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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 manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
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
RJ45 UTP crossover cable.
Data Link (LLC sublayer)

2. This device sends and receives information about the Network layer.
CA:F5:83:EB
204.51.170.85
Router
Hub and repeater

3. Convert 10.11.12.99 to binary format.
3 - 2 - 1 - none
00001010.00001011.00001100.01100011
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.

4. When data is encapsulated - which is the correct order?
Hub
Data - segment - packet - frame - bit
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

5. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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
3 - 2 - 1 - none
Segments - packets - frames - bits
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.

6. Name four router functions.
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
Router
132.210.184.166

7. This layer uses service access points.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

8. 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.
48 bits (6 bytes)
Router

9. Which layer is represented by frames?
Router
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.

10. 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).
To provide a means for the receiver to govern the amount of data sent by the sender.
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.
Buffering - windowing - congestion avoidance

11. Which layer is represented by segments?
The Data Link layer is responsible for the framing of data packets.
The Transport layer segments user data.
Data - segment - packet - frame - bit
Data Link

12. Which two fields are contained within an IEEE Ethernet frame header?
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 provides logical addressing - typically IP addressing and routing.
Source and destination MAC address and FCS field
198.211.57.209

13. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Layer 4
D8:1B:3D:76
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.

14. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Data - segment - packet - frame - bit
183/B7
3 - 2 - 1 - none

15. What are two purposes for segmentation with a bridge?
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.
To create more collision domains and to add more bandwidth for users.
Data Link & Physical
Layer 4

16. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
RJ45 UTP rolled cable.
Router
The Network layer provides routing through an internetwork and logical addressing.

17. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
To create more collision domains and to add more bandwidth for users.
The Presentation layer makes sure that data is in a readable format for the Application layer.

18. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Network layer provides routing through an internetwork and logical addressing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Layer 4

19. This device breaks up collision domains and broadcast domains.
Router
Segments - packets - frames - bits
Layer 4
Data Link & Physical

20. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4

21. Which layer provides logical addressing that routers will use for path determination?
84:D2:43:B3
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.
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.

22. This layer supports flow control and sequencing.
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
132.210.184.166
11000000.10101000.00001010.00001111

23. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
The Session layer creates sessions between different hosts' applications.
Router
Router

24. Which layer segments and reassembles data into a data stream?
Switch or bridge
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

25. Segmentation of a data stream happens at which layer of the OSI model?
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.
Segments - packets - frames - bits
Transport

26. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data - segment - packet - frame - bit
Data Link
Transport
The Session layer creates sessions between different hosts' applications.

27. This device uses hardware addresses to filter a network.
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.
Bridge or switch
132.210.184.166

28. Logical addressing is used at this layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer creates sessions between different hosts' applications.
Network
CA:F5:83:EB

29. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Decrease the window size.
00001010.00001011.00001100.01100011

30. This device can never run full duplex.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link & Physical
Data - segment - packet - frame - bit
Hub

31. This device creates one big collision domain and one large broadcast domain.
The Physical layer is responsible for the electrical and mechanical connections between devices.
To provide a means for the receiver to govern the amount of data sent by the sender.
84:D2:43:B3
Hub

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.

33. Which layer is represented by packets?
CA:F5:83:EB
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer creates packets out of segments handed down from the Transport layer.
Transport

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

35. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
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 sets up - maintains - and terminates sessions between applications.
Buffering - windowing - congestion avoidance

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater
Router
204.51.170.85

37. What type of RJ45 UTP cable is used between switches?
Router
The Transport layer segments user data.
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP crossover cable.

38. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
Router

39. At which layer is routing implemented - enabling connections and path selection between two end systems?
84:D2:43:B3
Bridge or switch
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.

40. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
84:D2:43:B3

41. This layer creates a virtual circuit before transmitting between two end stations.
Hub and repeater
Bridge or switch
Transport
132.210.184.166

42. 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?
Segments - packets - frames - bits
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer is responsible for the framing of data packets.

43. 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?
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.
Transport

44. 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.
CA:F5:83:EB
Transport
Transport

45. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for the electrical and mechanical connections between devices.

46. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Network
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.

47. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
84:D2:43:B3
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.

48. What is the bit length and expression form of a MAC address?
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
48 bits (6 bytes)
Bridge or switch

49. Which layer is represented by bits?
Transport
To create more collision domains and to add more bandwidth for users.
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

50. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
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 Transport layer segments user data.
D8:1B:3D:76