link & Physical
11000000.10101000.00001010.00001111
Decrease the window size.

17. Logical addressing is used at this layer.
Data Link (LLC sublayer)
The Network layer creates packets out of segments handed down from the Transport layer.
Fiber-opticcable
Network

18. At which layer is routing implemented - enabling connections and path selection between two end systems?
10101100.00010000.00010100.00110111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.

19. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer provides routing through an internetwork and logical addressing.
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.
Router

20. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
RJ45 UTP crossover cable.
The Transport layer segments user data.
183/B7
Router

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

22. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub
Switch to switch - host to host - switch to host
198.211.57.209
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.

23. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Decrease the window size.
Switch or bridge
Buffering - windowing - congestion avoidance

24. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Transport
RJ45 UTP rolled cable.
84:D2:43:B3
132.210.184.166

25. This layer creates a virtual circuit before transmitting between two end stations.
D8:1B:3D:76
Data Link & Physical
The Data Link layer is responsible for the framing of data packets.
Transport

26. This device breaks up collision domains and broadcast domains.
Router
Transport
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.

27. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Hub
RJ45 UTP crossover cable.
Data Link

28. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Session layer creates sessions between different hosts' applications.
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).
Fiber-opticcable

29. Convert 192.168.10.15 to binary format.
Network
11000000.10101000.00001010.00001111
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.

30. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.

31. What is the purpose of flow control?
Transport
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater

32. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Data Link & Physical
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 routing through an internetwork and logical addressing.

33. This layer supports flow control and sequencing.
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
198.211.57.209
Transport

34. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Router
Transport
204.51.170.85
RJ45 UTP rolled cable.

35. 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.
132.210.184.166
Router
Network

36. This device uses hardware addresses to filter a network.
00001010.00001011.00001100.01100011
Hub and repeater
Hub
Bridge or switch

37. Ethernet is defined at these layers.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge
Data Link & Physical

38. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209
Network
10101100.00010000.00010100.00110111

39. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
11000000.10101000.00001010.00001111
Network
Packet switching - Packet filtering - Internetwork communication - Path selection

40. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
CA:F5:83:EB
84:D2:43:B3

41. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
RJ45 UTP rolled cable.
84:D2:43:B3
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.

42. This layer uses service access points.
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.
Data Link (LLC sublayer)

43. This device can measure the distance to a remote network.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Network
Fiber-opticcable

44. This device sends and receives information about the Network layer.
Router
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.
The Session layer sets up - maintains - and terminates sessions between applications.

45. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

46. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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
Transport
Segments - packets - frames - bits

47. 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?
Router
Transport
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Segments - packets - frames - bits
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

49. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Segments - packets - frames - bits
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection

50. 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
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).
84:D2:43:B3
Source and destination MAC address and FCS field
Data Link & Physical