Networking - MCQ Practice Questions
Computer networks MCQs — OSI, TCP/IP, routing & protocols.
100 questions | 100% Free
A company wants to convert data formats between different systems. Which OSI layer should handle this?
Which of the following is NOT a function of the Application Layer (Layer 7)?
In the OSI model, which layers are considered the 'Media Layers'?
Which device operates primarily at Layer 3 of the OSI model?
TCP/IP model has fewer layers than the OSI model. How many layers does the TCP/IP model have?
A packet arrives at a router with a damaged frame header. At which OSI layer should this be detected?
Which of the following scenarios requires Layer 7 (Application Layer) involvement?
A company experiences intermittent network connectivity issues. When troubleshooting, an administrator discovers that the issue occurs only when data passes through a specific gateway. At which OSI layer(s) should the administrator focus their investigation?
During a network audit, it is discovered that HTTP traffic is being intercepted and modified. At which minimum OSI layer would a device need to operate to perform this attack?
What is the relationship between the TCP/IP model and the OSI model in terms of functionality?
A network administrator needs to implement a solution to prevent unauthorized access to sensitive data transmitted over the network. Which OSI layer would be most appropriate for implementing encryption?
In a corporate network, certain applications require guaranteed delivery and error checking, while others prioritize speed. Which Layer 4 protocols would best serve these requirements respectively?
A manufacturing facility's IoT devices communicate using raw bit transmission over twisted pair cables. Which OSI layer(s) are being utilized?
Which of the following statements correctly describes the role of the Session Layer (Layer 5) in the OSI model?
A packet sniffer tool captures data at Layer 2. Which information would be visible in the captured frames?
In a scenario where a web server receives requests from multiple clients simultaneously, at which OSI layer would connection management and multiplexing be handled to ensure proper session isolation?
An organization implements Quality of Service (QoS) policies for video streaming. At which OSI layer would bandwidth prioritization rules primarily be enforced?
A network administrator notices that devices can connect physically but cannot communicate. After checking cables and signals, the issue remains. Which layers should be investigated?
When a web browser displays encrypted HTTPS content correctly on the user's screen, which layers have successfully completed their functions in the correct sequence?
Which statement correctly describes the relationship between protocols and OSI layers?