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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 combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
D8:1B:3D:76
Router
The Data Link layer is responsible for the framing of data packets.
Switch or bridge

2. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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
RJ45 UTP crossover cable.
132.210.184.166

3. Convert 172.16.20.55 to binary format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
10101100.00010000.00010100.00110111
Layer 4
183/B7

4. What is the purpose of flow control?
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
To provide a means for the receiver to govern the amount of data sent by the sender.
To create more collision domains and to add more bandwidth for users.
Packet switching - Packet filtering - Internetwork communication - Path selection

5. At which layer is routing implemented - enabling connections and path selection between two end systems?
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
Hub
The Network layer provides routing through an internetwork and logical addressing.

6. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

7. Which layer segments and reassembles data into a data stream?
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
Network

9. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Fiber-opticcable
11000000.10101000.00001010.00001111
The Session layer sets up - maintains - and terminates sessions between applications.
Switch or bridge

10. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
00001010.00001011.00001100.01100011
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.
Transport

11. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides routing through an internetwork and logical addressing.

12. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none
Buffering - windowing - congestion avoidance
The Data Link layer is responsible for the framing of data packets.

13. This device sends and receives information about the Network layer.
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111
Router
D8:1B:3D:76

14. This layer uses service access points.
Data Link (LLC sublayer)
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

15. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
To create more collision domains and to add more bandwidth for users.
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.

16. Which layer provides logical addressing that routers will use for path determination?
D8:1B:3D:76
The Session layer creates sessions between different hosts' applications.
The Network layer provides logical addressing - typically IP addressing and routing.
Layer 4

17. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer frames packets received from the Network layer.

18. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer creates packets out of segments handed down from the Transport layer.
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011

19. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Data Link
D8:1B:3D:76
204.51.170.85
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.

20. Ethernet is defined at these layers.
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Network
Data Link & Physical

21. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
84:D2:43:B3
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

22. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB
84:D2:43:B3

23. This layer creates a virtual circuit before transmitting between two end stations.
Switch or bridge
Transport
CA:F5:83:EB
Data Link

24. Name four router functions.
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection
To provide a means for the receiver to govern the amount of data sent by the sender.

25. This device breaks up collision domains and broadcast domains.
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable
Router

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

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27. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

28. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
CA:F5:83:EB
Data Link
132.210.184.166

29. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

30. What are two purposes for segmentation with a bridge?
Transport
Fiber-opticcable
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.

31. Which layer is represented by 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
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.

32. This layer supports flow control and sequencing.
48 bits (6 bytes)
Transport
Router
132.210.184.166

33. What type of RJ45 UTP cable is used between switches?
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP crossover cable.
Hub

34. Logical addressing is used at this layer.
00001010.00001011.00001100.01100011
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit

35. Which layer is represented by packets?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.
Transport

36. Which of the following are 3 common types of flow control?
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.

37. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
Bridge or switch
198.211.57.209

38. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Decrease the window size.
Transport
Segments - packets - frames - bits
The Physical layer is responsible for the electrical and mechanical connections between devices.

39. This device can never run full duplex.
Hub
10101100.00010000.00010100.00110111
Network
132.210.184.166

40. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To create more collision domains and to add more bandwidth for users.

41. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
Layer 4

42. Why does the data communication industry use the layered OSI reference model? (Name two)
RJ45 UTP rolled 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.
204.51.170.85
Transport

43. This device can measure the distance to a remote network.
Buffering - windowing - congestion avoidance
Router
00001010.00001011.00001100.01100011
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.

44. 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?
00001010.00001011.00001100.01100011
CA:F5:83:EB
Decrease the window size.
Transport

45. Which layer is represented by segments?
Data Link & Physical
10101100.00010000.00010100.00110111
3 - 2 - 1 - none
The Transport layer segments user data.

46. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Session layer creates sessions between different hosts' applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.

47. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

48. This device creates one big collision domain and one large broadcast domain.
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
CA:F5:83:EB
Hub

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

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
Router
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.
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).