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Identify the OSI layer responsible for end-to-end connections?
A.) Network
B.) Transport
C.) Session
D.) Data link
E.) TCP
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Which OSI layer provides best effort end to end packet delivery? A.) Data-Link B.) Presentation C.) Network D.) Transport E.) Physical F.) Application
How do we do encryption and authentication in L2TP?
Which of the following is true regarding standard ISDN BRI service? A.) ISDN BRI B channels are typically 64K. B.) ISDN BRI can handle only voice. C.) ISDN BRI can handle only data. D.) ISDN BRI has 2B and 1D channels. E.) ISDN BRI D channels are 16K. F.) ISDN BRI can handle voice and data.
Which of the following describe SMTP? A.) Used for downloading files to the router. B.) Used for sending e-mail. C.) Uses TCP. D.) Uses UDP. E.) Uses port 25. F.) Used for managing IP devices.
What are the 2 functions of the Data Link Mac layer? A.) Handles access to shared media B.) Manages protocol access to the physical network medium C.) Provides SAPs for higher level protocols D.) Allows multiple devices to uniquely identify one another on the data link layer
Mention what is dhcp?
Switching methods include cut-through, store and forward, and a modified version of the first two methods. Which statement about switching methods is true? A. The store and forward method has low latency B. The cut through method of switching has high latency C. The modified version holds the packet in memory until 50 percent of the packet reaches the switch D. The modified version holds the packet in memory until the data spoon of the packet reaches the switch
What is the total bandwidth of all channels on a BRI circuit? A. 56 kps B. 64 kps C. 112 kps D. 128 kps E. 144. kps
When dr communicate with bdr which multicast ip it use?
A ISDN BRI circuit can be described as a which of the following? A.) 3B channels B.) 2-64Kbps B channels and 1-16Kbps D channel C.) none of the above D.) 2-64Kbps B channels and 1-16Kbps C channel
On which layer does L2F, PPTP and L2TP operate?
What is the network brouter?
CCNA 
