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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 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.
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To create more collision domains and to add more bandwidth for users.

2. Name four router functions.
Fiber-opticcable
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209

3. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
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 and repeater

4. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Data Link layer frames packets received from the Network layer.
Hub and repeater
D8:1B:3D:76
Data Link

5. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Switch to switch - host to host - switch to host
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer creates sessions between different hosts' applications.
183/B7

6. Which layer is represented by packets?
Router
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
10101100.00010000.00010100.00110111

7. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
132.210.184.166
The Data Link layer is responsible for the framing of data packets.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

8. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Data - segment - packet - frame - bit
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.

9. Segmentation of a data stream happens at which layer of the OSI model?
183/B7
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
Transport

10. Ethernet is defined at these layers.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link & Physical
183/B7
RJ45 UTP crossover cable.

11. Which layer segments and reassembles data into a data stream?
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).
Transport
RJ45 UTP crossover cable.

12. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
CA:F5:83:EB
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)

13. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.
CA:F5:83:EB

14. This layer supports flow control and sequencing.
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
11000000.10101000.00001010.00001111
The Transport layer segments user data.

15. Which layer provides logical addressing that routers will use for path determination?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link

16. Which layer is represented by bits?
Source and destination MAC address and FCS field
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

17. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
Data Link (LLC sublayer)
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

18. This layer creates a virtual circuit before transmitting between two end stations.
183/B7
The Session layer creates sessions between different hosts' applications.
Transport
204.51.170.85

19. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Decrease the window size.
183/B7
Data Link & Physical
Switch or bridge

20. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
00001010.00001011.00001100.01100011
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub
RJ45 UTP rolled cable.

22. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Buffering - windowing - congestion avoidance
Hub
RJ45 UTP rolled cable.
Transport

23. This device sends and receives information about the Network layer.
Router
183/B7
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.

24. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Hub
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 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.

25. Which two fields are contained within an IEEE Ethernet frame header?
Transport
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.

26. Name three types of connections that can use full duplex.
204.51.170.85
132.210.184.166
Switch to switch - host to host - switch to host
10101100.00010000.00010100.00110111

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
Layer 4
The Transport layer segments user data.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

28. This layer uses service access points.
Data Link (LLC sublayer)
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
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

29. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Data Link (LLC sublayer)
Data - segment - packet - frame - bit
Switch or bridge

30. This device breaks up collision domains and broadcast domains.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router
Hub
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. This device uses hardware addresses to filter a network.
10101100.00010000.00010100.00110111
Bridge or switch
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.

32. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Layer 4
Transport
The Network layer provides logical addressing - typically IP addressing and routing.

33. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
183/B7
Switch to switch - host to host - switch to host
204.51.170.85
The Data Link layer is responsible for the framing of data packets.

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
The Transport layer segments user data.
Segments - packets - frames - bits
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).
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

35. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Data Link & Physical
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
3 - 2 - 1 - none

36. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
CA:F5:83:EB
84:D2:43:B3
Data - segment - packet - frame - bit
RJ45 UTP rolled cable.

37. This device creates one big collision domain and one large broadcast domain.
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

38. Which layer is represented by segments?
The Transport layer segments user data.
Hub and repeater
10101100.00010000.00010100.00110111
Transport

39. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Router
Router
Hub and repeater
Data Link

40. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
RJ45 UTP rolled cable.
Data Link
Decrease the window size.
The Physical layer is responsible for the electrical and mechanical connections between devices.

41. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
Decrease the window size.
The Network layer provides routing through an internetwork and logical addressing.

42. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
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 and repeater
00001010.00001011.00001100.01100011

43. 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?
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.
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

44. This device can measure the distance to a remote network.
RJ45 UTP rolled cable.
Router
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

45. What type of RJ45 UTP cable is used between switches?
The Network layer provides logical addressing - typically IP addressing and routing.
132.210.184.166
204.51.170.85
RJ45 UTP crossover cable.

46. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
48 bits (6 bytes)
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.
Network

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

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Layer 4
Decrease the window size.
204.51.170.85
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

49. What is the purpose of flow control?
48 bits (6 bytes)
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Transport layer segments user data.

50. 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?
10101100.00010000.00010100.00110111
Decrease the window size.
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection