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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. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Router
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.

2. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Hub
Network
84:D2:43:B3
Switch or bridge

3. This device breaks up collision domains and broadcast domains.
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer frames packets received from the Network layer.
Decrease the window size.

4. 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?
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
The Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111

5. Which of the following are 3 common types of flow control?
D8:1B:3D:76
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
Bridge or switch

6. Name three types of connections that can use full duplex.
10101100.00010000.00010100.00110111
Router
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Data Link (LLC sublayer)
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

8. When data is encapsulated - which is the correct order?
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data - segment - packet - frame - bit
204.51.170.85

9. This device sends and receives information about the Network layer.
Router
00001010.00001011.00001100.01100011
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance

10. This layer creates a virtual circuit before transmitting between two end stations.
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 Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)
Transport

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

12. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76
183/B7

13. 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 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 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.
Hub
Buffering - windowing - congestion avoidance

14. Which layer is represented by packets?
Data Link (LLC sublayer)
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits

15. Which layer provides logical addressing that routers will use for path determination?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection

16. What is the purpose of flow control?
Fiber-opticcable
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.
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.

17. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Network
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).
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.

18. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
204.51.170.85
The Network layer provides routing through an internetwork and logical addressing.

19. This layer supports flow control and sequencing.
Data Link (LLC sublayer)
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance

20. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Hub and repeater
Layer 4
84:D2:43:B3

21. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
204.51.170.85
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4

22. This device can measure the distance to a remote network.
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111
Router
Switch or bridge

23. Ethernet is defined at these layers.
Hub and repeater
Data Link & Physical
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.
Transport

24. Convert 192.168.10.15 to binary format.
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

25. This layer uses service access points.
Data Link (LLC sublayer)
198.211.57.209
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

26. 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?
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.
The Physical layer is responsible for the electrical and mechanical connections between devices.

27. Which layer is represented by segments?
Data Link
The Transport layer segments user data.
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

28. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85
D8:1B:3D:76

29. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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
Segments - packets - frames - bits
Router

30. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Transport
Network
Layer 4
CA:F5:83:EB

31. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

32. 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.
Router
Source and destination MAC address and FCS field
Transport

33. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.

34. This device uses hardware addresses to filter a network.
Transport
RJ45 UTP rolled cable.
Bridge or switch
Fiber-opticcable

35. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

36. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer creates sessions between different hosts' applications.
Network
Buffering - windowing - congestion avoidance
Hub and repeater

37. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Hub and repeater
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

38. This device creates many smaller collision domains - but the network is still one large broadcast domain.
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 Physical layer is responsible for the electrical and mechanical connections between devices.
Switch or bridge
CA:F5:83:EB

39. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch or bridge
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.
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.

40. 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.
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.
Transport

41. Which layer segments and reassembles data into a data stream?
00001010.00001011.00001100.01100011
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
204.51.170.85

42. This device creates one big collision domain and one large broadcast domain.
84:D2:43:B3
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
3 - 2 - 1 - none
Hub

43. Segmentation of a data stream happens at which layer of the OSI model?
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
Router
10101100.00010000.00010100.00110111

44. 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?
RJ45 UTP crossover cable.
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
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.

45. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
48 bits (6 bytes)

46. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Presentation layer makes sure that data is in a readable format for the Application layer.
D8:1B:3D:76
RJ45 UTP rolled cable.
Switch or bridge

47. Convert 10.11.12.99 to binary 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).
00001010.00001011.00001100.01100011
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical

48. Which layer is represented by bits?
Transport
Decrease the window size.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

49. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Hub
183/B7
Hub and repeater

50. Which two fields are contained within an IEEE Ethernet frame header?
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field