Command to troubleshoot DNS problems Host name resolution problems:
A packet header contains 4 parts. they are:
You try "ping server1" and you get "no answer from server1". Why ? (assume that your machine resolved the name correctly).
What file identifies the name server (for information requests) if cold start file is to be consulted during the boot process .
what is difference between cisco switch and other vendor switch?
Define network topology?
Choose three reasons why the networking industry uses a layered model: * It facilitates systematic troubleshooting * It allows changes in one layer to occur without changing other layers * It allows changes to occur in all layers when changing one protocol * It clarifies how to do it rather than what general function to be done * It clarifies what general function is to be done rather than how to do it
In the nsswitch.conf file what does the following entry mean ? NOTFOUND=return
What is "keepalive"? a. A keepalive is a small, layer-1 bit message that is transmitted by a network device to let directly-connected network devices know of its presence. b. A keepalive is a small, layer-2 message that is transmitted by a network device to let directly-connected network devices know of its presence. c. A keepalive is a small, layer-2 message that is transmitted by a network device to let it neighbors know of congestion d. A keepalive is a small, layer-3 message that is transmitted by a network device to let directly-connected network devices know of its presence. e. A keepalive is a small, layer-3 message that is transmitted by a network device to let it neighbors know of congestion
Solaris machines more often than not runs routed daemon. routed is the unix equivalent of RIP. It is always run with -q option. Why ? a. q options optimizes the process b. q option uses a default route c. q option only activates itself in the absence of a default router d. q option tells the process not to advertise any routes. It just listens to the RIP udates. That way it does not interfere with router in the subnet.
all your interview question in networking and system administration
DHCP stands for ?
How to perform system maintenance?