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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 two fields are contained within an IEEE Ethernet frame header?
Segments - packets - frames - bits
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Source and destination MAC address and FCS field

2. This device creates many smaller collision domains - but the network is still one large broadcast domain.
11000000.10101000.00001010.00001111
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
The Data Link layer is responsible for the framing of data packets.

3. Why does the data communication industry use the layered OSI reference model? (Name two)
The Session layer sets up - maintains - and terminates sessions between applications.
48 bits (6 bytes)
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.
Data Link & Physical

4. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer sets up - maintains - and terminates sessions between applications.
The Session layer creates sessions between different hosts' applications.
Data Link

5. This layer creates a virtual circuit before transmitting between two end stations.
Router
Transport
The Data Link layer is responsible for the framing of data packets.
132.210.184.166

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)
3 - 2 - 1 - none

7. This layer uses service access points.
11000000.10101000.00001010.00001111
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.
Data Link (LLC sublayer)
48 bits (6 bytes)

8. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
204.51.170.85
198.211.57.209
The Session layer creates sessions between different hosts' applications.
132.210.184.166

9. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
The Transport layer segments user data.
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

10. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Transport
Hub and repeater
Router
11000000.10101000.00001010.00001111

11. Which layer is responsible for creating - managing - and terminating sessions between applications?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer sets up - maintains - and terminates sessions between applications.
Router

12. This device breaks up collision domains and broadcast domains.
Data Link & Physical
Router
The Session layer creates sessions between different hosts' applications.
Fiber-opticcable

13. 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?
Hub and repeater
Data Link & Physical
The Transport layer user virtual circuits to create a reliable connection between two hosts.
CA:F5:83:EB

14. Which layer is represented by bits?
11000000.10101000.00001010.00001111
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Network

15. When data is encapsulated - which is the correct order?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
Segments - packets - frames - bits

16. Which layer is represented by packets?
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
Bridge or switch

17. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Transport
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).
Segments - packets - frames - bits
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

18. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer frames packets received from the Network layer.
204.51.170.85

19. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides routing through an internetwork and logical addressing.
CA:F5:83:EB
Data Link & Physical

20. This device uses hardware addresses to filter a network.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Bridge or switch
Data - segment - packet - frame - bit
Data Link & Physical

21. Which layer is represented by segments?
The Transport layer segments user data.
Router
11000000.10101000.00001010.00001111
Hub

22. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Layer 4
Data - segment - packet - frame - bit
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.

23. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Transport
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.

24. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Network
The Network layer provides routing through an internetwork and logical addressing.
Transport

25. Ethernet is defined at these layers.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Bridge or switch
Data Link & Physical

26. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

27. This device sends and receives information about the Network layer.
84:D2:43:B3
198.211.57.209
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.

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

29. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
183/B7
Layer 4
Data Link & Physical
Router

30. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

31. What are two purposes for segmentation with a bridge?
Router
To create more collision domains and to add more bandwidth for users.
198.211.57.209
Segments - packets - frames - bits

32. This device can measure the distance to a remote network.
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.
Decrease the window size.
Router

33. Which layer is represented by frames?
84:D2:43:B3
Network
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field

34. 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?
Hub
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Data Link layer is responsible for the framing of data packets.

35. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
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.
84:D2:43:B3
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.

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer provides logical addressing - typically IP addressing and routing.
Segments - packets - frames - bits
204.51.170.85
The Data Link layer is responsible for the framing of data packets.

37. This device can never run full duplex.
The Network layer creates packets out of segments handed down from the Transport layer.
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).
Transport

38. Logical addressing is used at this layer.
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.
CA:F5:83:EB
Fiber-opticcable
Network

39. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
132.210.184.166
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 Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85

40. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
183/B7
Hub
Router

41. Name three types of connections that can use full duplex.
Segments - packets - frames - bits
Router
Switch to switch - host to host - switch to host
Data Link & Physical

42. 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.
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85
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.

43. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.
Data - segment - packet - frame - bit

44. 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
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
D8:1B:3D:76
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).
Fiber-opticcable

45. Which layer segments and reassembles data into a data stream?
Transport
Hub and repeater
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link

46. This device creates one big collision domain and one large broadcast domain.
Switch or bridge
The Transport layer segments user data.
Hub
00001010.00001011.00001100.01100011

47. Segmentation of a data stream happens at which layer of the OSI model?
Network
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.

48. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Data Link
The Data Link layer is responsible for the framing of data packets.
The Session layer sets up - maintains - and terminates sessions between applications.
Router

49. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
183/B7
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

50. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
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.