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 device can never run full duplex.
Hub and repeater
Hub
CA:F5:83:EB
Switch or bridge

2. What type of RJ45 UTP cable is used between switches?
Bridge or switch
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.
CA:F5:83:EB

3. This device breaks up collision domains and broadcast domains.
Data Link (LLC sublayer)
The Session layer creates sessions between different hosts' applications.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

4. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
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)
Hub and repeater

5. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
3 - 2 - 1 - none
Layer 4
48 bits (6 bytes)

6. Name three types of connections that can use full duplex.
Router
Switch to switch - host to host - switch to host
183/B7
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.

7. This device can measure the distance to a remote network.
Transport
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

8. Convert 10.11.12.99 to binary 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
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011
Hub

9. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Switch or bridge
The Network layer provides routing through an internetwork and logical addressing.
Network

10. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.
Transport
Hub

11. Which layer is represented by packets?
The Data Link layer frames packets received from the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

12. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
204.51.170.85
Hub
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
Data Link & Physical

13. When data is encapsulated - which is the correct order?
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
Data Link & Physical
Switch to switch - host to host - switch to host

14. Segmentation of a data stream happens at which layer of the OSI model?
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
Switch to switch - host to host - switch to host
Transport

15. Convert 192.168.10.15 to binary format.
Bridge or switch
To create more collision domains and to add more bandwidth for users.
Router
11000000.10101000.00001010.00001111

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

17. 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.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

18. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Hub
Transport
183/B7
Data Link (LLC sublayer)

19. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Hub
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Fiber-opticcable

20. Which layer segments and reassembles data into a data stream?
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
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).

21. This layer uses service access points.
Layer 4
Data Link (LLC sublayer)
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.
198.211.57.209

22. Which two fields are contained within an IEEE Ethernet frame header?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater
Source and destination MAC address and FCS field
Router

23. This layer creates a virtual circuit before transmitting between two end stations.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub and repeater
Transport

24. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
183/B7
Router
Segments - packets - frames - bits
Router

25. Logical addressing is used at this layer.
Hub
Network
CA:F5:83:EB
The Presentation layer makes sure that data is in a readable format for the Application layer.

26. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

27. 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
Hub and repeater
00001010.00001011.00001100.01100011
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).
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.

28. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.

29. 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?
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

30. Which layer provides logical addressing that routers will use for path determination?
The Transport layer segments user data.
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

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

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

33. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
132.210.184.166
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

34. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
11000000.10101000.00001010.00001111
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.
Network

35. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Layer 4
Network
D8:1B:3D:76
Transport

36. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
204.51.170.85
The Network layer provides routing through an internetwork and logical addressing.
Bridge or switch

37. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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
The Physical layer is responsible for the electrical and mechanical connections between devices.

38. What are two purposes for segmentation with a bridge?
00001010.00001011.00001100.01100011
3 - 2 - 1 - none
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
To create more collision domains and to add more bandwidth for users.

39. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
204.51.170.85

40. This device uses hardware addresses to filter a network.
Switch to switch - host to host - switch to host
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Switch or bridge

41. Why does the data communication industry use the layered OSI reference model? (Name two)
Hub and repeater
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.

42. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub and repeater
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 Transport layer segments user data.
84:D2:43:B3

43. What is the purpose of flow control?
198.211.57.209
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.
Hub

44. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Data Link layer is responsible for the framing of data packets.
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
Bridge or switch

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

46. Which layer is represented by segments?
The Transport layer segments user data.
48 bits (6 bytes)
Data Link & Physical
198.211.57.209

47. Convert 11001010.11110101.10000011.11101011 to hexadecimal 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
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
CA:F5:83:EB

48. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
84:D2:43:B3
Router
Transport

49. Name four router functions.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

50. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
204.51.170.85
The Data Link layer frames packets received from the Network layer.
132.210.184.166
CA:F5:83:EB