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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 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
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
The Session layer sets up - maintains - and terminates sessions between applications.
Router

2. What are two purposes for segmentation with a bridge?
Buffering - windowing - congestion avoidance
Network
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.

3. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
10101100.00010000.00010100.00110111
Switch to switch - host to host - switch to host

4. Which layer is represented by bits?
Hub
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 transporting 1s and 0s in a digital signal.
Router

5. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
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

6. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
The Network layer provides logical addressing - typically IP addressing and routing.
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).

7. This device creates one big collision domain and one large broadcast domain.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
84:D2:43:B3
Data Link
00001010.00001011.00001100.01100011

9. What type of RJ45 UTP cable is used between switches?
Hub
RJ45 UTP crossover cable.
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.

10. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Buffering - windowing - congestion avoidance
The Network layer creates packets out of segments handed down from the Transport layer.
198.211.57.209
132.210.184.166

11. This device can measure the distance to a remote network.
Decrease the window size.
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).
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

12. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Segments - packets - frames - bits

13. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Data Link (LLC sublayer)
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
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.

14. Which layer provides logical addressing that routers will use for path determination?
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.
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).

15. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
Hub
CA:F5:83:EB

16. 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?
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable

17. Convert 10.11.12.99 to binary format.
CA:F5:83:EB
00001010.00001011.00001100.01100011
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.

18. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
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
The Data Link layer is responsible for the framing of data packets.

19. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
00001010.00001011.00001100.01100011
Router
The Data Link layer is responsible for the framing of data packets.
Decrease the window size.

20. Logical addressing is used at this layer.
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
Network

21. Which layer is represented by segments?
132.210.184.166
The Transport layer segments user data.
Network
The Network layer provides routing through an internetwork and logical addressing.

22. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4

23. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Data Link layer is responsible for the framing of data packets.
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

24. Ethernet is defined at these layers.
48 bits (6 bytes)
Data Link & Physical
11000000.10101000.00001010.00001111
Data Link

25. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data Link (LLC sublayer)
132.210.184.166
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.

26. At which layer is routing implemented - enabling connections and path selection between two end systems?
RJ45 UTP crossover cable.
Bridge or switch
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.

27. This layer supports flow control and sequencing.
D8:1B:3D:76
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.
Hub

28. 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.
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

29. What is the bit length and expression form of a MAC address?
Layer 4
48 bits (6 bytes)
Data Link
The Physical layer is responsible for the electrical and mechanical connections between devices.

30. When data is encapsulated - which is the correct order?
183/B7
Data - segment - packet - frame - bit
Router
Source and destination MAC address and FCS field

31. 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.
204.51.170.85
Data - segment - packet - frame - bit
Switch or bridge

32. Which of the following are 3 common types of flow control?
Data Link
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

33. Which layer is represented by frames?
Data Link (LLC sublayer)
The Data Link layer frames packets received from the Network layer.
Decrease the window size.
Fiber-opticcable

34. This layer uses service access points.
Data Link (LLC sublayer)
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

35. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
3 - 2 - 1 - none
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.

36. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
183/B7
D8:1B:3D:76
Transport
The Network layer provides routing through an internetwork and logical addressing.

37. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Hub
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

38. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
204.51.170.85
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

39. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection
183/B7
Hub

40. This device breaks up collision domains and broadcast domains.
To create more collision domains and to add more bandwidth for users.
RJ45 UTP rolled cable.
Router
Layer 4

41. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
198.211.57.209
Transport
Fiber-opticcable

42. Segmentation of a data stream happens at which layer of the OSI model?
Switch or bridge
Hub
Transport
183/B7

43. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable
3 - 2 - 1 - none

44. This device sends and receives information about the Network layer.
Router
Data Link (LLC sublayer)
204.51.170.85
Network

45. This device can never run full duplex.
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub
183/B7

46. Name three types of connections that can use full duplex.
Segments - packets - frames - bits
3 - 2 - 1 - none
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.

47. This layer creates a virtual circuit before transmitting between two end stations.
Transport
The Network layer provides routing through an internetwork and logical addressing.
198.211.57.209
183/B7

48. 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.
Layer 4
The Data Link layer frames packets received from the Network layer.
Data Link

49. Which layer is represented by packets?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.
The Network layer creates packets out of segments handed down from the Transport layer.

50. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer provides routing through an internetwork and logical addressing.
The Session layer sets up - maintains - and terminates sessions between applications.
Segments - packets - frames - bits
132.210.184.166