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. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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.
Fiber-opticcable
Router

2. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
00001010.00001011.00001100.01100011
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.

3. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
11000000.10101000.00001010.00001111
Segments - packets - frames - bits
Switch or bridge

4. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Hub and repeater
Transport
Segments - packets - frames - bits

5. 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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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
Transport

6. Convert 192.168.10.15 to binary format.
Transport
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.

7. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
183/B7
RJ45 UTP rolled cable.
Source and destination MAC address and FCS field

8. What is the bit length and expression form of a MAC address?
Data Link (LLC sublayer)
48 bits (6 bytes)
Router
The Session layer creates sessions between different hosts' applications.

9. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Hub and repeater
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

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

11. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
To provide a means for the receiver to govern the amount of data sent by the sender.

12. This device can never run full duplex.
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
Data Link & Physical

13. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
10101100.00010000.00010100.00110111
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 Data Link layer is responsible for the framing of data packets.
Transport

14. Which layer is represented by segments?
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.

15. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

16. Why does the data communication industry use the layered OSI reference model? (Name two)
Switch or bridge
48 bits (6 bytes)
Layer 4
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.

17. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field

18. Ethernet is defined at these layers.
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111
Router
Data Link & Physical

19. This layer creates a virtual circuit before transmitting between two end stations.
Transport
RJ45 UTP rolled cable.
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76

20. Which layer provides logical addressing that routers will use for path determination?
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.

21. What are two purposes for segmentation with a bridge?
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.
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.
Data Link & Physical

22. When data is encapsulated - which is the correct order?
Fiber-opticcable
Network
The Network layer provides logical addressing - typically IP addressing and routing.
Data - segment - packet - frame - bit

23. This layer supports flow control and sequencing.
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111

24. Segmentation of a data stream happens at which layer of the OSI model?
Data Link
Decrease the window size.
132.210.184.166
Transport

25. Convert 172.16.20.55 to binary format.
D8:1B:3D:76
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
Bridge or switch
10101100.00010000.00010100.00110111

26. This device uses hardware addresses to filter a network.
D8:1B:3D:76
Transport
Transport
Bridge or switch

27. Which of the following are 3 common types of flow control?
The Transport layer segments user data.
Layer 4
Buffering - windowing - congestion avoidance
Hub

28. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router

29. This device creates many smaller collision domains - but the network is still one large broadcast domain.
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.
Switch or bridge
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).
RJ45 UTP rolled cable.

30. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Network
198.211.57.209

31. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.
183/B7
The Network layer provides logical addressing - typically IP addressing and routing.

32. Convert 10.11.12.99 to binary format.
Router
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
84:D2:43:B3

33. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
RJ45 UTP rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
198.211.57.209

34. 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.
Buffering - windowing - congestion avoidance
Router
The Transport layer segments user data.

35. What type of RJ45 UTP cable is used between switches?
10101100.00010000.00010100.00110111
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.

36. Logical addressing is used at this layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Hub
Transport

37. This device sends and receives information about the Network layer.
Router
Network
132.210.184.166
The Data Link layer frames packets received from the Network layer.

38. This device creates one big collision domain and one large broadcast domain.
Hub and repeater
Transport
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

39. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport
84:D2:43:B3

40. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Transport
198.211.57.209
D8:1B:3D:76
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

41. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.

42. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
132.210.184.166
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.

43. 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?
Data Link (LLC sublayer)
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Decrease the window size.

44. This device can measure the distance to a remote network.
Router
Source and destination MAC address and FCS field
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.

45. Which layer segments and reassembles data into a data stream?
Transport
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host

46. Which layer is represented by packets?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011
The Network layer creates packets out of segments handed down from the Transport layer.

47. This device breaks up collision domains and broadcast domains.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
D8:1B:3D:76
Router
Transport

48. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Segments - packets - frames - bits
Decrease the window size.
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 crossover cable.

49. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
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.
3 - 2 - 1 - none

50. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport