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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 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?
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 creates sessions between different hosts' applications.
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

2. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
3 - 2 - 1 - none
Data - segment - packet - frame - bit
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
Layer 4

3. This layer uses service access points.
Data Link (LLC sublayer)
The Transport layer segments user data.
D8:1B:3D:76
The Data Link layer frames packets received from the Network layer.

4. Convert 192.168.10.15 to binary format.
Data Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111
11000000.10101000.00001010.00001111

5. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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
Layer 4
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host

6. Which two fields are contained within an IEEE Ethernet frame header?
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.

7. 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?
Transport
Hub
Decrease the window size.
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.

8. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Layer 4
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.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Physical layer is responsible for the electrical and mechanical connections between devices.

9. 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 Presentation layer makes sure that data is in a readable format for the Application layer.
Network
Hub

10. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
3 - 2 - 1 - none
Data Link
Segments - packets - frames - bits
To create more collision domains and to add more bandwidth for users.

11. Logical addressing is used at this layer.
Network
The Session layer sets up - maintains - and terminates sessions between applications.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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).

12. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Transport
Network

13. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
D8:1B:3D:76
The Network layer provides logical addressing - typically IP addressing and routing.
Network

14. Which layer is represented by packets?
Router
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link
Bridge or switch

15. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Data Link layer is responsible for the framing of data packets.
84:D2:43:B3
204.51.170.85
CA:F5:83:EB

16. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
RJ45 UTP rolled cable.
204.51.170.85
84:D2:43:B3
Packet switching - Packet filtering - Internetwork communication - Path selection

17. This layer creates a virtual circuit before transmitting between two end stations.
Segments - packets - frames - bits
10101100.00010000.00010100.00110111
Transport
Hub and repeater

18. Which layer is responsible for creating - managing - and terminating sessions between applications?
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
Router
00001010.00001011.00001100.01100011

19. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.
Router

20. 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.
204.51.170.85
198.211.57.209
132.210.184.166

21. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
204.51.170.85
Network
RJ45 UTP rolled cable.
132.210.184.166

22. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
11000000.10101000.00001010.00001111
Data Link
Data Link (LLC sublayer)

23. Which layer is used for reliable communication between end nodes over the network and provides mechanisms for establishing - maintaining - and terminating virtual circuits; transport-fault detection recovery; and controlling the flow of information?
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
Hub and repeater

24. What are two purposes for segmentation with a bridge?
Packet switching - Packet filtering - Internetwork communication - Path selection
To create more collision domains and to add more bandwidth for users.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7

25. This device sends and receives information about the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport

26. Which layer is represented by segments?
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
Network
The Transport layer segments user data.

27. 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 provide a means for the receiver to govern the amount of data sent by the sender.
Transport
The Session layer creates sessions between different hosts' applications.

28. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
10101100.00010000.00010100.00110111
RJ45 UTP rolled cable.
Data Link
3 - 2 - 1 - none

29. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
Layer 4

30. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
204.51.170.85
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.

31. This device can measure the distance to a remote network.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Data Link

32. Which of the following are 3 common types of flow control?
RJ45 UTP crossover cable.
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance

33. When data is encapsulated - which is the correct order?
Packet switching - Packet filtering - Internetwork communication - Path selection
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.
Data - segment - packet - frame - bit

34. This device breaks up collision domains and broadcast domains.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To provide a means for the receiver to govern the amount of data sent by the sender.

35. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Decrease the window size.
Router
Switch or bridge
The Data Link layer is responsible for the framing of data packets.

36. 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.
Switch to switch - host to host - switch to host
183/B7
Data Link (LLC sublayer)

37. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host
183/B7
10101100.00010000.00010100.00110111

38. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111
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

39. Which layer segments and reassembles data into a data stream?
Transport
Layer 4
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field

40. Which layer is represented by frames?
Transport
To create more collision domains and to add more bandwidth for users.
The Data Link layer frames packets received from the Network layer.
Hub

41. What is the purpose of flow control?
The Session layer sets up - maintains - and terminates sessions between applications.
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
Data Link & Physical

42. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits
Data Link

43. This device creates one big collision domain and one large broadcast domain.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

44. This device uses hardware addresses to filter a network.
Packet switching - Packet filtering - Internetwork communication - Path selection
Buffering - windowing - congestion avoidance
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.

45. This layer supports flow control and sequencing.
11000000.10101000.00001010.00001111
Transport
132.210.184.166
The Data Link layer is responsible for the framing of data packets.

46. Which layer provides logical addressing that routers will use for path determination?
Transport
Transport
Data Link (LLC sublayer)
The Network layer provides logical addressing - typically IP addressing and routing.

47. Which layer is represented by bits?
The Session layer creates sessions between different hosts' applications.
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Segments - packets - frames - bits

48. 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
204.51.170.85
Layer 4
Switch or bridge
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).

49. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
00001010.00001011.00001100.01100011
Transport
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

50. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
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.