Basics: - What's the difference between a hub, bridge, switch and router
- what's the difference between a statefull and stateless firewall/router
- What's the difference between ICMP, UDP, and TCP
- whats the difference between a /24 and /23 network and why
Bind/DNS: - DNS question: "what happens when you connect with your browser to www.google.com"
- what is an A Record/C Record
- Bind: named.conf file vs db.ADDR
Spanning tree question: "how would you wire a bunch of 100m switches with 1G uplinks, if you had them as core switches too?)
SNMP: - what is a mib vs oid?
- what is stored in an oid and how do you get it, and what are the different types of variables?
Wireless question: user connects in and sticks to AP as they move around the office
OSPF: - ASBR, IR, ABR? (ASBR links "RIP" domains with ospf, IR normal router in an area, ABR is a router bridging areas)
- Stub vs. Totally Stubby vs. not so stubby areas?
BGP: - States: do you know all 6? what's better established, idle or active?
- what is the difference between an ibgp and ebgp route? (same as as you)
- Weight Metric, Local Pref, MED (weight prefers neighbors on single router, local pref is same but for an ibgp group. med tells peer which path to send traffic through)
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