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. You have the following binary number: 10110111 - What are the decimal and hexadecimal equivalents?
The Data Link layer is responsible for the framing of data packets.
Network
Router
183/B7


2. This layer uses service access points.
Data Link (LLC sublayer)
Data Link & Physical
Transport
The Data Link layer is responsible for the framing of data packets.


3. Which of the following are 3 common types of flow control?
The Transport layer segments user data.
Buffering - windowing - congestion avoidance
The Network layer provides routing through an internetwork and logical addressing.
Network


4. This layer creates a virtual circuit before transmitting between two end stations.
Transport
Buffering - windowing - congestion avoidance
Segments - packets - frames - bits
Hub


5. This device uses hardware addresses to filter a network.
Bridge or switch
The Physical layer is responsible for the electrical and mechanical connections between devices.
The Network layer provides logical addressing - typically IP addressing and routing.
Transport


6. 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.
The Session layer creates sessions between different hosts' applications.
3 - 2 - 1 - none
The Data Link layer is responsible for the framing of data packets.


7. Which layer is represented by packets?
The Data Link layer frames packets received from the Network layer.
The Network layer creates packets out of segments handed down from the Transport layer.
Data Link (LLC sublayer)
To provide a means for the receiver to govern the amount of data sent by the sender.


8. You want to implement a network medium that is not susceptible to EMI. Which type of cabling should you use?
Router
Fiber-opticcable
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).


9. Which layer 1 devices can be used to enlarge the area covered by a single LAN segment?
Data Link (LLC sublayer)
The Transport layer segments user data.
RJ45 UTP rolled cable.
Hub and repeater


10. 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?
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.
Router
Segments - packets - frames - bits
Buffering - windowing - congestion avoidance


11. What type of RJ45 UTP cable is used between switches?
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.
00001010.00001011.00001100.01100011
Packet switching - Packet filtering - Internetwork communication - Path selection


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


13. Which layer is represented by segments?
Fiber-opticcable
Data - segment - packet - frame - bit
The Transport layer segments user data.
Layer 4


14. Convert 11000110.11010011.00111001.11010001 to decimal IP format.
198.211.57.209
Source and destination MAC address and FCS field
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 sets up - maintains - and terminates sessions between applications.


15. Convert 10000100.11010010.01000011.10110011 to hexadecimal format.
D8:1B:3D:76
3 - 2 - 1 - none
Network
84:D2:43:B3


16. Convert 10.11.12.99 to binary format.
00001010.00001011.00001100.01100011
The Data Link layer is responsible for the framing of data packets.
Source and destination MAC address and FCS field
Transport


17. What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port?
Hub
Packet switching - Packet filtering - Internetwork communication - Path selection
RJ45 UTP rolled cable.
Data Link


18. Ethernet is defined at these layers.
Transport
Router
Data Link & Physical
The Presentation layer makes sure that data is in a readable format for the Application layer.


19. Which layer is responsible for creating - managing - and terminating sessions between applications?
The Session layer creates sessions between different hosts' applications.
The Session layer sets up - maintains - and terminates sessions between applications.
The Network layer provides logical addressing - typically IP addressing and routing.
10101100.00010000.00010100.00110111


20. This device breaks up collision domains and broadcast domains.
Switch or bridge
Router
198.211.57.209
Transport


21. Put the following in order of encapsulation: Packets - Frames - Bits - Segments
The Transport layer user virtual circuits to create a reliable connection between two hosts.
The Physical layer is responsible for the electrical and mechanical connections between devices.
Segments - packets - frames - bits
RJ45 UTP rolled cable.


22. Which layer combines bits into bytes and bytes into frames - uses MAC addressing - and provides error detection?
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 Physical layer is responsible for the electrical and mechanical connections between devices.
Data Link & Physical
The Data Link layer is responsible for the framing of data packets.


23. How does a host on an Ethernet LAN know when to transmit after a collision has occurred? (Name two)
00001010.00001011.00001100.01100011
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
RJ45 UTP rolled cable.
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.


24. Routers operate at layer __. LAN switches operate at layer __. Ethernet hubs operate at layer __. Word processing operates at layer __.
3 - 2 - 1 - none
Network
Bridge or switch
The Presentation layer makes sure that data is in a readable format for the Application layer.


25. Which layer manages device addressing - tracks the location of devices on the network - and determines the best way to move data?
Hub and repeater
Network
Router
The Session layer creates sessions between different hosts' applications.


