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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 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
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.
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
Segments - packets - frames - bits

2. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Router
Buffering - windowing - congestion avoidance
48 bits (6 bytes)
Network

3. This layer uses service access points.
Transport
D8:1B:3D:76
Data Link (LLC sublayer)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

4. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Switch to switch - host to host - switch to host
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
Packet switching - Packet filtering - Internetwork communication - Path selection

5. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
48 bits (6 bytes)
The Network layer provides logical addressing - typically IP addressing and routing.
CA:F5:83:EB
Transport

6. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
The Data Link layer frames packets received from the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
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

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?
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.
Hub
Decrease the window size.

8. Ethernet is defined at these layers.
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical

9. Convert 172.16.20.55 to binary format.
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111
Fiber-opticcable

10. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
To create more collision domains and to add more bandwidth for users.
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.
The Network layer provides routing through an internetwork and logical addressing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

11. Which two fields are contained within an IEEE Ethernet frame header?
132.210.184.166
Router
Source and destination MAC address and FCS field
To create more collision domains and to add more bandwidth for users.

12. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Decrease the window size.
Transport
RJ45 UTP crossover cable.

13. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Source and destination MAC address and FCS field
Transport
Segments - packets - frames - bits

14. Which layer is represented by bits?
00001010.00001011.00001100.01100011
The Network layer provides logical addressing - typically IP addressing and routing.
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.

15. Name three types of connections that can use full duplex.
Layer 4
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Switch to switch - host to host - switch to host

16. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
RJ45 UTP rolled cable.
D8:1B:3D:76
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

17. This layer supports flow control and sequencing.
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111
Transport
The Session layer creates sessions between different hosts' applications.

18. 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
Data Link (LLC sublayer)
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.

19. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
84:D2:43:B3
The Transport layer segments user data.
00001010.00001011.00001100.01100011

20. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Fiber-opticcable
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Hub

21. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Source and destination MAC address and FCS field
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.
The Data Link layer frames packets received from the Network layer.

22. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
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 provide a means for the receiver to govern the amount of data sent by the sender.
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.

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?
183/B7
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Data Link
Hub

24. Segmentation of a data stream happens at which layer of the OSI model?
To create more collision domains and to add more bandwidth for users.
RJ45 UTP crossover cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
3 - 2 - 1 - none
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.
Layer 4

26. Which layer is represented by segments?
Source and destination MAC address and FCS field
Network
The Transport layer segments user data.
Segments - packets - frames - bits

27. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
Data Link
198.211.57.209
Network

28. This layer creates a virtual circuit before transmitting between two end stations.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport
The Session layer creates sessions between different hosts' applications.
To create more collision domains and to add more bandwidth for users.

29. Name four router functions.
Data Link (LLC sublayer)
Layer 4
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer frames packets received from the Network layer.

30. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Network
Decrease the window size.
84:D2:43:B3
48 bits (6 bytes)

31. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.
Network

32. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
11000000.10101000.00001010.00001111
Hub
183/B7
Buffering - windowing - congestion avoidance

33. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
Fiber-opticcable
11000000.10101000.00001010.00001111
The Transport layer user virtual circuits to create a reliable connection between two hosts.

34. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data - segment - packet - frame - bit
The Data Link layer is responsible for the framing of data packets.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Presentation layer makes sure that data is in a readable format for the Application layer.

35. Which of the following are 3 common types of flow control?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Buffering - windowing - congestion avoidance
Decrease the window size.
Switch to switch - host to host - switch to host

36. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
Data Link
D8:1B:3D:76
Layer 4

37. This device breaks up collision domains and broadcast domains.
Router
The Session layer creates sessions between different hosts' applications.
Transport
11000000.10101000.00001010.00001111

38. This device can never run full duplex.
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
Data Link
Hub

39. 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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
3 - 2 - 1 - none

40. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Packet switching - Packet filtering - Internetwork communication - Path selection
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

41. Which layer is represented by frames?
Data Link & Physical
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.
Hub
The Data Link layer frames packets received from the Network layer.

42. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Bridge or switch
The Session layer creates sessions between different hosts' applications.
RJ45 UTP crossover cable.

43. Which layer segments and reassembles data into a data stream?
Transport
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection

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

45. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Network layer provides routing through an internetwork and logical addressing.
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

46. This device sends and receives information about the Network layer.
Router
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.
Packet switching - Packet filtering - Internetwork communication - Path selection

47. At which layer is routing implemented - enabling connections and path selection between two end systems?
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
The Network layer provides routing through an internetwork and logical addressing.

48. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
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
Transport
Transport

49. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
RJ45 UTP crossover cable.
Layer 4
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

50. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
Fiber-opticcable
CA:F5:83:EB