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. This device can measure the distance to a remote network.
11000000.10101000.00001010.00001111
RJ45 UTP rolled cable.
Router
Transport

2. Which layer segments and reassembles data into a data stream?
The Network layer creates packets out of segments handed down from the Transport layer.
Transport
Source and destination MAC address and FCS field
10101100.00010000.00010100.00110111

3. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Hub and repeater
Fiber-opticcable
198.211.57.209
RJ45 UTP rolled cable.

4. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
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.
132.210.184.166
183/B7

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

6. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
The Transport layer segments user data.
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.
Transport
Data Link (LLC sublayer)

7. Which layer is represented by packets?
Decrease the window size.
Data Link
The Network layer creates packets out of segments handed down from the Transport layer.
3 - 2 - 1 - none

8. This layer creates a virtual circuit before transmitting between two end stations.
Switch to switch - host to host - switch to host
Network
Hub
Transport

9. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
The Network layer provides routing through an internetwork and logical addressing.
The Data Link layer is responsible for the framing of data packets.
Bridge or switch
The Physical layer is responsible for the electrical and mechanical connections between devices.

10. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
Decrease the window size.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
00001010.00001011.00001100.01100011

11. This layer uses service access points.
48 bits (6 bytes)
Data Link (LLC sublayer)
Layer 4
10101100.00010000.00010100.00110111

12. Name three types of connections that can use full duplex.
3 - 2 - 1 - none
11000000.10101000.00001010.00001111
The Network layer provides logical addressing - typically IP addressing and routing.
Switch to switch - host to host - switch to host

13. Which layer is represented by bits?
Data Link
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
132.210.184.166
Transport

14. This device uses hardware addresses to filter a network.
Network
Bridge or switch
Switch to switch - host to host - switch to host
3 - 2 - 1 - none

15. Convert 10.11.12.99 to binary format.
To provide a means for the receiver to govern the amount of data sent by the sender.
Buffering - windowing - congestion avoidance
00001010.00001011.00001100.01100011
CA:F5:83:EB

16. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Network layer provides routing through an internetwork and logical addressing.
Data - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.
Bridge or switch

17. Which layer is represented by segments?
Network
3 - 2 - 1 - none
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.

18. This device sends and receives information about 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
3 - 2 - 1 - none
Router
Hub and repeater

19. This device can never run full duplex.
10101100.00010000.00010100.00110111
RJ45 UTP crossover cable.
Hub
The Session layer sets up - maintains - and terminates sessions between applications.

20. Logical addressing is used at this layer.
Transport
Network
Transport
Data - segment - packet - frame - bit

21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Segments - packets - frames - bits
Network
The Session layer creates sessions between different hosts' applications.
183/B7

22. 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.
Transport
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.

23. What type of RJ45 UTP cable is used between switches?
RJ45 UTP crossover cable.
Hub and repeater
RJ45 UTP rolled cable.
Data Link & Physical

24. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
RJ45 UTP crossover cable.
The Session layer sets up - maintains - and terminates sessions between applications.
3 - 2 - 1 - none
132.210.184.166

25. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
198.211.57.209
The Session layer sets up - maintains - and terminates sessions between applications.
CA:F5:83:EB
Transport

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
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 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).
Decrease the window size.

27. 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 Data Link layer is responsible for the framing of data packets.
Hub
Network
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

28. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
The Data Link layer frames packets received from the Network layer.
Segments - packets - frames - bits
To provide a means for the receiver to govern the amount of data sent by the sender.
Fiber-opticcable

29. Which of the following are 3 common types of flow control?
Transport
Source and destination MAC address and FCS field
Buffering - windowing - congestion avoidance
198.211.57.209

30. This device creates many smaller collision domains - but the network is still one large broadcast domain.
Switch or bridge
Data Link (LLC sublayer)
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.
Router

31. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
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 Link (LLC sublayer)
The Physical layer is responsible for the electrical and mechanical connections between devices.
Hub and repeater

32. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Hub and repeater
10101100.00010000.00010100.00110111
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
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.

33. 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 Transport layer user virtual circuits to create a reliable connection between two hosts.
CA:F5:83:EB
Transport
Source and destination MAC address and FCS field

34. Why does the data communication industry use the layered OSI reference model? (Name two)
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76
Transport
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.

35. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
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
3 - 2 - 1 - none
Packet switching - Packet filtering - Internetwork communication - Path selection

36. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
Data - segment - packet - frame - bit
Packet switching - Packet filtering - Internetwork communication - Path selection
3 - 2 - 1 - none
The Presentation layer makes sure that data is in a readable format for the Application layer.

37. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
RJ45 UTP rolled cable.
Network
The Network layer creates packets out of segments handed down from the Transport layer.
Router

38. Convert 192.168.10.15 to binary format.
The Session layer creates sessions between different hosts' applications.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Source and destination MAC address and FCS field
11000000.10101000.00001010.00001111

39. Ethernet is defined at these layers.
Decrease the window size.
Router
Data Link & Physical
198.211.57.209

40. Which layer provides logical addressing that routers will use for path determination?
Network
RJ45 UTP rolled cable.
Transport
The Network layer provides logical addressing - typically IP addressing and routing.

41. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
Bridge or switch
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
198.211.57.209
132.210.184.166

42. At which layer is routing implemented - enabling connections and path selection between two end systems?
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
Bridge or switch
The Network layer provides routing through an internetwork and logical addressing.
Router

43. Which two fields are contained within an IEEE Ethernet frame header?
Source and destination MAC address and FCS field
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link
Hub and repeater

44. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
The Data Link layer frames packets received from the Network layer.
The Transport layer segments user data.
84:D2:43:B3
The Session layer creates sessions between different hosts' applications.

45. When data is encapsulated - which is the correct order?
Network
3 - 2 - 1 - none
Data - segment - packet - frame - bit
The Presentation layer makes sure that data is in a readable format for the Application layer.

46. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
The Network layer provides routing through an internetwork and logical addressing.
The Transport layer segments user data.
Decrease the window size.
Layer 4

47. This layer supports flow control and sequencing.
Data Link & Physical
132.210.184.166
Transport
204.51.170.85

48. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
84:D2:43:B3
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

49. What is the purpose of flow control?
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
To provide a means for the receiver to govern the amount of data sent by the sender.
10101100.00010000.00010100.00110111
RJ45 UTP rolled cable.

50. Which layer specifies voltage - wire speed - and pinout cables and moves bits between devices?
11000000.10101000.00001010.00001111
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Decrease the window size.