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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. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link

2. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
3 - 2 - 1 - none
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer creates packets out of segments handed down from the Transport layer.

3. 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.
CA:F5:83:EB
Hub
The Session layer creates sessions between different hosts' applications.

4. This device can never run full duplex.
Layer 4
183/B7
Hub
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

5. 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
Switch or bridge
The Data Link layer is responsible for the framing of data packets.
48 bits (6 bytes)
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).

6. 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
10101100.00010000.00010100.00110111
183/B7
Transport

7. This layer creates a virtual circuit before transmitting between two end stations.
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
RJ45 UTP rolled cable.
Transport

8. What is the bit length and expression form of a MAC address?
10101100.00010000.00010100.00110111
48 bits (6 bytes)
Switch or bridge
Decrease the window size.

9. Which layer provides logical addressing that routers will use for path determination?
The Network layer provides logical addressing - typically IP addressing and routing.
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
Network

10. Which layer segments and reassembles data into a data stream?
183/B7
Router
Transport
3 - 2 - 1 - none

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

12. This layer supports flow control and sequencing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides routing through an internetwork and logical addressing.
Transport
Network

13. Which layer is represented by packets?
Layer 4
Hub
Decrease the window size.
The Network layer creates packets out of segments handed down from the Transport layer.

14. When data is encapsulated - which is the correct order?
Data - segment - packet - frame - bit
Transport
Decrease the window size.
Router

15. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
The Network layer provides routing through an internetwork and logical addressing.
10101100.00010000.00010100.00110111
The Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB

16. This device creates one big collision domain and one large broadcast domain.
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
Hub
The Network layer provides routing through an internetwork and logical addressing.
Transport

17. Why does the data communication industry use the layered OSI reference model? (Name two)
The Session layer creates sessions between different hosts' applications.
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 and repeater
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

18. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at 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.
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
Network

19. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
Fiber-opticcable
11000000.10101000.00001010.00001111

20. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
To create more collision domains and to add more bandwidth for users.
To provide a means for the receiver to govern the amount of data sent by the sender.
132.210.184.166
Hub and repeater

21. This device uses hardware addresses to filter a network.
Network
Data Link
RJ45 UTP crossover cable.
Bridge or switch

22. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
11000000.10101000.00001010.00001111
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.
The Data Link layer is responsible for the framing of data packets.

23. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
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 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.

24. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Data Link & Physical
Segments - packets - frames - bits
198.211.57.209
RJ45 UTP rolled cable.

25. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Switch or bridge
132.210.184.166
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
The Session layer creates sessions between different hosts' applications.

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

27. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Session layer creates sessions between different hosts' applications.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
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.

28. Which of the following are 3 common types of flow control?
D8:1B:3D:76
Switch to switch - host to host - switch to host
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

29. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
RJ45 UTP rolled cable.
Hub and repeater
00001010.00001011.00001100.01100011

30. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Packet switching - Packet filtering - Internetwork communication - Path selection
The Presentation layer makes sure that data is in a readable format for the Application layer.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

31. This device can measure the distance to a remote network.
The Data Link layer frames packets received from the Network layer.
RJ45 UTP rolled cable.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Router

32. 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?
Transport
The Network layer provides logical addressing - typically IP addressing and routing.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
CA:F5:83:EB

33. Which layer is represented by segments?
The Session layer sets up - maintains - and terminates sessions between applications.
The Transport layer segments user data.
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.

34. Name three types of connections that can use full duplex.
Switch to switch - host to host - switch to host
Transport
Layer 4
RJ45 UTP rolled cable.

35. Segmentation of a data stream happens at which layer of the OSI model?
Hub
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub and repeater
Transport

36. This device breaks up collision domains and broadcast domains.
To provide a means for the receiver to govern the amount of data sent by the sender.
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
10101100.00010000.00010100.00110111

37. 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.
The Data Link layer is responsible for the framing of data packets.
11000000.10101000.00001010.00001111
Hub and repeater

38. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Network
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).
Switch or bridge

39. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Switch to switch - host to host - switch to host
132.210.184.166
84:D2:43:B3

40. 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.
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.
Transport

41. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
204.51.170.85
The Data Link layer is responsible for the framing of data packets.
Data Link
The Data Link layer frames packets received from the Network layer.

42. Which layer is represented by bits?
Hub and repeater
Transport
Data Link & Physical
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

43. Convert 192.168.10.15 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer creates sessions between different hosts' applications.
11000000.10101000.00001010.00001111
Transport

44. Convert 10.11.12.99 to binary format.
The Data Link layer is responsible for the framing of data packets.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch or bridge
00001010.00001011.00001100.01100011

45. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Hub
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.
To create more collision domains and to add more bandwidth for users.
84:D2:43:B3

46. At which layer is routing implemented - enabling connections and path selection between two end systems?
3 - 2 - 1 - none
The Network layer creates packets out of segments handed down from the Transport layer.
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).

47. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
132.210.184.166
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
Source and destination MAC address and FCS field

48. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Buffering - windowing - congestion avoidance
Layer 4

49. 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
CA:F5:83:EB
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

50. What are two purposes for segmentation with a bridge?
Hub
CA:F5:83:EB
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.