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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. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Data Link layer frames packets received from the Network layer.
Transport
Layer 4
Source and destination MAC address and FCS field

2. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
Fiber-opticcable
Transport

3. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

4. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data Link (LLC sublayer)
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

5. This device can measure the distance to a remote network.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Data Link
Router

6. Name three types of connections that can use full duplex.
The Network layer provides routing through an internetwork and logical addressing.
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub and repeater

7. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
D8:1B:3D:76
Decrease the window size.
Data Link
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).

8. Convert 172.16.20.55 to binary format.
Hub and repeater
The Session layer creates sessions between different hosts' applications.
Buffering - windowing - congestion avoidance
10101100.00010000.00010100.00110111

9. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Network
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

10. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer frames packets received from the Network layer.
The Network layer provides logical addressing - typically IP addressing and routing.

11. This layer uses service access points.
Data Link (LLC sublayer)
RJ45 UTP rolled cable.
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection

12. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Switch or bridge
The Physical layer is responsible for the electrical and mechanical connections between devices.
Buffering - windowing - congestion avoidance

13. Which layer provides logical addressing that routers will use for path determination?
48 bits (6 bytes)
The Network layer provides logical addressing - typically IP addressing and routing.
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 is responsible for transporting 1s and 0s in a digital signal.

14. This device breaks up collision domains and broadcast domains.
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011
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.

15. What is the bit length and expression form of a MAC address?
Switch to switch - host to host - switch to host
48 bits (6 bytes)
Data - segment - packet - frame - bit
The Transport layer user virtual circuits to create a reliable connection between two hosts.

16. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
Data - segment - packet - frame - bit
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111

17. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
RJ45 UTP rolled cable.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

18. Which layer is represented by bits?
183/B7
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch or bridge

19. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Network
Switch or bridge
84:D2:43:B3
Buffering - windowing - congestion avoidance

20. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
Transport
Source and destination MAC address and FCS field

21. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
The Data Link layer is responsible for the framing of data packets.
Hub
The Network layer creates packets out of segments handed down from the Transport layer.

22. 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?
Layer 4
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

23. What is the purpose of flow control?
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none
Segments - packets - frames - bits

24. Which layer is represented by packets?
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111

25. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Fiber-opticcable
Data Link
Bridge or switch
RJ45 UTP rolled cable.

26. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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.
Network
84:D2:43:B3
183/B7

27. This device uses hardware addresses to filter a network.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link & Physical
Bridge or switch
Transport

28. 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.
84:D2:43:B3
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

29. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
RJ45 UTP rolled cable.

30. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data Link
Source and destination MAC address and FCS field
The Session layer sets up - maintains - and terminates sessions between applications.
Router

31. This device sends and receives information about the Network layer.
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Transport

32. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Layer 4
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Segments - packets - frames - bits

33. Which layer segments and reassembles data into a data stream?
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

34. 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
CA:F5:83:EB
3 - 2 - 1 - none
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).
10101100.00010000.00010100.00110111

35. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
Network
48 bits (6 bytes)

36. Why does the data communication industry use the layered OSI reference model? (Name two)
Data Link & Physical
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.
Buffering - windowing - congestion avoidance
Router

37. Logical addressing is used at this layer.
The Network layer provides logical addressing - typically IP addressing and routing.
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
Fiber-opticcable
Network

38. What type of RJ45 UTP cable is used between switches?
Transport
Transport
RJ45 UTP crossover cable.
Transport

39. This device creates one big collision domain and one large broadcast domain.
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7
The Network layer provides logical addressing - typically IP addressing and routing.

40. Which layer is represented by frames?
Data Link & Physical
The Data Link layer frames packets received from the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
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.

41. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Hub and repeater
Data Link (LLC sublayer)
D8:1B:3D:76
Layer 4

42. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
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
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).

43. 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.
48 bits (6 bytes)
198.211.57.209
RJ45 UTP rolled cable.

44. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Router
Hub and repeater
48 bits (6 bytes)
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.

45. This layer creates a virtual circuit before transmitting between two end stations.
Data Link
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
Data Link (LLC sublayer)

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

47. 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.
Layer 4
48 bits (6 bytes)
00001010.00001011.00001100.01100011

48. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB
Source and destination MAC address and FCS field
Decrease the window size.

49. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
The Data Link layer frames packets received from the Network layer.
Fiber-opticcable
Transport

50. Which two fields are contained within an IEEE Ethernet frame header?
Data - segment - packet - frame - bit
Layer 4
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field