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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 provides the physical transmission of the data and handles error notification - network topology - and flow control?
198.211.57.209
Decrease the window size.
Data Link
Network

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

3. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Switch to switch - host to host - switch to host
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 segments user data.

4. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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
Switch or bridge
84:D2:43:B3

5. This device uses hardware addresses to filter a network.
Switch to switch - host to host - switch to host
Fiber-opticcable
Data Link & Physical
Bridge or switch

6. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Decrease the window size.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7

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

8. Which two fields are contained within an IEEE Ethernet frame header?
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection
Source and destination MAC address and FCS field
Router

9. What are two purposes for segmentation with a 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).
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
To create more collision domains and to add more bandwidth for users.

10. Convert 172.16.20.55 to binary format.
Bridge or switch
10101100.00010000.00010100.00110111
Hub
Buffering - windowing - congestion avoidance

11. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Data Link layer frames packets received from the Network layer.
Data Link
Network
Switch or bridge

12. This layer supports flow control and sequencing.
Fiber-opticcable
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Transport

13. Convert 192.168.10.15 to binary format.
Hub
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none

14. Which layer is responsible for creating - managing - and terminating sessions between applications?
Hub
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.

15. This device can never run full duplex.
Hub
3 - 2 - 1 - none
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.

16. Logical addressing is used at this layer.
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
Network
Data Link & Physical

17. Which of the following are 3 common types of flow control?
84:D2:43:B3
Layer 4
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance

18. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
Hub and repeater
CA:F5:83:EB
84:D2:43:B3

19. Convert 10.11.12.99 to binary format.
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011
The Data Link layer is responsible for the framing of data packets.
Transport

20. At which layer is routing implemented - enabling connections and path selection between two end systems?
3 - 2 - 1 - none
Layer 4
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.

21. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
00001010.00001011.00001100.01100011

22. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Transport
Hub
183/B7

23. Name four router functions.
Hub
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

24. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
183/B7
Network
3 - 2 - 1 - none

25. This layer uses service access points.
Transport
Data Link (LLC sublayer)
Hub
Switch to switch - host to host - switch to host

26. Which layer segments and reassembles data into a data stream?
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 routing through an internetwork and logical addressing.
Transport
Decrease the window size.

27. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111

28. 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
The Physical layer is responsible for the electrical and mechanical connections between devices.
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).
Data Link & Physical
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.

29. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.

30. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Network layer provides routing through an internetwork and logical addressing.
Transport
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111

31. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
198.211.57.209
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.

32. This device creates one big collision domain and one large broadcast domain.
Transport
Network
11000000.10101000.00001010.00001111
Hub

33. Ethernet is defined at these layers.
Network
Router
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

34. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
48 bits (6 bytes)
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

35. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111
Transport
Router

36. This device can measure the distance to a remote network.
204.51.170.85
Router
Hub
198.211.57.209

37. Which layer is represented by packets?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.

38. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits
Data Link & Physical
Router

39. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

40. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Source and destination MAC address and FCS field

41. 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?
Network
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.
Switch to switch - host to host - switch to host
Decrease the window size.

42. This device sends and receives information about the Network layer.
The Session layer creates sessions between different hosts' applications.
Decrease the window size.
11000000.10101000.00001010.00001111
Router

43. 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.
Switch or bridge
Transport
84:D2:43:B3

44. Which layer is represented by segments?
The Transport layer segments user data.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
132.210.184.166

45. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Network
RJ45 UTP crossover cable.
Hub and repeater
The Transport layer segments user data.

46. What is the purpose of flow control?
Switch or bridge
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.

47. What type of RJ45 UTP cable is used between switches?
Network
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router

48. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
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).

49. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Segments - packets - frames - bits
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209

50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Presentation layer makes sure that data is in a readable format for the Application layer.