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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. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Switch or bridge
Switch to switch - host to host - switch to host
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.

2. Which two fields are contained within an IEEE Ethernet frame header?
To create more collision domains and to add more bandwidth for users.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host

3. This device creates one big collision domain and one large broadcast domain.
RJ45 UTP crossover cable.
Hub
The Transport layer segments user data.
Data Link

4. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
183/B7
The Physical layer is responsible for the electrical and mechanical connections between devices.
Buffering - windowing - congestion avoidance
Data Link & Physical

5. 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.
The Network layer provides logical addressing - typically IP addressing and routing.

6. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
204.51.170.85
The Network layer provides routing through an internetwork and logical addressing.

7. Which of the following are 3 common types of flow control?
48 bits (6 bytes)
Buffering - windowing - congestion avoidance
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).

8. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Decrease the window size.
RJ45 UTP crossover cable.
Switch or bridge
Fiber-opticcable

9. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer segments user data.
3 - 2 - 1 - none

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

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Source and destination MAC address and FCS field
198.211.57.209
3 - 2 - 1 - none
Router

12. What is the bit length and expression form of a MAC address?
132.210.184.166
Router
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.
48 bits (6 bytes)

13. This layer uses service access points.
Data Link (LLC sublayer)
Switch or bridge
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.

14. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Data Link (LLC sublayer)
Hub
Transport

15. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Data - segment - packet - frame - bit
Layer 4

16. Name four router functions.
Network
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport

17. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Data Link (LLC sublayer)
CA:F5:83:EB
3 - 2 - 1 - none
84:D2:43:B3

18. This device sends and receives information about the Network layer.
Router
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
CA:F5:83:EB

19. What type of RJ45 UTP cable is used between switches?
D8:1B:3D:76
Data Link (LLC sublayer)
Fiber-opticcable
RJ45 UTP crossover cable.

20. Logical addressing is used at this layer.
Transport
Hub
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

21. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Hub
Router
Data Link

22. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Fiber-opticcable
198.211.57.209
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

23. Which layer provides logical addressing that routers will use for path determination?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP crossover cable.

24. Ethernet is defined at these layers.
Data Link & Physical
Source and destination MAC address and FCS field
Transport
The Session layer sets up - maintains - and terminates sessions between applications.

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Transport layer segments user data.
The Session layer sets up - maintains - and terminates sessions between applications.
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).
Decrease the window size.

26. 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?
Hub and repeater
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Decrease the window size.

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
D8:1B:3D:76
204.51.170.85
Fiber-opticcable
84:D2:43:B3

28. Convert 10.11.12.99 to binary format.
Hub and repeater
Switch or bridge
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
00001010.00001011.00001100.01100011

29. 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?
198.211.57.209
Switch or bridge
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

30. Convert 172.16.20.55 to binary format.
84:D2:43:B3
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.
10101100.00010000.00010100.00110111

31. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Fiber-opticcable
Router
Hub and repeater

32. This device breaks up collision domains and broadcast domains.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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 Transport layer segments user data.
Router

33. Which layer segments and reassembles data into a data stream?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

34. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7
Segments - packets - frames - bits
Switch or bridge

35. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Hub and repeater

36. Convert 192.168.10.15 to binary format.
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
11000000.10101000.00001010.00001111
Hub

37. This device can never run full duplex.
Router
Fiber-opticcable
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

38. This device uses hardware addresses to filter a network.
Transport
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
The Network layer provides logical addressing - typically IP addressing and routing.

39. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
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.

40. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Data - segment - packet - frame - bit
The Session layer creates sessions between different hosts' applications.
The Network layer provides routing through an internetwork and logical addressing.

41. Which layer is represented by frames?
10101100.00010000.00010100.00110111
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.

42. Which layer is represented by packets?
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.
11000000.10101000.00001010.00001111

43. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none

44. Why does the data communication industry use the layered OSI reference model? (Name two)
Fiber-opticcable
D8:1B:3D:76
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.

45. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field

46. Name three types of connections that can use full duplex.
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host
Transport
Transport

47. 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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
00001010.00001011.00001100.01100011
Switch or bridge

48. This layer creates a virtual circuit before transmitting between two end stations.
00001010.00001011.00001100.01100011
Transport
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)

49. Segmentation of a data stream happens at which layer of the OSI model?
Transport
198.211.57.209
Network
132.210.184.166

50. Which layer is represented by bits?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
Hub and repeater