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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?
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub and repeater

2. This device can never run full duplex.
Decrease the window size.
3 - 2 - 1 - none
Hub
10101100.00010000.00010100.00110111

3. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
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.

4. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
84:D2:43:B3
Network
Transport

5. 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?
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none
Hub

6. Which layer segments and reassembles data into a data stream?
Segments - packets - frames - bits
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
Network

7. Which two fields are contained within an IEEE Ethernet frame header?
11000000.10101000.00001010.00001111
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.
Decrease the window size.

8. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Buffering - windowing - congestion avoidance
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

9. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch
Fiber-opticcable
Hub and repeater

10. 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?
84:D2:43:B3
Decrease the window size.
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 provides routing through an internetwork and logical addressing.

11. Ethernet is defined at these layers.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011
Data Link & Physical
Network

12. What are two purposes for segmentation with a bridge?
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
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.

13. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
Network
Decrease the window size.
84:D2:43:B3

14. Name four router functions.
Data Link (LLC sublayer)
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
The Data Link layer frames packets received from the Network layer.

15. Convert 10.11.12.99 to binary format.
Switch or bridge
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011
The Physical layer is responsible for the electrical and mechanical connections between devices.

16. What is the bit length and expression form of a MAC address?
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Buffering - windowing - congestion avoidance
48 bits (6 bytes)

17. Convert 11001010.11110101.10000011.11101011 to hexadecimal 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).
Layer 4
CA:F5:83:EB
The Transport layer segments user data.

18. 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?
Network
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

19. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Data Link layer frames packets received from the Network layer.
Network
Switch or bridge
Segments - packets - frames - bits

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

21. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Decrease the window size.
Fiber-opticcable
48 bits (6 bytes)
The Physical layer is responsible for the electrical and mechanical connections between devices.

22. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Segments - packets - frames - bits
Network
11000000.10101000.00001010.00001111
Decrease the window size.

23. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

24. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Network
RJ45 UTP rolled cable.
Switch or bridge
Fiber-opticcable

25. Segmentation of a data stream happens at which layer of the OSI model?
Data Link & Physical
Transport
D8:1B:3D:76
The Network layer provides routing through an internetwork and logical addressing.

26. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
RJ45 UTP crossover cable.
Router
00001010.00001011.00001100.01100011

27. Name three types of connections that can use full duplex.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
D8:1B:3D:76
Transport

28. This device can measure the distance to a remote network.
Router
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer sets up - maintains - and terminates sessions between applications.

29. This device sends and receives information about the Network layer.
Data Link (LLC sublayer)
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
Router

30. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Hub and repeater
The Data Link layer frames packets received from the Network layer.
Transport

31. When data is encapsulated - which is the correct order?
Bridge or switch
Data - segment - packet - frame - bit
Transport
00001010.00001011.00001100.01100011

32. At which layer is routing implemented - enabling connections and path selection between two end systems?
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
The Network layer provides routing through an internetwork and logical addressing.
Router

33. This layer uses service access points.
Hub
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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

35. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166

36. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.
Fiber-opticcable

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

38. Which layer is represented by frames?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.

39. This device breaks up collision domains and broadcast domains.
Network
Router
RJ45 UTP rolled cable.
Segments - packets - frames - bits

40. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
132.210.184.166
D8:1B:3D:76
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

41. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
Fiber-opticcable
The Data Link layer frames packets received from the Network layer.

42. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Router
10101100.00010000.00010100.00110111
Data Link

43. What is the purpose of flow control?
Router
132.210.184.166
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides logical addressing - typically IP addressing and routing.

44. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
Buffering - windowing - congestion avoidance
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

45. Which layer provides logical addressing that routers will use for path determination?
Segments - packets - frames - bits
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link (LLC sublayer)

46. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Switch to switch - host to host - switch to host
Router
Source and destination MAC address and FCS field

47. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Transport layer segments user data.
Buffering - windowing - congestion avoidance
198.211.57.209

48. Which layer is represented by bits?
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

49. Which layer is represented by segments?
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer segments user data.
132.210.184.166

50. This device creates one big collision domain and one large broadcast domain.
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub
84:D2:43:B3