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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?
Network
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link

2. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Layer 4
Network
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.

3. Convert 172.16.20.55 to binary format.
Hub
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.
10101100.00010000.00010100.00110111

4. Which layer is represented by segments?
The Transport layer segments user data.
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
84:D2:43:B3

5. What type of RJ45 UTP cable is used between switches?
The Data Link layer is responsible for the framing of data packets.
Hub
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111

6. What is the bit length and expression form of a MAC address?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
CA:F5:83:EB
48 bits (6 bytes)
Switch or bridge

7. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209
D8:1B:3D:76
132.210.184.166

8. Convert 192.168.10.15 to binary format.
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111
Data - segment - packet - frame - bit
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.

9. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Segments - packets - frames - bits
Fiber-opticcable
Switch or bridge
Buffering - windowing - congestion avoidance

10. Which two fields are contained within an IEEE Ethernet frame header?
183/B7
Decrease the window size.
Source and destination MAC address and FCS field
132.210.184.166

11. This device can never run full duplex.
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
Hub
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.

12. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit

13. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link (LLC sublayer)
RJ45 UTP rolled cable.
Network
Data Link

14. This device can measure the distance to a remote network.
Fiber-opticcable
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.
Router
48 bits (6 bytes)

15. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
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.
Transport

16. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Network layer provides logical addressing - typically IP addressing and routing.
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
The Data Link layer is responsible for the framing of data packets.

17. 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.
00001010.00001011.00001100.01100011
Router

18. Which layer segments and reassembles data into a data stream?
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.
Transport
Router
CA:F5:83:EB

19. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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.
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

20. 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?
Decrease the window size.
Hub
Network
Fiber-opticcable

21. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
10101100.00010000.00010100.00110111
The Session layer sets up - maintains - and terminates sessions between applications.
Layer 4
Segments - packets - frames - bits

22. What is the purpose of flow control?
The Data Link layer frames packets received from the Network layer.
Data - segment - packet - frame - bit
Data Link & Physical
To provide a means for the receiver to govern the amount of data sent by the sender.

23. 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 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
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.

24. This layer supports flow control and sequencing.
132.210.184.166
Hub
Network
Transport

25. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Segments - packets - frames - bits
Fiber-opticcable
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.

26. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable
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.

27. This device uses hardware addresses to filter a network.
Data Link & Physical
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).
Bridge or switch

28. 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 Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

29. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Data Link layer is responsible for the framing of data packets.
Hub
Data Link
132.210.184.166

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

31. This device creates one big collision domain and one large broadcast domain.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer creates sessions between different hosts' applications.
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.

32. This device breaks up collision domains and broadcast domains.
Router
Data Link & Physical
10101100.00010000.00010100.00110111
Data Link

33. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
D8:1B:3D:76

34. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Decrease the window size.
D8:1B:3D:76
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable

35. Which layer is represented by frames?
The Session layer creates sessions between different hosts' applications.
Hub and repeater
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB

36. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Hub
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
CA:F5:83:EB

37. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Bridge or switch
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

38. Segmentation of a data stream happens at which layer of the OSI model?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
Transport
Data Link & Physical

39. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
CA:F5:83:EB
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.
Segments - packets - frames - bits
10101100.00010000.00010100.00110111

40. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85

41. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link (LLC sublayer)
The Transport layer segments user data.

42. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
The Transport layer segments user data.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field

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

44. Which of the following are 3 common types of flow control?
Network
Router
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.

45. This layer uses service access points.
Hub
Buffering - windowing - congestion avoidance
The Transport layer segments user data.
Data Link (LLC sublayer)

46. This device sends and receives information about the Network layer.
Data Link & Physical
Router
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.

47. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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.
204.51.170.85
198.211.57.209

48. Logical addressing is used at this layer.
Network
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.
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.

49. Which layer provides logical addressing that routers will use for path determination?
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111

50. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
Hub and repeater