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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. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
10101100.00010000.00010100.00110111
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

2. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
183/B7
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.

3. Which layer is represented by frames?
Fiber-opticcable
Transport
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.

4. What type of RJ45 UTP cable is used between switches?
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.
Router
11000000.10101000.00001010.00001111

5. When data is encapsulated - which is the correct order?
Switch to switch - host to host - switch to host
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).
Data - segment - packet - frame - bit
The Physical layer is responsible for the electrical and mechanical connections between devices.

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at 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.
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
3 - 2 - 1 - none

7. Name four router functions.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
Router

8. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
11000000.10101000.00001010.00001111
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.

9. Why does the data communication industry use the layered OSI reference model? (Name two)
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
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 Presentation layer makes sure that data is in a readable format for the Application layer.

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

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11. This device can never run full duplex.
Data Link & Physical
Hub
The Transport layer segments user data.
Transport

12. What is the bit length and expression form of a MAC address?
CA:F5:83:EB
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
48 bits (6 bytes)

13. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
To create more collision domains and to add more bandwidth for users.
Switch or bridge
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

14. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Switch to switch - host to host - switch to host
204.51.170.85
The Data Link layer is responsible for the framing of data packets.
To create more collision domains and to add more bandwidth for users.

15. This device creates one big collision domain and one large broadcast domain.
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

16. Which layer segments and reassembles data into a data stream?
48 bits (6 bytes)
Router
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

17. This device uses hardware addresses to filter a network.
00001010.00001011.00001100.01100011
3 - 2 - 1 - none
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.

18. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Buffering - windowing - congestion avoidance
Transport
The Transport layer segments user data.

19. Convert 172.16.20.55 to binary format.
The Network layer provides routing through an internetwork and logical addressing.
10101100.00010000.00010100.00110111
00001010.00001011.00001100.01100011
48 bits (6 bytes)

20. Ethernet is defined at these layers.
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits
Switch to switch - host to host - switch to host

21. What are two purposes for segmentation with a bridge?
Decrease the window size.
Bridge or switch
Hub
To create more collision domains and to add more bandwidth for users.

22. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Transport
Router
Transport

23. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Transport
Hub
Network
Transport

24. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
D8:1B:3D:76
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

25. Logical addressing is used at this layer.
Data - segment - packet - frame - bit
Network
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.
Hub

26. At which layer is routing implemented - enabling connections and path selection between two end systems?
Switch to switch - host to host - switch to host
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer provides routing through an internetwork and logical addressing.

27. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
Layer 4
Hub

28. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
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 and repeater
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.

29. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Switch or bridge
204.51.170.85
Router

30. Name three types of connections that can use full duplex.
CA:F5:83:EB
Transport
The Transport layer segments user data.
Switch to switch - host to host - switch to host

31. 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?
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer creates packets out of segments handed down from the Transport layer.

32. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
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

33. This device sends and receives information about the Network layer.
Data - segment - packet - frame - bit
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

34. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.
00001010.00001011.00001100.01100011

35. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

36. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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
Router
Data Link
Layer 4

37. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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).
D8:1B:3D:76
Data Link
Data - segment - packet - frame - bit

38. 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.
CA:F5:83:EB
Transport
11000000.10101000.00001010.00001111

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
RJ45 UTP crossover cable.
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.
204.51.170.85

40. Which layer is represented by packets?
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
The Network layer creates packets out of segments handed down from the Transport layer.

41. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)
Router
183/B7

42. 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
Segments - packets - frames - bits
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).
Decrease the window size.

43. Segmentation of a data stream happens at which layer of the OSI model?
Fiber-opticcable
Transport
11000000.10101000.00001010.00001111
Network

44. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Hub and repeater
CA:F5:83:EB
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

45. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Transport
132.210.184.166
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

46. Which layer is represented by segments?
The Network layer provides logical addressing - typically IP addressing and routing.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.

47. This layer uses service access points.
The Session layer creates sessions between different hosts' applications.
Data Link (LLC sublayer)
Network
Hub and repeater

48. Convert 192.168.10.15 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
11000000.10101000.00001010.00001111
The Session layer creates sessions between different hosts' applications.
The Network layer provides routing through an internetwork and logical addressing.

49. This layer supports flow control and sequencing.
Transport
00001010.00001011.00001100.01100011
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.

50. This device breaks up collision domains and broadcast domains.
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.