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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. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Transport
Data Link (LLC sublayer)
Network
D8:1B:3D:76

2. Which layer is responsible for creating - managing - and terminating sessions between applications?
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
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. What is the purpose of flow control?
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.

4. 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011
Hub

5. What type of RJ45 UTP cable is used between switches?
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 Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.

6. This device sends and receives information about the Network layer.
Data Link
Source and destination MAC address and FCS field
Router
The Session layer sets up - maintains - and terminates sessions between applications.

7. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.
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 provide a means for the receiver to govern the amount of data sent by the sender.

8. 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?
Data Link & Physical
RJ45 UTP rolled cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
48 bits (6 bytes)

9. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
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.
D8:1B:3D:76
3 - 2 - 1 - none

10. This layer uses service access points.
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)
00001010.00001011.00001100.01100011
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.

11. This device creates many smaller collision domains - but the network is still one large broadcast domain.
CA:F5:83:EB
Hub and repeater
Switch or bridge
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.

12. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
The Network layer provides logical addressing - typically IP addressing and routing.
Buffering - windowing - congestion avoidance

13. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
Transport
3 - 2 - 1 - none

14. Which layer is represented by packets?
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
RJ45 UTP rolled cable.

15. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Network
The Network layer provides logical addressing - typically IP addressing and routing.
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.

16. This device can measure the distance to a remote network.
Router
Source and destination MAC address and FCS field
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.

17. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
The Session layer creates sessions between different hosts' applications.
RJ45 UTP rolled cable.
CA:F5:83:EB

18. This layer supports flow control and sequencing.
To create more collision domains and to add more bandwidth for users.
Transport
Hub and repeater
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.

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

20. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Buffering - windowing - congestion avoidance
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
Hub and repeater
Source and destination MAC address and FCS field

21. Which layer segments and reassembles data into a data stream?
Router
Transport
204.51.170.85
Hub

22. Which of the following are 3 common types of flow control?
Bridge or switch
Switch or bridge
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance

23. This device uses hardware addresses to filter a network.
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.
Hub
Switch to switch - host to host - switch to host

24. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Layer 4
The Session layer sets up - maintains - and terminates sessions between applications.
204.51.170.85
Transport

25. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
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 Network layer provides logical addressing - typically IP addressing and routing.
The Network layer provides routing through an internetwork and logical addressing.

26. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
3 - 2 - 1 - none
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 provides logical addressing - typically IP addressing and routing.
Data Link

27. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Fiber-opticcable
3 - 2 - 1 - none
Router

28. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
RJ45 UTP rolled cable.
D8:1B:3D:76
Segments - packets - frames - bits
Data - segment - packet - frame - bit

29. Logical addressing is used at this layer.
Network
Source and destination MAC address and FCS field
132.210.184.166
The Network layer provides logical addressing - typically IP addressing and routing.

30. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Hub and repeater
3 - 2 - 1 - none
183/B7
Segments - packets - frames - bits

31. Why does the data communication industry use the layered OSI reference model? (Name two)
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
The Network layer provides routing through an internetwork and logical addressing.
Transport

32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
183/B7
The Network layer creates packets out of segments handed down from the Transport layer.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB

33. Which two fields are contained within an IEEE Ethernet frame header?
Bridge or switch
Source and destination MAC address and FCS field
Segments - packets - frames - bits
Transport

34. 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?
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network
Switch to switch - host to host - switch to host

35. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
Data - segment - packet - frame - bit
204.51.170.85

36. 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?
RJ45 UTP crossover cable.
Source and destination MAC address and FCS field
Decrease the window size.
The Transport layer segments user data.

37. Name three types of connections that can use full duplex.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111

38. Segmentation of a data stream happens at which layer of the OSI model?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
CA:F5:83:EB
Data - segment - packet - frame - bit

39. This device can never run full duplex.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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
The Physical layer is responsible for the electrical and mechanical connections between devices.

40. Ethernet is defined at these layers.
The Network layer provides logical addressing - typically IP addressing and routing.
Data Link & Physical
00001010.00001011.00001100.01100011
To create more collision domains and to add more bandwidth for users.

41. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Router
132.210.184.166
Hub

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

43. This device creates one big collision domain and one large broadcast domain.
48 bits (6 bytes)
Hub
Bridge or switch
Hub and repeater

44. Which layer is represented by segments?
The Transport layer segments user data.
198.211.57.209
Segments - packets - frames - bits
11000000.10101000.00001010.00001111

45. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Switch or bridge

46. Convert 192.168.10.15 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111

47. 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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166
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).

48. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer creates packets out of segments handed down from the Transport layer.
D8:1B:3D:76

49. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Data - segment - packet - frame - bit
Router
Transport

50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
183/B7
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer is responsible for the framing of data packets.