SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
Search
Test your basic knowledge |
Cisco Certification Data Encapsulation
Start Test
Study First
Subjects
:
cisco
,
it-skills
Instructions:
Answer 24 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 is the short description of the encapsulation process?
Converts the frames into bits for transmission across the transmission media
Source & Destination Ports
Upper layers--data - Transport layer--segments - Network layer--packets containing logical addresses - Data Link layer--framing that adds physical addresses - Physical layer--bits
Frames
2. What is data called after the Source and Destination 'IP addresses' are added at layer 3 (Network)?
Prepare the data to be sent through the network
1st level of encapsulation - breaks the data into pieces called segments - adding sequencing and control information
Packet
Segment
3. In an OSI context what happens to a PDU that is being recieved?
4. What gets added to the service data unit at the Data Link layer?
Data
Source and Destination MAC address
Source and Destination 'MAC addresses'
Upper layers--data - Transport layer--segments - Network layer--packets containing logical addresses - Data Link layer--framing that adds physical addresses - Physical layer--bits
5. What is a SDU (Service Data Unit)?
Converts the segments into packets - adding logical network and device addresses i.e. the PDU is encapsulated with the Source and Destination 'IP addresses'
It is a unit of data that has been passed down from an OSI layer to a lower layer and that has not yet been encapsulated into a protocol data unit (PDU) by the lower layer.
Prepare the data to be sent through the network
Segments
6. What is data called after the Source and Destination 'MAC addresses' are added at layer 2 (Data Link)?
1st level of encapsulation - breaks the data into pieces called segments - adding sequencing and control information
Segment
Frames
Segments
7. What happens to the PDU at layer 3 (Network)?
8. What is data called after a Header is added?
Data
Segment
Source & Destination Ports
Layer 2
9. In general What are the responsibility of the upper layers?
Prepare the data to be sent through the network
Source and Destination 'MAC addresses'
1.The Layer 1 (Physical Layer) PDU is the bit or - more generally - symbol (can also been seen as 'stream') 2.The Layer 2 (Data Link Layer) PDU is the 'Frame' 3.The Layer 3 (Network Layer) PDU is the 'Packet' 4.The Layer 4 (Transport Layer) PDU is th
Converts the packets into frames - adding physical device addressing information i.e.the PDU is encapsulated with the Source and Destination 'MAC addresses'
10. What is the process called at the receiving Host?
Source and Destination 'MAC addresses'
Source & Destination Ports
Decapsulation
Converts the frames into bits for transmission across the transmission media
11. What is Service Data Unit (SDU) comsidered in layers 5 -6 &7?
Converts the packets into frames - adding physical device addressing information i.e.the PDU is encapsulated with the Source and Destination 'MAC addresses'
Source and Destination IP address
It is a unit of data that has been passed down from an OSI layer to a lower layer and that has not yet been encapsulated into a protocol data unit (PDU) by the lower layer.
Data
12. What is the layer 4 (Transport) control information that is added to the Header?
Layer 2
Source & Destination Ports
1.The Layer 1 (Physical Layer) PDU is the bit or - more generally - symbol (can also been seen as 'stream') 2.The Layer 2 (Data Link Layer) PDU is the 'Frame' 3.The Layer 3 (Network Layer) PDU is the 'Packet' 4.The Layer 4 (Transport Layer) PDU is th
Decapsulation
13. What is a PDU (Protocol Data Unit)?
Converts the packets into frames - adding physical device addressing information i.e.the PDU is encapsulated with the Source and Destination 'MAC addresses'
In a layered system - a unit of data which is specified in a protocol of a given layer and which consists of protocol-control information and possibly user data of that layer
Converts the frames into bits for transmission across the transmission media
Frames
14. What is the layer 2 (Data Link) control information that is added to the Header?
15. What is the layer 3 (Network) control information that is added to the Header?
16. What gets added to the service data unit at the Network layer?
Source and Destination IP address
Converts the frames into bits for transmission across the transmission media
Source and Destination 'MAC addresses'
It is a unit of data that has been passed down from an OSI layer to a lower layer and that has not yet been encapsulated into a protocol data unit (PDU) by the lower layer.
17. Which OSI model layer uses service data units called frames?
Layer 2
Data
Decapsulation
A message (Protocol data unit) exchanged between MAC entities in a communication system based on the layered OSI model.
18. Where does the process of data encapsulation start?
It is a unit of data that has been passed down from an OSI layer to a lower layer and that has not yet been encapsulated into a protocol data unit (PDU) by the lower layer.
It start in the upper layers and works is way down?
4.The Layer 4 (Transport Layer) PDU is the segment for TCP connections or datagram for UDP connections 'Segment' 3.The Layer 3 (Network Layer) PDU is the 'Packet' 2.The Layer 2 (Data Link Layer) PDU is the 'Frame' 1.The Layer 1 (Physical Layer) PDU i
Source and Destination IP address
19. What happens to the PDU at layer 2(Data Link)?
20. What is a MPDU (MAC Protocol Data Unit)?
A message (Protocol data unit) exchanged between MAC entities in a communication system based on the layered OSI model.
Packet
Layer 2
1.The Layer 1 (Physical Layer) PDU is the bit or - more generally - symbol (can also been seen as 'stream') 2.The Layer 2 (Data Link Layer) PDU is the 'Frame' 3.The Layer 3 (Network Layer) PDU is the 'Packet' 4.The Layer 4 (Transport Layer) PDU is th
21. What happens to the PDU at layer 1(Physical)?
Segments
Converts the frames into bits for transmission across the transmission media
Segment
Packet
22. What happens to data at layer 4 (Transport)?
A message (Protocol data unit) exchanged between MAC entities in a communication system based on the layered OSI model.
1st level of encapsulation - breaks the data into pieces called segments - adding sequencing and control information
Packet
Source & Destination Ports
23. In an OSI context what happens to a PDU that is being Transmitted?
24. When moving from top to bottom through the OSI model layers - which comes first - packets or segments?
Data
Source & Destination Ports
Source and Destination IP address
Segments