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. 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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
84:D2:43:B3
Transport

2. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Transport
3 - 2 - 1 - none
Router
RJ45 UTP crossover cable.

3. Ethernet is defined at these layers.
Switch or bridge
Data Link & Physical
Decrease the window size.
Segments - packets - frames - bits

4. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Transport
204.51.170.85
D8:1B:3D:76
Decrease the window size.

5. This layer supports flow control and sequencing.
Fiber-opticcable
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).
Network

6. 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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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).
Network

7. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Layer 4
Hub and repeater
Hub

8. What are two purposes for segmentation with a bridge?
132.210.184.166
Buffering - windowing - congestion avoidance
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.

9. 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?
Decrease the window size.
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
10101100.00010000.00010100.00110111

10. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Transport
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

11. This device can never run full duplex.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub

12. Segmentation of a data stream happens at which layer of the OSI model?
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.
3 - 2 - 1 - none
Transport
Data - segment - packet - frame - bit

13. 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.
Segments - packets - frames - bits
Data Link
Router

14. This device can measure the distance to a remote network.
Router
RJ45 UTP crossover cable.
Transport
10101100.00010000.00010100.00110111

15. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

16. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport 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
Router

17. Name three types of connections that can use full duplex.
10101100.00010000.00010100.00110111
Network
Switch or bridge
Switch to switch - host to host - switch to host

18. This layer uses service access points.
Data Link (LLC sublayer)
Data - segment - packet - frame - bit
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

19. This device breaks up collision domains and broadcast domains.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
Router
84:D2:43:B3

20. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.
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 transporting 1s and 0s in a digital signal.

21. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
The Session layer sets up - maintains - and terminates sessions between applications.

22. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
3 - 2 - 1 - none
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater

23. This device uses hardware addresses to filter a network.
The Session layer creates sessions between different hosts' applications.
198.211.57.209
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.

24. Convert 10.11.12.99 to binary format.
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111
84:D2:43:B3

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
198.211.57.209
RJ45 UTP rolled cable.

26. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.

27. When data is encapsulated - which is the correct order?
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.
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.

28. Which layer is represented by packets?
183/B7
The Network layer creates packets out of segments handed down from the Transport layer.
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.

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
11000000.10101000.00001010.00001111
Layer 4
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).

30. 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.
Transport
00001010.00001011.00001100.01100011

31. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
10101100.00010000.00010100.00110111
48 bits (6 bytes)
CA:F5:83:EB

32. Which two fields are contained within an IEEE Ethernet frame header?
Segments - packets - frames - bits
3 - 2 - 1 - none
Layer 4
Source and destination MAC address and FCS field

33. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
RJ45 UTP crossover cable.
To provide a means for the receiver to govern the amount of data sent by the sender.
Layer 4
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

34. This device creates many smaller collision domains - but the network is still one large broadcast domain.
RJ45 UTP crossover cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge
Data Link (LLC sublayer)

35. Which layer provides logical addressing that routers will use for path determination?
204.51.170.85
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.

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

37. This device sends and receives information about the Network layer.
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209
CA:F5:83:EB
Router

38. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
3 - 2 - 1 - none
Network
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides routing through an internetwork and logical addressing.

39. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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).
Fiber-opticcable
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

40. What is the bit length and expression form of a MAC address?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)

41. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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.
183/B7
132.210.184.166
3 - 2 - 1 - none

42. At which layer is routing implemented - enabling connections and path selection between two end systems?
Router
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
48 bits (6 bytes)

43. Which layer is represented by segments?
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
Transport

44. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
198.211.57.209
Transport
Switch or bridge

45. What type of RJ45 UTP cable is used between switches?
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP crossover cable.
Transport
3 - 2 - 1 - none

46. Which layer segments and reassembles data into a data stream?
Transport
11000000.10101000.00001010.00001111
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.

47. 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 Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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 sets up - maintains - and terminates sessions between applications.

48. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Transport layer segments user data.
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.

49. Convert 172.16.20.55 to binary format.
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111

50. This device creates one big collision domain and one large broadcast domain.
00001010.00001011.00001100.01100011
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
132.210.184.166