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A. Reliable B. Non-reliable
C. Less bandwidth-intensive D. Handshaking Answer: B, C
The Transport layer is a good example of how both a connectionless and connection oriented service works. UDP is a connectionless services and is considred unonreliable, but uses less bandwidth then a connection
oriented service.
TCP is a connection oriented service and is considered reliable because it uses handshaking to create the service and acknowledgments.
Chapter: 7
303. Which of the following OSI layers is used to determine the best path to a network?
A. Data Link B. Session
C. Physical
D. Presentation E. Network
F. Transport
Answer: E
The Network layer (Internet layer in the DOD model) provides logical addressing and routing through an internetwork.
Chapter: 7
304. You are working within the Cisco IOS. Which of the following functions does the up arrow key provide?
A. Recalls the previous command line B. Moves the cursor one line up C. Redisplays the current command line D. Capitalizes the command line
Answer: A
The up arrow key is used to recall the previous command line entry.
Chapter: 7
305. Which command must be entered when connecting two routers WITHOUT external DCE devices?
A. serial up B. clockrate