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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 four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
11000000.10101000.00001010.00001111

2. 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.
The Session layer creates sessions between different hosts' applications.
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).
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.
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
Data Link & Physical
D8:1B:3D:76

4. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link
CA:F5:83:EB
Buffering - windowing - congestion avoidance

5. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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.
RJ45 UTP rolled cable.
Transport
Layer 4

6. 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?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link & Physical
10101100.00010000.00010100.00110111
183/B7

7. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
CA:F5:83:EB
Router
The Transport layer segments user data.

8. This device can measure the distance to a remote network.
Router
Fiber-opticcable
Decrease the window size.
To create more collision domains and to add more bandwidth for users.

9. This device sends and receives information about the Network layer.
Layer 4
Router
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.

10. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

11. This device uses hardware addresses to filter a network.
Bridge or switch
To create more collision domains and to add more bandwidth for users.
Transport
RJ45 UTP rolled cable.

12. This device breaks up collision domains and broadcast domains.
Router
11000000.10101000.00001010.00001111
Bridge or switch
To create more collision domains and to add more bandwidth for users.

13. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Bridge or switch
Segments - packets - frames - bits
CA:F5:83:EB
198.211.57.209

14. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Segments - packets - frames - bits
00001010.00001011.00001100.01100011
198.211.57.209

15. Why does the data communication industry use the layered OSI reference model? (Name two)
Network
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 Data Link layer frames packets received from the Network layer.
10101100.00010000.00010100.00110111

16. Convert 192.168.10.15 to binary format.
10101100.00010000.00010100.00110111
The Transport layer segments user data.
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111

17. This device can never run full duplex.
11000000.10101000.00001010.00001111
48 bits (6 bytes)
Transport
Hub

18. What type of RJ45 UTP cable is used between switches?
Router
Transport
RJ45 UTP crossover cable.
Data Link

19. Convert 10.11.12.99 to binary format.
Network
Decrease the window size.
00001010.00001011.00001100.01100011
Switch or bridge

20. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
Decrease the window size.
The Data Link layer is responsible for the framing of data packets.
Fiber-opticcable

21. Segmentation of a data stream happens at which layer of the OSI model?
Transport
Layer 4
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.

22. 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.
To create more collision domains and to add more bandwidth for users.
Network
Fiber-opticcable

23. What is the bit length and expression form of a MAC address?
Source and destination MAC address and FCS field
48 bits (6 bytes)
10101100.00010000.00010100.00110111
Fiber-opticcable

24. 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 Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer creates packets out of segments handed down from the Transport layer.

25. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Network layer creates packets out of segments handed down from the Transport 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
To create more collision domains and to add more bandwidth for users.
Transport

26. Which layer segments and reassembles data into a data stream?
Decrease the window size.
Segments - packets - frames - bits
Transport
Layer 4

27. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166

28. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Transport
RJ45 UTP crossover cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
D8:1B:3D:76

29. Ethernet is defined at these layers.
Data Link & Physical
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
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer is responsible for the framing of data packets.

30. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Session layer creates sessions between different hosts' applications.
Transport
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).

31. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
3 - 2 - 1 - none
Router
204.51.170.85

32. What are two purposes for segmentation with a bridge?
Transport
To create more collision domains and to add more bandwidth for users.
Data Link
Hub

33. This device creates one big collision domain and one large broadcast domain.
Packet switching - Packet filtering - Internetwork communication - Path selection
132.210.184.166
Bridge or switch
Hub

34. Logical addressing is used at this layer.
Network
00001010.00001011.00001100.01100011
Hub
The Transport layer segments user data.

35. Which layer is represented by bits?
10101100.00010000.00010100.00110111
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.
Hub and repeater

36. When data is encapsulated - which is the correct order?
The Network layer provides routing through an internetwork and logical addressing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data - segment - packet - frame - bit
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.

37. Convert 172.16.20.55 to binary format.
204.51.170.85
10101100.00010000.00010100.00110111
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.
Decrease the window size.

38. Which layer is represented by frames?
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.
Data Link

39. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Hub
Network
Data Link & Physical

40. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
198.211.57.209
Network
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.

41. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Layer 4
Segments - packets - frames - bits
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.

42. This layer supports flow control and sequencing.
00001010.00001011.00001100.01100011
Transport
The Network layer creates packets out of segments handed down from the Transport layer.
132.210.184.166

43. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Layer 4
The Network layer provides routing through an internetwork and logical addressing.

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

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Source and destination MAC address and FCS field
48 bits (6 bytes)
Layer 4
Switch or bridge

46. At which layer is routing implemented - enabling connections and path selection between two end systems?
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.

47. What is the purpose of flow control?
198.211.57.209
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

48. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Buffering - windowing - congestion avoidance
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.
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for the electrical and mechanical connections between devices.

49. Which of the following are 3 common types of flow control?
Hub and repeater
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host
Router

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?
The Session layer creates sessions between different hosts' applications.
Transport
Router
Decrease the window size.