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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. 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
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)

2. This device uses hardware addresses to filter a network.
Transport
Buffering - windowing - congestion avoidance
Bridge or switch
Hub

3. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Presentation layer makes sure that data is in a readable format for the Application 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).
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

4. What are two purposes for segmentation with a bridge?
10101100.00010000.00010100.00110111
Router
RJ45 UTP crossover cable.
To create more collision domains and to add more bandwidth for users.

5. Logical addressing is used at this layer.
Network
The Session layer sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance
Segments - packets - frames - bits

6. This device sends and receives information about the Network layer.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
84:D2:43:B3
RJ45 UTP crossover cable.

7. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.
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.

8. Which layer is represented by bits?
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.
Decrease the window size.

9. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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.
Router

10. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
183/B7
D8:1B:3D:76
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

11. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch to switch - host to host - switch to host
132.210.184.166
Hub and repeater
Switch or bridge

12. This device can measure the distance to a remote network.
Router
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 routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.

13. Ethernet is defined at these layers.
84:D2:43:B3
Fiber-opticcable
Data Link & Physical
198.211.57.209

14. This layer creates a virtual circuit before transmitting between two end stations.
Data Link
The Network layer provides routing through an internetwork and logical addressing.
Transport
198.211.57.209

15. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
The Transport layer segments user data.
132.210.184.166

16. What is the purpose of flow control?
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

17. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Fiber-opticcable
Network
132.210.184.166
11000000.10101000.00001010.00001111

18. When data is encapsulated - which is the correct order?
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data - segment - packet - frame - bit
3 - 2 - 1 - none

19. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
RJ45 UTP rolled cable.
D8:1B:3D:76
10101100.00010000.00010100.00110111
CA:F5:83:EB

20. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4
The Data Link layer is responsible for the framing of data packets.

21. What type of RJ45 UTP cable is used between switches?
132.210.184.166
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
Data Link (LLC sublayer)

22. Segmentation of a data stream happens at which layer of the OSI model?
84:D2:43:B3
Network
The Network layer creates packets out of segments handed down from the Transport layer.
Transport

23. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

24. 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.
RJ45 UTP rolled cable.
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
Transport

25. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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.
Data Link
198.211.57.209

26. 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?
Decrease the window size.
The Network layer provides logical addressing - typically IP addressing and routing.
Switch or bridge
Bridge or switch

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
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.
183/B7
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Layer 4
Data Link
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.
Transport

29. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
Source and destination MAC address and FCS field

30. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Transport
CA:F5:83:EB
3 - 2 - 1 - none
Fiber-opticcable

31. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Router
Bridge or switch
Router

32. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Transport
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub

33. This layer uses service access points.
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
Hub
Data Link (LLC sublayer)

34. This device creates one big collision domain and one large broadcast domain.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Hub
10101100.00010000.00010100.00110111

35. What is the bit length and expression form of a MAC address?
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none
48 bits (6 bytes)
Data Link & Physical

36. Which of the following are 3 common types of flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.
Buffering - windowing - congestion avoidance
Switch or bridge

37. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Router
204.51.170.85
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.

38. Which layer is represented by frames?
204.51.170.85
The Data Link layer frames packets received from the Network layer.
Transport
Data - segment - packet - frame - bit

39. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP rolled cable.

40. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
Data Link
Network
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.

41. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

42. 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
RJ45 UTP crossover cable.
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 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 Data Link layer frames packets received from the Network layer.

43. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer creates sessions between different hosts' applications.
CA:F5:83:EB
84:D2:43:B3

44. Convert 172.16.20.55 to binary format.
Fiber-opticcable
10101100.00010000.00010100.00110111
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

45. Name four router functions.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
Source and destination MAC address and FCS field
Packet switching - Packet filtering - Internetwork communication - Path selection

46. Which layer segments and reassembles data into a data stream?
Segments - packets - frames - bits
10101100.00010000.00010100.00110111
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.

47. Convert 10.11.12.99 to binary format.
Switch to switch - host to host - switch to host
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.

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

49. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
84:D2:43:B3
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111
Segments - packets - frames - bits

50. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Data Link layer frames packets received from the Network layer.
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.
Router