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Cisco Prep

Instructions:

Answer 50 questions in 20 minutes. 2 minutes extra for reading the instructions.
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. This layer supports flow control and sequencing.
Hub
198.211.57.209
Transport
3 - 2 - 1 - none

2. When data is encapsulated - which is the correct order?
The Data Link layer frames packets received from the Network layer.
Data Link
Data - segment - packet - frame - bit
Hub

3. This device creates one big collision domain and one large broadcast domain.
The Network layer provides routing through an internetwork and logical addressing.
Hub
84:D2:43:B3
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.

4. Which layer is represented by segments?
Hub
204.51.170.85
CA:F5:83:EB
The Transport layer segments user data.

5. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
204.51.170.85
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 frames packets received from the Network layer.
3 - 2 - 1 - none

6. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
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).
Switch to switch - host to host - switch to host
3 - 2 - 1 - none
D8:1B:3D:76

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

8. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
48 bits (6 bytes)
The Presentation layer makes sure that data is in a readable format for the Application 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.
Data Link & Physical

9. This device uses hardware addresses to filter a network.
Data Link (LLC sublayer)
198.211.57.209
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch

10. 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?
Switch or bridge
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.
RJ45 UTP rolled cable.

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

12. Which layer is represented by frames?
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Data - segment - packet - frame - bit
The Data Link layer frames packets received from the Network layer.

13. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
To provide a means for the receiver to govern the amount of data sent by the sender.
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.

14. This device can never run full duplex.
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub
Source and destination MAC address and FCS field

15. What are two purposes for segmentation with a bridge?
183/B7
Transport
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.

16. Convert 192.168.10.15 to binary format.
11000000.10101000.00001010.00001111
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.
Router

17. Logical addressing is used at this layer.
Layer 4
198.211.57.209
The Data Link layer is responsible for the framing of data packets.
Network

18. Which layer segments and reassembles data into a data stream?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
RJ45 UTP crossover cable.
Bridge or switch
Transport

19. This device sends and receives information about the Network layer.
Router
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

20. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Router
Network
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.

21. What is the bit length and expression form of a MAC address?
Segments - packets - frames - bits
11000000.10101000.00001010.00001111
CA:F5:83:EB
48 bits (6 bytes)

22. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Transport
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
Transport

23. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Transport
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP crossover cable.

24. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Fiber-opticcable
198.211.57.209
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

25. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
Hub
CA:F5:83:EB
48 bits (6 bytes)
Layer 4

26. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.

27. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Switch or bridge
Hub and repeater
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit

28. At which layer is routing implemented - enabling connections and path selection between two end systems?
Transport
The Transport layer segments user data.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
The Network layer provides routing through an internetwork and logical addressing.

29. Which layer is represented by packets?
3 - 2 - 1 - none
The Network layer creates packets out of segments handed down from the Transport layer.
84:D2:43:B3
Transport

30. What is the purpose of flow control?
Buffering - windowing - congestion avoidance
To provide a means for the receiver to govern the amount of data sent by the sender.
Network
Packet switching - Packet filtering - Internetwork communication - Path selection

31. This layer creates a virtual circuit before transmitting between two end stations.
Fiber-opticcable
Router
Transport
183/B7

32. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Switch or bridge
Bridge or switch
132.210.184.166

33. 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?
Hub and repeater
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Decrease the window size.
Switch or bridge

34. This device breaks up collision domains and broadcast domains.
Router
Switch or bridge
The Transport layer segments user data.
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

35. Which of the following are 3 common types of flow control?
Buffering - windowing - congestion avoidance
To create more collision domains and to add more bandwidth for users.
Transport
Switch or bridge

36. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Segments - packets - frames - bits
The Data Link layer is responsible for the framing of data packets.
Hub and repeater
Fiber-opticcable

37. Which two fields are contained within an IEEE Ethernet frame header?
Transport
Network
The Data Link layer frames packets received from the Network layer.
Source and destination MAC address and FCS field

38. What type of RJ45 UTP cable is used between switches?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
RJ45 UTP crossover cable.

39. Segmentation of a data stream happens at which layer of the OSI model?
Transport
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.
RJ45 UTP rolled cable.

40. Name three types of connections that can use full duplex.
The Network layer provides logical addressing - typically IP addressing and routing.
Switch to switch - host to host - switch to host
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.

41. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
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).
Hub

42. Ethernet is defined at these layers.
Data Link & Physical
The Session layer sets up - maintains - and terminates sessions between applications.
Source and destination MAC address and FCS field
Data - segment - packet - frame - bit

43. 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
Data Link (LLC sublayer)
Router
RJ45 UTP rolled cable.
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).

44. This layer uses service access points.
Data Link & Physical
Switch to switch - host to host - switch to host
Data Link (LLC sublayer)
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

45. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Router
RJ45 UTP crossover cable.
Fiber-opticcable
Data Link

46. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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 - segment - packet - frame - bit
Source and destination MAC address and FCS field

47. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
183/B7
84:D2:43:B3
CA:F5:83:EB
The Physical layer is responsible for the electrical and mechanical connections between devices.

48. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
Transport
Source and destination MAC address and FCS field
Hub and repeater

49. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Transport layer segments user data.
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

50. Name four router functions.
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Packet switching - Packet filtering - Internetwork communication - Path selection