A network technician is troubleshooting an issue routing TCP packets to an email server.
At which of the following OSI layers is the issue occurring?
A.
Layer 1 " Physical B.
Layer 3 " Network C.
Layer 4 " Transport D.
Layer 7 " Application.
C.
A network technician is troubleshooting an issue routing TCP packets to an email server.
At which of the following OSI layers is the issue occurring?
A.
Layer 1 " Physical
B.
Layer 3 " Network
C.
Layer 4 " Transport
D.
Layer 7 " Application.
C.
The issue with routing TCP packets to an email server can occur at multiple OSI layers, but based on the given options, the issue is most likely occurring at Layer 4 "Transport".
Layer 1 "Physical" deals with physical transmission of data, such as cabling, connectors, and signaling. If there was an issue at this layer, it would likely result in a complete loss of connectivity between the devices.
Layer 3 "Network" deals with logical addressing and routing of data between different networks. If there was an issue at this layer, it could result in the inability to reach the email server, but it would not specifically affect TCP packets.
Layer 4 "Transport" deals with the reliable transmission of data between two endpoints, using protocols such as TCP and UDP. If there was an issue at this layer, it could result in the TCP packets not being able to establish a connection to the email server.
Layer 7 "Application" deals with the actual applications and services running on the network, such as email clients and servers. If there was an issue at this layer, it could affect the ability of the email client or server to communicate, but it would not specifically affect TCP packets.
Therefore, based on the given options, the most likely OSI layer at which the issue is occurring is Layer 4 "Transport".