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. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
84:D2:43:B3
RJ45 UTP rolled cable.
132.210.184.166
Transport

2. What is the purpose of flow control?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
To provide a means for the receiver to govern the amount of data sent by the sender.
RJ45 UTP rolled cable.
Router

3. This device can measure the distance to a remote network.
Decrease the window size.
Router
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

4. When data is encapsulated - which is the correct order?
Transport
Segments - packets - frames - bits
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data - segment - packet - frame - bit

5. Logical addressing is used at this layer.
Network
The Network layer provides routing through an internetwork and logical addressing.
11000000.10101000.00001010.00001111
Fiber-opticcable

6. 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link & Physical
Hub and repeater

7. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Transport layer segments user data.
The Data Link layer frames packets received from the Network layer.

8. Which layer is represented by packets?
Data Link (LLC sublayer)
10101100.00010000.00010100.00110111
The Network layer creates packets out of segments handed down from the Transport layer.
00001010.00001011.00001100.01100011

9. 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?
Data Link & Physical
198.211.57.209
The Transport layer user virtual circuits to create a reliable connection between two hosts.
Segments - packets - frames - bits

10. Which layer is responsible for creating - managing - and terminating sessions between applications?
84:D2:43:B3
3 - 2 - 1 - none
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.

11. What is the bit length and expression form of a MAC address?
Hub
48 bits (6 bytes)
Router
Fiber-opticcable

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

13. What type of RJ45 UTP cable is used between switches?
The Network layer provides routing through an internetwork and logical addressing.
RJ45 UTP crossover cable.
183/B7
The Data Link layer is responsible for the framing of data packets.

14. 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?
Layer 4
183/B7
Decrease the window size.
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).

15. This device creates one big collision domain and one large broadcast domain.
Network
Source and destination MAC address and FCS field
Hub
The Presentation layer makes sure that data is in a readable format for the Application layer.

16. Which layer is represented by bits?
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.
3 - 2 - 1 - none
00001010.00001011.00001100.01100011

17. This layer uses service access points.
Buffering - windowing - congestion avoidance
The Network layer provides logical addressing - typically IP addressing and routing.
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).
Data Link (LLC sublayer)

18. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
10101100.00010000.00010100.00110111
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.
The Presentation layer makes sure that data is in a readable format for the Application layer.

19. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
132.210.184.166
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
RJ45 UTP rolled cable.

20. Ethernet is defined at these layers.
Packet switching - Packet filtering - Internetwork communication - Path selection
Data Link & Physical
Fiber-opticcable
The Physical layer is responsible for the electrical and mechanical connections between devices.

21. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
To provide a means for the receiver to govern the amount of data sent by the sender.
The Data Link layer is responsible for the framing of data packets.
Data Link & Physical
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.

22. Which layer is represented by frames?
Source and destination MAC address and FCS field
Fiber-opticcable
The Data Link layer frames packets received from the Network layer.
RJ45 UTP rolled cable.

23. Segmentation of a data stream happens at which layer of the OSI model?
00001010.00001011.00001100.01100011
Fiber-opticcable
RJ45 UTP rolled cable.
Transport

24. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
84:D2:43:B3
Network

25. This layer supports flow control and sequencing.
Transport
198.211.57.209
00001010.00001011.00001100.01100011
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

26. 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
The Data Link layer frames packets received from the Network layer.
Fiber-opticcable
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).
Network

27. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
00001010.00001011.00001100.01100011
Network
The Data Link layer is responsible for the framing of data packets.
Fiber-opticcable

28. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
The Network layer provides logical addressing - typically IP addressing and routing.
Buffering - windowing - congestion avoidance
Hub and repeater

29. This device uses hardware addresses to filter a network.
Transport
Bridge or switch
Hub
RJ45 UTP rolled cable.

30. Which layer is represented by segments?
CA:F5:83:EB
Data Link
The Transport layer segments user data.
RJ45 UTP rolled cable.

31. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
Fiber-opticcable
Data Link
3 - 2 - 1 - none
Source and destination MAC address and FCS field

32. 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.
Router
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub

33. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
Data Link (LLC sublayer)
The Data Link layer is responsible for the framing of data packets.
204.51.170.85
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).

34. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Segments - packets - frames - bits
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 Presentation layer makes sure that data is in a readable format for the Application layer.
Network

35. Which layer provides logical addressing that routers will use for path determination?
Switch to switch - host to host - switch to host
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).
The Network layer provides logical addressing - typically IP addressing and routing.

36. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Bridge or switch
Router
Data Link
The Presentation layer makes sure that data is in a readable format for the Application layer.

37. Which of the following are 3 common types of flow control?
84:D2:43:B3
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.
Data Link & Physical

38. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Transport
183/B7
Buffering - windowing - congestion avoidance
198.211.57.209

39. This device breaks up collision domains and broadcast domains.
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
Router

40. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
To create more collision domains and to add more bandwidth for users.
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
183/B7
Hub

41. Which two fields are contained within an IEEE Ethernet frame header?
Hub
Source and destination MAC address and FCS field
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 is responsible for the electrical and mechanical connections between devices.

42. Convert 10.11.12.99 to binary format.
Transport
183/B7
00001010.00001011.00001100.01100011
Buffering - windowing - congestion avoidance

43. This device can never run full duplex.
Hub and repeater
11000000.10101000.00001010.00001111
Hub
The Network layer creates packets out of segments handed down from the Transport layer.

44. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Transport
The Data Link layer frames packets received from the Network layer.
CA:F5:83:EB
Hub

45. 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?
Router
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.
Bridge or switch

46. Name three types of connections that can use full duplex.
Hub and repeater
84:D2:43:B3
Switch to switch - host to host - switch to host
Data Link & Physical

47. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Segments - packets - frames - bits
Router
Hub
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

48. Name four router functions.
11000000.10101000.00001010.00001111
Packet switching - Packet filtering - Internetwork communication - Path selection
Segments - packets - frames - bits
Router

49. What are two purposes for segmentation with a bridge?
Switch to switch - host to host - switch to host
84:D2:43:B3
48 bits (6 bytes)
To create more collision domains and to add more bandwidth for users.

50. Which layer segments and reassembles data into a data stream?
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).
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
Transport