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what is DNS used for
maps ip to host name
how do you troubleshoot nfs mounts
- showmount -e <host>
- ping <host>
daemons for nfs
lockd, statd, nfsd, mountd, vladd
what does the nsswitch.conf file do?
tells unix how to resolve passwds, hosts, etc
how do i find out if my interfaces are set for full duplex or not?
- solaris - ndd -get /dev/hme ? (adv_100fdx_cap; adv_100hdx_cap; adv_autoneg_cap)
- linux - mii-tool
what command is used to find a linux machine's ip information
how do i set a default route?
route add default <ip> <metric>
how do i verify my default route?
difference between udp and tcp
- udp - send and forget, unreliable
- tcp - 3 way handshake, reliable
7 layers of the OSI model
- data link layer
what's a vlan?
breaks down traffic so it only speaks across certain ports
difference between a hub and a switch
set an ip address on a cisco switch
Config-if# ip address 22.214.171.124 255.255.255.0
verify the cisco switch ip
Show ip - ip config of switch
dump the config file
What's a computer account and why would i want one?
allows the computer to authenticate to the domain
how would i find the ip address of a windows machine from the command line?
what's the $ after a share mean?
it's a hidden, administrative share
a NON-routable LAN protocol used in ethernet and token ring
creates a computer name -> ip mapping
Difference between native and mixed mode domain model?
mixed allows pre win2k machines to authenticate
What's the SGA and what's it used for?
system global area - used to transfer data and information between clients and the database
What's the difference between a hot backup and a cold backup?
hot is done during normal operation without shutting down
What's a pst file?
mail files used for microsoft outlook email.
open solution backup protocol
What port does NDMP use?
What's a lun? How is it different from a regular disk?
it's an "object" on the disk(s). it can encompass multiple disks
What's RAID 4?
Single parity, multiple data
How about RAID 5?
Parity across disks (our diagonal parity)
what is RAID 1?
for veritas, what are volumes made out of?
- Volumes are made up of plexes
- Plexes are made up of subdisks
- Subdisks are made up of VM disks
- VM disks are made up of real disks
What are three common daemons in veritas?
- vxiod - veritas io manager (managers reads and writes to volumes
- vxconfigd - vx object config manager
- vxrelocd - vx hot swap manager
Where's the veritas config file?
trick question - there isn't on! vxconfigd watches all.....
What would you like to do?
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