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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. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data Link & Physical
D8:1B:3D:76
Fiber-opticcable
RJ45 UTP rolled cable.

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

3. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
Data Link
Network
RJ45 UTP rolled cable.

4. 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
00001010.00001011.00001100.01100011
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4

5. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011
Router
To create more collision domains and to add more bandwidth for users.

6. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
The Network layer provides logical addressing - typically IP addressing and routing.
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.

7. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
Transport
48 bits (6 bytes)
204.51.170.85

8. This layer uses service access points.
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
Data Link

9. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
84:D2:43:B3
The Transport layer segments user data.
11000000.10101000.00001010.00001111

10. This device uses hardware addresses to filter a network.
183/B7
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
Bridge or switch

11. Which layer is responsible for creating - managing - and terminating sessions between applications?
Packet switching - Packet filtering - Internetwork communication - Path selection
48 bits (6 bytes)
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

12. 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.
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

13. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
To create more collision domains and to add more bandwidth for users.
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 the electrical and mechanical connections between devices.

14. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
CA:F5:83:EB
The Presentation layer makes sure that data is in a readable format for the Application layer.

15. Which two fields are contained within an IEEE Ethernet frame header?
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP rolled cable.
Source and destination MAC address and FCS field

16. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
204.51.170.85
Router
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

17. Name three types of connections that can use full duplex.
Decrease the window size.
00001010.00001011.00001100.01100011
D8:1B:3D:76
Switch to switch - host to host - switch to host

18. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
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.

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

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20. Logical addressing is used at this layer.
Network
Fiber-opticcable
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.

21. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Transport layer segments user data.
84:D2:43:B3
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
132.210.184.166

22. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Transport layer segments user data.
Transport
RJ45 UTP rolled cable.
D8:1B:3D:76

23. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Segments - packets - frames - bits
10101100.00010000.00010100.00110111
Switch to switch - host to host - switch to host

24. This device can never run full duplex.
Hub
Segments - packets - frames - bits
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

25. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
132.210.184.166
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
198.211.57.209

26. This device breaks up collision domains and broadcast domains.
Data Link & Physical
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
132.210.184.166
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

28. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Layer 4
CA:F5:83:EB
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

29. This device can measure the distance to a remote network.
Router
Network
Switch or bridge
D8:1B:3D:76

30. Ethernet is defined at these layers.
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical
Data Link (LLC sublayer)

31. Which layer segments and reassembles data into a data stream?
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
RJ45 UTP crossover cable.

32. This device sends and receives information about the Network layer.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Switch or bridge

33. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link & Physical
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

34. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none
Hub
Decrease the window size.

35. Which layer is represented by packets?
Hub
Router
The Network layer creates packets out of segments handed down from the Transport layer.
D8:1B:3D:76

36. When data is encapsulated - which is the correct order?
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit
The Transport layer user virtual circuits to create a reliable connection between two hosts.
198.211.57.209

37. This layer supports flow control and sequencing.
183/B7
Router
Layer 4
Transport

38. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable
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
00001010.00001011.00001100.01100011

39. This device creates one big collision domain and one large broadcast domain.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
48 bits (6 bytes)

40. Convert 172.16.20.55 to binary format.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
Transport
Source and destination MAC address and FCS field

41. What type of RJ45 UTP cable is used between switches?
Data Link
Data Link & Physical
Segments - packets - frames - bits
RJ45 UTP crossover cable.

42. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Session layer creates sessions between different hosts' applications.
D8:1B:3D:76
Hub
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

43. Convert 192.168.10.15 to binary format.
The Network layer provides routing through an internetwork and logical addressing.
Data - segment - packet - frame - bit
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

44. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub
Network
Hub and repeater
Transport

45. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Decrease the window size.
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 Data Link layer is responsible for the framing of data packets.
RJ45 UTP rolled cable.

46. Which layer is represented by bits?
Router
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch or bridge

47. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
D8:1B:3D:76
Router
The Network layer provides logical addressing - typically IP addressing and routing.

48. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
CA:F5:83:EB
Hub and repeater
84:D2:43:B3

49. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Layer 4
132.210.184.166
Data Link & Physical
183/B7

50. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
D8:1B:3D:76
Router
To create more collision domains and to add more bandwidth for users.