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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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data - segment - packet - frame - bit
198.211.57.209
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.

2. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Network layer provides routing through an internetwork and logical addressing.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

3. Which layer is represented by segments?
Data Link & Physical
Data Link
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

4. Name three types of connections that can use full duplex.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch to switch - host to host - switch to host
Router
Network

5. Why does the data communication industry use the layered OSI reference model? (Name two)
Fiber-opticcable
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.
183/B7

6. This layer supports flow control and sequencing.
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
The Data Link layer is responsible for the framing of data packets.

7. At which layer is routing implemented - enabling connections and path selection between two end systems?
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

8. Which layer segments and reassembles data into a data stream?
CA:F5:83:EB
D8:1B:3D:76
Transport
RJ45 UTP rolled cable.

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

10. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical

11. Segmentation of a data stream happens at which layer of the OSI model?
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

12. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
CA:F5:83:EB
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85

13. Name four router functions.
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.
D8:1B:3D:76

14. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
00001010.00001011.00001100.01100011
84:D2:43:B3
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection

15. 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.
Buffering - windowing - congestion avoidance
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

16. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.

17. When data is encapsulated - which is the correct order?
The Physical layer is responsible for the electrical and mechanical connections between devices.
00001010.00001011.00001100.01100011
Hub
Data - segment - packet - frame - bit

18. Convert 192.168.10.15 to binary format.
Router
11000000.10101000.00001010.00001111
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.

19. What is the bit length and expression form of a MAC address?
Network
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.
Buffering - windowing - congestion avoidance

20. This device sends and receives information about the Network layer.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
Network

21. This device uses hardware addresses to filter a network.
Transport
204.51.170.85
Bridge or switch
Segments - packets - frames - bits

22. This device creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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
Bridge or switch

23. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link
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.
Data Link (LLC sublayer)

24. Convert 10.11.12.99 to binary format.
D8:1B:3D:76
CA:F5:83:EB
00001010.00001011.00001100.01100011
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.

25. 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.
Bridge or switch
Switch to switch - host to host - switch to host
CA:F5:83:EB

26. 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
3 - 2 - 1 - none
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.

27. 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.
Transport
3 - 2 - 1 - none
Data Link (LLC sublayer)

28. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host
Network
Hub and repeater

29. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Session layer sets up - maintains - and terminates sessions between applications.
D8:1B:3D:76
48 bits (6 bytes)
Data - segment - packet - frame - bit

30. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
RJ45 UTP rolled cable.
10101100.00010000.00010100.00110111

31. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Transport
Switch or bridge
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

32. Ethernet is defined at these layers.
Data Link & Physical
CA:F5:83:EB
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

33. Which layer is represented by bits?
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

34. 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?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.
Decrease the window size.

35. This device can measure the distance to a remote network.
Hub and repeater
CA:F5:83:EB
Router
183/B7

36. Which two fields are contained within an IEEE Ethernet frame header?
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 transporting 1s and 0s in a digital signal.
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit

37. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.
The Data Link layer frames packets received from the Network layer.

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?
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

39. This layer creates a virtual circuit before transmitting between two end stations.
Source and destination MAC address and FCS field
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.
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

41. 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.
00001010.00001011.00001100.01100011
Transport
132.210.184.166

42. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Data Link
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

43. Which layer provides logical addressing that routers will use for path determination?
48 bits (6 bytes)
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
132.210.184.166

44. Which layer is represented by packets?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer creates packets out of segments handed down from the Transport layer.

45. Logical addressing is used at this layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none
Network
Router

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

47. What are two purposes for segmentation with a bridge?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.
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. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits

49. Which of the following are 3 common types of flow control?
3 - 2 - 1 - none
Router
Buffering - windowing - congestion avoidance
The Session layer creates sessions between different hosts' applications.

50. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
CA:F5:83:EB
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
204.51.170.85