1. What is default routing? is the network route used by a router when no other route is available
2. How do you show the routing table for a specific IP address of 172.16.14.23?
3. How do you show the running configuration on a Cisco router?
4. How would you show the IOS on a Cisco router?
5. What CLI mode is needed to gain access to the configuration of a Cisco router?
6. What is the default gateway used for?
7. What does ?/? signify with IP addressing
8. How many available hosts are there in a full class C address? What?s the subnet mask for a full class C?
9. How many D channels are there in a PRI and which channel is reserved?
10. What is CAS?
11. What is a Smartjack?
12. How are T1?s tested?
13. What does all 0?s test check for?
14. What are some common devices you find on a T1 span? Mention at least 2
15. What is HDSL?
16. How many T1s are there in a DS3?
17. What is the difference between Digital Cross Connects and a Multiplexer?
18. What is the speed of a T1?
19. What does NAT stand for?
20. What is the network speed of 2XT1?s bundled together? How many channels per T1, in a 2xT1 bundled, would throttle the speed to 2MBPS
21. What is QoS and what is the importance of it in a VOIP environment?
22. What is the importance of a PTR record?
23. What is a ?CO??
24. What commands show you the routing table on a Cisco device?
