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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 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 is responsible for the framing of data packets.
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).
Transport

2. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater
Network
The Session layer creates sessions between different hosts' applications.

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
Transport
Data Link
Hub

4. Segmentation of a data stream happens at which layer of the OSI model?
Transport
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
To provide a means for the receiver to govern the amount of data sent by the sender.

5. What is the purpose of flow control?
The Physical layer is responsible for the electrical and mechanical connections between devices.
198.211.57.209
Switch or bridge
To provide a means for the receiver to govern the amount of data sent by the sender.

6. Which layer provides logical addressing that routers will use for path determination?
Hub
Router
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).

7. Which layer segments and reassembles data into a data stream?
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
Transport
The Data Link layer frames packets received from the Network layer.

8. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76

9. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
84:D2:43:B3
Segments - packets - frames - bits
204.51.170.85
00001010.00001011.00001100.01100011

10. 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
Router
Network
132.210.184.166

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link
198.211.57.209
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

12. Which layer is represented by frames?
Segments - packets - frames - bits
The Data Link layer frames packets received from the Network 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.
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

13. Ethernet is defined at these layers.
Data Link & Physical
3 - 2 - 1 - none
Switch or bridge
Segments - packets - frames - bits

14. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
3 - 2 - 1 - none
Network

15. What type of RJ45 UTP cable is used between switches?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer creates sessions between different hosts' applications.
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.

16. Which layer is represented by segments?
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
The Transport layer segments user data.
Router

17. Which two fields are contained within an IEEE Ethernet frame header?
Bridge or switch
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host

18. 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?
Layer 4
Transport
Decrease the window size.
CA:F5:83:EB

19. Convert 10.11.12.99 to binary format.
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
48 bits (6 bytes)

20. Logical addressing is used at this layer.
Buffering - windowing - congestion avoidance
Network
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011

21. 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.
183/B7
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data - segment - packet - frame - bit

22. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
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).
Bridge or switch
183/B7
Router

23. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Switch to switch - host to host - switch to host
RJ45 UTP crossover cable.
Layer 4
To provide a means for the receiver to govern the amount of data sent by the sender.

24. What is the bit length and expression form of a MAC address?
204.51.170.85
Switch to switch - host to host - switch to host
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.

25. 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?
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
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 user virtual circuits to create a reliable connection between two hosts.

26. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub
Network

27. Convert 192.168.10.15 to binary format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111

28. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch
Hub and repeater
Transport

29. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
204.51.170.85
Network

30. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
CA:F5:83:EB
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).

31. Why does the data communication industry use the layered OSI reference model? (Name two)
10101100.00010000.00010100.00110111
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.
3 - 2 - 1 - none
Fiber-opticcable

32. 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 Presentation layer makes sure that data is in a readable format for the Application layer.
The Session layer sets up - maintains - and terminates sessions between applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

33. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Source and destination MAC address and FCS field
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 the electrical and mechanical connections between devices.
Segments - packets - frames - bits

34. This layer supports flow control and sequencing.
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 Network layer creates packets out of segments handed down from the Transport layer.
Network
Transport

35. This device uses hardware addresses to filter a network.
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Transport
Bridge or switch

36. Convert 172.16.20.55 to binary format.
Router
10101100.00010000.00010100.00110111
CA:F5:83:EB
The Network layer provides logical addressing - typically IP addressing and routing.

37. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.
Switch or bridge

38. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
RJ45 UTP crossover cable.
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits

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

40. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
183/B7
132.210.184.166
Data Link & Physical
Transport

41. Name three types of connections that can use full duplex.
Transport
183/B7
Switch to switch - host to host - switch to host
The Session layer creates sessions between different hosts' applications.

42. This device creates one big collision domain and one large broadcast domain.
The Session layer creates sessions between different hosts' applications.
48 bits (6 bytes)
Hub
Transport

43. This device can never run full duplex.
Data Link
Hub
D8:1B:3D:76
204.51.170.85

44. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Physical layer is responsible for the electrical and mechanical connections between devices.
3 - 2 - 1 - none
Fiber-opticcable
Transport

45. Which layer is represented by packets?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.

46. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
204.51.170.85
CA:F5:83:EB
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection

47. Which of the following are 3 common types of flow control?
Packet switching - Packet filtering - Internetwork communication - Path selection
11000000.10101000.00001010.00001111
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance

48. This layer uses service access points.
198.211.57.209
183/B7
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
Data Link (LLC sublayer)

49. This device sends and receives information about the Network layer.
The Data Link layer is responsible for the framing of data packets.
Segments - packets - frames - bits
Router
Data Link

50. When data is encapsulated - which is the correct order?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data - segment - packet - frame - bit
Decrease the window size.
Switch or bridge