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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. Name three types of connections that can use full duplex.
183/B7
The Data Link layer frames packets received from the Network layer.
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.

2. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
Router
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.

3. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
D8:1B:3D:76
Segments - packets - frames - bits

4. This device uses hardware addresses to filter a network.
Bridge or switch
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111
Packet switching - Packet filtering - Internetwork communication - Path selection

5. Which layer is represented by packets?
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7
The Session layer creates sessions between different hosts' applications.

6. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Network layer provides routing through an internetwork and logical addressing.
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
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.

7. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
204.51.170.85
132.210.184.166
198.211.57.209
Data Link

8. Which layer segments and reassembles data into a data stream?
Transport
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.

9. Convert 172.16.20.55 to binary format.
Transport
48 bits (6 bytes)
10101100.00010000.00010100.00110111
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

10. Convert 192.168.10.15 to binary format.
Decrease the window size.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

11. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Layer 4
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.
D8:1B:3D:76

12. This device can never run full duplex.
RJ45 UTP crossover cable.
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

13. Convert 10.11.12.99 to binary format.
11000000.10101000.00001010.00001111
183/B7
RJ45 UTP rolled cable.
00001010.00001011.00001100.01100011

14. Which layer is responsible for creating - managing - and terminating sessions between applications?
RJ45 UTP crossover cable.
Data Link
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.

15. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
The Data Link layer is responsible for the framing of data packets.
The Network layer provides logical addressing - typically IP addressing and routing.
48 bits (6 bytes)

16. When data is encapsulated - which is the correct order?
Transport
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111
Source and destination MAC address and FCS field

17. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Network
Fiber-opticcable
Transport
Segments - packets - frames - bits

18. 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?
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.
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.
To provide a means for the receiver to govern the amount of data sent by the sender.

19. This device creates one big collision domain and one large broadcast domain.
CA:F5:83:EB
Hub
198.211.57.209
11000000.10101000.00001010.00001111

20. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Router
Transport
Layer 4
198.211.57.209

21. Logical addressing is used at this layer.
Router
00001010.00001011.00001100.01100011
Data Link
Network

22. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Fiber-opticcable
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
204.51.170.85
Data - segment - packet - frame - bit

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

24. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
183/B7
Data Link
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

25. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
183/B7
RJ45 UTP rolled cable.
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.

26. Which layer is represented by frames?
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
Network
The Data Link layer frames packets received from the Network layer.

27. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
Switch or bridge
Bridge or switch
Layer 4

28. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
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
Network
Router

29. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
To provide a means for the receiver to govern the amount of data sent by the sender.
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.
84:D2:43:B3
The Data Link layer is responsible for the framing of data packets.

30. 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?
Decrease the window size.
132.210.184.166
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
Bridge or switch

31. This layer supports flow control and sequencing.
D8:1B:3D:76
Transport
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
183/B7

32. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Router
Network
To create more collision domains and to add more bandwidth for users.

33. Segmentation of a data stream happens at which layer of the OSI model?
Hub
Network
84:D2:43:B3
Transport

34. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Transport
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.
CA:F5:83:EB

35. This device breaks up collision domains and broadcast domains.
Router
Switch to switch - host to host - switch to host
Segments - packets - frames - bits
The Presentation layer makes sure that data is in a readable format for the Application layer.

36. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data - segment - packet - frame - bit
Data Link & Physical
132.210.184.166
204.51.170.85

37. This device can measure the distance to a remote network.
Router
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
84:D2:43:B3
Layer 4

38. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Segments - packets - frames - bits
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

39. What are two purposes for segmentation with a bridge?
The Network layer provides routing through an internetwork and logical addressing.
Data Link
To create more collision domains and to add more bandwidth for users.
Transport

40. What is the bit length and expression form of a MAC address?
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.
48 bits (6 bytes)
Data Link (LLC sublayer)

41. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch
Segments - packets - frames - bits

42. Which layer provides logical addressing that routers will use for path determination?
Transport
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.
The Network layer provides logical addressing - typically IP addressing and routing.

43. This layer uses service access points.
To create more collision domains and to add more bandwidth for users.
Data Link (LLC sublayer)
The Network layer creates packets out of segments handed down from the Transport layer.
Switch to switch - host to host - switch to host

44. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
D8:1B:3D:76
CA:F5:83:EB
The Transport layer segments user data.

45. Which layer is represented by bits?
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Layer 4

46. 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
Router
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).
Router

47. What type of RJ45 UTP cable is used between switches?
11000000.10101000.00001010.00001111
Fiber-opticcable
RJ45 UTP crossover cable.
Data Link & Physical

48. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Session layer creates sessions between different hosts' applications.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
3 - 2 - 1 - none
183/B7

49. Which layer is represented by segments?
The Data Link layer frames packets received from the Network layer.
The Transport layer segments user data.
Buffering - windowing - congestion avoidance
Data Link (LLC sublayer)

50. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
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.
The Network layer creates packets out of segments handed down from the Transport layer.