SCNA8 braindump
From: stvlim@y...
Date: Wed Nov 28, 2001 3:14 am
Subject: SCNA questions...
Hi All,
I'm posting some of the questions I have in my SCNA 8 exam.
The exam is 120 minutes for 58 questions. Passing score required is
67%.
The exam tests on understanding of the concepts, named of the
configuration files & its locations. Very less on command & its
format. Focus a lot on the features & advantages & disadvantages.
I dun hv any questions on pntadm & dhtadm command. Nothing on Sun
Trunking. No question on calculating of broadcast & network number.
Nothing in ATM & FDDI.
Focus more on TCP/IP layer model, DNS, and routing.
Routing questions were more on troubleshooting scenario.
Ask bout what protocol is in IP layer
(IP & ICMP)
ping command use what protocol ??
(IP & ICMP)
ICMP messages are encapsulated in
(IP)
remember all the configuration files for NTP & its location.
(/etc/inet/ntp.server, /etc/inet/ntp.conf, /etc/inet/ntp.client,
/var/ntp/ntp.drift)
name the client configuration template
(/etc/inet/ntp.client)
name NTP configuration & template file
(/etc/inet/ntp.conf & /etc/inet/ntp.server)
what file contains reference clock for NTP ??
(/etc/inet/ntp.conf)
ask bout functions of ntp ??
a) synchronize time across global
b) synchronize time across timezone
Troubleshoot a network interface that's not working. Exhibit shows
output of ifconfig -a (notice the network interface is not UP)
What is ARP used for ??
map a 32-bit IP address to a 48-bit Ethernet address
what is rarp for ??
(for bootp client)
how to add a permanent ARP table entry ??
arp -s
what's the features of SMC 2.1 (2 answer)?
a) to manage network devices
b) to remotely modify DNS database
c) see which users log in
d) to configure network print server
e) modify NIS+ domain information
what's the top most inverse address lookups ??
(arpa)
remember all configuration files for DNS (/etc/named.conf,
/var/named/domain-info, /var/named/inverse-domain-info,
/var/named/loopback-domain-info)
what's resource records for client to receive mail ??
(MX)
Read bout CNAME resource records.
Zone data transfer from master server to secondary master failed, what
happened ??
(serial number)
what's the benefits of IPv6 ??
(autoconfiguration, smaller routing table)
pick a global address for ipv6
how many bits in MAC address for VID (fill in answer)
(24 bits)
given output for netstat -r. pick the delivery host
(look for G under flags)
pick the command for route add with netmask specified.
(look for the correct syntax)
pick two files that prevents in.routed & in.rdisc
given are /etc/defaultrouter, /etc/notrouter, /etc/gateways
name the RIP daemon
(in.routed)
route that requires a gateway ??
(indirect route)
what's peer-to-peer communication ??
(specific layer to communicate with the corresponding layer on another
host)
a port listed in /etc/inet/services is
(well known port)
which are true of stateful protocols ??
(connection-oriented, reliable)
what is the functions of SNMP ??
(get, set, trap)
fill in the path for file containing symbols ??
(/etc/dhcp/inittab)
what file to modify for macro related information ??
(/var/dhcp/dhcptab)
questions on organisation hosting lots of website. over the number of
virtual interfaces, how to change the value ??
(ndd)
a system with 5 ethernet interfaces. select which is true..
(each network service assoicated with tcp ports,
the port are not mapped to the 5 ethernet interfaces)
select true about service (2 ans)
(a service is accessed by a process, a service is provided by a
process)
regards,
steven
(SCSA, SCNA, MCSE)
===================================================================================
I just passed SCNA for sol 8 today with 96 %. I
answered 56 out of 58 Qs correctly. I should be really
so grateful to this and some other Solaris discussion
groups which inspired me to take up
Solaris 8 instead of Solaris 7. I passed SCSA (sol 7)
in last march. I should share with you all what I
observed.
IMPORTANT: All the questions were from the course
manual of
SA-389 only (thats the reason I got a good score).
IMPORTANT2: Never fail to check all the answers again.
Read the questions thoroughly, as some of them try to
distract us from the correct answer.
I should say only 30% of the exam was easy. They
rigorously tested me my understandings of the
concepts, the formats of the most of the conf files
and the understanding of the network commands like
ifconfig etc..
One new thing in Solaris 8 exam is they specify the
number of correct answers to choose in check box
questions. THis helps a lot in avoiding wrong
decesions. (Another great helper in Good scoring)
I was tested much on DNS than any other topic. The
importance of serial number field in SOA record for
updating secondary servers was one troubleshooting
scenario. (but I didnt get any Qs from nslookup)
in another DNS related: which wrong entry in zone file
would cause domain name doubled with a record (which
is viewed thru the debug output from pkill -INT
in.named) eg: policy.corp.sun.com.corp.sun.com There
were 4 possible wrong answers and the question was
described thru a scenario.
