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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 is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Network
Layer 4

2. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
RJ45 UTP crossover cable.
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).
Buffering - windowing - congestion avoidance

3. 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?
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
CA:F5:83:EB
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

4. Which layer is represented by segments?
The Transport layer segments user data.
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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).

5. Which of the following are 3 common types of flow control?
Data - segment - packet - frame - bit
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field

6. This device creates many smaller collision domains - but the network is still one large broadcast domain.
D8:1B:3D:76
Switch to switch - host to host - switch to host
The Network layer provides routing through an internetwork and logical addressing.
Switch or bridge

7. Ethernet is defined at these layers.
183/B7
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none

8. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

9. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
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
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.

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

11. What are two purposes for segmentation with a bridge?
Bridge or switch
To create more collision domains and to add more bandwidth for users.
Network
Layer 4

12. Which layer provides logical addressing that routers will use for path determination?
Hub
Switch or bridge
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.

13. This device can measure the distance to a remote network.
48 bits (6 bytes)
D8:1B:3D:76
Router
Data - segment - packet - frame - bit

14. This device uses hardware addresses to filter a network.
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.

15. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
84:D2:43:B3
204.51.170.85
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.

16. 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?
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub

17. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Network layer provides routing through an internetwork and logical addressing.
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 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 Session layer creates sessions between different hosts' applications.

18. Convert 10.11.12.99 to binary format.
Router
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field
00001010.00001011.00001100.01100011

19. This device breaks up collision domains and broadcast domains.
Router
Transport
The Data Link layer frames packets received from the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

20. Which two fields are contained within an IEEE Ethernet frame header?
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer creates sessions between different hosts' applications.
Source and destination MAC address and FCS field

21. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

22. This device sends and receives information about the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

23. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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.
Router
Buffering - windowing - congestion avoidance
Layer 4

24. This layer uses service access points.
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.
00001010.00001011.00001100.01100011
Data Link (LLC sublayer)

25. What is the purpose of flow control?
183/B7
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 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.

26. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer frames packets received from the Network layer.

27. 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
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).
Buffering - windowing - congestion avoidance
Router

28. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch or bridge
132.210.184.166
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.

29. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Transport layer segments user data.
198.211.57.209
Data Link
Router

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

31. This device can never run full duplex.
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
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

32. Which layer is represented by frames?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Data Link layer frames packets received from the Network layer.
204.51.170.85

33. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
183/B7
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field

34. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
00001010.00001011.00001100.01100011
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

35. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
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 bits?
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7

37. This layer supports flow control and sequencing.
The Network layer provides routing through an internetwork and logical addressing.
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).
3 - 2 - 1 - none
Transport

38. Why does the data communication industry use the layered OSI reference model? (Name two)
D8:1B:3D:76
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
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

39. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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).
Data Link
132.210.184.166

40. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
D8:1B:3D:76
Network
RJ45 UTP rolled cable.

41. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.

42. Which layer is represented by packets?
132.210.184.166
Segments - packets - frames - bits
RJ45 UTP rolled cable.
The Network layer creates packets out of segments handed down from the Transport layer.

43. When data is encapsulated - which is the correct order?
10101100.00010000.00010100.00110111
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link & Physical
Data - segment - packet - frame - bit

44. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Hub
RJ45 UTP rolled cable.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7

45. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB
183/B7

46. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit

47. This layer creates a virtual circuit before transmitting between two end stations.
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.
198.211.57.209
Transport

48. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link & Physical
The Network layer creates packets out of segments handed down from the Transport layer.
Hub and repeater
RJ45 UTP rolled cable.

49. What type of RJ45 UTP cable is used between switches?
Segments - packets - frames - bits
Router
The Transport layer segments user data.
RJ45 UTP crossover cable.

50. 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?
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85
Decrease the window size.
The Transport layer user virtual circuits to create a reliable connection between two hosts.