TCP/IPNetwork Administration-Solaris™ Operating Environment

bnso

1.I dun hv any questions on pntadm & dhtadm command. Nothing on Sun Trunking. No question on calculating

2.of broadcast & network number. Nothing in ATM & FDDI.

3.Focus more on TCP/IP layer model, DNS, and routing.

4.Routing questions were more on troubleshooting scenario.

5.Ask bout what protocol is in IP layer  (IP & ICMP)

6.ping command use what protocol ?? (IP & ICMP)

7.ICMP messages are encapsulated in  (IP)

8.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)

9.name the client configuration template (/etc/inet/ntp.client)

10.name NTP configuration & template file (/etc/inet/ntp.conf & /etc/inet/ntp.server)

bnso

11.what file contains reference clock for NTP ??
(/etc/inet/ntp.conf)

12.ask bout functions of ntp ??
a) synchronize time across global
b) synchronize time across timezone

13.Troubleshoot a network interface that's not working. Exhibit shows output of ifconfig -a (notice the network interface is not UP)

14.What is ARP used for ??
map a 32-bit IP address to a 48-bit Ethernet address

15.what is rarp for ??
(for bootp client)

16.how to add a permanent ARP table entry ??
arp -s

17.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

18.what's the top most inverse address lookups ??
(arpa)

19.remember all configuration files for DNS (/etc/named.conf, /var/named/domain-info, /var/named/inverse-domain-info, /var/named/loopback-domain-info)

20.what's resource records for client to receive mail ??
(MX)

bnso

21.Read bout CNAME resource records.

22.Zone data transfer from master server to secondary master failed, what happened ??
(serial number)

23.what's the benefits of IPv6 ??
(autoconfiguration, smaller routing table)
pick a global address for ipv6

24.how many bits in MAC address for VID (fill in answer)
(24 bits)

25.given output for netstat -r. pick the delivery host
(look for G under flags)

26.pick the command for route add with netmask specified.
(look for the correct syntax)

27.pick two files that prevents in.routed & in.rdisc given are /etc/defaultrouter, /etc/notrouter, /etc/gateways
name the RIP daemon
(in.routed)

28.route that requires a gateway ??
(indirect route)

29.what's peer-to-peer communication ??
(specific layer to communicate with the corresponding layer on another host)

30.a port listed in /etc/inet/services is
(well known port)

bnso

31.which are true of stateful protocols ??
(connection-oriented, reliable)

32.what is the functions of SNMP ??
(get, set, trap)

33.fill in the path for file containing symbols ??
(/etc/dhcp/inittab)

34.what file to modify for macro related information ??
(/var/dhcp/dhcptab)

35.questions on organisation hosting lots of website. over the number of virtual interfaces, how to change the value ??
(ndd)

36.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)

37.select true about service (2 ans) (a service is accessed by a process, a service is provided by a process)
------------------------------------------------------------------------------

bnso

1. toplevel domain in reverse address lookup  :  arpa

2. RIP daemon   :  in.routed

3. RFC 568 speaks about :  Commercial Buildings Telecommunication
wiring standard

4. how to start DHCP server in debugging mode  :  put the following line in the relevant startup script : /usr/lib/inet/in.dhcpd –i <interface name> –d –v

5.snmp functions : get, set, trap

6. Ping uses IP along with the following Internet layer protocol:  ICMP

7. ping packet type : ICMP encapsulated in IP

8. Network router discovery daemon  :  in.rdisc

9. Sun Management Centre  gives the following info :
ans:.Displays graphical(pictorial) info of nodes, gives performance report

10.Given the node ip address and the subnet mask, find the  network address

bnso

11.Question on definition of autonomous system

12.Which of the files when present prevents the routing daemon from starting???
Ans: /etc/defaultrouter , /etc/notrouter

13.definition of encapsulation

14.definition of reliable protocol

15.which record specifies the list of hosts configured to receive the mails sent to a domain?
MX record

16. which record specifies the alias host name?   CNAME record

17.I have forgotten two questions on DNS and I can tell u the key which is same for both:
   Whenever  a domain name is given without a trailing dot (Relative DN) in a zone file ,
Origin defined by SOA record or $ORIGIN gets appended to the domain name

18. name resolution file in client??? /etc/resolv.conf

19. DNS Conf file :  /etc/named.conf

20. default Ipv6 link-local address from the given list :
ans:   fe80::a00:20ff:fe92:a3eb/10    (link-local address starts with fe8 and also note the FFFE which is added during auto-configuration of ipv6 address)

bnso

21. definition of arp

22. definition of rarp

23.topology with a single continuous cable?   BUS

24.ntp client template file : /etc/inet/ntp.client

25. ntp server template file  :  /etc/inet/ntp.server

26.which file has reference clock info?  /etc/inet/ntp.conf

27.algorithm to optimize flow control in TCP ???  sliding window

28. properties of trunking

29.which command to increase the no of virtual n/w interfaces in a web hosting company?
ndd

30. functions of Network interface layer : 1.packet  framing 2.error detection

bnso

31.FDDI uses two rings of fiber optic cable

32.which file is used for configuring  a n/w interface during system startup process??  
/etc/hostname.interfacename

33. When you try to add a default route manually, you get the following error “Destination host unreachable”. What could be the  problem???
ans:default router is outside the local network and cannot be reached

34)Given an ip address and netmask , give the command  to add a route to the  network route add net <network no> <default gateway ip> netmask  <netmask>

35. diskless clients use  :  rarp

36.definition of indirect routing

37.  ipv6 advantages :  efficient routing and more ip address availability no of vendor identifier(VI

179. A class C network  has a subnet mask of :

a. 255.0.0.0
b. 255.255.0.0
c. 255.255.255.0
d. 255.255.255.255

ans: C

180. How long is an IP address ?

a. 1 byte
b. 2 bytes
c. 4 bytes
d. 8 bytes

ans: C

bnso

181. A host belongs to a Class A network. The first octet of its IP address must be :

a. between 1-26
b. between 1-127
c. between 128-191
d. between 192-223

ans: A

204. The range of IP addresses set aside for the Class B networks are:

a. 1-126
b. 127-191
c. 128-191
d. 192-223

ans: C

206. The range of IP addresses set aside for the Class C networks are:

a. 1-126
b. 128-191
c. 192-223
d. 192-224

ans: C D) bits in ethernet address ??? 24

bnso

That's all