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 defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer segments user data.
D8:1B:3D:76
To provide a means for the receiver to govern the amount of data sent by the sender.

2. This device can never run full duplex.
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.
The Network layer provides routing through an internetwork and logical addressing.
Hub

3. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
204.51.170.85

4. When data is encapsulated - which is the correct order?
RJ45 UTP crossover cable.
Router
Switch to switch - host to host - switch to host
Data - segment - packet - frame - bit

5. Which layer is represented by segments?
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
The Transport layer segments user data.
The Network layer provides logical addressing - typically IP addressing and routing.

6. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
48 bits (6 bytes)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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
10101100.00010000.00010100.00110111

7. This device can measure the distance to a remote network.
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.
Hub
Transport
Router

8. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
198.211.57.209
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.
Layer 4

9. 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
D8:1B:3D:76
Data Link (LLC sublayer)
Data - segment - packet - frame - bit
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).

10. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
183/B7
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)
132.210.184.166

11. Convert 10.11.12.99 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
Router

12. Segmentation of a data stream happens at which layer of the OSI model?
Buffering - windowing - congestion avoidance
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.
Segments - packets - frames - bits

13. Why does the data communication industry use the layered OSI reference model? (Name two)
48 bits (6 bytes)
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.
Router

14. This device creates one big collision domain and one large broadcast domain.
Switch to switch - host to host - switch to host
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
Hub

15. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85
Switch to switch - host to host - switch to host

16. 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?
10101100.00010000.00010100.00110111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.

17. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7
CA:F5:83:EB
Router

18. What type of RJ45 UTP cable is used between switches?
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111
Transport

19. This layer supports flow control and sequencing.
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer segments user data.
Transport
Network

20. Which two fields are contained within an IEEE Ethernet frame header?
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

21. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Data Link layer is responsible for the framing of data packets.
84:D2:43:B3
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 sets up - maintains - and terminates sessions between applications.

22. Which layer is represented by packets?
183/B7
Router
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer sets up - maintains - and terminates sessions between applications.

23. This device breaks up collision domains and broadcast domains.
Source and destination MAC address and FCS field
204.51.170.85
Transport
Router

24. Ethernet is defined at these layers.
RJ45 UTP crossover cable.
Data Link & Physical
Router
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

25. Name three types of connections that can use full duplex.
Transport
Switch to switch - host to host - switch to host
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Packet switching - Packet filtering - Internetwork communication - Path selection

26. What is the bit length and expression form of a MAC address?
Segments - packets - frames - bits
Transport
48 bits (6 bytes)
Router

27. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
D8:1B:3D:76
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

28. Which layer provides logical addressing that routers will use for path determination?
D8:1B:3D:76
Hub
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.

29. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
183/B7
132.210.184.166

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

31. This device sends and receives information about the Network layer.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

32. Name four router functions.
Hub
Hub and repeater
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

33. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
48 bits (6 bytes)
132.210.184.166
The Data Link layer frames packets received from the Network layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

34. 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).
Source and destination MAC address and FCS field
Network
Hub

35. This device uses hardware addresses to filter a network.
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
Bridge or switch
Transport

36. 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.
Hub
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

37. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
183/B7

38. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
84:D2:43:B3
RJ45 UTP crossover cable.

39. 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 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.
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)

40. At which layer is routing implemented - enabling connections and path selection between two end systems?
00001010.00001011.00001100.01100011
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209
Layer 4

41. Convert 192.168.10.15 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.
The Data Link layer is responsible for the framing of data packets.
Network
11000000.10101000.00001010.00001111

42. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Buffering - windowing - congestion avoidance
Hub and repeater
Transport

43. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011

44. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Switch or bridge
Data Link
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection

45. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
The Data Link layer is responsible for the framing of data packets.

46. Logical addressing is used at this layer.
10101100.00010000.00010100.00110111
The Session layer creates sessions between different hosts' applications.
Transport
Network

47. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Decrease the window size.
Hub
Data Link & Physical
RJ45 UTP rolled cable.

48. This layer uses service access points.
The Session layer creates sessions between different hosts' applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.

49. Which of the following are 3 common types of flow control?
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Buffering - windowing - congestion avoidance
The Session layer creates sessions between different hosts' applications.

50. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link
Router
204.51.170.85
198.211.57.209