Test your basic knowledge |

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. Ethernet is defined at these layers.
48 bits (6 bytes)
Transport
Data Link & Physical
The Transport layer segments user data.

2. Which layer is represented by frames?
Decrease the window size.
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
84:D2:43:B3

3. Convert 192.168.10.15 to binary format.
Decrease the window size.
11000000.10101000.00001010.00001111
The Presentation layer makes sure that data is in a readable format for the Application layer.
Data Link (LLC sublayer)

4. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Presentation layer makes sure that data is in a readable format for the Application layer.
Buffering - windowing - congestion avoidance
183/B7
To provide a means for the receiver to govern the amount of data sent by the sender.

5. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
198.211.57.209
Transport
RJ45 UTP rolled cable.
Hub

6. 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?
Packet switching - Packet filtering - Internetwork communication - Path selection
The Transport layer user virtual circuits to create a reliable connection between two hosts.
To provide a means for the receiver to govern the amount of data sent by the sender.
Hub

7. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
The Data Link layer frames packets received from the Network layer.
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
CA:F5:83:EB
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

8. This device uses hardware addresses to filter a network.
Hub
Transport
Bridge or switch
The Session layer sets up - maintains - and terminates sessions between applications.

9. Convert 10.11.12.99 to binary format.
Segments - packets - frames - bits
The Session layer sets up - maintains - and terminates sessions between applications.
Data Link (LLC sublayer)
00001010.00001011.00001100.01100011

10. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Switch or bridge
The Presentation layer makes sure that data is in a readable format for the Application layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

11. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
48 bits (6 bytes)
The Session layer sets up - maintains - and terminates sessions between applications.
Network

12. 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
3 - 2 - 1 - none
Fiber-opticcable
Decrease the window size.

13. This layer uses service access points.
Data Link (LLC sublayer)
Transport
Source and destination MAC address and FCS field
The Transport layer user virtual circuits to create a reliable connection between two hosts.

14. Which layer provides logical addressing that routers will use for path determination?
Data Link
Switch to switch - host to host - switch to host
Source and destination MAC address and FCS field
The Network layer provides logical addressing - typically IP addressing and routing.

15. Name three types of connections that can use full duplex.
The Session layer sets up - maintains - and terminates sessions between applications.
Switch to switch - host to host - switch to host
Network
The Network layer provides logical addressing - typically IP addressing and routing.

16. This device can never run full duplex.
84:D2:43:B3
Buffering - windowing - congestion avoidance
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub

17. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
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
48 bits (6 bytes)

18. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
132.210.184.166
D8:1B:3D:76
Hub and repeater

19. This device can measure the distance to a remote network.
Router
The Network layer provides logical addressing - typically IP addressing and routing.
84:D2:43:B3
The Data Link layer frames packets received from the Network layer.

20. Which layer is represented by bits?
Transport
CA:F5:83:EB
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

21. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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.
3 - 2 - 1 - none

22. What is the bit length and expression form of a MAC address?
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.
48 bits (6 bytes)
The Physical layer is responsible for transporting 1s and 0s in a digital signal.

23. When data is encapsulated - which is the correct order?
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater
Switch or bridge
Data - segment - packet - frame - bit

24. This device breaks up collision domains and broadcast domains.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Router
The Network layer creates packets out of segments handed down from the Transport layer.
Layer 4

25. Which layer is responsible for creating - managing - and terminating sessions between applications?
132.210.184.166
Hub and repeater
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Session layer sets up - maintains - and terminates sessions between applications.

26. Name four router functions.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.

27. Which layer is represented by segments?
Buffering - windowing - congestion avoidance
11000000.10101000.00001010.00001111
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer segments user data.

28. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Fiber-opticcable
The Network layer creates packets out of segments handed down from the Transport layer.
Switch or bridge
10101100.00010000.00010100.00110111

29. 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?
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.
00001010.00001011.00001100.01100011
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.

30. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
84:D2:43:B3
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.
Source and destination MAC address and FCS field

31. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Router
The Network layer provides routing through an internetwork and logical addressing.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

32. Which of the following are 3 common types of flow control?
The Data Link layer frames packets received from the Network layer.
Buffering - windowing - congestion avoidance
Transport
132.210.184.166

33. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Network
Buffering - windowing - congestion avoidance
CA:F5:83:EB
To create more collision domains and to add more bandwidth for users.

34. What is the purpose of flow control?
To provide a means for the receiver to govern the amount of data sent by the sender.
198.211.57.209
Hub
Hub

35. Segmentation of a data stream happens at which layer of the OSI model?
Data - segment - packet - frame - bit
Transport
10101100.00010000.00010100.00110111
Bridge or switch

36. 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.
The Network layer provides logical addressing - typically IP addressing and routing.
Router
Switch to switch - host to host - switch to host

37. Which layer segments and reassembles data into a data stream?
The Transport layer segments user data.
To create more collision domains and to add more bandwidth for users.
Transport
The Data Link layer frames packets received from the Network layer.

38. This layer creates a virtual circuit before transmitting between two end stations.
00001010.00001011.00001100.01100011
CA:F5:83:EB
To provide a means for the receiver to govern the amount of data sent by the sender.
Transport

39. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
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.
Network
Data Link & Physical

40. Which two fields are contained within an IEEE Ethernet frame header?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Source and destination MAC address and FCS field
Decrease the window size.
Data Link & Physical

41. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
The Data Link layer is responsible for the framing of data packets.
198.211.57.209
Router
11000000.10101000.00001010.00001111

42. 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
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.
198.211.57.209
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).

43. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
11000000.10101000.00001010.00001111
Router
132.210.184.166
Switch to switch - host to host - switch to host

44. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Data Link layer frames packets received from the Network layer.
The Physical layer is responsible for the electrical and mechanical connections between devices.

45. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Data Link layer frames packets received from the Network layer.
The Network layer provides routing through an internetwork and logical addressing.
204.51.170.85
Segments - packets - frames - bits

46. Logical addressing is used at this layer.
204.51.170.85
Network
Hub
Source and destination MAC address and FCS field

47. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
3 - 2 - 1 - none
84:D2:43:B3
204.51.170.85
Data Link & Physical

48. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
84:D2:43:B3
Hub
Data Link (LLC sublayer)
Layer 4

49. At which layer is routing implemented - enabling connections and path selection between two end systems?
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.
Data - segment - packet - frame - bit
Transport

50. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
204.51.170.85
The Transport layer user virtual circuits to create a reliable connection between two hosts.
RJ45 UTP rolled cable.
Buffering - windowing - congestion avoidance