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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. This device creates one big collision domain and one large broadcast domain.
To provide a means for the receiver to govern the amount of data sent by the sender.
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
Hub

2. Convert 10.11.12.99 to binary format.
Hub
00001010.00001011.00001100.01100011
RJ45 UTP rolled cable.
132.210.184.166

3. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
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.
132.210.184.166

4. 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.
Transport
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host

5. Which layer is responsible for creating - managing - and terminating sessions between applications?
204.51.170.85
Hub and repeater
Network
The Session layer sets up - maintains - and terminates sessions between applications.

6. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical

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

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8. Logical addressing is used at this layer.
84:D2:43:B3
48 bits (6 bytes)
Network
Transport

9. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer provides routing through an internetwork and logical addressing.
CA:F5:83:EB
Data Link
Hub

10. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
Decrease the window size.
Bridge or switch

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?
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
Segments - packets - frames - bits

12. Ethernet is defined at these layers.
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)
183/B7

13. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
D8:1B:3D:76
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host

14. This device can measure the distance to a remote network.
Router
CA:F5:83:EB
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub

15. What is the purpose of flow control?
RJ45 UTP rolled cable.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer frames packets received from the Network layer.

16. 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.
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.

17. 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?
The Network layer creates packets out of segments handed down from the Transport layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
Data - segment - packet - frame - bit

18. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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.
198.211.57.209
Layer 4
Data Link (LLC sublayer)

19. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
Bridge or switch
132.210.184.166

20. What is the bit length and expression form of a MAC address?
The Data Link layer frames packets received from the Network layer.
Hub
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Bridge or switch
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

22. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
204.51.170.85
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)

23. What are two purposes for segmentation with a bridge?
Router
Decrease the window size.
Data Link (LLC sublayer)
To create more collision domains and to add more bandwidth for users.

24. Which two fields are contained within an IEEE Ethernet frame header?
Hub
Source and destination MAC address and FCS field
204.51.170.85
183/B7

25. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host

26. Which of the following are 3 common types of flow control?
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
132.210.184.166
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.

27. Name four router functions.
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
Layer 4
The Session layer creates sessions between different hosts' applications.

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.
183/B7

29. Segmentation of a data stream happens at which layer of the OSI model?
The Data Link layer frames packets received from the Network layer.
Transport
Decrease the window size.
Router

30. This device sends and receives information about the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
00001010.00001011.00001100.01100011
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

31. What type of RJ45 UTP cable is used between switches?
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

32. Name three types of connections that can use full duplex.
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 Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.

33. This layer creates a virtual circuit before transmitting between two end stations.
Transport
D8:1B:3D:76
The Transport layer segments user data.
Data - segment - packet - frame - bit

34. This device uses hardware addresses to filter a network.
Transport
Bridge or switch
Layer 4
The Session layer creates sessions between different hosts' applications.

35. 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 is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

36. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Decrease the window size.
Segments - packets - frames - bits
3 - 2 - 1 - none

37. This layer uses service access points.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link (LLC sublayer)
The Transport layer segments user data.
Transport

38. Convert 172.16.20.55 to binary format.
The Data Link layer is responsible for the framing of data packets.
132.210.184.166
10101100.00010000.00010100.00110111
11000000.10101000.00001010.00001111

39. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209
Transport

40. 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
11000000.10101000.00001010.00001111
The Data Link layer frames packets received from the Network layer.
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).

41. This device creates many smaller collision domains - but the network is still one large broadcast domain.
D8:1B:3D:76
Switch or bridge
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

42. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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
Switch or bridge
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer is responsible for the framing of data packets.

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

44. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Transport
11000000.10101000.00001010.00001111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Buffering - windowing - congestion avoidance

45. Which layer is represented by segments?
132.210.184.166
Bridge or switch
Decrease the window size.
The Transport layer segments user data.

46. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
11000000.10101000.00001010.00001111
132.210.184.166
Fiber-opticcable
Network

47. This device can never run full duplex.
204.51.170.85
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub
Network

48. Which layer provides logical addressing that routers will use for path determination?
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

49. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Hub
Data Link & Physical
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.

50. Which layer segments and reassembles data into a data stream?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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
Transport
D8:1B:3D:76