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 segments and reassembles data into a data stream?
3 - 2 - 1 - none
Decrease the window size.
Router
Transport

2. 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?
00001010.00001011.00001100.01100011
Decrease the window size.
48 bits (6 bytes)
Bridge or switch

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

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4. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
Bridge or switch
CA:F5:83:EB

5. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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
132.210.184.166
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85

6. Why does the data communication industry use the layered OSI reference model? (Name two)
CA:F5:83:EB
The Data Link layer is responsible for the framing of data packets.
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.

7. This layer supports flow control and sequencing.
Fiber-opticcable
Switch to switch - host to host - switch to host
Network
Transport

8. 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?
Fiber-opticcable
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

9. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
Transport
D8:1B:3D:76
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

10. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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 provides logical addressing - typically IP addressing and routing.

11. Which layer is represented by segments?
Network
The Transport layer segments user data.
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection

12. This device breaks up collision domains and broadcast domains.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
Router
Fiber-opticcable

13. This device can measure the distance to a remote network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router

14. 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 user virtual circuits to create a reliable connection between two hosts.
Network
Decrease the window size.
RJ45 UTP rolled cable.

15. 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 takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
Network
Transport

16. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer frames packets received from the Network layer.

17. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit

18. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data - segment - packet - frame - bit
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.
The Session layer sets up - maintains - and terminates sessions between applications.

19. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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 Session layer creates sessions between different hosts' applications.
198.211.57.209
Fiber-opticcable

20. Name three types of connections that can use full duplex.
Router
Switch or bridge
48 bits (6 bytes)
Switch to switch - host to host - switch to host

21. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
132.210.184.166

22. 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?
Layer 4
D8:1B:3D:76
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

23. What is the bit length and expression form of a MAC address?
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge
48 bits (6 bytes)

24. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)
Transport

25. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
The Data Link layer is responsible for the framing of data packets.
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.
CA:F5:83:EB

26. Which layer is represented by bits?
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.
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

27. This layer uses service access points.
Buffering - windowing - congestion avoidance
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)
3 - 2 - 1 - none

28. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

29. What type of RJ45 UTP cable is used between switches?
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
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

30. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Hub
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer is responsible for the framing of data packets.

31. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
84:D2:43:B3
10101100.00010000.00010100.00110111

32. This layer creates a virtual circuit before transmitting between two end stations.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

33. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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
84:D2:43:B3
Decrease the window size.
Data Link

34. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7
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).

35. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Buffering - windowing - congestion avoidance
Switch or bridge
The Session layer creates sessions between different hosts' applications.

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

37. Convert 192.168.10.15 to binary format.
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.
CA:F5:83:EB
11000000.10101000.00001010.00001111

38. This device uses hardware addresses to filter a network.
48 bits (6 bytes)
204.51.170.85
Bridge or switch
Transport

39. What are two purposes for segmentation with a bridge?
Hub and repeater
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
198.211.57.209

40. Logical addressing is used at this layer.
Buffering - windowing - congestion avoidance
Network
Router
The Network layer creates packets out of segments handed down from the Transport layer.

41. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Data Link layer frames packets received from the Network layer.
Layer 4
Switch or bridge
Hub and repeater

42. This device creates one big collision domain and one large broadcast domain.
Data Link & Physical
Hub
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.

43. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7

44. Segmentation of a data stream happens at which layer of the OSI model?
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
RJ45 UTP rolled cable.
Data Link (LLC sublayer)

45. This device sends and receives information about the Network layer.
Router
RJ45 UTP rolled cable.
Fiber-opticcable
48 bits (6 bytes)

46. This device can never run full duplex.
Hub
Hub and repeater
The Transport layer segments user data.
RJ45 UTP rolled cable.

47. Ethernet is defined at these layers.
CA:F5:83:EB
Data - segment - packet - frame - bit
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.

48. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Transport
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

49. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
Network
Transport
198.211.57.209

50. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011
Hub and repeater
Transport