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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 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Switch to switch - host to host - switch to host
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.

2. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Router
Router
Hub and repeater
Transport

3. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Buffering - windowing - congestion avoidance
Layer 4
Network

4. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
Decrease the window size.
84:D2:43:B3
Fiber-opticcable

5. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
48 bits (6 bytes)
Data Link

6. Which of the following are 3 common types of flow control?
D8:1B:3D:76
Buffering - windowing - congestion avoidance
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. 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?
Router
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Transport

8. Which layer segments and reassembles data into a data stream?
Transport
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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
198.211.57.209

9. Which layer is represented by segments?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer segments user data.
Decrease the window size.
The Data Link layer is responsible for the framing of data packets.

10. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
Packet switching - Packet filtering - Internetwork communication - Path selection

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

12. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Data Link layer is responsible for the framing of data packets.
Router
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.

13. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
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).
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
Segments - packets - frames - bits

14. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
00001010.00001011.00001100.01100011
Hub and repeater
Hub
Network

15. At which layer is routing implemented - enabling connections and path selection between two end systems?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides routing through an internetwork and logical addressing.

16. Which layer is represented by bits?
11000000.10101000.00001010.00001111
Hub and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Transport layer segments user data.

17. This layer creates a virtual circuit before transmitting between two end stations.
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.
183/B7
The Transport layer user virtual circuits to create a reliable connection between two hosts.

18. 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?
Data Link (LLC sublayer)
Decrease the window size.
The Network layer provides routing through an internetwork and logical addressing.
48 bits (6 bytes)

19. Name four router functions.
Network
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides logical addressing - typically IP addressing and routing.

20. Which layer is represented by frames?
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
Source and destination MAC address and FCS field
The Data Link layer frames packets received from the Network layer.

21. Convert 10.11.12.99 to binary format.
The Data Link layer is responsible for the framing of data packets.
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

22. Convert 192.168.10.15 to binary format.
To create more collision domains and to add more bandwidth for users.
Transport
11000000.10101000.00001010.00001111
Router

23. Name three types of connections that can use full duplex.
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
84:D2:43:B3
Layer 4

24. What are two purposes for segmentation with a bridge?
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 - segment - packet - frame - bit
Hub and repeater
To create more collision domains and to add more bandwidth for users.

25. This device can never run full duplex.
To create more collision domains and to add more bandwidth for users.
Data Link
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

26. This device uses hardware addresses to filter a network.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
Bridge or switch

27. 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.
To provide a means for the receiver to govern the amount of data sent by the sender.
Switch or bridge
Layer 4

28. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Network
Switch or bridge
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

29. Segmentation of a data stream happens at which layer of the OSI model?
Transport
10101100.00010000.00010100.00110111
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

30. This device can measure the distance to a remote network.
Data Link
Router
Data Link & Physical
RJ45 UTP rolled cable.

31. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
10101100.00010000.00010100.00110111
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.
Source and destination MAC address and FCS field

32. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
198.211.57.209
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.
The Data Link layer is responsible for the framing of data packets.

33. What is the purpose of flow control?
CA:F5:83:EB
Switch or bridge
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.

34. Why does the data communication industry use the layered OSI reference model? (Name two)
The Data Link layer is responsible for the framing of data packets.
The Physical layer is responsible for the electrical and mechanical connections between devices.
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

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
The Network layer provides logical addressing - typically IP addressing and routing.
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).
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

36. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Hub
00001010.00001011.00001100.01100011
Switch or bridge

37. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
198.211.57.209
Hub
The Transport layer user virtual circuits to create a reliable connection between two hosts.
183/B7

38. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Switch or bridge
The Session layer sets up - maintains - and terminates sessions between applications.
Decrease the window size.

39. Ethernet is defined at these layers.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link
Data Link & Physical
Switch or bridge

40. What type of RJ45 UTP cable is used between switches?
The Transport layer segments user data.
Transport
RJ45 UTP crossover cable.
3 - 2 - 1 - none

41. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
84:D2:43:B3
Router

42. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
Router

43. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.

44. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Data Link layer frames packets received from the Network layer.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Segments - packets - frames - bits

45. This device breaks up collision domains and broadcast domains.
The Data Link layer is responsible for the framing of data packets.
Router
To provide a means for the receiver to govern the amount of data sent by the sender.
Data - segment - packet - frame - bit

46. Which layer is represented by packets?
Data Link & Physical
Switch to switch - host to host - switch to host
The Network layer creates packets out of segments handed down from the Transport layer.
Packet switching - Packet filtering - Internetwork communication - Path selection

47. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
To create more collision domains and to add more bandwidth for users.
Layer 4
48 bits (6 bytes)
D8:1B:3D:76

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Switch to switch - host to host - switch to host
204.51.170.85
48 bits (6 bytes)
The Session layer creates sessions between different hosts' applications.

49. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
Layer 4
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

50. When data is encapsulated - which is the correct order?
The Session layer creates sessions between different hosts' applications.
Data - segment - packet - frame - bit
The Network layer provides routing through an internetwork and logical addressing.
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.