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

2. This layer supports flow control and sequencing.
132.210.184.166
Source and destination MAC address and FCS field
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

3. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Decrease the window size.
204.51.170.85
Buffering - windowing - congestion avoidance
Layer 4

4. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Network
204.51.170.85
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.
Transport

5. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
To provide a means for the receiver to govern the amount of data sent by the sender.
48 bits (6 bytes)
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

6. What type of RJ45 UTP cable is used between switches?
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
RJ45 UTP crossover cable.
Hub

7. Which layer is represented by bits?
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Buffering - windowing - congestion avoidance
The Data Link layer frames packets received from the Network layer.

8. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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 rolled cable.
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

9. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.
Router
Network

10. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
To create more collision domains and to add more bandwidth for users.
Data Link

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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
198.211.57.209
Network

12. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Network
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.

13. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Router
3 - 2 - 1 - none
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.

14. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
Transport
Data Link & Physical

15. This device breaks up collision domains and broadcast domains.
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router

16. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
To provide a means for the receiver to govern the amount of data sent by the sender.
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance
Network

17. 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?
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
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
11000000.10101000.00001010.00001111

18. At which layer is routing implemented - enabling connections and path selection between two end systems?
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 Network layer provides routing through an internetwork and logical addressing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

19. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
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).
Switch or bridge
Decrease the window size.

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

21. Convert 172.16.20.55 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
10101100.00010000.00010100.00110111
3 - 2 - 1 - none
204.51.170.85

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
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
Fiber-opticcable

23. Convert 192.168.10.15 to binary format.
132.210.184.166
11000000.10101000.00001010.00001111
CA:F5:83:EB
Transport

24. Convert 10.11.12.99 to binary format.
Router
00001010.00001011.00001100.01100011
The Network layer provides routing through an internetwork and logical addressing.
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.

25. This layer uses service access points.
Data Link (LLC sublayer)
204.51.170.85
Switch to switch - host to host - switch to host
Router

26. Which layer is responsible for creating - managing - and terminating sessions between applications?
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 Network layer provides logical addressing - typically IP addressing and routing.
The Session layer sets up - maintains - and terminates sessions between applications.
10101100.00010000.00010100.00110111

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

28. Ethernet is defined at these layers.
Data Link
Data Link & Physical
RJ45 UTP rolled cable.
Segments - packets - frames - bits

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

30. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP crossover cable.
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

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

32. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
D8:1B:3D:76
Router

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
CA:F5:83:EB
Switch or bridge
204.51.170.85
Transport

34. Name four router functions.
198.211.57.209
Router
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection

35. This device creates one big collision domain and one large broadcast domain.
To create more collision domains and to add more bandwidth for users.
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.

36. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none
The Physical layer is responsible for the electrical and mechanical connections between devices.

37. Which layer is represented by frames?
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 frames packets received from the Network layer.
Decrease the window size.
204.51.170.85

38. 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.
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer creates packets out of segments handed down from the Transport layer.

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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).
84:D2:43:B3
183/B7
48 bits (6 bytes)

40. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none
Transport

41. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 Network layer provides routing through an internetwork and logical addressing.
Hub

42. Which layer is represented by segments?
Data Link
Segments - packets - frames - bits
Transport
The Transport layer segments user data.

43. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111

44. 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 Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link & Physical

45. Which layer segments and reassembles data into a data stream?
Switch or bridge
Transport
The Session layer creates sessions between different hosts' 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

46. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
48 bits (6 bytes)
RJ45 UTP rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

47. This device uses hardware addresses to filter a network.
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
132.210.184.166
Transport

48. What is the bit length and expression form of a MAC address?
The Session layer sets up - maintains - and terminates sessions between applications.
To create more collision domains and to add more bandwidth for users.
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.
48 bits (6 bytes)

49. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Buffering - windowing - congestion avoidance
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166

50. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none
Hub and repeater
Network