Practice Question and Answer
8Q: 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 and recovery; and controlling the flow of information? 1066 05b5cc7e8e4d2b41977751a9e
5b5cc7e8e4d2b41977751a9e- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
The Transport layer uses virtual circuits to create a reliable connection between two hosts.
Q: Which layer is responsible for keeping the data from different applications seperate on the network? 708 05b5cc7e8e4d2b41977751a9d
5b5cc7e8e4d2b41977751a9d- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
The session layer creates sessions between different host's applications.
Q: Which layer defines how data is formatted , presented, encoded, and converted for use on the network? 1062 05b5cc7e8e4d2b41977751a9c
5b5cc7e8e4d2b41977751a9c- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
The presentation layer makes sure that data is in a readable format for the Application layer.
Q: 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 error recovery? 2148 05b5cc7e8e4d2b41977751a9b
5b5cc7e8e4d2b41977751a9b- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
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)
Q: Which layer ensures the trustworthly 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? 1130 05b5cc7e8e4d2b41977751a9a
5b5cc7e8e4d2b41977751a9a- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
PDUs at the data link layer are called frames and provide physical addressing, plus other options to place packets on the network medium.
Q: What is the bit length and expression form of a MAC address? 1142 05b5cc7e8e4d2b41977751a99
5b5cc7e8e4d2b41977751a99- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
48 bits (6 bytes) expressed as a hexadecimal number.
Q: Differentiate a MAC address and an IP address and describe how and when each address type is used in a network? 1177 05b5cc7e8e4d2b41977751a98
5b5cc7e8e4d2b41977751a98- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
A MAC address is a hexadecimal number identifying the physical connection of a host. MAC addresses are said to operate on layer 2 of the OSI model. IP addresses, which can be expressed in binary or decimal format, are logical identifiers that are said to be on layer 3 of the OSI model. Hosts on the same physical segment locate one another with MAC addresses, while IP addresses are used when they reside on different LAN segments or subnets. Even when the hosts are in different subnets , a destination IP address will be converted to a MAC address when the packet reaches the destination network via routing.
Q: What type of RJ45 UTP cable do you use to connect a PC's COM port to a router or switch console port? 1657 05b5cc7e8e4d2b41977751a93
5b5cc7e8e4d2b41977751a93- 1Straight - throughfalse
- 2Crossover cablefalse
- 3Crossover with a CSU/DSUfalse
- 4Rolledtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Rolled"
Explanation :
Answer: D) Rolled Explanation: To connect to a router or switch console port, you would use an RJ45 UTP rolled cable.