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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.
Router
The Transport layer segments user data.
Switch to switch - host to host - switch to host
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

2. 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?
Source and destination MAC address and FCS field
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Transport layer segments user data.
Transport

3. Logical addressing is used at this layer.
Network
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 logical addressing - typically IP addressing and routing.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

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

5. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Data Link (LLC sublayer)
The Network layer provides routing through an internetwork and logical addressing.
132.210.184.166
Packet switching - Packet filtering - Internetwork communication - Path selection

6. This layer uses service access points.
Decrease the window size.
Transport
84:D2:43:B3
Data Link (LLC sublayer)

7. What is the purpose of flow control?
198.211.57.209
To provide a means for the receiver to govern the amount of data sent by the sender.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
00001010.00001011.00001100.01100011

8. Which layer segments and reassembles data into a data stream?
3 - 2 - 1 - none
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
To create more collision domains and to add more bandwidth for users.
Transport

9. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
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.
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides routing through an internetwork and logical addressing.

10. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Hub
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.

11. Which layer is represented by segments?
The Transport layer segments user data.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
The Data Link layer frames packets received from the Network layer.

12. This device can never run full duplex.
204.51.170.85
Buffering - windowing - congestion avoidance
Hub
Source and destination MAC address and FCS field

13. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Segments - packets - frames - bits
RJ45 UTP rolled cable.
11000000.10101000.00001010.00001111
132.210.184.166

14. Which layer is responsible for creating - managing - and terminating sessions between applications?
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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 Session layer sets up - maintains - and terminates sessions between applications.

15. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable
The Data Link layer is responsible for the framing of data packets.
Data Link

16. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.

17. Which of the following are 3 common types of flow control?
Switch to switch - host to host - switch to host
The Presentation layer makes sure that data is in a readable format for the Application layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Buffering - windowing - congestion avoidance

18. This device breaks up collision domains and broadcast domains.
The Session layer sets up - maintains - and terminates sessions between applications.
To create more collision domains and to add more bandwidth for users.
Router
The Network layer provides logical addressing - typically IP addressing and routing.

19. This device uses hardware addresses to filter a network.
The Network layer provides routing through an internetwork and logical addressing.
Layer 4
Router
Bridge or switch

20. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Hub and repeater
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.
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.

21. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Session layer creates sessions between different hosts' applications.
Fiber-opticcable
Network
RJ45 UTP rolled cable.

22. 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?
Switch to switch - host to host - switch to host
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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.
Data Link (LLC sublayer)

23. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits

24. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
204.51.170.85
To create more collision domains and to add more bandwidth for users.
To provide a means for the receiver to govern the amount of data sent by the sender.

25. Which layer is represented by packets?
The Transport layer segments user data.
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.

26. What is the bit length and expression form of a MAC address?
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.
48 bits (6 bytes)
Transport

27. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Source and destination MAC address and FCS field

28. This layer supports flow control and sequencing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field

29. Acknowledgments - sequencing - and flow control are characteristics of which OSI 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.
Switch or bridge
Layer 4
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

30. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Layer 4
84:D2:43:B3
RJ45 UTP rolled cable.
Decrease the window size.

31. Ethernet is defined at these layers.
183/B7
Data Link & Physical
Fiber-opticcable
Network

32. What type of RJ45 UTP cable is used between switches?
Buffering - windowing - congestion avoidance
RJ45 UTP crossover cable.
Hub
The Network layer provides routing through an internetwork and logical addressing.

33. This device creates one big collision domain and one large broadcast domain.
Data Link
Hub
10101100.00010000.00010100.00110111
183/B7

34. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
00001010.00001011.00001100.01100011
Transport
Data Link (LLC sublayer)

35. 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
Transport
Segments - packets - frames - bits
3 - 2 - 1 - none
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).

36. Why does the data communication industry use the layered OSI reference model? (Name two)
Packet switching - Packet filtering - Internetwork communication - Path selection
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.
183/B7
Data Link & Physical

37. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
10101100.00010000.00010100.00110111
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host
RJ45 UTP rolled cable.

38. Convert 10.11.12.99 to binary format.
Bridge or switch
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
00001010.00001011.00001100.01100011
Packet switching - Packet filtering - Internetwork communication - Path selection

39. Convert 11011000.00011011.00111101.01110110 to hexadecimal 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.
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
Fiber-opticcable

40. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.

41. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link (LLC sublayer)
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.

42. 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.
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

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

44. This layer creates a virtual circuit before transmitting between two end stations.
48 bits (6 bytes)
Transport
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.

45. At which layer is routing implemented - enabling connections and path selection between two end systems?
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 Network layer provides routing through an internetwork and logical addressing.
The Session layer creates sessions between different hosts' applications.

46. Which layer is represented by bits?
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.
Bridge or switch
Router

47. Which layer is represented by frames?
The Data Link layer frames packets received from the Network layer.
183/B7
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Source and destination MAC address and FCS field

48. Name four router functions.
Layer 4
Fiber-opticcable
Packet switching - Packet filtering - Internetwork communication - Path selection
To provide a means for the receiver to govern the amount of data sent by the sender.

49. What are two purposes for segmentation with a bridge?
Router
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.
CA:F5:83:EB

50. This device sends and receives information about the Network layer.
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).
48 bits (6 bytes)
Router