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Cisco Prep

Instructions:

Answer 50 questions in 20 minutes. 1 minute 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. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
84:D2:43:B3
10101100.00010000.00010100.00110111
Buffering - windowing - congestion avoidance

2. Why does the data communication industry use the layered OSI reference model? (Name two)
Bridge or switch
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.
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.

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

4. This layer supports flow control and sequencing.
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.
Transport
10101100.00010000.00010100.00110111

5. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Fiber-opticcable
CA:F5:83:EB
The Data Link layer is responsible for the framing of data packets.

6. Which layer is represented by segments?
To create more collision domains and to add more bandwidth for users.
The Transport layer segments user data.
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.

7. 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?
Decrease the window size.
Hub
183/B7
Router

8. What is the purpose of 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.
To provide a means for the receiver to govern the amount of data sent by the sender.
3 - 2 - 1 - none
204.51.170.85

9. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
CA:F5:83:EB
The Transport layer segments user data.
84:D2:43:B3
Transport

10. Which two fields are contained within an IEEE Ethernet frame header?
Network
Source and destination MAC address and FCS field
D8:1B:3D:76
The Transport layer segments user data.

11. 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 Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB
The Transport layer segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.

12. 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?
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 logical addressing - typically IP addressing and routing.
RJ45 UTP rolled cable.
Network

13. This layer creates a virtual circuit before transmitting between two end stations.
The Transport layer segments user data.
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.
Transport

14. This device creates many smaller collision domains - but the network is still one large broadcast domain.
D8:1B:3D:76
Transport
Switch or bridge
Data Link & Physical

15. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Source and destination MAC address and FCS field
Data Link & Physical
Data - segment - packet - frame - bit

16. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
Hub and repeater
Packet switching - Packet filtering - Internetwork communication - Path selection
The Network layer provides routing through an internetwork and logical addressing.

17. This device can never run full duplex.
Hub
Data Link & Physical
RJ45 UTP rolled cable.
198.211.57.209

18. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Layer 4

19. What type of RJ45 UTP cable is used between switches?
The Transport layer segments user data.
RJ45 UTP crossover cable.
Router
Data - segment - packet - frame - bit

20. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Router
The Data Link layer is responsible for the framing of data packets.
RJ45 UTP rolled cable.

21. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Session layer creates sessions between different hosts' applications.
RJ45 UTP crossover cable.
132.210.184.166

22. When data is encapsulated - which is the correct order?
00001010.00001011.00001100.01100011
198.211.57.209
Data - segment - packet - frame - bit
Source and destination MAC address and FCS field

23. Name three types of connections that can use full duplex.
Switch or bridge
Bridge or switch
Buffering - windowing - congestion avoidance
Switch to switch - host to host - switch to host

24. This device sends and receives information about the Network layer.
Switch to switch - host to host - switch to host
11000000.10101000.00001010.00001111
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

25. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data - segment - packet - frame - bit
RJ45 UTP rolled cable.
The Physical layer is responsible for the electrical and mechanical connections between devices.
204.51.170.85

26. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
The Session layer sets up - maintains - and terminates sessions between applications.
Fiber-opticcable
Segments - packets - frames - bits
Hub and repeater

27. Which layer is represented by bits?
Data - segment - packet - frame - bit
Segments - packets - frames - bits
3 - 2 - 1 - none
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

28. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Switch to switch - host to host - switch to host
The Transport layer segments user data.
D8:1B:3D:76
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.

29. 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.
Network
Switch to switch - host to host - switch to host
To create more collision domains and to add more bandwidth for users.

30. Which layer is represented by packets?
Packet switching - Packet filtering - Internetwork communication - Path selection
Network
Transport
The Network layer creates packets out of segments handed down from the Transport layer.

31. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Hub and repeater
The Data Link layer is responsible for the framing of data packets.
The Presentation layer makes sure that data is in a readable format for the Application layer.
RJ45 UTP rolled cable.

32. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
Router
Data Link

33. This device can measure the distance to a remote network.
CA:F5:83:EB
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.
Router
Data - segment - packet - frame - bit

34. Ethernet is defined at these layers.
Hub and repeater
Transport
The Data Link layer frames packets received from the Network layer.
Data Link & Physical

35. At which layer is routing implemented - enabling connections and path selection between two end systems?
3 - 2 - 1 - none
Transport
RJ45 UTP crossover cable.
The Network layer provides routing through an internetwork and logical addressing.

36. This device uses hardware addresses to filter a network.
Layer 4
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Bridge or switch
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

37. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Data Link layer frames packets received from the Network layer.
Data - segment - packet - frame - bit
198.211.57.209

38. Which layer is represented by frames?
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 sets up - maintains - and terminates sessions between applications.
The Data Link layer frames packets received from the Network layer.
132.210.184.166

39. 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 & Physical
Router
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).
198.211.57.209

40. This device creates one big collision domain and one large broadcast domain.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
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

41. Which of the following are 3 common types of flow control?
To create more collision domains and to add more bandwidth for users.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
Buffering - windowing - congestion avoidance

42. Logical addressing is used at this layer.
Transport
48 bits (6 bytes)
Network
204.51.170.85

43. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Data Link & Physical
Transport
RJ45 UTP rolled cable.
The Data Link layer is responsible for the framing of data packets.

44. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
D8:1B:3D:76
The Presentation layer makes sure that data is in a readable format for the Application layer.
183/B7

45. Which layer segments and reassembles data into a data stream?
Transport
Segments - packets - frames - bits
The Network layer provides routing through an internetwork and logical addressing.
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).

46. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Switch to switch - host to host - switch to host
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.
132.210.184.166

47. This device breaks up collision domains and broadcast domains.
Router
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Transport

48. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
Hub
Fiber-opticcable

49. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Hub and repeater
Router
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
CA:F5:83:EB

50. Segmentation of a data stream happens at which layer of the OSI model?
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).
204.51.170.85
The Presentation layer makes sure that data is in a readable format for the Application layer.