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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. Which layer segments and reassembles data into a data stream?
Network
132.210.184.166
Transport
Bridge or switch

2. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater

3. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.
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.

4. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Network layer provides routing through an internetwork and logical addressing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.

5. When data is encapsulated - which is the correct order?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch
The Transport layer segments user data.
Data - segment - packet - frame - bit

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Segments - packets - frames - bits
D8:1B:3D:76
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.

7. This device sends and receives information about the Network layer.
Hub
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer is responsible for the framing of data packets.

8. 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.
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

9. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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.
The Network layer provides logical addressing - typically IP addressing and routing.
3 - 2 - 1 - none

10. Which layer is represented by packets?
Data Link
11000000.10101000.00001010.00001111
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

11. This layer creates a virtual circuit before transmitting between two end stations.
84:D2:43:B3
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To provide a means for the receiver to govern the amount of data sent by the sender.

12. 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.
10101100.00010000.00010100.00110111
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.
198.211.57.209

13. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
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.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub

14. 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?
84:D2:43:B3
Data Link
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

15. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To provide a means for the receiver to govern the amount of data sent by the sender.

16. This device can never run full duplex.
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
Buffering - windowing - congestion avoidance
Switch or bridge
Hub

17. This device can measure the distance to a remote network.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011
Router
Data - segment - packet - frame - bit

18. Which layer is represented by frames?
Decrease the window size.
Transport
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

19. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

20. 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?
10101100.00010000.00010100.00110111
Hub
Decrease the window size.
Router

21. 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.
Data Link & Physical
Transport
Bridge or switch

22. Which layer provides logical addressing that routers will use for path determination?
84:D2:43:B3
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router

23. Convert 172.16.20.55 to binary format.
The Network layer provides routing through an internetwork and logical addressing.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
132.210.184.166

24. Which layer is represented by 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.
183/B7
The Transport layer segments user data.
198.211.57.209

25. This layer uses service access points.
3 - 2 - 1 - none
Router
Data Link (LLC sublayer)
204.51.170.85

26. 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
RJ45 UTP crossover cable.
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.

27. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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 Physical layer is responsible for the electrical and mechanical connections between devices.
Network

28. Name three types of connections that can use full duplex.
CA:F5:83:EB
132.210.184.166
Switch to switch - host to host - switch to host
84:D2:43:B3

29. 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.
Network
198.211.57.209
204.51.170.85

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

31. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Switch or bridge
Data Link
Hub and repeater

32. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
RJ45 UTP rolled cable.
3 - 2 - 1 - none
Data Link

33. Name four router functions.
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
48 bits (6 bytes)
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.
Packet switching - Packet filtering - Internetwork communication - Path selection

34. This device uses hardware addresses to filter a network.
Bridge or switch
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

35. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link (LLC sublayer)
Router
Data - segment - packet - frame - bit
Data Link

36. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.

37. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
D8:1B:3D:76
Router
Transport

38. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

39. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
183/B7

40. This device breaks up collision domains and broadcast domains.
Router
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).
Network
Decrease the window size.

41. What type of RJ45 UTP cable is used between switches?
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.
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.

42. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Buffering - windowing - congestion avoidance
The Transport layer user virtual circuits to create a reliable connection between two hosts.
198.211.57.209
RJ45 UTP rolled cable.

43. Logical addressing is used at this layer.
The Network layer provides logical addressing - typically IP addressing and routing.
Network
D8:1B:3D:76
84:D2:43:B3

44. Convert 192.168.10.15 to binary format.
RJ45 UTP rolled cable.
198.211.57.209
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111

45. This device creates one big collision domain and one large broadcast domain.
Transport
Hub
Data Link & Physical
The Data Link layer frames packets received from the Network layer.

46. Which two fields are contained within an IEEE Ethernet frame header?
D8:1B:3D:76
Source and destination MAC address and FCS field
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

47. Segmentation of a data stream happens at which layer of the OSI model?
Network
204.51.170.85
Transport
Data Link (LLC sublayer)

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

49. Convert 10.11.12.99 to binary format.
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
00001010.00001011.00001100.01100011

50. This layer supports flow control and sequencing.
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
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.