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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 11001100.00110011.10101010.01010101 to decimal IP format.
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.
11000000.10101000.00001010.00001111
204.51.170.85
Router

2. Which layer segments and reassembles data into a data stream?
Data Link & Physical
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
Switch to switch - host to host - switch to host

3. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
48 bits (6 bytes)
Hub
Source and destination MAC address and FCS field

4. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
CA:F5:83:EB
Transport

5. Ethernet is defined at these layers.
Data Link & Physical
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).
204.51.170.85
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

6. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link & Physical
Network
183/B7

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub
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 Session layer sets up - maintains - and terminates sessions between applications.
48 bits (6 bytes)

8. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable

9. This device can never run full duplex.
Hub
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 routing through an internetwork and logical addressing.
00001010.00001011.00001100.01100011

10. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Data Link layer frames packets received from the Network layer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.

11. What is the bit length and expression form of a MAC address?
Bridge or switch
Transport
48 bits (6 bytes)
11000000.10101000.00001010.00001111

12. This layer supports flow control and sequencing.
Data Link & Physical
Router
Transport
The Data Link layer is responsible for the framing of data packets.

13. Which layer is represented by segments?
The Network layer creates packets out of segments handed down from the Transport layer.
The Transport layer segments user data.
RJ45 UTP crossover cable.
Data Link (LLC sublayer)

14. This layer uses service access points.
Hub
183/B7
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.

15. When data is encapsulated - which is the correct order?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none
Data - segment - packet - frame - bit
Decrease the window size.

16. Convert 172.16.20.55 to binary format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.
10101100.00010000.00010100.00110111

17. Which of the following are 3 common types of flow control?
84:D2:43:B3
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.
Data - segment - packet - frame - bit

18. Which layer is represented by frames?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer frames packets received from the Network layer.
Decrease the window size.

19. Name four router functions.
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
The Session layer creates sessions between different hosts' applications.

20. 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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4
Transport

21. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Data - segment - packet - frame - bit
Transport
D8:1B:3D:76
Buffering - windowing - congestion avoidance

22. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link (LLC sublayer)
198.211.57.209
Switch to switch - host to host - switch to host
Data Link

23. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub and repeater
Layer 4
183/B7

24. This device can measure the distance to a remote network.
Buffering - windowing - congestion avoidance
The Data Link layer frames packets received from the Network layer.
Transport
Router

25. This device breaks up collision domains and broadcast domains.
Router
RJ45 UTP crossover cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

26. 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.
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable

27. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
204.51.170.85
Buffering - windowing - congestion avoidance
Router
183/B7

28. 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?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Session layer creates sessions between different hosts' applications.
Decrease the window size.
The Presentation layer makes sure that data is in a readable format for the Application layer.

29. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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).
Data - segment - packet - frame - bit
Hub and repeater
Hub

30. This device creates one big collision domain and one large broadcast domain.
Hub
198.211.57.209
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits

31. 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 Session layer sets up - maintains - and terminates sessions between applications.
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 Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none

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

33. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4
CA:F5:83:EB

34. What are two purposes for segmentation with a bridge?
183/B7
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Layer 4
To create more collision domains and to add more bandwidth for users.

35. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub and repeater
To provide a means for the receiver to govern the amount of data sent by the sender.
Fiber-opticcable
The Transport layer segments user data.

36. Logical addressing is used at this layer.
Network
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Transport

37. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer creates packets out of segments handed down from the Transport layer.
48 bits (6 bytes)
CA:F5:83:EB
Transport

38. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link & Physical
The Physical layer is responsible for the electrical and mechanical connections between devices.
To create more collision domains and to add more bandwidth for users.
3 - 2 - 1 - none

39. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Router
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.
RJ45 UTP crossover cable.

40. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP rolled cable.

41. Convert 192.168.10.15 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111
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 Physical layer is responsible for transporting 1s and 0s in a digital signal.

42. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Router
132.210.184.166
Data Link & Physical
Hub and repeater

43. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Layer 4
Switch or bridge
84:D2:43:B3
Fiber-opticcable

44. This device uses hardware addresses to filter a network.
183/B7
Bridge or switch
Decrease the window size.
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. This layer creates a virtual circuit before transmitting between two end stations.
Data Link (LLC sublayer)
Switch to switch - host to host - switch to host
Transport
204.51.170.85

46. What is the purpose of flow control?
To create more collision domains and to add more bandwidth for users.
Decrease the window size.
To provide a means for the receiver to govern the amount of data sent by the sender.
Data - segment - packet - frame - bit

47. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Decrease the window size.
Fiber-opticcable
The Transport layer segments user data.
Segments - packets - frames - bits

48. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link & Physical
To create more collision domains and to add more bandwidth for users.
The Network layer provides routing through an internetwork and logical addressing.
Data Link

49. At which layer is routing implemented - enabling connections and path selection between two end systems?
Segments - packets - frames - bits
Decrease the window size.
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. This device sends and receives information about the Network layer.
Router
Hub
Decrease the window size.
Data - segment - packet - frame - bit