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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. Ethernet is defined at these layers.
Data Link & Physical
183/B7
204.51.170.85
Network

2. Segmentation of a data stream happens at which layer of the OSI model?
Data Link (LLC sublayer)
84:D2:43:B3
Transport
11000000.10101000.00001010.00001111

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?
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
204.51.170.85
Bridge or switch

4. 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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

5. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Bridge or switch
Switch to switch - host to host - switch to host
The Transport layer segments user data.

6. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance
Network

7. This layer supports flow control and sequencing.
Data Link
Transport
11000000.10101000.00001010.00001111
D8:1B:3D:76

8. 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 Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.
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 Data Link layer frames packets received from the Network layer.

9. This device creates many smaller collision domains - but the network is still one large broadcast domain.
84:D2:43:B3
RJ45 UTP crossover cable.
3 - 2 - 1 - none
Switch or bridge

10. 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.
Bridge or switch
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. 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.
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub

12. Convert 10.11.12.99 to binary format.
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' applications.
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

13. Which layer segments and reassembles data into a data stream?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
Hub
Transport

14. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data - segment - packet - frame - bit
Hub and repeater
Transport
CA:F5:83:EB

15. What are two purposes for segmentation with a bridge?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7
To create more collision domains and to add more bandwidth for users.

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

17. This layer creates a virtual circuit before transmitting between two end stations.
The Transport layer segments user data.
Transport
Segments - packets - frames - bits
10101100.00010000.00010100.00110111

18. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
00001010.00001011.00001100.01100011
132.210.184.166
Data Link (LLC sublayer)
The Network layer creates packets out of segments handed down from the Transport layer.

19. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.

20. Convert 192.168.10.15 to binary format.
Layer 4
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.

21. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
132.210.184.166
Switch to switch - host to host - switch to host
198.211.57.209
Bridge or switch

22. This device can measure the distance to a remote network.
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
84:D2:43:B3
Network
Router

23. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
Segments - packets - frames - bits
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.

24. 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.
Data Link (LLC sublayer)
Hub and repeater
Layer 4

25. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
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

26. This device can never run full duplex.
Segments - packets - frames - bits
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
Hub
Data Link (LLC sublayer)

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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).
00001010.00001011.00001100.01100011

28. 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.
CA:F5:83:EB
Buffering - windowing - congestion avoidance
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

29. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Switch or bridge
Router
198.211.57.209
84:D2:43:B3

30. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Segments - packets - frames - bits
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.
Network

31. 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.
48 bits (6 bytes)
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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

33. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
CA:F5:83:EB
Transport
11000000.10101000.00001010.00001111

34. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209
Segments - packets - frames - bits

35. When data is encapsulated - which is the correct order?
Decrease the window size.
Data - segment - packet - frame - bit
The Session layer creates sessions between different hosts' applications.
Bridge or switch

36. Name four router functions.
Data - segment - packet - frame - bit
Bridge or switch
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection

37. Which layer is represented by bits?
Hub
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Network layer provides logical addressing - typically IP addressing and routing.

38. This device creates one big collision domain and one large broadcast domain.
11000000.10101000.00001010.00001111
Router
Hub
10101100.00010000.00010100.00110111

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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
183/B7
RJ45 UTP rolled cable.

40. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.

41. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Hub
The Data Link layer is responsible for the framing of data packets.
The Session layer creates sessions between different hosts' applications.
183/B7

42. What is the purpose of flow control?
Network
RJ45 UTP crossover cable.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link

43. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
Decrease the window size.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Bridge or switch

44. Logical addressing is used at this layer.
Bridge or switch
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
Network

45. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Router
Transport
Bridge or switch

46. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.
CA:F5:83:EB

47. This device sends and receives information about the Network layer.
Router
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
00001010.00001011.00001100.01100011

48. Why does the data communication industry use the layered OSI reference model? (Name two)
Layer 4
The Network layer provides logical addressing - typically IP addressing and routing.
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.
Hub

49. Which layer specifies voltage - wire speed - and pinout cables and moves bits 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 Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge
The Data Link layer frames packets received from the Network layer.

50. Which layer is responsible for creating - managing - and terminating sessions between applications?
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111
The Session layer sets up - maintains - and terminates sessions between applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.