Multiple Choice Questions & Answers on OSI Model & TCP/IP | Page-5

21 TELNET, FTP, SMTP, Protocols fall in the following layer of OSI reference model
A Transport Layer
B Internet Layer
C Network Layer
D Application Layer

Answer: Option [D]
22 UDP is ___________ protocol.
A Connection oriented
B Connectionless
C Neither
D Both

Answer: Option [B]
23 Which of the following is an application layer service ?
A Remote log-in
B File transfer and access
C Mail service
D All of the above

Answer: Option [D]
24 The main function of transport layer is
A Node-to-node delivery
B Process-to-process delivery
C Synchronization
D Updating and maintenance of routing tables

Answer: Option [A]
25 A bridge recognizes address of
A Layer-1
B Layer-2
C Layer-3
D All of the above

Answer: Option [B]


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