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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 represented by frames?
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3
Buffering - windowing - congestion avoidance
Transport

2. 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 Transport layer segments user data.
Data Link
The Session layer creates sessions between different hosts' applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

3. Ethernet is defined at these layers.
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
Router
Hub

4. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Transport
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.

5. This device can never run full duplex.
Router
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
183/B7

6. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data - segment - packet - frame - bit
The Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.

7. 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.
204.51.170.85
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 Presentation layer makes sure that data is in a readable format for the Application layer.

8. This layer supports flow control and sequencing.
Transport
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
Hub

9. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Network layer creates packets out of segments handed down from the Transport layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166
The Network layer provides logical addressing - typically IP addressing and routing.

10. Name four router functions.
RJ45 UTP crossover cable.
84:D2:43:B3
198.211.57.209
Packet switching - Packet filtering - Internetwork communication - Path selection

11. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
Segments - packets - frames - bits
Switch to switch - host to host - switch to host

12. 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.
Data Link
3 - 2 - 1 - none
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).

13. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
183/B7
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166

14. Why does the data communication industry use the layered OSI reference model? (Name two)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
11000000.10101000.00001010.00001111
The Data Link layer frames packets received from the Network layer.

15. This layer creates a virtual circuit before transmitting between two end stations.
Source and destination MAC address and FCS field
Data Link
CA:F5:83:EB
Transport

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

17. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
RJ45 UTP crossover cable.
Fiber-opticcable
The Network layer provides logical addressing - typically IP addressing and routing.
D8:1B:3D:76

18. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
132.210.184.166
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.
Data Link

19. This device can measure the distance to a remote network.
Switch to switch - host to host - switch to host
Router
Transport
11000000.10101000.00001010.00001111

20. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.

21. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.
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

22. This device uses hardware addresses to filter a network.
Decrease the window size.
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer sets up - maintains - and terminates sessions between applications.

23. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Bridge or switch
Decrease the window size.
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

24. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166
00001010.00001011.00001100.01100011
Router

25. Logical addressing is used at this layer.
204.51.170.85
3 - 2 - 1 - none
Network
Bridge or switch

26. Which layer is represented by segments?
183/B7
The Data Link layer frames packets received from the Network layer.
RJ45 UTP rolled cable.
The Transport layer segments user data.

27. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
198.211.57.209

28. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Data Link
Switch or bridge
11000000.10101000.00001010.00001111

29. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Data Link layer frames packets received from the Network layer.
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)
84:D2:43:B3

30. This device sends and receives information about the Network layer.
Router
Hub
The Data Link layer frames packets received from the Network layer.
10101100.00010000.00010100.00110111

31. Convert 192.168.10.15 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
183/B7
The Physical layer is responsible for the electrical and mechanical connections between devices.

32. This device breaks up collision domains and broadcast domains.
Router
Network
Data Link
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.

33. Which layer segments and reassembles data into a data stream?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
Transport
Router

34. Segmentation of a data stream happens at which layer of the OSI model?
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
To provide a means for the receiver to govern the amount of data sent by the sender.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

35. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Fiber-opticcable
Bridge or switch
Data Link (LLC sublayer)

36. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4
The Transport layer user virtual circuits to create a reliable connection between two hosts.

37. This layer uses service access points.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.

38. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

39. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' applications.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection

40. 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.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
3 - 2 - 1 - none

41. 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?
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

42. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
48 bits (6 bytes)
Fiber-opticcable

43. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
48 bits (6 bytes)
10101100.00010000.00010100.00110111
Data Link
Network

44. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Hub and repeater
Segments - packets - frames - bits
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub

45. What is the bit length and expression form of a MAC address?
10101100.00010000.00010100.00110111
48 bits (6 bytes)
132.210.184.166
00001010.00001011.00001100.01100011

46. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
183/B7
Layer 4
To create more collision domains and to add more bandwidth for users.
Network

47. Convert 172.16.20.55 to binary format.
3 - 2 - 1 - none
10101100.00010000.00010100.00110111
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

48. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Data - segment - packet - frame - bit
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7
CA:F5:83:EB

49. 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
RJ45 UTP crossover cable.
132.210.184.166
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).

50. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.