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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 is responsible for creating - managing - and terminating sessions between applications?
Data Link (LLC sublayer)
Decrease the window size.
The Session layer sets up - maintains - and terminates sessions between applications.
Network

2. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Network
Segments - packets - frames - bits
Source and destination MAC address and FCS field

3. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer is responsible for the framing of data packets.
Data Link
Hub

4. Convert 192.168.10.15 to binary format.
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111
84:D2:43:B3

5. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Switch or bridge
84:D2:43:B3
RJ45 UTP crossover cable.
Segments - packets - frames - bits

6. Convert 172.16.20.55 to binary format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
10101100.00010000.00010100.00110111
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111

7. At which layer is routing implemented - enabling connections and path selection between two end systems?
Segments - packets - frames - bits
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
D8:1B:3D:76
The Network layer provides routing through an internetwork and logical addressing.

8. This layer creates a virtual circuit before transmitting between two end stations.
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.
Switch to switch - host to host - switch to host
183/B7

9. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
RJ45 UTP crossover cable.
48 bits (6 bytes)
Packet switching - Packet filtering - Internetwork communication - Path selection

10. What is the purpose of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
00001010.00001011.00001100.01100011

11. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
3 - 2 - 1 - none
Network
Hub and repeater
Network

12. Convert 10.11.12.99 to binary format.
204.51.170.85
3 - 2 - 1 - none
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011

13. This layer supports flow control and sequencing.
The Network layer provides routing through an internetwork and logical addressing.
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits

14. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Bridge or switch
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).
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

15. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Hub and repeater
132.210.184.166
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).
3 - 2 - 1 - none

16. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Network
Router
Segments - packets - frames - bits
D8:1B:3D:76

17. Name four router functions.
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

18. This device sends and receives information about the Network layer.
Network
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

19. Which layer is represented by segments?
The Transport layer segments user data.
D8:1B:3D:76
10101100.00010000.00010100.00110111
Data Link & Physical

20. This device can never run full duplex.
48 bits (6 bytes)
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).
Hub
RJ45 UTP crossover cable.

21. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link & Physical
Switch to switch - host to host - switch to host
183/B7
198.211.57.209

22. Name three types of connections that can use full duplex.
Buffering - windowing - congestion avoidance
Transport
Transport
Switch to switch - host to host - switch to host

23. This device breaks up collision domains and broadcast domains.
Layer 4
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
RJ45 UTP rolled cable.

24. 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.
CA:F5:83:EB
The Transport layer segments user data.
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

25. Why does the data communication industry use the layered OSI reference model? (Name two)
3 - 2 - 1 - none
Network
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.

26. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub
10101100.00010000.00010100.00110111

27. When data is encapsulated - which is the correct order?
Network
Transport
Data Link & Physical
Data - segment - packet - frame - bit

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Session layer creates sessions between different hosts' applications.
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

29. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.

30. Segmentation of a data stream happens at which layer of the OSI model?
10101100.00010000.00010100.00110111
CA:F5:83:EB
183/B7
Transport

31. Which of the following are 3 common types of flow control?
The Network layer provides logical addressing - typically IP addressing and routing.
Buffering - windowing - congestion avoidance
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).
10101100.00010000.00010100.00110111

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.
The Session layer creates sessions between different hosts' applications.
Layer 4

33. Which layer is represented by bits?
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
48 bits (6 bytes)
Hub

34. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Bridge or switch
The Data Link layer is responsible for the framing of data packets.
Transport
84:D2:43:B3

35. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
RJ45 UTP rolled cable.
183/B7
RJ45 UTP crossover cable.
The Session layer creates sessions between different hosts' applications.

36. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
3 - 2 - 1 - none

37. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Network layer provides logical addressing - typically IP addressing and routing.
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
Bridge or switch

38. What type of RJ45 UTP cable is used between switches?
3 - 2 - 1 - none
48 bits (6 bytes)
RJ45 UTP crossover cable.
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

39. Which layer is represented by packets?
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).
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 Network layer creates packets out of segments handed down from the Transport layer.

40. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
00001010.00001011.00001100.01100011
Data - segment - packet - frame - bit
RJ45 UTP rolled cable.
Hub

41. This device can measure the distance to a remote network.
Bridge or switch
Router
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater

42. This device creates one big collision domain and one large broadcast domain.
The Data Link layer is responsible for the framing of data packets.
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
132.210.184.166

43. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
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.
Data Link

44. What is the bit length and expression form of a MAC address?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
48 bits (6 bytes)
11000000.10101000.00001010.00001111

45. Ethernet is defined at these layers.
Data Link & Physical
Hub and repeater
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

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

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47. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Network layer provides routing through an internetwork and logical addressing.
Switch or bridge
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 two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.
Segments - packets - frames - bits
Router

49. What are two purposes for segmentation with a bridge?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3

50. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.
Layer 4
Switch to switch - host to host - switch to host