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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 10000100.11010010.10111000.10100110 to decimal IP format.
183/B7
Layer 4
Router
132.210.184.166

2. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Session layer sets up - maintains - and terminates sessions between applications.
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.
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.

3. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
D8:1B:3D:76
RJ45 UTP rolled cable.
Switch to switch - host to host - switch to host
Transport

4. Which two fields are contained within an IEEE Ethernet frame header?
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111

5. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Layer 4
Transport

6. 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 frames packets received from the Network layer.
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
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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.
Source and destination MAC address and FCS field
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

8. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link

9. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)

10. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
00001010.00001011.00001100.01100011
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB
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

11. Which layer provides logical addressing that routers will use for path determination?
Transport
00001010.00001011.00001100.01100011
Router
The Network layer provides logical addressing - typically IP addressing and routing.

12. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.
Hub and repeater
11000000.10101000.00001010.00001111

13. Which layer segments and reassembles data into a data stream?
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.
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7

14. Convert 192.168.10.15 to binary format.
Data Link & Physical
132.210.184.166
11000000.10101000.00001010.00001111
Fiber-opticcable

15. This device sends and receives information about the Network layer.
Hub
Network
Router
Layer 4

16. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
CA:F5:83:EB
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.

17. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
3 - 2 - 1 - none
Transport
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

18. This device breaks up collision domains and broadcast domains.
The Data Link layer frames packets received from the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
Hub

19. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Switch to switch - host to host - switch to host
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection

20. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011

21. This layer creates a virtual circuit before transmitting between two end stations.
Segments - packets - frames - bits
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

22. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Hub and repeater
The Session layer creates sessions between different hosts' applications.
Segments - packets - frames - bits
Transport

23. What is the bit length and expression form of a MAC address?
To create more collision domains and to add more bandwidth for users.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link
48 bits (6 bytes)

24. When data is encapsulated - which is the correct order?
The Session layer creates sessions between different hosts' applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data - segment - packet - frame - bit
Transport

25. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
3 - 2 - 1 - none
Segments - packets - frames - bits
D8:1B:3D:76

26. This layer supports flow control and sequencing.
Buffering - windowing - congestion avoidance
Network
Layer 4
Transport

27. This device uses hardware addresses to filter a network.
The Transport layer segments user data.
Bridge or switch
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

28. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
RJ45 UTP crossover cable.
204.51.170.85
Hub and repeater
Fiber-opticcable

29. Logical addressing is used at this layer.
Segments - packets - frames - bits
Network
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.

30. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Transport
Layer 4
Router
CA:F5:83:EB

31. Which layer is represented by segments?
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 Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.

32. Ethernet is defined at these layers.
11000000.10101000.00001010.00001111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater
Data Link & Physical

33. This device can measure the distance to a remote network.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
The Network layer provides logical addressing - typically IP addressing and routing.
Transport

34. What type of RJ45 UTP cable is used between switches?
Decrease the window size.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.

35. Which layer is responsible for creating - managing - and terminating sessions between applications?
Switch or bridge
The Session layer sets up - maintains - and terminates sessions between applications.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

36. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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.
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 Session layer sets up - maintains - and terminates sessions between applications.

37. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
The Session layer creates sessions between different hosts' applications.
Switch or bridge
10101100.00010000.00010100.00110111

38. Name four router functions.
Data Link & Physical
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.
Hub

39. 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?
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.
Decrease the window size.
Layer 4

40. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
The Data Link layer is responsible for the framing of data packets.
Hub
183/B7

41. 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
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
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).

42. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub
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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

43. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
84:D2:43:B3
Hub

44. This device can never run full duplex.
Router
204.51.170.85
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.

45. What is the purpose of flow control?
84:D2:43:B3
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
The Data Link layer is responsible for the framing of data packets.

46. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

47. 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.
Data Link (LLC sublayer)
Segments - packets - frames - bits
Fiber-opticcable

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

49. Which layer is represented by bits?
RJ45 UTP crossover cable.
Data Link & Physical
00001010.00001011.00001100.01100011
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

50. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Network
132.210.184.166
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.