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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. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Network
The Session layer creates sessions between different hosts' applications.
D8:1B:3D:76
3 - 2 - 1 - none

2. 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.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.

3. This device can measure the distance to a remote network.
The Presentation layer makes sure that data is in a readable format for the Application layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

4. Which layer is represented by frames?
Network
The Data Link layer frames packets received from the Network layer.
204.51.170.85
10101100.00010000.00010100.00110111

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

6. Which layer is represented by segments?
The Transport layer segments user data.
The Session layer sets up - maintains - and terminates sessions between applications.
Segments - packets - frames - bits
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

7. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.

8. Ethernet is defined at these layers.
The Transport layer segments user data.
Data Link & Physical
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.

9. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111
84:D2:43:B3

10. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.
Data - segment - packet - frame - bit
132.210.184.166

11. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub
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.
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).

12. At which layer is routing implemented - enabling connections and path selection between two end systems?
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).
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
10101100.00010000.00010100.00110111

13. When data is encapsulated - which is the correct order?
198.211.57.209
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit
Router

14. What is the purpose of flow control?
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

15. Name four router functions.
183/B7
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.

16. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.

17. Which of the following are 3 common types of flow control?
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance

18. This layer creates a virtual circuit before transmitting between two end stations.
Data - segment - packet - frame - bit
Transport
The Session layer creates sessions between different hosts' applications.
Source and destination MAC address and FCS field

19. This layer supports flow control and sequencing.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
The Data Link layer frames packets received from the Network layer.
Hub

20. Which layer segments and reassembles data into a data stream?
Decrease the window size.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Bridge or switch

21. What are two purposes for segmentation with a bridge?
3 - 2 - 1 - none
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

22. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
11000000.10101000.00001010.00001111
3 - 2 - 1 - none
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.
84:D2:43:B3

23. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data Link
To provide a means for the receiver to govern the amount of data sent by the sender.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit

24. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer frames packets received from the Network layer.
198.211.57.209
Switch or bridge

25. Which layer is represented by packets?
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

26. Which layer is represented by bits?
Buffering - windowing - congestion avoidance
Transport
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

27. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
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.
Transport

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

29. Convert 192.168.10.15 to binary format.
Transport
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111
00001010.00001011.00001100.01100011

30. Logical addressing is used at this layer.
Fiber-opticcable
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
D8:1B:3D:76

31. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

32. 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?
Router
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link

33. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.

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
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
132.210.184.166

35. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
CA:F5:83:EB

36. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
Transport
198.211.57.209
Source and destination MAC address and FCS field

37. Why does the data communication industry use the layered OSI reference model? (Name two)
Data Link & Physical
Segments - packets - frames - bits
Switch or bridge
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.

38. 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?
CA:F5:83:EB
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
Switch to switch - host to host - switch to host

39. Which two fields are contained within an IEEE Ethernet frame header?
The Network layer creates packets out of segments handed down from the Transport layer.
Source and destination MAC address and FCS field
Router
To create more collision domains and to add more bandwidth for users.

40. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)

41. This device breaks up collision domains and broadcast domains.
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).
CA:F5:83:EB
198.211.57.209
Router

42. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Transport
Transport
Hub and repeater

43. Which layer provides logical addressing that routers will use for path determination?
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
The Network layer provides logical addressing - typically IP addressing and routing.

44. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Layer 4
Router
Data Link
132.210.184.166

45. This device sends and receives information about the Network layer.
Data Link
RJ45 UTP rolled cable.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

46. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for the electrical and mechanical connections between devices.

47. This device uses hardware addresses to filter a network.
198.211.57.209
Bridge or switch
Data Link (LLC sublayer)
CA:F5:83:EB

48. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

49. Name three types of connections that can use full duplex.
Transport
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host

50. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Fiber-opticcable
3 - 2 - 1 - none
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.