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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. Which two fields are contained within an IEEE Ethernet frame header?
48 bits (6 bytes)
Decrease the window size.
Source and destination MAC address and FCS field
Hub

2. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
Fiber-opticcable
Transport
132.210.184.166

3. 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 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.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
CA:F5:83:EB

4. Convert 172.16.20.55 to binary format.
10101100.00010000.00010100.00110111
Data Link
Router
Hub and repeater

5. Name four router functions.
Packet switching - Packet filtering - Internetwork communication - Path selection
Layer 4
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 Session layer sets up - maintains - and terminates sessions between applications.

6. 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
Transport
Hub

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

8. This device can never run full duplex.
Data Link
Source and destination MAC address and FCS field
The Network layer provides routing through an internetwork and logical addressing.
Hub

9. Which layer is represented by packets?
The Data Link layer is responsible for the framing of data packets.
The Network layer creates packets out of segments handed down from the Transport layer.
183/B7
84:D2:43:B3

10. What is the purpose of 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.
Transport
198.211.57.209
To provide a means for the receiver to govern the amount of data sent by the sender.

11. 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
3 - 2 - 1 - none
132.210.184.166
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).

12. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Fiber-opticcable
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Hub and repeater
The Session layer sets up - maintains - and terminates sessions between applications.

13. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
CA:F5:83:EB
48 bits (6 bytes)
Data Link & Physical
Network

14. This layer supports flow control and sequencing.
Segments - packets - frames - bits
Transport
The Network layer provides routing through an internetwork and logical addressing.
D8:1B:3D:76

15. Segmentation of a data stream happens at which layer of the OSI model?
204.51.170.85
Transport
183/B7
The Session layer creates sessions between different hosts' applications.

16. Which layer is represented by bits?
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
Data Link
Fiber-opticcable
Data Link & Physical

17. 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.
The Transport layer segments user data.
Hub
RJ45 UTP crossover cable.

18. Which of the following are 3 common types of flow control?
Switch or bridge
The Session layer sets up - maintains - and terminates sessions between applications.
Transport
Buffering - windowing - congestion avoidance

19. Acknowledgments - sequencing - and flow control are characteristics of which OSI layer?
10101100.00010000.00010100.00110111
Layer 4
Data Link (LLC sublayer)
Data Link

20. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
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).
Router
Transport
198.211.57.209

21. When data is encapsulated - which is the correct order?
Data Link & Physical
The Data Link layer is responsible for the framing of data packets.
Data - segment - packet - frame - bit
Hub

22. This device uses hardware addresses to filter a network.
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
132.210.184.166
Bridge or switch

23. What are two purposes for segmentation with a bridge?
To create more collision domains and to add more bandwidth for users.
11000000.10101000.00001010.00001111
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
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. Which layer is represented by frames?
Buffering - windowing - congestion avoidance
CA:F5:83:EB
The Data Link layer frames packets received from the Network layer.
The Session layer sets up - maintains - and terminates sessions between applications.

25. This device breaks up collision domains and broadcast domains.
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
Transport
183/B7

26. Name three types of connections that can use full duplex.
Transport
The Physical layer is responsible for the electrical and mechanical connections between devices.
Switch to switch - host to host - switch to host
The Data Link layer frames packets received from the Network layer.

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 Session layer creates sessions between different hosts' applications.
Hub and repeater
Transport
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.

28. Which layer is responsible for creating - managing - and terminating sessions between applications?
Packet switching - Packet filtering - Internetwork communication - Path selection
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 - segment - packet - frame - bit
The Session layer sets up - maintains - and terminates sessions between applications.

29. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
183/B7
The Session layer sets up - maintains - and terminates sessions between applications.
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.
48 bits (6 bytes)

30. Convert 192.168.10.15 to binary format.
Switch or bridge
11000000.10101000.00001010.00001111
The Network layer provides routing through an internetwork and logical addressing.
The Network layer creates packets out of segments handed down from the Transport layer.

31. Which layer provides logical addressing that routers will use for path determination?
Router
The Network layer provides logical addressing - typically IP addressing and routing.
The Session layer sets up - maintains - and terminates sessions between applications.
Transport

32. What is the bit length and expression form of a MAC address?
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.
Router
48 bits (6 bytes)

33. This device can measure the distance to a remote network.
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.
Router
Network

34. This device creates one big collision domain and one large broadcast domain.
Hub
The Network layer provides routing through an internetwork and logical addressing.
The Network layer provides logical addressing - typically IP addressing and routing.
Layer 4

35. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
198.211.57.209
Transport
The Presentation layer makes sure that data is in a readable format for the Application layer.
Network

36. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
Transport
84:D2:43:B3
CA:F5:83:EB
Data Link

37. This layer creates a virtual circuit before transmitting between two end stations.
The Network layer provides routing through an internetwork and logical addressing.
Transport
Packet switching - Packet filtering - Internetwork communication - Path selection
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.

38. What type of RJ45 UTP cable is used between switches?
RJ45 UTP rolled cable.
The Session layer creates sessions between different hosts' applications.
RJ45 UTP crossover cable.
Packet switching - Packet filtering - Internetwork communication - Path selection

39. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
Router
00001010.00001011.00001100.01100011
Data Link & Physical
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

40. This layer uses service access points.
Switch to switch - host to host - switch to host
D8:1B:3D:76
Data Link (LLC sublayer)
Transport

41. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Router
The Data Link layer frames packets received from the Network layer.
3 - 2 - 1 - none
Hub and repeater

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

43. 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.
11000000.10101000.00001010.00001111
RJ45 UTP crossover cable.
Fiber-opticcable

44. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Hub
Data Link & Physical
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Data Link

45. 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 segments user data.
The Transport layer user virtual circuits to create a reliable connection between two hosts.
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.

46. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
Router
The Data Link layer is responsible for the framing of data packets.
Layer 4
Segments - packets - frames - bits

47. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
RJ45 UTP crossover cable.
Fiber-opticcable
Segments - packets - frames - bits
Packet switching - Packet filtering - Internetwork communication - Path selection

48. Logical addressing is used at this layer.
Segments - packets - frames - bits
Transport
183/B7
Network

49. This device sends and receives information about the Network layer.
D8:1B:3D:76
The Physical layer is responsible for transporting 1s and 0s in a digital signal.
To provide a means for the receiver to govern the amount of data sent by the sender.
Router

50. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
D8:1B:3D:76
The Session layer sets up - maintains - and terminates sessions between applications.
Packet switching - Packet filtering - Internetwork communication - Path selection
183/B7