A network administrator has received complaints that users on a local LAN can retrieve e-mail from a remote e-mail server but are unable to open web pages on the same server. Services at which two layers of the OSI model should be investigated during the troubleshooting process? (Choose two.)

IT Questions Bank › Category: CCNA 4 v4 › A network administrator has received complaints that users on a local LAN can retrieve e-mail from a remote e-mail server but are unable to open web pages on the same server. Services at which two layers of the OSI model should be investigated during the troubleshooting process? (Choose two.)

physical layer
data link layer
network layer
transport layer
application layer

Exam with this question: CCNA Exploration 4: EWAN Chapter 8 Exam