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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. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
3 - 2 - 1 - none
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

2. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
11000000.10101000.00001010.00001111
To create more collision domains and to add more bandwidth for users.
Router

3. 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?
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.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable

4. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
3 - 2 - 1 - none
204.51.170.85
Data Link (LLC sublayer)

5. Convert 192.168.10.15 to binary format.
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP crossover cable.
Transport
11000000.10101000.00001010.00001111

6. This device sends and receives information about the Network layer.
Router
RJ45 UTP rolled cable.
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

7. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.
198.211.57.209
Source and destination MAC address and FCS field

8. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Data Link layer frames packets received from the Network layer.
48 bits (6 bytes)
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 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.

9. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Segments - packets - frames - bits
Decrease the window size.
Data Link (LLC sublayer)

10. 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 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).
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field

11. This device breaks up collision domains and broadcast domains.
Router
Network
Data - segment - packet - frame - bit
183/B7

12. Name four router functions.
The Network layer provides logical addressing - typically IP addressing and routing.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.
To provide a means for the receiver to govern the amount of data sent by the sender.

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

14. This device uses hardware addresses to filter a network.
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection
204.51.170.85
Buffering - windowing - congestion avoidance

15. Which layer segments and reassembles data into a data stream?
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
48 bits (6 bytes)
Transport
Segments - packets - frames - bits

16. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
CA:F5:83:EB
Fiber-opticcable
The Network layer provides logical addressing - typically IP addressing and routing.
Segments - packets - frames - bits

17. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Decrease the window size.
3 - 2 - 1 - none
Buffering - windowing - congestion avoidance

18. 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.
D8:1B:3D:76
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.

19. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link
Hub

20. Ethernet is defined at these layers.
Data Link & Physical
CA:F5:83:EB
Transport
Data Link

21. 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 Network layer creates packets out of segments handed down from the Transport layer.
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

22. 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.
Transport
Network
Hub

23. 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?
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP rolled cable.

24. Which layer is represented by segments?
The Transport layer segments user data.
Data Link
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

25. Which two fields are contained within an IEEE Ethernet frame header?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field

26. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Data Link layer is responsible for the framing of data packets.
Network
Hub
Switch or bridge

27. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
3 - 2 - 1 - none
11000000.10101000.00001010.00001111
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.
132.210.184.166

28. This device creates one big collision domain and one large broadcast domain.
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.
3 - 2 - 1 - none
Hub
Hub and repeater

29. 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?
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
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
Decrease the window size.

30. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Switch or bridge
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)

31. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
3 - 2 - 1 - none
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.

32. Which layer is responsible for creating - managing - and terminating sessions between applications?
00001010.00001011.00001100.01100011
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Session layer sets up - maintains - and terminates sessions between applications.
84:D2:43:B3

33. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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).
204.51.170.85

34. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
132.210.184.166
Layer 4

35. This layer uses service access points.
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011

36. Logical addressing is used at this layer.
00001010.00001011.00001100.01100011
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).
11000000.10101000.00001010.00001111
Network

37. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
00001010.00001011.00001100.01100011
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link

38. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Hub
The Session layer creates sessions between different hosts' applications.
183/B7
Network

39. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Segments - packets - frames - bits
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance

40. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Session layer creates sessions between different hosts' applications.
Transport
Hub
Fiber-opticcable

41. Segmentation of a data stream happens at which layer of the OSI model?
Router
Layer 4
Router
Transport

42. 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.
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
Network
D8:1B:3D:76

43. When data is encapsulated - which is the correct order?
132.210.184.166
Data - segment - packet - frame - bit
Hub and repeater
3 - 2 - 1 - none

44. What is the bit length and expression form of a MAC address?
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
11000000.10101000.00001010.00001111
48 bits (6 bytes)
Data Link & Physical

45. Convert 172.16.20.55 to binary format.
The Session layer creates sessions between different hosts' applications.
The Transport layer segments user data.
10101100.00010000.00010100.00110111
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).

46. 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.
The Network layer creates packets out of segments handed down from the Transport layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
RJ45 UTP rolled cable.
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
CA:F5:83:EB

48. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Transport
RJ45 UTP crossover cable.
Hub and repeater
Network

49. Why does the data communication industry use the layered OSI reference model? (Name two)
Transport
Network
RJ45 UTP rolled cable.
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. Convert 10.11.12.99 to binary format.
Source and destination MAC address and FCS field
00001010.00001011.00001100.01100011
The Data Link layer frames packets received from the Network layer.
To create more collision domains and to add more bandwidth for users.