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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 1 devices can be used to enlarge the area covered by a single LAN segment?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
Data Link (LLC sublayer)
Hub and repeater

2. Logical addressing is used at this layer.
Data Link
3 - 2 - 1 - none
Transport
Network

3. 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
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).
RJ45 UTP rolled cable.

4. This device can never run full duplex.
Switch to switch - host to host - switch to host
Hub
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.

5. What is the bit length and expression form of a MAC address?
84:D2:43:B3
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
48 bits (6 bytes)
CA:F5:83:EB

6. Name three types of connections that can use full duplex.
Decrease the window size.
Network
Switch to switch - host to host - switch to host
132.210.184.166

7. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
Hub
The Network layer provides logical addressing - typically IP addressing and routing.
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).

8. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)

9. Name four router functions.
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP crossover cable.
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

10. This layer uses service access points.
Data Link (LLC sublayer)
204.51.170.85
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit

11. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for the electrical and mechanical connections between devices.
48 bits (6 bytes)

12. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
00001010.00001011.00001100.01100011
Network
Decrease the window size.
D8:1B:3D:76

13. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Transport
Network

14. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.
The Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85

15. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
D8:1B:3D:76
10101100.00010000.00010100.00110111
Router

16. Which layer is represented by segments?
The Transport layer segments user data.
132.210.184.166
Decrease the window size.
CA:F5:83:EB

17. Which two fields are contained within an IEEE Ethernet frame header?
D8:1B:3D:76
Fiber-opticcable
Source and destination MAC address and FCS field
The Transport layer segments user data.

18. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB

19. Which layer is represented by frames?
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.
Transport
Router

20. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Segments - packets - frames - bits
The Network layer creates packets out of segments handed down from the Transport layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
CA:F5:83:EB
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

22. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Source and destination MAC address and FCS field
Data Link
To create more collision domains and to add more bandwidth for users.
204.51.170.85

23. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Data Link (LLC sublayer)
183/B7
Switch to switch - host to host - switch to host
Hub

24. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
D8:1B:3D:76
Hub
The Data Link layer frames packets received from the Network layer.
3 - 2 - 1 - none

25. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data Link (LLC sublayer)
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
The Data Link layer frames packets received from the Network layer.

26. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater

27. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
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
Router

28. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
48 bits (6 bytes)
The Transport layer segments user data.
Hub
CA:F5:83:EB

29. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
3 - 2 - 1 - none
Hub
Data Link
48 bits (6 bytes)

30. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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).
198.211.57.209
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field

31. Ethernet is defined at these layers.
Router
CA:F5:83:EB
Data Link & Physical
198.211.57.209

32. What type of RJ45 UTP cable is used between switches?
132.210.184.166
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP crossover cable.

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field
Switch or bridge

34. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Layer 4
D8:1B:3D:76
CA:F5:83:EB
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.

35. What is the purpose of flow control?
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 logical addressing - typically IP addressing and routing.
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.

36. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
Switch to switch - host to host - switch to host
Switch or bridge

37. At which layer is routing implemented - enabling connections and path selection between two end systems?
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable

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

39. This device breaks up collision domains and broadcast domains.
Router
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
Network

40. This device uses hardware addresses to filter a network.
Bridge or switch
00001010.00001011.00001100.01100011
Network
Hub

41. This device sends and receives information about the Network layer.
84:D2:43:B3
Router
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

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
11000000.10101000.00001010.00001111
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).
Router

43. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
84:D2:43:B3
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

44. 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.
Hub
D8:1B:3D:76
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

45. 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?
Layer 4
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
Hub and repeater

46. This device can measure the distance to a remote network.
Router
48 bits (6 bytes)
Switch to switch - host to host - switch to host
Bridge or switch

47. Convert 172.16.20.55 to binary format.
Switch or bridge
3 - 2 - 1 - none
The Network layer provides routing through an internetwork and logical addressing.
10101100.00010000.00010100.00110111

48. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
CA:F5:83:EB
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

49. Which layer segments and reassembles data into a data stream?
The Data Link layer frames packets received from the Network layer.
Data Link & Physical
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

50. This layer creates a virtual circuit before transmitting between two end stations.
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
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.
Hub