Another question in DNS also necessitated the clear
understanding of the zone file formats and various
record types like NS, PTR etc..
in the rev domain what is the topmost domain.
ans: arpa (other answers: in-addr, etc..)
After DNS routing related were the topics. two
questions asked to name the two routing daemons
(in.rdisc and in.routed)
Only 4 questions on DHCP.
There were only 3 to 4 questions each on NTP and IPv6.
In NW layer models only peer-peer commn was the only
question.
The commands I was tested for comand syntax and
options were
route
arp
ping
ndd
(One need to be thorough only with the often used few
options. We need not remember all options in man pages
though it is helpful)
Notable exceptions in commands that didnt appear in
the exam are
dhtadm, pntadm, traceroute, netstat, snoop, ifconfig.
I was checked for interpreting output of ifconfig and
netstat -r.
The network troubleshooting scenarios based questions
were not that painful as I expected.
I was tested on contents of /etc/rpc, ntp.conf
Notably, on VLSM subnet calculation only one question
was there which was combined with route comand.
route add net 200.20.20.0 192.20.20.75 -netmask
255.255.255.192 1
The other answers with the above option were wrong
ones in syntax.
One check box question was on stateful protocols
ans: connection oriented, reliable, acknowledged.
Description of some network devices (like bridge) were
given on a few questions and to identify the correct
answer(s)
Some questions I remember on DHCP (total 4)-
Complete path to file having symbols
ans /etc/dhcp/inittab (I wrongly answered as
/var/dhcp/dhcptab), Because the question was put in
such a way to tempt me to choose that.
if a macro related information is to be modified which
file should be modified (ans dhcptab).
Fill in the blanks questions that ask for complete
pathname to the file should include the entire path
from "/" upto the filename itself. eg:
/etc/inet/ntp.conf
for NTP I was asked for complete path name for client
configuration template
ans /etc/inet/ntp.client
another NTP ques(checkbox)
which are NTP configuration file and template file for
NTP server?
ans /etc/inet/ntp.conf ntp.server
which file contains information about reference clock
for an NTP server?
ans /etc/inet/ntp.conf
I got 2 Questions on SNMP
the three functions of SNMP (check box)
get, set, trap
the functions of Sun Management center(check box - 2
answers) - this is the second question I lost.
A to manage network devices
B to remotely modify DNS database
C To see which users are logged in
D to set access for print server
E to modify NIS+ domain information
One question was on virtual interfaces. an orgn
hosting many web sites had many IP addresses and all
should be mapped to a single server using virtual
interfaces. It was more than the number of virtual
interfaces supported in normal solaris env. which
command would you use to modify the max no. of
interfaces.
ans ndd command. other answers included ifconfig etc..
I didnt get questions on Sun Trunking.
A question was just to confuse. It stated a system has
5 ethernet interfaces. It was posed to confuse with
the TCP ports.
In client server model, a question was on service. The
right answers were,
a service is accessed by a process
a service is provided by a process
one among the 3 wrong answers were,
a service always occurs over the network.
icmp messages are encapsulated in
ans ip (other answers tcp, udp etc..)
Final note:
Anyone who passes SUN exams does not do so by luck I
think.
Sorry I am not able to remember each and every
question and the answers. I suggest all to convert the
above observations into possible questions and
answers.
best regards
mey
=======================================================================
Hello everyone,
First I'd like to thank the group and the other solaris yahoo
groups. My brain is still a little numb, but I thought that I'd let
everyone in on some thoughts I had about the exam.
Get the SA-389 pdf from the files section! This is an excellent
course, and do all of the labs until you understand the concepts. I
am fortunate to have three computers in my home lab to test out
routing and DNS. Know where the config files are for dns,dhcp,ntp and
know how to configure them. I had 4 questions on ntp and three were
on location of files. I had 4 questions on dns, two were trouble
shooting and were not too difficult, two questions on snmp- again
simple ones. I was tested on the TCP/IP model, not on the osi (but
you should know both)I had two token questions on ipv6- not very
hard. Four questions on routing. I had a lot of questions on
networks, network model arp. I had three or four on DHCP, again not
difficult ones esp. if you play with it and set it up a few times.
Know how to set dhcp (server and client), bind in debug modes.
I must say that it did help that I am a CCNA, and it allowed me to
gloss over the network theory part of the course. So in the end I
scored 94% and I second guessed my self on one question, but that's
life.
Multiple choice questions were nice in that they asked for a specific
number of answers and it allowed me to use the eliminate the wrong
answers strategy.
One thing I must mention is that they don't show you your score on
the screen, the only way you can guess how you did is to click on the
section scores button at the bottom.
In the end I can't stress enough, if you plan on taking this exam
download SA 389 and get atleast two computers and go through every
lab until you understand everything, and learn the tcp/ip model (sun
version).
Steve
