Test your basic knowledge |

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. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Switch or bridge
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Segments - packets - frames - bits
CA:F5:83:EB

2. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
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
Decrease the window size.

3. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer segments user data.
Router
Router
198.211.57.209

4. Which layer is represented by segments?
Bridge or switch
The Transport layer segments user data.
Switch or bridge
CA:F5:83:EB

5. Logical addressing is used at this layer.
Fiber-opticcable
Network
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76

6. What are two purposes for segmentation with a bridge?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.
204.51.170.85
To create more collision domains and to add more bandwidth for users.

7. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
198.211.57.209
To create more collision domains and to add more bandwidth for users.
Segments - packets - frames - bits

8. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Network
11000000.10101000.00001010.00001111
Data Link & Physical

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

10. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Source and destination MAC address and FCS field
3 - 2 - 1 - none
CA:F5:83:EB

11. At which layer is routing implemented - enabling connections and path selection between two end systems?
Hub
Network
The Network layer provides routing through an internetwork and logical addressing.
Data Link (LLC sublayer)

12. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data - segment - packet - frame - bit
Transport
CA:F5:83:EB
The Network layer creates packets out of segments handed down from the Transport layer.

13. 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.
198.211.57.209
D8:1B:3D:76
Segments - packets - frames - bits

14. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater
RJ45 UTP rolled cable.

15. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

16. This device breaks up collision domains and broadcast domains.
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).
132.210.184.166
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.
Router

17. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Data Link
Fiber-opticcable
D8:1B:3D:76

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

19. When data is encapsulated - which is the correct order?
The Session layer creates sessions between different hosts' applications.
Fiber-opticcable
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.

20. 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.
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.

21. This device uses hardware addresses to filter a network.
Network
D8:1B:3D:76
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.

22. 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
Switch or bridge
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 Session layer sets up - maintains - and terminates sessions between applications.

23. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Buffering - windowing - congestion avoidance
D8:1B:3D:76
10101100.00010000.00010100.00110111
Network

24. This device can never run full duplex.
Hub
The Session layer creates sessions between different hosts' applications.
Data - segment - packet - frame - bit
Fiber-opticcable

25. This device sends and receives information about the Network layer.
Network
3 - 2 - 1 - none
Hub
Router

26. Which layer is represented by bits?
Bridge or switch
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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).

27. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Bridge or switch
Router
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link

28. What type of RJ45 UTP cable is used between switches?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP crossover cable.
Hub and repeater

29. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
To create more collision domains and to add more bandwidth for users.
Hub and repeater
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

30. 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.
Router
CA:F5:83:EB
3 - 2 - 1 - none

31. 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
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.
Router
RJ45 UTP rolled cable.

32. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Data - segment - packet - frame - bit
The Network layer provides logical addressing - typically IP addressing and routing.
Hub

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Data Link & Physical
Decrease the window size.
Switch or bridge
204.51.170.85

34. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub and repeater
204.51.170.85
Router
Transport

35. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Bridge or switch
Hub
D8:1B:3D:76

36. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
D8:1B:3D:76
Layer 4
183/B7
Hub and repeater

37. Convert 10.11.12.99 to binary format.
Network
Data Link & Physical
48 bits (6 bytes)
00001010.00001011.00001100.01100011

38. What is the bit length and expression form of a MAC address?
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
48 bits (6 bytes)

39. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
To create more collision domains and to add more bandwidth for users.
The Network layer provides logical addressing - typically IP addressing and routing.
Switch or bridge
The Presentation layer makes sure that data is in a readable format for the Application layer.

40. 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?
Data Link & Physical
Decrease the window size.
The Session layer creates sessions between different hosts' applications.
Data Link (LLC sublayer)

41. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
00001010.00001011.00001100.01100011
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 Physical layer is responsible for the electrical and mechanical connections between devices.

42. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.
Segments - packets - frames - bits
204.51.170.85

43. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
Data Link & Physical
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

44. Name four router functions.
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.

45. This layer supports flow control and sequencing.
11000000.10101000.00001010.00001111
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
Data Link & Physical

46. This device creates one big collision domain and one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
CA:F5:83:EB
Switch or bridge
Hub

47. Which layer is represented by frames?
Hub and repeater
The Data Link layer frames packets received from the Network layer.
Network
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).

48. Convert 172.16.20.55 to binary format.
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.
10101100.00010000.00010100.00110111
CA:F5:83:EB
Network

49. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
198.211.57.209
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. Which layer segments and reassembles data into a data stream?
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111
Transport