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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 10000100.11010010.10111000.10100110 to decimal IP format.
Buffering - windowing - congestion avoidance
Network
132.210.184.166
The Data Link layer frames packets received from the Network layer.

2. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
Data - segment - packet - frame - bit
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
132.210.184.166
204.51.170.85
Source and destination MAC address and FCS field
CA:F5:83:EB

4. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
132.210.184.166
To create more collision domains and to add more bandwidth for users.
The Session layer creates sessions between different hosts' applications.

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

6. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
198.211.57.209
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Bridge or switch
Router

7. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
Hub
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.

8. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
10101100.00010000.00010100.00110111
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.
Hub

9. This device breaks up collision domains and broadcast domains.
198.211.57.209
Router
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.

10. Name three types of connections that can use full duplex.
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection

11. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
10101100.00010000.00010100.00110111
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch to switch - host to host - switch to host

12. 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.
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.

13. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
00001010.00001011.00001100.01100011
Transport
10101100.00010000.00010100.00110111
Layer 4

14. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB
The Session layer creates sessions between different hosts' applications.
Data Link & Physical

15. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
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 and repeater
198.211.57.209

16. Logical addressing is used at this layer.
Layer 4
Hub
The Transport layer segments user data.
Network

17. What type of RJ45 UTP cable is used between switches?
3 - 2 - 1 - none
RJ45 UTP crossover cable.
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.

18. This device can measure the distance to a remote network.
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).
Hub and repeater
The Session layer creates sessions between different hosts' applications.

19. This layer creates a virtual circuit before transmitting between two end stations.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
48 bits (6 bytes)
RJ45 UTP crossover cable.

20. What is the bit length and expression form of a MAC address?
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 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

21. Which layer is represented by frames?
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Data Link layer frames packets received from the Network layer.

22. Which layer is represented by bits?
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

23. Which layer is represented by segments?
Data Link & Physical
The Transport layer segments user data.
Data Link (LLC sublayer)
Bridge or switch

24. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
183/B7
84:D2:43:B3

25. This device creates one big collision domain and one large broadcast domain.
Hub
D8:1B:3D:76
Router
3 - 2 - 1 - none

26. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Network
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
48 bits (6 bytes)

27. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Hub and repeater
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 creates packets out of segments handed down from the Transport layer.
D8:1B:3D:76

28. 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
84:D2:43:B3
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 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.
Router

29. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Switch to switch - host to host - switch to host
Router
Network

30. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Network
The Data Link layer is responsible for the framing of data packets.
The Network layer creates packets out of segments handed down from the Transport layer.

31. At which layer is routing implemented - enabling connections and path selection between two end systems?
Hub and repeater
The Network layer provides routing through an internetwork and logical addressing.
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

32. Ethernet is defined at these layers.
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.
Data Link & Physical
Segments - packets - frames - bits

33. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Data Link (LLC sublayer)
Router
The Network layer provides routing through an internetwork and logical addressing.

34. 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?
The Physical layer is responsible for the electrical and mechanical connections between devices.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Source and destination MAC address and FCS field

35. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Data Link layer is responsible for the framing of data packets.
Data Link
3 - 2 - 1 - none
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

36. Name four router functions.
Buffering - windowing - congestion avoidance
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.

37. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data - segment - packet - frame - bit
Transport

38. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data Link
Bridge or switch
Segments - packets - frames - bits
Fiber-opticcable

39. Why does the data communication industry use the layered OSI reference model? (Name two)
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.

40. This device can never run full duplex.
Hub
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.
Segments - packets - frames - bits

41. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
CA:F5:83:EB
Data Link (LLC sublayer)
D8:1B:3D:76

42. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
Fiber-opticcable
183/B7
The Presentation layer makes sure that data is in a readable format for the Application layer.

43. Which layer is represented by packets?
Hub
Router
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.

44. Convert 10.11.12.99 to binary format.
84:D2:43:B3
Switch or bridge
00001010.00001011.00001100.01100011
Network

45. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Transport
Network
RJ45 UTP rolled cable.
Hub

46. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Router
Data Link
To create more collision domains and to add more bandwidth for users.
Transport

47. 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
Data Link (LLC sublayer)
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.
RJ45 UTP crossover cable.

48. This layer supports flow control and sequencing.
The Transport layer segments user data.
Transport
Data Link (LLC sublayer)
198.211.57.209

49. Which of the following are 3 common types of flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Buffering - windowing - congestion avoidance
Bridge or switch
Data Link & Physical

50. What are two purposes for segmentation with a bridge?
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.
Transport
Data Link (LLC sublayer)