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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 is represented by bits?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer sets up - maintains - and terminates sessions between applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166

2. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Data Link
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 creates sessions between different hosts' applications.
Router

3. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance

4. 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.
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.

5. This device sends and receives information about the Network layer.
Router
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge

6. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
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 Presentation layer makes sure that data is in a readable format for the Application 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.

7. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
RJ45 UTP crossover cable.
D8:1B:3D:76
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router

8. Which layer is represented by segments?
The Network layer provides logical addressing - typically IP addressing and routing.
The Transport layer segments user data.
204.51.170.85
The Network layer creates packets out of segments handed down from the Transport layer.

9. 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.
To create more collision domains and to add more bandwidth for users.
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.

10. Logical addressing is used at this layer.
The Network layer creates packets out of segments handed down from the Transport layer.
Network
10101100.00010000.00010100.00110111
Layer 4

11. When data is encapsulated - which is the correct order?
48 bits (6 bytes)
Data - segment - packet - frame - bit
Layer 4
Bridge or switch

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

13. Ethernet is defined at these layers.
Layer 4
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link & Physical

14. 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.
Transport
The Transport layer segments user data.
Packet switching - Packet filtering - Internetwork communication - Path selection

15. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
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.
Router

16. Which layer provides logical addressing that routers will use for path determination?
Data Link (LLC sublayer)
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)
D8:1B:3D:76

17. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
Data Link & Physical
Segments - packets - frames - bits

18. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
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.
11000000.10101000.00001010.00001111

19. What type of RJ45 UTP cable is used between switches?
Network
The Data Link layer frames packets received from the Network layer.
RJ45 UTP crossover cable.
Bridge or switch

20. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
To create more collision domains and to add more bandwidth for users.
The Data Link layer is responsible for the framing of data packets.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
CA:F5:83:EB

21. What are two purposes for segmentation with a bridge?
Hub and repeater
Layer 4
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 create more collision domains and to add more bandwidth for users.

22. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Hub
10101100.00010000.00010100.00110111
Fiber-opticcable
Segments - packets - frames - bits

23. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection
Hub and repeater

24. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable
183/B7
11000000.10101000.00001010.00001111

25. What is the purpose of flow control?
To create more collision domains and to add more bandwidth for users.
183/B7
11000000.10101000.00001010.00001111
To provide a means for the receiver to govern the amount of data sent by the sender.

26. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Transport
84:D2:43:B3
The Data Link layer frames packets received from the Network 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

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Router
Transport
132.210.184.166
The Session layer creates sessions between different hosts' applications.

28. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Network
Data Link (LLC sublayer)
Transport
84:D2:43:B3

29. This device breaks up collision domains and broadcast domains.
Router
D8:1B:3D:76
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.

30. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
3 - 2 - 1 - none
204.51.170.85
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.

31. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Transport layer segments user data.
The Session layer sets up - maintains - and terminates sessions between applications.
RJ45 UTP rolled cable.
The Network layer provides logical addressing - typically IP addressing and routing.

32. Which layer segments and reassembles data into a data stream?
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

33. This device can never run full duplex.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.
Hub

34. 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
00001010.00001011.00001100.01100011
The Session layer creates sessions between different hosts' 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 Network layer provides routing through an internetwork and logical addressing.

35. Name four router functions.
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection
Source and destination MAC address and FCS field
Data Link & Physical

36. This layer supports flow control and sequencing.
Bridge or switch
Transport
Decrease the window size.
Data - segment - packet - frame - bit

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

38. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Network
Transport
Layer 4
CA:F5:83:EB

39. Why does the data communication industry use the layered OSI reference model? (Name two)
00001010.00001011.00001100.01100011
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.
Data - segment - packet - frame - bit
Transport

40. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Transport
3 - 2 - 1 - none
The Network layer provides routing through an internetwork and logical addressing.

41. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
11000000.10101000.00001010.00001111

42. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
11000000.10101000.00001010.00001111
Hub
Data Link
00001010.00001011.00001100.01100011

43. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.
204.51.170.85
198.211.57.209

44. This layer uses service access points.
3 - 2 - 1 - none
Data Link (LLC sublayer)
48 bits (6 bytes)
To provide a means for the receiver to govern the amount of data sent by the sender.

45. Which of the following are 3 common types of flow control?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance
Data Link

46. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
RJ45 UTP rolled cable.
Source and destination MAC address and FCS field
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.

47. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
Hub and repeater
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Bridge or switch

48. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
48 bits (6 bytes)
The Presentation layer makes sure that data is in a readable format for the Application layer.
Switch or bridge
3 - 2 - 1 - none

49. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
CA:F5:83:EB
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

50. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
Data Link
198.211.57.209