1-3 LT

Question 1

Which three acronyms/initialisms represent standards organizations? (Choose three.)

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IANA

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TCP/IP

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IEEE

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IETF

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OSI

2. What type of communication will send a message to all devices on a local area network?
   -allcast
   -multicast
   -broadcast
3. In computer communication, what is the purpose of message encoding?
   - to convert info to d appropriate form of transmission
   - to interpret info
   - to brek large frames to smaller

Answer 1

1. iEE
2. IANA
3. IETF

2.1 broadcast
3. - to convert info to d appropriate form of transmission

Question 2

4. Which message delivery option is used when a**ll devices need to receive the same message simultaneously?
   **
   - all cast
   - multcast
   - broadcast
5. What are two benefits of using a layered network model? (Choose two.)
   It assists in protocol design.
   It speeds up packet delivery.
   It prevents designers from creating their own model.
   It prevents technology in one layer from affecting other layers.
   It ensures a device at one layer can function at the next higher layer.

Answer 2

4. • broadcast

5

Question 3

6. What is the purpose of protocols in data communications?
   Specifying the bandwidth of the channel or medium for each type of communication

• Specifying the device operating systems that will support the communication
• Providing the rules required for a specific type of communication to occur
• Specifying the device operating systems that will support the communication
  7. Which **logical address **is used for delivery of data to a remote network?
• Desti IP
• Source IP

Answer 3

6 - Providing the rules required for a specific type of communication to occur

7. destination IP

Question 4

What is the general term that is used to describe a piece of data at any layer of a networking model?
- frame
- packet
- pdu

Which two protocols function at the internet layer? (Choose two.)
POP
BOOTP
ICMP
IP

Answer 4

8. pdu
   9 IP n ICMP

Question 5

Which layer of the OSI model defines services to **segment and reassemble data **for individual communications between end devices?
- application
- presentatiom
- session
- transport

2. What process is used to receive transmitted data and convert it into a readable message?
   access control
   decoding
   encapsulation
   flow control

Answer 5

1- transport
2- Drcoding

Question 6

what is done to an IP packet before it is transmitted over the physical medium?

It is tagged with information guaranteeing reliable delivery.
It is segmented into smaller individual pieces.
It is encapsulated into a TCP segment.
It is encapsulated in a Layer 2 frame.

What process is used to place one message inside another message for transfer from the source to the destination?
Access control
Decoding
Encapsulation
Flow control

Answer 6

1- It is encapsulated in a Layer 2 frame.
2. Encapsulation