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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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Data Link layer is responsible for the framing of data packets.

2. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
RJ45 UTP crossover cable.
204.51.170.85
Layer 4

3. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Decrease the window size.
132.210.184.166
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.

4. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
Fiber-opticcable
Network
Data - segment - packet - frame - bit

5. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.
48 bits (6 bytes)
Buffering - windowing - congestion avoidance

6. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
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.
11000000.10101000.00001010.00001111
Layer 4

7. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
The Physical layer is responsible for the electrical and mechanical connections between devices.
10101100.00010000.00010100.00110111
Data Link & Physical
Hub

8. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Network
The Transport layer segments user data.
D8:1B:3D:76
84:D2:43:B3

9. Segmentation of a data stream happens at which layer of the OSI model?
Hub and repeater
Transport
The Physical layer is responsible for the electrical and mechanical connections 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.

10. Convert 10.11.12.99 to binary format.
Decrease the window size.
The Data Link layer frames packets received from the Network layer.
Transport
00001010.00001011.00001100.01100011

11. What type of RJ45 UTP cable is used between switches?
Layer 4
Router
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

12. 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 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 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).
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection

13. This device sends and receives information about the Network layer.
Bridge or switch
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

14. 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?
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link & Physical
Transport
Decrease the window size.

15. What are two purposes for segmentation with a bridge?
Fiber-opticcable
Layer 4
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance

16. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
The Transport layer segments user data.
Data Link
10101100.00010000.00010100.00110111
Transport

17. Which layer is represented by packets?
The Session layer sets up - maintains - and terminates sessions between applications.
Hub
The Network layer creates packets out of segments handed down from the Transport 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).

18. 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?
3 - 2 - 1 - none
Hub
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.

19. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
Data - segment - packet - frame - bit
84:D2:43:B3
204.51.170.85

20. This device creates one big collision domain and one large broadcast domain.
The Session layer creates sessions between different hosts' applications.
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.
Hub

21. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Hub and repeater
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
204.51.170.85

22. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
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.
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.

23. 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.
Network
The Transport layer segments user data.
Hub

24. Logical addressing is used at this layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network
The Session layer sets up - maintains - and terminates sessions between applications.
Source and destination MAC address and FCS field

25. Why does the data communication industry use the layered OSI reference model? (Name two)
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.
Data - segment - packet - frame - bit
84:D2:43:B3

26. 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
Network
Bridge or switch
Data Link (LLC sublayer)

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Data Link
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Fiber-opticcable

28. 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 the electrical and mechanical connections between devices.
Network
Switch to switch - host to host - switch to host
Hub

29. Convert 192.168.10.15 to binary format.
RJ45 UTP rolled cable.
Switch or bridge
The Physical layer is responsible for the electrical and mechanical connections between devices.
11000000.10101000.00001010.00001111

30. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
198.211.57.209
The Session layer sets up - maintains - and terminates sessions between applications.
11000000.10101000.00001010.00001111

31. This layer uses service access points.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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).

32. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
RJ45 UTP crossover cable.
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.

33. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
132.210.184.166
The Physical layer is responsible for the electrical and mechanical connections between devices.
183/B7
The Transport layer segments user data.

34. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub
Network
183/B7

35. Name four router functions.
Hub
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
00001010.00001011.00001100.01100011

36. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Router
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
00001010.00001011.00001100.01100011

37. This layer creates a virtual circuit before transmitting between two end stations.
Transport
204.51.170.85
Router
CA:F5:83:EB

38. This device can measure the distance to a remote network.
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
Data Link (LLC sublayer)
Buffering - windowing - congestion avoidance

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

40. This device breaks up collision domains and broadcast domains.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router
Packet switching - Packet filtering - Internetwork communication - Path selection
Source and destination MAC address and FCS field

41. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Data - segment - packet - frame - bit
Decrease the window size.
Transport

42. Which layer segments and reassembles data into a data stream?
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
Decrease the window size.
Router

43. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data - segment - packet - frame - bit

44. What is the purpose of flow control?
Hub
Transport
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.

45. Convert 172.16.20.55 to binary format.
Router
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
10101100.00010000.00010100.00110111

46. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Network layer provides logical addressing - typically IP addressing and routing.
Decrease the window size.
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.

47. What is the bit length and expression form of a MAC address?
Decrease the window size.
10101100.00010000.00010100.00110111
48 bits (6 bytes)
84:D2:43:B3

48. Which layer is represented by frames?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Data Link
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.

49. Which layer is represented by bits?
Source and destination MAC address and FCS field
Switch to switch - host to host - switch to host
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 transporting 1s and 0s in a digital signal.

50. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Network layer creates packets out of segments handed down from the Transport layer.
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111
198.211.57.209