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

2. What is the bit length and expression form of a MAC address?
The Data Link layer is responsible for the framing of data packets.
Switch to switch - host to host - switch to host
48 bits (6 bytes)
The Transport layer segments user data.

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
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
3 - 2 - 1 - none
204.51.170.85

4. When data is encapsulated - which is the correct order?
Bridge or switch
48 bits (6 bytes)
To create more collision domains and to add more bandwidth for users.
Data - segment - packet - frame - bit

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
3 - 2 - 1 - none
Data Link & Physical
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Fiber-opticcable

6. This device creates one big collision domain and one large broadcast domain.
D8:1B:3D:76
CA:F5:83:EB
Hub
Network

7. 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
RJ45 UTP rolled cable.
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.
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).

8. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
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
11000000.10101000.00001010.00001111
The Data Link layer frames packets received from the Network layer.

9. This device sends and receives information about the Network layer.
Router
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Hub

10. 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
Source and destination MAC address and FCS field
132.210.184.166
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

11. Which layer segments and reassembles data into a data stream?
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.
Router
Transport
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.

12. Which layer is represented by packets?
Router
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

13. Segmentation of a data stream happens at which layer of the OSI model?
Data - segment - packet - frame - bit
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
RJ45 UTP rolled cable.
Transport

14. 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.
Layer 4
183/B7
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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Router
RJ45 UTP rolled cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
183/B7

16. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
Router
Fiber-opticcable

17. Convert 192.168.10.15 to binary format.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer frames packets received from the Network layer.
11000000.10101000.00001010.00001111
00001010.00001011.00001100.01100011

18. What type of RJ45 UTP cable is used between switches?
Hub
RJ45 UTP crossover cable.
Hub
Segments - packets - frames - bits

19. 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?
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
Hub and repeater
Decrease the window size.

20. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.
D8:1B:3D:76

21. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
Transport
00001010.00001011.00001100.01100011
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?
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).
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.

23. Which layer is represented by bits?
Hub
The Network layer creates packets out of segments handed down from the Transport layer.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

24. Which layer is represented by frames?
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 is responsible for the framing of data packets.
The Data Link layer frames packets received from the Network layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

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

26. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Data Link
Transport
198.211.57.209
10101100.00010000.00010100.00110111

27. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
3 - 2 - 1 - none
The Transport layer user virtual circuits to create a reliable connection between two hosts.

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
CA:F5:83:EB
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 Physical layer is responsible for the electrical and mechanical connections between devices.
00001010.00001011.00001100.01100011

29. This device uses hardware addresses to filter a network.
Bridge or switch
Switch or bridge
Transport
Router

30. Which two fields are contained within an IEEE Ethernet frame header?
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.

31. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Hub and repeater
Data - segment - packet - frame - bit
183/B7
RJ45 UTP crossover cable.

32. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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
48 bits (6 bytes)
84:D2:43:B3

33. This device breaks up collision domains and broadcast domains.
The Presentation layer makes sure that data is in a readable format for the Application layer.
D8:1B:3D:76
Router
The Network layer provides logical addressing - typically IP addressing and routing.

34. This layer uses service access points.
Data Link (LLC sublayer)
Transport
The Data Link layer is responsible for the framing of data packets.
198.211.57.209

35. What are two purposes for segmentation with a bridge?
183/B7
To create more collision domains and to add more bandwidth for users.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

36. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
198.211.57.209
Transport
Decrease the window size.

37. Which layer is responsible for creating - managing - and terminating sessions between applications?
Transport
Switch or bridge
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.

38. Ethernet is defined at these layers.
Hub
The Data Link layer is responsible for the framing of data packets.
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.

39. 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?
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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 Session layer creates sessions between different hosts' applications.

40. Name three types of connections that can use full duplex.
84:D2:43:B3
Switch to switch - host to host - switch to host
Switch or bridge
CA:F5:83:EB

41. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
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
Network

42. Convert 172.16.20.55 to binary 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.
The Data Link layer frames packets received from the Network layer.
3 - 2 - 1 - none
10101100.00010000.00010100.00110111

43. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Source and destination MAC address and FCS field
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.

44. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
Router
Bridge or switch
The Network layer provides logical addressing - typically IP addressing and routing.

45. This layer supports flow control and sequencing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7
RJ45 UTP crossover cable.
Transport

46. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Buffering - windowing - congestion avoidance
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)
CA:F5:83:EB

47. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
11000000.10101000.00001010.00001111
Switch or bridge
Layer 4
Data Link & Physical

48. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
183/B7
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
198.211.57.209

49. This device can never run full duplex.
Decrease the window size.
Hub
The Network layer provides routing through an internetwork and logical addressing.
Packet switching - Packet filtering - Internetwork communication - Path selection

50. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
204.51.170.85
Hub and repeater
Router