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Time for your CCNA and CCENT practice exam for Thursday, October 31!
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Let's get to today's exam!
1. When configuring router-on-a-stick, where are IP addresses required?
A. On the router's physical interfaces.
B. On the router's logical interfaces.
C. On the L3 switch's VLAN interfaces.
D. On the L2 switch's VLAN interfaces.
2. In a router-on-a-stick config, the host devices should use what as the default gateway?
A. The VLAN 1 interface on the local switch.
B. The router's physical interface.
C. The L3 switch's VLAN interfaces.
D. None of the above.
3. Summarize the following routes.
10.1.0.0 /16
10.2.0.0 /16
10.3.0.0 /16
10.4.0.0 /16
4. Short answer: What interface-level command will change a Cisco router's Serial interface from its default encapsulation to the encap that allows you to choose between PAP and CHAP?
command.
Answer and explanations right after this brief, important message!
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And now... the answers!
1. "B". With ROAS, you're going to create subinterfaces on the router, and the IP addresses will be configured on those subinterfaces.
2. "D". The hosts should use the IP addresses on the subinterfaces as their default gateway.
3. The summary is 10.0.0.0 /13, which can also be expressed as 10.0.0.0 255.248.0.0.
Going from left to right, the first two octets look like this:
10.1.0.0 00001010 00000001
10.2.0.0 00001010 00000010
10.3.0.0 00001010 00000011
10.4.0.0 00001010 00000100
The summary ends where the routes being summarized no longer have a bit in common. That happens after 13 bits, where the top three routes have a 0 and the bottom route has a 1.
That's your summary route, and the summary mask is the number of bits in common. That's it!
4. To switch from the default of HDLC to PPP, use the encapsulation ppp command. (On both ends of the connection, of course!)
Thanks for taking today's practice exam, and I'll see you on YouTube and Udemy!
Chris B.
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