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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. What is the bit length and expression form of a MAC address?
48 bits (6 bytes)
The Network layer creates packets out of segments handed down from the Transport layer.
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.

2. This device sends and receives information about the Network layer.
Router
84:D2:43:B3
The Session layer sets up - maintains - and terminates sessions between applications.
Hub

3. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
CA:F5:83:EB
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link
204.51.170.85

4. 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
Network
Switch or bridge
The Data Link layer frames packets received from the Network layer.

5. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Network layer provides logical addressing - typically IP addressing and routing.
The Network layer provides routing through an internetwork and logical addressing.
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.
84:D2:43:B3

6. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
183/B7
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Layer 4
The Data Link layer frames packets received from the Network layer.

7. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
To create more collision domains and to add more bandwidth for users.
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.
84:D2:43:B3

8. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Session layer creates sessions between different hosts' applications.
198.211.57.209
3 - 2 - 1 - none
204.51.170.85

9. This layer creates a virtual circuit before transmitting between two end stations.
The Session layer sets up - maintains - and terminates sessions between applications.
Hub and repeater
Switch or bridge
Transport

10. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
Segments - packets - frames - bits
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.
Switch or bridge

11. Why does the data communication industry use the layered OSI reference model? (Name two)
Router
204.51.170.85
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.
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.

12. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Data Link
Transport
204.51.170.85
To create more collision domains and to add more bandwidth for users.

13. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
Data Link
D8:1B:3D:76
3 - 2 - 1 - none
CA:F5:83:EB

14. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
132.210.184.166
The Presentation layer makes sure that data is in a readable format for the Application layer.

15. Which layer is responsible for creating - managing - and terminating sessions between applications?
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
The Data Link layer is responsible for the framing of data packets.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

16. 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.
Data - segment - packet - frame - bit
11000000.10101000.00001010.00001111

17. 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
CA:F5:83:EB
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 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.

18. At which layer is routing implemented - enabling connections and path selection between two end systems?
Layer 4
The Network layer provides routing through an internetwork and logical addressing.
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.

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

20. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
10101100.00010000.00010100.00110111
198.211.57.209
Segments - packets - frames - bits

21. This device can measure the distance to a remote network.
Network
To create more collision domains and to add more bandwidth for users.
00001010.00001011.00001100.01100011
Router

22. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
00001010.00001011.00001100.01100011
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.
Fiber-opticcable
183/B7

23. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub and repeater
The Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link & Physical
CA:F5:83:EB

24. Name four router functions.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Router
48 bits (6 bytes)
Packet switching - Packet filtering - Internetwork communication - Path selection

25. Convert 10.11.12.99 to binary format.
3 - 2 - 1 - none
00001010.00001011.00001100.01100011
Segments - packets - frames - bits
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

26. This device breaks up collision domains and broadcast domains.
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Network

27. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
198.211.57.209
Segments - packets - frames - bits
183/B7

28. 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.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Network
The Session layer creates sessions between different hosts' applications.

29. Which layer is represented by packets?
10101100.00010000.00010100.00110111
Source and destination MAC address and FCS field
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge

30. This device uses hardware addresses to filter a network.
Bridge or switch
Data - segment - packet - frame - bit
Transport
Source and destination MAC address and FCS field

31. What is the purpose of flow control?
204.51.170.85
Fiber-opticcable
To provide a means for the receiver to govern the amount of data sent by the sender.
Data Link & Physical

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?
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.
The Network layer creates packets out of segments handed down from the Transport layer.
Hub

33. When data is encapsulated - which is the correct order?
11000000.10101000.00001010.00001111
D8:1B:3D:76
84:D2:43:B3
Data - segment - packet - frame - bit

34. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Hub and repeater
Bridge or switch

35. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
Transport

36. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Transport
198.211.57.209

37. Convert 192.168.10.15 to binary format.
Hub
Switch or bridge
11000000.10101000.00001010.00001111
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

38. Which layer provides logical addressing that routers will use for path determination?
198.211.57.209
The Network layer provides logical addressing - typically IP addressing and routing.
D8:1B:3D:76
Switch to switch - host to host - switch to host

39. This layer uses service access points.
204.51.170.85
48 bits (6 bytes)
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 Link (LLC sublayer)

40. Segmentation of a data stream happens at which layer of the OSI model?
Data Link
Transport
Switch to switch - host to host - switch to host
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).

41. 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
The Data Link layer is responsible for the framing of data packets.
Hub
Decrease the window size.

42. Ethernet is defined at these layers.
Layer 4
Data - segment - packet - frame - bit
Data Link & Physical
00001010.00001011.00001100.01100011

43. Convert 172.16.20.55 to binary format.
Hub and repeater
132.210.184.166
10101100.00010000.00010100.00110111
The Presentation layer makes sure that data is in a readable format for the Application layer.

44. This layer supports flow control and sequencing.
The Presentation layer makes sure that data is in a readable format for the Application layer.
Transport
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.

45. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Transport
Fiber-opticcable
The Transport layer segments user data.
Layer 4

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

47. Which two fields are contained within an IEEE Ethernet frame header?
The Network layer provides routing through an internetwork and logical addressing.
Source and destination MAC address and FCS field
48 bits (6 bytes)
Data Link & Physical

48. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Network
Transport
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.

49. Which layer segments and reassembles data into a data stream?
The Transport layer segments user data.
Transport
To create more collision domains and to add more bandwidth for users.
Buffering - windowing - congestion avoidance

50. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
To create more collision domains and to add more bandwidth for users.
Fiber-opticcable
RJ45 UTP rolled cable.
Data Link