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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. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer sets up - maintains - and terminates sessions between applications.
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
3 - 2 - 1 - none

2. This device creates one big collision domain and one large broadcast domain.
Hub and repeater
CA:F5:83:EB
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.
Hub

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Switch or bridge
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).
84:D2:43:B3

4. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
RJ45 UTP crossover cable.
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.

5. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Network
183/B7
Router

6. This device can measure the distance to a remote network.
Router
00001010.00001011.00001100.01100011
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.
Network

7. Which layer segments and reassembles data into a data stream?
Transport
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch

8. 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.
Transport
10101100.00010000.00010100.00110111
Router

9. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Switch to switch - host to host - switch to host
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

10. Name four router functions.
The Data Link layer frames packets received from the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch to switch - host to host - switch to host
198.211.57.209

11. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7

12. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Network
Data Link & Physical
Switch or bridge
Data - segment - packet - frame - bit

13. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
CA:F5:83:EB
Hub and repeater
3 - 2 - 1 - none
48 bits (6 bytes)

14. This device uses hardware addresses to filter a network.
The Presentation layer makes sure that data is in a readable format for the Application 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
To create more collision domains and to add more bandwidth for users.
Bridge or switch

15. Which layer is represented by frames?
Router
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.
The Network layer provides routing through an internetwork and logical addressing.

16. Ethernet is defined at these layers.
Source and destination MAC address and FCS field
Data Link & Physical
RJ45 UTP crossover cable.
Hub and repeater

17. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link
Switch to switch - host to host - switch to host
Switch or bridge
RJ45 UTP rolled cable.

18. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Network layer provides routing through an internetwork and logical addressing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
CA:F5:83:EB
198.211.57.209

19. Name three types of connections that can use full duplex.
Bridge or switch
132.210.184.166
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.

20. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
The Session layer sets up - maintains - and terminates sessions between applications.
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 Transport layer user virtual circuits to create a reliable connection between two hosts.

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.
RJ45 UTP rolled cable.
183/B7
Hub and repeater

22. Which of the following are 3 common types of 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.
The Data Link layer is responsible for the framing of data packets.
Buffering - windowing - congestion avoidance
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).

23. What is the purpose of flow control?
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.

24. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3
Segments - packets - frames - bits
Transport

25. What is the bit length and expression form of a MAC address?
11000000.10101000.00001010.00001111
Router
48 bits (6 bytes)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

26. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
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

27. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Source and destination MAC address and FCS field
D8:1B:3D:76
Layer 4
Router

28. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
204.51.170.85
To provide a means for the receiver to govern the amount of data sent by the sender.
Layer 4
Data Link (LLC sublayer)

29. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates 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.
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

30. 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.
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 Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit

31. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To create more collision domains and to add more bandwidth for users.

32. 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?
Router
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Decrease the window size.

33. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
132.210.184.166
Fiber-opticcable

34. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
Router

35. Segmentation of a data stream happens at which layer of the OSI model?
Transport
RJ45 UTP rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7

36. This layer supports flow control and sequencing.
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
Router
The Network layer provides routing through an internetwork and logical addressing.

37. 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?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
00001010.00001011.00001100.01100011
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link

38. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP crossover cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.

39. Logical addressing is used at this layer.
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
Source and destination MAC address and FCS field
Network

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
10101100.00010000.00010100.00110111
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).
Hub
00001010.00001011.00001100.01100011

41. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable
Transport

42. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Transport
The Data Link layer is responsible for the framing of data packets.
The Network layer provides routing through an internetwork and logical addressing.
Network

43. When data is encapsulated - which is the correct order?
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
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 Data Link layer is responsible for the framing of data packets.

44. Convert 11001010.11110101.10000011.11101011 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.
Source and destination MAC address and FCS field
48 bits (6 bytes)
CA:F5:83:EB

45. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data - segment - packet - frame - bit
204.51.170.85
198.211.57.209
Transport

46. Convert 192.168.10.15 to binary format.
84:D2:43:B3
Network
11000000.10101000.00001010.00001111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

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

48. This device sends and receives information about the Network layer.
Router
Hub
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

49. Convert 10.11.12.99 to binary format.
Transport
Transport
00001010.00001011.00001100.01100011
Router

50. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
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.