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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 represented by bits?
Data Link & Physical
Segments - packets - frames - bits
Switch to switch - host to host - switch to host
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

2. Which layer is represented by packets?
The Network layer creates packets out of segments handed down from the Transport layer.
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.
Network

3. Which layer is represented by segments?
Transport
Switch to switch - host to host - switch to host
The Transport layer segments user data.
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.

4. 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.
10101100.00010000.00010100.00110111
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
Router

5. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.
Layer 4

6. Logical addressing is used at this layer.
Packet switching - Packet filtering - Internetwork communication - Path selection
Router
Network
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Switch to switch - host to host - switch to host
Fiber-opticcable
The Network layer provides routing through an internetwork and logical addressing.
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

8. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
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.

9. Which layer is responsible for creating - managing - and terminating sessions between applications?
132.210.184.166
Layer 4
The Session layer sets up - maintains - and terminates sessions between 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).

10. This device creates one big collision domain and one large broadcast domain.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub
RJ45 UTP rolled cable.
The Data Link layer frames packets received from the Network layer.

11. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Switch or bridge
3 - 2 - 1 - none
Source and destination MAC address and FCS field
00001010.00001011.00001100.01100011

12. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.
11000000.10101000.00001010.00001111

13. This device can never run full duplex.
Layer 4
Hub
Transport
48 bits (6 bytes)

14. What are two purposes for segmentation with a bridge?
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).
To create more collision domains and to add more bandwidth for users.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Network

15. At which layer is routing implemented - enabling connections and path selection between two end systems?
48 bits (6 bytes)
The Network layer provides routing through an internetwork and logical addressing.
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.

16. 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.
Decrease the window size.
Transport
The Session layer creates sessions between different hosts' applications.

17. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
84:D2:43:B3
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Fiber-opticcable
48 bits (6 bytes)

18. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
10101100.00010000.00010100.00110111
Transport
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).

19. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
3 - 2 - 1 - none
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.

20. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
The Network layer creates packets out of segments handed down from the Transport layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
204.51.170.85

21. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data - segment - packet - frame - bit
10101100.00010000.00010100.00110111
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.

22. Which of the following are 3 common types of flow control?
The Network layer creates packets out of segments handed down from the Transport layer.
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
183/B7

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

24. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Transport

25. Name four router functions.
Buffering - windowing - congestion avoidance
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
Decrease the window size.

26. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
132.210.184.166
11000000.10101000.00001010.00001111
The Network layer provides routing through an internetwork and logical addressing.
Hub and repeater

27. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Hub and repeater
RJ45 UTP rolled cable.
198.211.57.209
204.51.170.85

28. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Switch to switch - host to host - switch to host
The Network layer provides logical addressing - typically IP addressing and routing.
Network
Data - segment - packet - frame - bit

29. Which layer is represented by frames?
To create more collision domains and to add more bandwidth for users.
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Data Link layer frames packets received from the Network layer.

30. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Packet switching - Packet filtering - Internetwork communication - Path selection
10101100.00010000.00010100.00110111
CA:F5:83:EB

31. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Layer 4
Switch to switch - host to host - switch to host
The Data Link layer is responsible for the framing of data packets.

32. This device uses hardware addresses to filter a network.
Bridge or switch
Switch or bridge
The Session layer sets up - maintains - and terminates sessions between applications.
198.211.57.209

33. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP rolled cable.
The Transport layer segments user data.
Decrease the window size.

34. This layer uses service access points.
Data Link (LLC sublayer)
Data Link
10101100.00010000.00010100.00110111
The Transport layer segments user data.

35. What is the bit length and expression form of a MAC address?
10101100.00010000.00010100.00110111
Transport
48 bits (6 bytes)
The Data Link layer is responsible for the framing of data packets.

36. Why does the data communication industry use the layered OSI reference model? (Name two)
Switch to switch - host to host - switch to host
Layer 4
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

37. When data is encapsulated - which is the correct order?
204.51.170.85
Router
Data - segment - packet - frame - bit
Buffering - windowing - congestion avoidance

38. 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?
CA:F5:83:EB
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
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.

39. 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?
84:D2:43:B3
Fiber-opticcable
Data Link
Decrease the window size.

40. This layer supports flow control and sequencing.
10101100.00010000.00010100.00110111
Router
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.
Transport

41. 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.
Transport
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

42. Which two fields are contained within an IEEE Ethernet frame header?
Packet switching - Packet filtering - Internetwork communication - Path selection
Source and destination MAC address and FCS field
RJ45 UTP crossover cable.
Network

43. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Router
D8:1B:3D:76
The Transport layer segments user data.
3 - 2 - 1 - none

44. This device sends and receives information about the Network 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).
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router
The Network layer provides routing through an internetwork and logical addressing.

45. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Fiber-opticcable
Router

46. This layer creates a virtual circuit before transmitting between two end stations.
Transport
10101100.00010000.00010100.00110111
Fiber-opticcable
The Network layer provides logical addressing - typically IP addressing and routing.

47. Convert 10.11.12.99 to binary format.
198.211.57.209
10101100.00010000.00010100.00110111
48 bits (6 bytes)
00001010.00001011.00001100.01100011

48. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Buffering - windowing - congestion avoidance
Source and destination MAC address and FCS field
Transport

49. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Network layer provides logical addressing - typically IP addressing and routing.
D8:1B:3D:76
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP rolled cable.

50. What is the purpose of flow control?
204.51.170.85
Buffering - windowing - congestion avoidance
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.