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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. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
84:D2:43:B3
The Presentation layer makes sure that data is in a readable format for the Application layer.
Hub

2. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
Transport

3. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.

4. This layer uses service access points.
Data Link (LLC sublayer)
Transport
Hub
132.210.184.166

5. Logical addressing is used at this layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Fiber-opticcable
Router
Network

6. When data is encapsulated - which is the correct order?
Hub and repeater
Router
Data - segment - packet - frame - bit
Router

7. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Buffering - windowing - congestion avoidance
The Physical layer is responsible for the electrical and mechanical connections between devices.
Router
Layer 4

8. Convert 172.16.20.55 to binary format.
Data Link & Physical
10101100.00010000.00010100.00110111
48 bits (6 bytes)
84:D2:43:B3

9. This layer creates a virtual circuit before transmitting between two end stations.
Transport
48 bits (6 bytes)
Data - segment - packet - frame - bit
84:D2:43:B3

10. Which layer is represented by packets?
The Session layer creates sessions between different hosts' applications.
Bridge or switch
The Network layer creates packets out of segments handed down from the Transport layer.
To create more collision domains and to add more bandwidth for users.

11. 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 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).
Fiber-opticcable
Router

12. This device sends and receives information about the Network layer.
CA:F5:83:EB
Transport
Router
Segments - packets - frames - bits

13. Which layer is represented by bits?
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

14. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

15. 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).
Data Link
Network
Transport

16. Which of the following are 3 common types of flow control?
183/B7
Buffering - windowing - congestion avoidance
Transport
The Data Link layer is responsible for the framing of data packets.

17. What type of RJ45 UTP cable is used between switches?
3 - 2 - 1 - none
RJ45 UTP crossover cable.
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.

18. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
10101100.00010000.00010100.00110111
Network
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

19. Name four router functions.
Source and destination MAC address and FCS field
10101100.00010000.00010100.00110111
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection

20. Convert 192.168.10.15 to binary format.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
11000000.10101000.00001010.00001111
Segments - packets - frames - bits
Data Link (LLC sublayer)

21. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
00001010.00001011.00001100.01100011
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.
The Transport layer segments user data.

22. This device can never run full duplex.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub
48 bits (6 bytes)
11000000.10101000.00001010.00001111

23. Which layer is responsible for creating - managing - and terminating sessions between applications?
Hub
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer frames packets received from the Network layer.

24. 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?
D8:1B:3D:76
Decrease the window size.
Data Link (LLC sublayer)
11000000.10101000.00001010.00001111

25. 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?
Data Link & Physical
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.

26. This layer supports flow control and sequencing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer is responsible for the framing of data packets.
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).

27. This device creates one big collision domain and one large broadcast domain.
Hub
CA:F5:83:EB
11000000.10101000.00001010.00001111
Bridge or switch

28. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Router
183/B7
CA:F5:83:EB
Transport

29. Which layer provides logical addressing that routers will use for path determination?
The Data Link layer frames packets received from the Network layer.
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
Network

30. This device breaks up collision domains and broadcast domains.
Router
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.
CA:F5:83:EB
Data Link (LLC sublayer)

31. 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 Data Link layer is responsible for the framing of data packets.
10101100.00010000.00010100.00110111
Switch or bridge

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

33. 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?
To create more collision domains and to add more bandwidth for users.
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
The Presentation layer makes sure that data is in a readable format for the Application layer.

34. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
11000000.10101000.00001010.00001111
Hub
Transport

35. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Data - segment - packet - frame - bit
RJ45 UTP crossover cable.
Buffering - windowing - congestion avoidance
132.210.184.166

36. Which layer is represented by segments?
The Data Link layer frames packets received from the Network layer.
The Transport layer segments user data.
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76

37. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
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
The Physical layer is responsible for the electrical and mechanical connections between devices.

38. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
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.
Bridge or switch
Packet switching - Packet filtering - Internetwork communication - Path selection
Router

39. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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).
Layer 4

40. Which layer segments and reassembles data into a data stream?
Hub and repeater
Transport
48 bits (6 bytes)
The Network layer creates packets out of segments handed down from the Transport layer.

41. What is the bit length and expression form of a MAC address?
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.
10101100.00010000.00010100.00110111
48 bits (6 bytes)

42. This device can measure the distance to a remote network.
CA:F5:83:EB
Decrease the window size.
Switch to switch - host to host - switch to host
Router

43. What are two purposes for segmentation with a bridge?
The Physical layer is responsible for the electrical and mechanical connections between devices.
00001010.00001011.00001100.01100011
Hub
To create more collision domains and to add more bandwidth for users.

44. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
Decrease the window size.

45. Name three types of connections that can use full duplex.
Router
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
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.

46. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
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.

47. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3
To create more collision domains and to add more bandwidth for users.

48. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Packet switching - Packet filtering - Internetwork communication - Path selection
Switch or bridge
To create more collision domains and to add more bandwidth for users.
Fiber-opticcable

49. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub and repeater
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.

50. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Transport
Decrease the window size.
D8:1B:3D:76
Packet switching - Packet filtering - Internetwork communication - Path selection