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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 manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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
Network
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP crossover cable.

2. At which layer is routing implemented - enabling connections and path selection between two end systems?
Bridge or switch
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209

3. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Transport
Hub and repeater
11000000.10101000.00001010.00001111

4. This layer creates a virtual circuit before transmitting between two end stations.
Decrease the window size.
The Session layer sets up - maintains - and terminates sessions between applications.
To create more collision domains and to add more bandwidth for users.
Transport

5. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Segments - packets - frames - bits
Layer 4
198.211.57.209
204.51.170.85

6. 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
Fiber-opticcable
Data Link (LLC sublayer)
Network

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
10101100.00010000.00010100.00110111
Router
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

8. 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?
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.
The Data Link layer frames packets received from the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

9. 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.
RJ45 UTP crossover cable.
Data Link & Physical
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

10. This device can never run full duplex.
Hub
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.
11000000.10101000.00001010.00001111

11. This device sends and receives information about the Network layer.
Segments - packets - frames - bits
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.
Router

12. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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).
183/B7

13. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
RJ45 UTP crossover cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7

14. What is the bit length and expression form of a MAC address?
Layer 4
48 bits (6 bytes)
3 - 2 - 1 - none
84:D2:43:B3

15. Name four router functions.
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111
Hub

16. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Router
Data Link (LLC sublayer)
Data - segment - packet - frame - bit

17. This device can measure the distance to a remote network.
To create more collision domains and to add more bandwidth for users.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer frames packets received from the Network layer.

18. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link (LLC sublayer)
Data Link
The Transport layer segments user data.
The Data Link layer is responsible for the framing of data packets.

19. Name three types of connections that can use full duplex.
RJ45 UTP crossover cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host

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

21. This layer supports flow control and sequencing.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111

22. Which layer is represented by segments?
10101100.00010000.00010100.00110111
48 bits (6 bytes)
84:D2:43:B3
The Transport layer segments user data.

23. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
The Network layer creates packets out of segments handed down from the Transport layer.
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data - segment - packet - frame - bit

24. This device creates one big collision domain and one large broadcast domain.
00001010.00001011.00001100.01100011
Hub and repeater
Hub
Data - segment - packet - frame - bit

25. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Switch or bridge
Source and destination MAC address and FCS field
3 - 2 - 1 - none
Decrease the window size.

26. 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?
To provide a means for the receiver to govern the amount of data sent by the sender.
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 creates packets out of segments handed down from the Transport layer.
Layer 4

27. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
Router

28. This device creates many smaller collision domains - but the network is still one large broadcast domain.
11000000.10101000.00001010.00001111
Switch or bridge
Layer 4
Hub

29. Logical addressing is used at this layer.
To create more collision domains and to add more bandwidth for users.
Decrease the window size.
132.210.184.166
Network

30. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
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.
48 bits (6 bytes)
Network

31. Ethernet is defined at these layers.
Router
Switch or bridge
The Session layer creates sessions between different hosts' applications.
Data Link & Physical

32. This device breaks up collision domains and broadcast domains.
11000000.10101000.00001010.00001111
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.

33. What are two purposes for segmentation with a bridge?
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance
CA:F5:83:EB

34. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)

35. Which two fields are contained within an IEEE Ethernet frame header?
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.
Source and destination MAC address and FCS field
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

36. Which layer is represented by frames?
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.
Hub
The Data Link layer frames packets received from the Network layer.

37. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Decrease the window size.
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
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.

38. Segmentation of a data stream happens at which layer of the OSI model?
CA:F5:83:EB
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.
Transport

39. 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
Segments - packets - frames - bits
Transport
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).
Router

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

41. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
183/B7
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3

42. Convert 10.11.12.99 to binary format.
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer creates sessions between different hosts' applications.
00001010.00001011.00001100.01100011
The Presentation layer makes sure that data is in a readable format for the Application layer.

43. 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?
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.
183/B7
Hub and repeater

44. What is the purpose of flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
Switch to switch - host to host - switch to host
To provide a means for the receiver to govern the amount of data sent by the sender.

45. 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.
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.
Segments - packets - frames - bits

46. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
48 bits (6 bytes)
Transport
3 - 2 - 1 - none
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.

47. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
10101100.00010000.00010100.00110111
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.
The Session layer creates sessions between different hosts' applications.

48. Which layer segments and reassembles data into a data stream?
Segments - packets - frames - bits
Transport
Router
Packet switching - Packet filtering - Internetwork communication - Path selection

49. This layer uses service access points.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
Router
Router

50. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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.
Hub and repeater
132.210.184.166