26. Which two fields are contained within an IEEE Ethernet frame header?
Router
Data Link & Physical
Source and destination MAC address and FCS field
Switch or bridge


27. Segmentation of a data stream happens at which layer of the OSI model?
Packet switching - Packet filtering - Internetwork communication - Path selection
Transport
To provide a means for the receiver to govern the amount of data sent by the sender.
The Session layer sets up - maintains - and terminates sessions between applications.


28. This device can measure the distance to a remote network.
204.51.170.85
Router
Segments - packets - frames - bits
RJ45 UTP crossover cable.


29. This device sends and receives information about the Network layer.
D8:1B:3D:76
The Network layer creates packets out of segments handed down from the Transport layer.
The Session layer creates sessions between different hosts' applications.
Router


30. Convert 11001010.11110101.10000011.11101011 to hexadecimal format.
Switch to switch - host to host - switch to host
The Physical layer is responsible for the electrical and mechanical connections between devices.
CA:F5:83:EB
PDUs at the Data Link layer are called frames. AS soon as you see frame in a question - you know the answer.


31. What is the purpose of flow control?
Data Link
Network
Router
To provide a means for the receiver to govern the amount of data sent by the sender.


32. Convert 192.168.10.15 to binary format.
Source and destination MAC address and FCS field
Router
11000000.10101000.00001010.00001111
Hub and repeater


33. What are two unique characteristics of half-duplex Ethernet when compared to full-duplex Ethernet?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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 is responsible for transporting 1s and 0s in a digital signal.
84:D2:43:B3


34. Which layer is responsible for converting data packets from the Data Link layer into electrical signals?
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
Switch to switch - host to host - switch to host
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.


35. 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?
48 bits (6 bytes)
Decrease the window size.
3 - 2 - 1 - none
Hub


36. This device can never run full duplex.
Data - segment - packet - frame - bit
Hub
Layer 4
The Network layer provides logical addressing - typically IP addressing and routing.


37. 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 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.
The Network layer creates packets out of segments handed down from the Transport layer.
Segments - packets - frames - bits


38. When data is encapsulated - which is the correct order?
The Data Link layer frames packets received from the Network layer.
Buffering - windowing - congestion avoidance
Data - segment - packet - frame - bit
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


39. Logical addressing is used at this layer.
The Data Link layer frames packets received from the Network layer.
Hub
To create more collision domains and to add more bandwidth for users.
Network


40. Convert 10000100.11010010.10111000.10100110 to decimal IP format.
Hub
132.210.184.166
84:D2:43:B3
RJ45 UTP crossover cable.


41. Convert 11011000.00011011.00111101.01110110 to hexadecimal format.
3 - 2 - 1 - none
Bridge or switch
Hub and repeater
D8:1B:3D:76


42. Which layer defines how data is formatted - presented - encoded - and converted for use on the network?
The Presentation layer makes sure that data is in a readable format for the Application layer.
00001010.00001011.00001100.01100011
11000000.10101000.00001010.00001111
Transport


43. Which layer provides the physical transmission of the data and handles error notification - network topology - and flow control?
Network
Data Link
The Network layer provides logical addressing - typically IP addressing and routing.
Data - segment - packet - frame - bit


44. What is the bit length and expression form of a MAC address?
Router
The Network layer creates packets out of segments handed down from the Transport layer.
RJ45 UTP crossover cable.
48 bits (6 bytes)


45. Name four router functions.
D8:1B:3D:76
Layer 4
Buffering - windowing - congestion avoidance
Packet switching - Packet filtering - Internetwork communication - Path selection


46. Which layer segments and reassembles data into a data stream?
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
Hub and repeater
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.


47. Name three types of connections that can use full duplex.
To create more collision domains and to add more bandwidth for users.
48 bits (6 bytes)
Bridge or switch
Switch to switch - host to host - switch to host


48. Convert 172.16.20.55 to binary format.
Half-duplex Ethernet operates in a shared collision domain. Half-duplex Ethernet has lower effective throughput.
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.
10101100.00010000.00010100.00110111
To create more collision domains and to add more bandwidth for users.


49. Convert 11001100.00110011.10101010.01010101 to decimal IP format.
3 - 2 - 1 - none
204.51.170.85
D8:1B:3D:76
To create more collision domains and to add more bandwidth for users.


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