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. Which layer is responsible for creating - managing - and terminating sessions between applications?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
132.210.184.166
Layer 4

2. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer is responsible for the framing of data packets.
204.51.170.85
11000000.10101000.00001010.00001111

3. Segmentation of a data stream happens at which layer of the OSI model?
204.51.170.85
48 bits (6 bytes)
Transport
Hub

4. Ethernet is defined at these layers.
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.
Data Link & Physical
Switch to switch - host to host - switch to host

5. Logical addressing is used at this layer.
Router
Switch to switch - host to host - switch to host
Network
To create more collision domains and to add more bandwidth for users.

6. 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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7
CA:F5:83:EB

7. 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
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
The Data Link layer is responsible for the framing of data packets.

8. When data is encapsulated - which is the correct order?
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host
Data - segment - packet - frame - bit
Hub and repeater

9. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Segments - packets - frames - bits
The Session layer creates sessions between different hosts' applications.
Router

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

11. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
84:D2:43:B3
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field

12. This device creates one big collision domain and one large broadcast domain.
Data Link (LLC sublayer)
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
204.51.170.85

13. Why does the data communication industry use the layered OSI reference model? (Name two)
D8:1B:3D:76
132.210.184.166
Router
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.

14. Which layer is represented by frames?
Hub
The Data Link layer frames packets received from the Network 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
The Transport layer segments user data.

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

16. Which layer is represented by bits?
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.
Data - segment - packet - frame - bit
Network

17. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
132.210.184.166
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.
RJ45 UTP crossover cable.

18. This layer supports flow control and sequencing.
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
Buffering - windowing - congestion avoidance
84:D2:43:B3

19. Which layer segments and reassembles data into a data stream?
Network
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.

20. This device uses hardware addresses to filter a network.
00001010.00001011.00001100.01100011
Data Link (LLC sublayer)
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.
Bridge or switch

21. This layer creates a virtual circuit before transmitting between two end stations.
The Transport layer segments user data.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111

22. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Session layer creates sessions between different hosts' applications.
The Network layer provides logical addressing - typically IP addressing and routing.
Switch or bridge

23. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76
00001010.00001011.00001100.01100011
204.51.170.85

24. This device can measure the distance to a remote network.
Router
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)

25. Which layer is represented by segments?
The Transport layer segments user data.
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.
84:D2:43:B3
10101100.00010000.00010100.00110111

26. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
3 - 2 - 1 - none
Hub
183/B7

27. This device can never run full duplex.
Hub
48 bits (6 bytes)
Hub and repeater
Data Link (LLC sublayer)

28. At which layer is routing implemented - enabling connections and path selection between two end systems?
Data Link
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 Data Link layer is responsible for the framing of data packets.
The Network layer provides routing through an internetwork and logical addressing.

29. 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
Data Link & Physical
11000000.10101000.00001010.00001111
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).
198.211.57.209

30. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4
84:D2:43:B3
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.

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

32. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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.
00001010.00001011.00001100.01100011
D8:1B:3D:76

33. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.

34. 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?
132.210.184.166
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111

35. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Decrease the window size.
D8:1B:3D:76
Switch or bridge

36. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Router
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.

37. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Transport layer segments user data.
Router
00001010.00001011.00001100.01100011

38. Convert 10.11.12.99 to binary format.
Hub
Transport
00001010.00001011.00001100.01100011
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

39. Name three types of connections that can use full duplex.
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).
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
Switch to switch - host to host - switch to host
CA:F5:83:EB

40. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.
132.210.184.166
Router

41. 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?
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 Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
Decrease the window size.

42. 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?
48 bits (6 bytes)
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.

43. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
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 logical addressing - typically IP addressing and routing.
CA:F5:83:EB

44. What is the purpose of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network

45. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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).
183/B7
Network
D8:1B:3D:76

46. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link & Physical
3 - 2 - 1 - none
Network
Hub and repeater

47. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Network
Decrease the window size.
The Transport layer segments user data.
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. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none

49. This device creates many smaller collision domains - but the network is still one large broadcast domain.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch or bridge
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. Convert 192.168.10.15 to binary format.
Switch to switch - host to host - switch to host
48 bits (6 bytes)
Network
11000000.10101000.00001010.00001111