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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. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Hub
84:D2:43:B3
Buffering - windowing - congestion avoidance

2. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides logical addressing - typically IP addressing and routing.
Layer 4
00001010.00001011.00001100.01100011

3. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer is responsible for the framing of data packets.
Network

4. At which layer is routing implemented - enabling connections and path selection between two end systems?
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 provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
CA:F5:83:EB

5. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable
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 Network layer provides routing through an internetwork and logical addressing.

6. 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
Hub
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
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).

7. Which two fields are contained within an IEEE Ethernet frame header?
The Network layer provides logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.
Source and destination MAC address and FCS field
Transport

8. This layer creates a virtual circuit before transmitting between two end stations.
84:D2:43:B3
Segments - packets - frames - bits
CA:F5:83:EB
Transport

9. Ethernet is defined at these layers.
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport

10. Logical addressing is used at this layer.
10101100.00010000.00010100.00110111
The Data Link layer is responsible for the framing of data packets.
Network
00001010.00001011.00001100.01100011

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Switch or bridge
The Network layer provides routing through an internetwork and logical addressing.
Data - segment - packet - frame - bit
198.211.57.209

12. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7

13. What type of RJ45 UTP cable is used between switches?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.
Transport

14. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166
183/B7
To create more collision domains and to add more bandwidth for users.

15. 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?
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance
Data Link & Physical
Decrease the window size.

16. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.
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.

17. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Data Link
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
Network

18. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
183/B7
Hub
To create more collision domains and to add more bandwidth for users.

19. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub
RJ45 UTP crossover cable.

20. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Session layer sets up - maintains - and terminates sessions between applications.
Router
Data Link
00001010.00001011.00001100.01100011

21. Which of the following are 3 common types of flow control?
204.51.170.85
D8:1B:3D:76
Buffering - windowing - congestion avoidance
The Data Link layer is responsible for the framing of data packets.

22. This device uses hardware addresses to filter a network.
Router
Bridge or switch
198.211.57.209
Router

23. This layer supports flow control and sequencing.
Fiber-opticcable
RJ45 UTP crossover cable.
Transport
84:D2:43:B3

24. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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
Hub
3 - 2 - 1 - none
Fiber-opticcable

25. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
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.
Data Link

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

27. Which layer segments and reassembles data into a data stream?
Layer 4
204.51.170.85
Transport
The Transport layer segments user data.

28. This device sends and receives information about the Network layer.
Fiber-opticcable
Segments - packets - frames - bits
RJ45 UTP crossover cable.
Router

29. This device can never run full duplex.
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
Hub
The Data Link layer is responsible for the framing of data packets.

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.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
48 bits (6 bytes)

31. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)

32. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.
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.

33. What are two purposes for segmentation with a bridge?
Hub
Network
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit

34. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.

35. Name three types of connections that can use full duplex.
204.51.170.85
Buffering - windowing - congestion avoidance
Bridge or switch
Switch to switch - host to host - switch to host

36. Convert 10.11.12.99 to binary format.
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
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
00001010.00001011.00001100.01100011

37. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.

38. This device creates one big collision domain and one large broadcast domain.
Hub
CA:F5:83:EB
Network
The Data Link layer frames packets received from the Network layer.

39. 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.
Data Link
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router

40. Which layer is represented by segments?
Switch to switch - host to host - switch to host
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 Transport layer segments user data.
The Data Link layer is responsible for the framing of data packets.

41. 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 (LLC sublayer)
RJ45 UTP rolled cable.
The Network layer provides routing through an internetwork and logical addressing.
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.

42. When data is encapsulated - which is the correct order?
Data Link & Physical
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data - segment - packet - frame - bit

43. Which layer is represented by bits?
Transport
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch

44. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Network
84:D2:43:B3
Layer 4
Transport

45. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
10101100.00010000.00010100.00110111
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.

46. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP rolled cable.
Source and destination MAC address and FCS field

47. Why does the data communication industry use the layered OSI reference model? (Name two)
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
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 Network layer creates packets out of segments handed down from the Transport layer.

48. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
Transport
Data Link (LLC sublayer)
Switch or bridge

49. Convert 172.16.20.55 to binary format.
Data Link
Switch to switch - host to host - switch to host
10101100.00010000.00010100.00110111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Fiber-opticcable
Layer 4
The Network layer creates packets out of segments handed down from the Transport layer.
Router