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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 11001010.11110101.10000011.11101011 to hexadecimal format.
Segments - packets - frames - bits
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
Data Link (LLC sublayer)

2. Name three types of connections that can use full duplex.
Transport
Transport
Data Link
Switch to switch - host to host - switch to host

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
00001010.00001011.00001100.01100011
10101100.00010000.00010100.00110111

4. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
84:D2:43:B3
198.211.57.209
RJ45 UTP rolled cable.
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.

5. This device can never run full duplex.
Decrease the window size.
Router
RJ45 UTP crossover cable.
Hub

6. At which layer is routing implemented - enabling connections and path selection between two end systems?
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 Transport layer segments user data.
The Network layer provides routing through an internetwork and logical addressing.
84:D2:43:B3

7. This device sends and receives information about the Network layer.
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.
11000000.10101000.00001010.00001111
Layer 4

8. Which layer segments and reassembles data into a data stream?
10101100.00010000.00010100.00110111
84:D2:43:B3
Transport
132.210.184.166

9. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.

10. When data is encapsulated - which is the correct order?
Transport
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.

11. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
183/B7
Network
Buffering - windowing - congestion avoidance
3 - 2 - 1 - none

12. 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.
To create more collision domains and to add more bandwidth for users.
Transport
Data - segment - packet - frame - bit

13. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer is responsible for the framing of data packets.
Layer 4
CA:F5:83:EB

14. Which layer provides logical addressing that routers will use for path determination?
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.
The Session layer creates sessions between different hosts' applications.
The Network layer provides logical addressing - typically IP addressing and routing.

15. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link (LLC sublayer)
Decrease the window size.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.

16. 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.
The Network layer provides logical addressing - typically IP addressing and routing.
Fiber-opticcable
Router

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

18. What is the bit length and expression form of a MAC address?
Transport
48 bits (6 bytes)
Decrease the window size.
The Data Link layer frames packets received from the Network layer.

19. Which layer is represented by frames?
Transport
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
10101100.00010000.00010100.00110111

20. Which of the following are 3 common types of flow control?
183/B7
Buffering - windowing - congestion avoidance
Data Link & Physical
Data - segment - packet - frame - bit

21. What is the purpose of flow control?
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.
Transport
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.

22. 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Fiber-opticcable
To create more collision domains and to add more bandwidth for users.

23. Which two fields are contained within an IEEE Ethernet frame header?
The Data Link layer frames packets received from the Network layer.
Fiber-opticcable
Source and destination MAC address and FCS field
3 - 2 - 1 - none

24. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
183/B7
D8:1B:3D:76

25. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Transport
D8:1B:3D:76
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

26. Ethernet is defined at these layers.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link & Physical
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

27. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
To create more collision domains and to add more bandwidth for users.
Network
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer segments user data.

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
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.
The Session layer creates sessions between different hosts' applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

29. This device can measure the distance to a remote network.
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable
RJ45 UTP rolled cable.
Router

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

31. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
CA:F5:83:EB
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.

32. This layer supports flow control and sequencing.
Data Link (LLC sublayer)
Transport
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

33. This device creates many smaller collision domains - but the network is still one large broadcast domain.
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 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.
Switch or bridge

34. What type of RJ45 UTP cable is used between switches?
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
Transport
RJ45 UTP crossover cable.

35. Segmentation of a data stream happens at which layer of the OSI 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
Transport
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)

36. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Transport layer segments user data.
Data Link
Fiber-opticcable
The Transport layer user virtual circuits to create a reliable connection between two hosts.

37. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
10101100.00010000.00010100.00110111
198.211.57.209
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.

38. This layer creates a virtual circuit before transmitting between two end stations.
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).
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
Fiber-opticcable

39. Logical addressing is used at this layer.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Switch to switch - host to host - switch to host
Network

40. Which layer is responsible for creating - managing - and terminating sessions between applications?
Data Link (LLC sublayer)
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.
The Transport layer segments user data.

41. This device breaks up collision domains and broadcast domains.
Data - segment - packet - frame - bit
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge
Router

42. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
3 - 2 - 1 - none
Router

43. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Switch or bridge
183/B7
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.

44. 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?
10101100.00010000.00010100.00110111
132.210.184.166
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

45. 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
The Network layer provides routing through an internetwork and logical addressing.
Network
Network

46. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.

47. Which layer is represented by segments?
The Transport layer segments user data.
Decrease the window size.
RJ45 UTP crossover cable.
The Data Link layer frames packets received from the Network layer.

48. Convert 172.16.20.55 to binary format.
Decrease the window size.
10101100.00010000.00010100.00110111
Source and destination MAC address and FCS field
Data Link (LLC sublayer)

49. What are two purposes for segmentation with a bridge?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides logical addressing - typically IP addressing and routing.
To create more collision domains and to add more bandwidth for users.
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.

50. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Network layer provides logical addressing - typically IP addressing and routing.
Transport
Layer 4
To create more collision domains and to add more bandwidth for users.