Interview_Questions Flashcards
Tell me about yourself
*Im network adminstrator with 5 years of experience
*my last role I was a contractor over at Quantico
*Most of my experience is with configuring/upgrading 9300 switches including 802.1x and port security
My goal is to bring my experience to this position while expanding my knowledge in networking
Last employment
*I was let go because I had a security policy violation
* I learned from that mistake
802.1x / port security
802.1x - uses authentication (Username/password
Port security uses mac addresses
ISE
Network access control
uses 802.1x, radius and tacacs
Upgrading IOS
make sure there is enough space in flash
using a usb- transfer the new file into flash
Challenging Situation
I had to uninstall an old codec and reinstall a new one. I had never done it before I had to google how to connect the audio pins
Working Under Pressure
I had to troubleshoot a VOIP phone in front of a classroom full of people and im not very familiar with voip phones
Team Work collaboration
a unit took over our sipr network. There were bumps in the road but we managed to come together and it ended up being a smooth transition.
Strength/Weakness
strength- adaptablity
weakness- i tend to take on too much thinking that if its going to be done correctly i should do it myself
Mistake
my first networking job I was at a clients site and I was in the data closet. I bumped the fiber which was the trunk port and the whole floor lost connectivity.
Router Switch
Router -
layer 3
uses ip addresses
connects devices in different networks
Switch-
layer 2
uses mac addresses
connects devices in the same network
Trunk vs Access port (VLAN’s)
Trunk - carries traffic to many vlans
Access- carries traffic to a single vlan
VLAn
Security/ segmentation
Default route
instead of maintaining many routes you can use a
TCP vs UDP
TCP- connection oriented
http, ssh telnet
UDP- connectionless
DHCP DNS
Default gateway
an ip address that allows traffic to flow outside of the local network
DHCP
domain host configuration protocol
an ip address that is automatically assigned
DNS
domain name service
the ability to change a domain name into an ip address
status up protocol down
physical link is up layer 2 is down- could be a configuration issue on a port
