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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. Which of the following are 3 common types of flow control?
132.210.184.166
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Buffering - windowing - congestion avoidance

2. Which layer is represented by frames?
Network
The Data Link layer frames packets received from the Network layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer creates sessions between different hosts' applications.

3. 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.
Data Link
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.
Transport

4. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link & Physical
Transport
10101100.00010000.00010100.00110111

5. This device sends and receives information about the Network layer.
48 bits (6 bytes)
CA:F5:83:EB
Layer 4
Router

6. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
Segments - packets - frames - bits
3 - 2 - 1 - none

7. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Bridge or switch
Network
Transport
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.

8. Convert 10.11.12.99 to binary format.
The Data Link layer is responsible for the framing of data packets.
Buffering - windowing - congestion avoidance
Fiber-opticcable
00001010.00001011.00001100.01100011

9. Segmentation of a data stream happens at which layer of the OSI model?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP crossover cable.
11000000.10101000.00001010.00001111
Transport

10. Which layer segments and reassembles data into a data stream?
The Data Link layer is responsible for the framing of data packets.
Network
84:D2:43:B3
Transport

11. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
48 bits (6 bytes)
3 - 2 - 1 - none
Layer 4
D8:1B:3D:76

12. This device can measure the distance to a remote network.
Router
Hub and repeater
Network
Hub

13. Logical addressing is used at this layer.
Network
Data Link (LLC sublayer)
Transport
The Data Link layer is responsible for the framing of data packets.

14. Why does the data communication industry use the layered OSI reference model? (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
Decrease the window size.
198.211.57.209
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.

15. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Data Link
The Data Link layer frames packets received from the Network layer.
D8:1B:3D:76
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

16. Which layer is represented by packets?
Source and destination MAC address and FCS field
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
The Data Link layer frames packets received from the Network layer.

17. This layer supports flow control and sequencing.
D8:1B:3D:76
CA:F5:83:EB
The Transport layer segments user data.
Transport

18. What type of RJ45 UTP cable is used between switches?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
RJ45 UTP crossover cable.
Data Link & Physical

19. 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
The Transport layer segments user data.
RJ45 UTP rolled cable.
132.210.184.166

20. This layer uses service access points.
Data - segment - packet - frame - bit
Layer 4
Data Link (LLC sublayer)
48 bits (6 bytes)

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Router
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field

22. This device can never run full duplex.
Fiber-opticcable
Hub
Data Link & Physical
To provide a means for the receiver to govern the amount of data sent by the sender.

23. This device breaks up collision domains and broadcast domains.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub
Router

24. Name three types of connections that can use full duplex.
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Bridge or switch
Switch to switch - host to host - switch to host

25. Which two fields are contained within an IEEE Ethernet frame header?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
183/B7
Source and destination MAC address and FCS field
The Transport layer segments user data.

26. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Decrease the window size.
Transport
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.

27. Which layer is represented by segments?
Fiber-opticcable
Data Link (LLC sublayer)
Decrease the window size.
The Transport layer segments user data.

28. What are two purposes for segmentation with a bridge?
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111

29. This device creates one big collision domain and one large broadcast domain.
198.211.57.209
204.51.170.85
Data Link (LLC sublayer)
Hub

30. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
The Data Link layer frames packets received from the Network layer.
183/B7
198.211.57.209

31. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
CA:F5:83:EB
Data Link (LLC sublayer)
RJ45 UTP rolled cable.

32. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
Data Link
CA:F5:83:EB
Fiber-opticcable

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

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34. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Bridge or switch
Layer 4
D8:1B:3D:76

35. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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.
Layer 4
132.210.184.166
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.

36. When data is encapsulated - which is the correct order?
Switch or bridge
Router
The Session layer sets up - maintains - and terminates sessions between applications.
Data - segment - packet - frame - bit

37. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Network
183/B7
Data Link & Physical
Data Link

38. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer is responsible for the framing of data packets.
3 - 2 - 1 - none

39. 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 Presentation layer makes sure that data is in a readable format for the Application layer.
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).
RJ45 UTP crossover 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

40. 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
The Network layer provides logical addressing - typically IP addressing and routing.
The Data Link layer frames packets received from the Network layer.
Data Link (LLC sublayer)

41. Which layer is responsible for creating - managing - and terminating sessions between applications?
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
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection

42. 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.
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

43. Ethernet is defined at these layers.
10101100.00010000.00010100.00110111
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.
183/B7
Data Link & Physical

44. This device uses hardware addresses to filter a network.
Bridge or switch
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.
204.51.170.85
The Session layer sets up - maintains - and terminates sessions between applications.

45. This device creates many smaller collision domains - but the network is still one large broadcast domain.
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
Switch or bridge
3 - 2 - 1 - none

46. Convert 192.168.10.15 to binary format.
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
The Transport layer segments user data.
Router

47. Which layer is represented by bits?
Hub
Switch or bridge
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Decrease the window size.

48. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Hub and repeater
Data Link (LLC sublayer)
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

49. Which layer provides logical addressing that routers will use for path determination?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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 logical addressing - typically IP addressing and routing.
48 bits (6 bytes)

50. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link (LLC sublayer)
Data Link
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