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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 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.
Segments - packets - frames - bits
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

2. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
198.211.57.209
Hub

3. Which layer is represented by bits?
Packet switching - Packet filtering - Internetwork communication - Path selection
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).
48 bits (6 bytes)

4. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Segments - packets - frames - bits
The Transport layer segments user data.
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

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Buffering - windowing - congestion avoidance
D8:1B:3D:76
Hub
Fiber-opticcable

6. Which layer segments and reassembles data into a data stream?
Transport
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
Data Link (LLC sublayer)

7. 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 Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)
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).
204.51.170.85

8. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
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
11000000.10101000.00001010.00001111

9. This layer creates a virtual circuit before transmitting between two end stations.
The Data Link layer frames packets received from the Network layer.
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.

10. 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?
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.
Decrease the window size.

11. What type of RJ45 UTP cable is used between switches?
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
204.51.170.85
RJ45 UTP crossover cable.
CA:F5:83:EB

12. Convert 10.11.12.99 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111

13. This layer uses service access points.
RJ45 UTP crossover cable.
Data Link (LLC sublayer)
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

14. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer sets up - maintains - and terminates sessions between applications.
Switch or bridge
D8:1B:3D:76
Hub and repeater

15. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
Data Link

16. Which layer provides logical addressing that routers will use for path determination?
The Transport layer segments user data.
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 Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides logical addressing - typically IP addressing and routing.

17. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Hub and repeater
Transport
Layer 4
The Data Link layer frames packets received from the Network layer.

18. Which of the following are 3 common types of flow control?
Hub
Buffering - windowing - congestion avoidance
183/B7
198.211.57.209

19. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
00001010.00001011.00001100.01100011
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.

20. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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 Session layer creates sessions between different hosts' applications.
Router
The Data Link layer is responsible for the framing of data packets.

21. This layer supports flow control and sequencing.
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.
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.

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

23. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)
CA:F5:83:EB
The Network layer provides logical addressing - typically IP addressing and routing.

24. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
D8:1B:3D:76
RJ45 UTP crossover cable.
Data Link (LLC sublayer)

25. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
Router
Hub and repeater

26. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
D8:1B:3D:76
RJ45 UTP rolled cable.
183/B7
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

27. Which layer is responsible for creating - managing - and terminating sessions between applications?
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP crossover cable.

28. Logical addressing is used at this layer.
Network
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.
Router

29. This device can never run full duplex.
Router
Hub
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.

30. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.
Router
3 - 2 - 1 - none

31. What is the bit length and expression form of a MAC address?
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.
48 bits (6 bytes)
132.210.184.166

32. Segmentation of a data stream happens at which layer of the OSI model?
Transport
3 - 2 - 1 - none
Source and destination MAC address and FCS field
D8:1B:3D:76

33. Which layer is represented by segments?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link (LLC sublayer)

34. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.
Bridge or switch

35. This device sends and receives information about the Network layer.
204.51.170.85
CA:F5:83:EB
Router
Data Link

36. Which two fields are contained within an IEEE Ethernet frame header?
The Session layer creates sessions between different hosts' applications.
Transport
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.

37. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
204.51.170.85
Buffering - windowing - congestion avoidance
Layer 4

38. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Transport
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.

39. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Router
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.

40. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
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 Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection

41. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Hub
3 - 2 - 1 - none
Switch or bridge

42. Name three types of connections that can use full duplex.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
Transport
Switch to switch - host to host - switch to host

43. This device uses hardware addresses to filter a network.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch
183/B7
Switch to switch - host to host - switch to host

44. Ethernet is defined at these layers.
Data Link & Physical
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.
Decrease the window size.

45. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Switch to switch - host to host - switch to host
204.51.170.85
To create more collision domains and to add more bandwidth for users.
Decrease the window size.

46. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Data Link (LLC sublayer)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch
Fiber-opticcable

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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
198.211.57.209
Data Link
84:D2:43:B3

48. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Session layer creates sessions between different hosts' applications.
RJ45 UTP crossover cable.
183/B7
Router

49. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
To provide a means for the receiver to govern the amount of data sent by the sender.
Layer 4
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 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.

50. 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
Bridge or switch
Router