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Which of the following are Transport layer protocols?
A.) UDP
B.) TCP
C.) NBP
D.) IP
E.) SPX
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The two sublayers of the IEEE Data Link Layer are which of the following? A.) Link and Logical Control B.) Data Link and LLC C.) Logical Link Control and Media Access Control D.) Data Link and MAC
How many total hosts are possible with a Class C address and a subnet mask of 255.255.255.252? A. 4 B. 30 C. 60 D. 62 E. 112 F. 124
When discussing static routes, what is the gateway parameter used for? A.) Determining the dynamic route B.) Defining the subnet C.) Defining the Administrative Distance D.) Determining the next hop
Identify the command mode necessary to enter the extended ping command? A.) Router# B.) Router> C.) Router(config)# D.) Router(ext-ping)#
Identify the hardware component that stores the bootstrap program? A.) ROM B.) NVRAM C.) Booter load D.) RAM E.) Flash
Why twist in twisted pairs?
What is the difference among straight cable, cross cable and rollover cable?
X.25 is characterized by layer 2 identifiers, and what else? A.) Virtual Lan's B.) Session Layer C.) Transport Layer D.) Routing Updates E.) PVC's
What is the most common layer 2 device? A. Hub B. Bridge C. Switch D. Router
How do we do encryption and authentication in L2F?
On which bas ospf take decision?
what is stp.
CCNA 
