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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. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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.
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.

2. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data - segment - packet - frame - bit
Layer 4
132.210.184.166

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?
Data Link & Physical
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link

4. Which layer is represented by packets?
Transport
CA:F5:83:EB
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.

5. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable

6. Which layer is responsible for creating - managing - and terminating sessions between applications?
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
To provide a means for the receiver to govern the amount of data sent by the sender.

7. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link & Physical
Bridge or switch
Data Link (LLC sublayer)
Network

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

9. Which two fields are contained within an IEEE Ethernet frame header?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
To create more collision domains and to add more bandwidth for users.
Source and destination MAC address and FCS field

10. What are two purposes for segmentation with a bridge?
Fiber-opticcable
Switch to switch - host to host - switch to host
Data - segment - packet - frame - bit
To create more collision domains and to add more bandwidth for users.

11. 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 creates sessions between different hosts' applications.
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).
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

12. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
132.210.184.166
Buffering - windowing - congestion avoidance
Hub

13. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Data Link & Physical
Decrease the window size.
84:D2:43:B3
Source and destination MAC address and FCS field

14. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
CA:F5:83:EB
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.

15. Why does the data communication industry use the layered OSI reference model? (Name two)
Hub
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
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.

16. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data Link
Buffering - windowing - congestion avoidance
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer sets up - maintains - and terminates sessions between applications.

17. This device uses hardware addresses to filter a network.
Segments - packets - frames - bits
Bridge or switch
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

18. What type of RJ45 UTP cable is used between switches?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP rolled cable.
RJ45 UTP crossover cable.

19. 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?
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.

20. 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 provides routing through an internetwork and logical addressing.
Switch to switch - host to host - switch to host
183/B7

21. 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.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

22. This device can never run full duplex.
Fiber-opticcable
Source and destination MAC address and FCS field
Hub
The Session layer creates sessions between different hosts' applications.

23. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB
The Data Link layer is responsible for the framing of data packets.

24. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Fiber-opticcable
Data Link & Physical
204.51.170.85
Transport

25. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link
RJ45 UTP rolled cable.
Transport

26. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Router
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 Transport layer segments user data.

27. What is the bit length and expression form of a MAC address?
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.
RJ45 UTP rolled cable.
48 bits (6 bytes)

28. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
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

29. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
84:D2:43:B3
Fiber-opticcable
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

30. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Session layer creates sessions between different hosts' applications.
RJ45 UTP crossover cable.
Hub

31. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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.
Router
Hub
Segments - packets - frames - bits

32. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP rolled cable.

33. This layer uses service access points.
Packet switching - Packet filtering - Internetwork communication - Path selection
CA:F5:83:EB
Data Link & Physical
Data Link (LLC sublayer)

34. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Fiber-opticcable
The Session layer creates sessions between different hosts' applications.
Hub
132.210.184.166

35. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Bridge or switch
198.211.57.209
Switch or bridge

36. 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
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 takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
Data - segment - packet - frame - bit

37. What is the purpose of flow control?
CA:F5:83:EB
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

38. Logical addressing is used at this layer.
Switch or bridge
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
183/B7
The Data Link layer frames packets received from the Network layer.

40. Ethernet is defined at these layers.
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 Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
Switch to switch - host to host - switch to host

41. Convert 10.11.12.99 to binary format.
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.
CA:F5:83:EB
00001010.00001011.00001100.01100011

42. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
CA:F5:83:EB
198.211.57.209
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.

43. Convert 172.16.20.55 to binary format.
To provide a means for the receiver to govern the amount of data sent by the sender.
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111
3 - 2 - 1 - none

44. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
00001010.00001011.00001100.01100011
Data - segment - packet - frame - bit

45. Convert 11011000.00011011.00111101.01110110 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.
D8:1B:3D:76
CA:F5:83:EB
The Network layer creates packets out of segments handed down from the Transport layer.

46. This layer supports flow control and sequencing.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Source and destination MAC address and FCS field
CA:F5:83:EB

47. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Hub
Network
Hub and repeater

48. This device breaks up collision domains and broadcast domains.
The Network layer provides logical addressing - typically IP addressing and routing.
Router
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 Physical layer is responsible for the electrical and mechanical connections between devices.

49. This device can measure the distance to a remote network.
Router
The Data Link layer is responsible for the framing of data packets.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.

50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer is responsible for the framing of data packets.