TCP/IPNetwork Administration-Solaris™ Operating Environment

bnso

111.Which of the following is correct notation for a yet unspeficified address in IPv6?

0
:: x
0:0:0:0:0:0:0:0 x
0000:0000:0000:0000:0000:0000:0000:0000 x

112.In IPv6, ARP is replaced by?

ICMP
Neighbor Discovery x
Router Discovery x
IGMP

113.Which of the following are NOT true regarding Virtual Interfaces?

Maximum 256 virtual interfaces supported x
Virtual interfaces are created by file format /etc/hostname.xxn:#
Each virtual interface must have a corresponding entry in /etc/hosts
Many virtual interfaces do NOT have an affect on network load or system startup performance. x

8192 virtual interfaces are supported. You must modify the kernel paramters to increase from 255 virtual interfaces. Many configured VI's can slow down system startup and increase packet processing times.

114.Which of the following IPv6 addresses indicates that the destination system does not support IPv6?

::10.0.0.1
0:0:0:0:0:0:10.0.0.1
0:0:0:0:0:FFFF:10.0.0.1 x
FFFF:0:0:0:0:0:10.0.0.1 x

The sixth 16bit group of bits is ones which indicates the destination system does not understand IPv6.

115.Creating a /etc/defaultrouter file for a default route prevents in.routed and in.rdisc from starting on boot up.

True x
False

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116.Which file can be used to disable RIP packets from either entering or leaving an interface?

"/etc/gateways" or "gateways" is correct!
The directives norip, noripin, and noripout can be used to control RIP traffic for an interface. /etc/gateways can also be used to add permanent passive routes.

117.What are the main characteristics of TCP?

Unstructured stream orientation x
Buffered transfer x
Virtual circuit connection x
Full duplex connection x

118.Which is NOT true regarding ONC+ technology?

Provides core services to developers
Includes tools to administer client-server networks x
Is Sun's open systems distributed computing environment
Is not backwards compatible with ONC services x

119.Which file contains the DHCP optons?

"inittab" or "/etc/dhcp/inittab" is correct!

bnso

Part 6
1. After installing a second network interface card to your system, which file would you need to create so that the system performs a re-configure at next boot up.

a) /.reconfigure
b) /etc/.reconfigure
c) /reconfigure
d) /etc/reconfigure

2. What command(s) would you use to show the RPC services' program numbers, version, and protocol?

a) rpcinfo
b) netstat -a
c) rpcinfo -p
c) netstat -rn

3. What information can ICMP provide?

a) Multiple routes
b) Detection circular or excessively long routes
c) Network unreachable
d) Number of collisions.

4. Which type of DNS nameserver provides only local cache of looked up DNS names?

a) primary server
b) secondary server
c) forwarding server
d) caching-only server

5. What is an SOA record?

6. What is a PTR record?

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7. Given the following
    ; formerly NS.INTERNIC.NET
    .    3600000    IN    NS    A.ROOT-SERVERS.NET.
    A.ROOT-SERVERS.NET.    3600000    A 198.41.0.4
   which file would you most likely find the above information to reside?

   a) DNS.root
   b) bind.root
   c) named.root
   d) domain.root

8. What flag would you use for in.routed when setting up a machine that is not a router?

   a) -r
   b) -s
   c) -q
   d) -l

9. Given the following output:

le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
inet 128.50.1.2 netmask ffffff00 broadcast 128.50.1.255
ether 8:0:20:75:6e:6f
   type the command that you would enter in /etc/netmasks.

10. Regarding the Internet layer, what is a packet?

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11. What option would you use for snoop to display packets in verbose summary mode?

a) -v
b) -i
c) -V
d) -o

12. Which file maps an ip address to an interface?

a) /etc/hostname.interface_name
b) /etc/inet/services
c) /etc/inet/hosts
d) /etc/inetd.conf

13. What file(s) would you need to modify to configure an interface?

a) /etc/inet/hosts
b) /etc/inet/services
c) /etc/hostname.interface_name
d) /etc/inetd.conf

14. Given the following output from a dhcp_network file, select the statement(s) that is true:
     01080011043B65 03 129.146.86.206 129.146.86.181     -1 inet17

a) Lease for this IP address is negotiable.
b) inet17 is the hostname assigned for the DHCP client
c) Lease for this IP address is permanent.
d) The ip address for this client is 129.146.86.181.

15. Give the command that manages the DHCP client tables.

a) dhcpconfig
b) dhtadm
c) pntadm
d) dhcpmanage
e) dhcpagent

bnso

16. What is true about the FORWARD file?

a) It consists of user-defined aliases.
b) It exists on the local system.
c) It exists on the user's $HOME directory of the sender.
d) It consists of addresses to which you want you're mail forwarded to.

17. Given the following entry in /etc/dfs/dfstab,
share -F nfs /var/mail
which of the following command(s) would you need to run to set up the mail server.

a) exportfs -a
b) shareall -F nfs /var/mail
c) shareall
d) share -F nfs /var/mail

18. Which file holds the process id for BIND?

a) /etc/named.pid
b) /var/named/named.pid
c) /named.pid
d) /etc/bind.pid

19. What does the DIRECTORY keyword reference to in the DNS server configuration file?

a) the directory for DNS configuration files
b) the directory for DNS caching server files
c) the directory for secondary DNS server files
d) the directory for DNS configuration log files
e) the directory for DNS client configuration files

20. What is the name of BIND's configuration file?

a) named.conf
b) named.config
c) bind.conf
d) named.boot

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21. What is the name of the BIND daemon on Solaris?

a) in.routed
b) inetd
c) in.named
d) in.rdisc

22. Given the following output, which file would you most likely find it in?

   search zoo.edu
   nameserver 128.50.1.1
   nameserver 128.50.2.1

a) /etc/named.conf
b) /etc/resolv.conf
c) /etc/services
d) /etc/inetd.conf

23. What is the OSI equivalent for the Application layer in the TCP/IP model?

a) Application
b) Presentation
c) Session
d) Transport
e) Network

24. Sendmail is a

a) mail user agent
b) mail transfer agent
c) mail host
d) mail delivery agent

25. What is true about CSMA/CD?

a) It allows more than one device to transmit at the same time.
b) The acronym stands for Collision Sense Multiple Access/ Carrier Detect
c) The acronym stands for Carrier Sense Multiple Access/ Collision Detect
d) It ensures that only one device transmit at a time.

bnso

26. Which of the following can NOT run over Cat 5 cabling?

a) ATM
b) 10-BASE-T
c) 100-BASE-TX
d) 100-BASE-T4

27. Which standard is Ethernet specifed?

a) IEEE 802.3
b) IEEE 802.4
c) IEEE 802.5
d) RFC 950

28. Which statement refers to jabbers?

a) If the received packets less than 46 bytes, the packet is too short and is discarded.
b) If the received packet fails the CRC, the packet is corrupted and therefore discarded
c) If the received packet is greater than 1500 bytes (MTU), the packet is too long and is discarded.

29. Which of the following are considered LAN components?

a) router
b) gateway
c) computer
d) router Operating system
e) disk drive

30. Which statement most accurately describes Class-A IP addresses?

a) The first bit is 0, the next 7 bits are the network number, and the remaining 24 bits are the host number.
b) The first two bits are 10, the next 14 bits are the network number, and the remaining 16 bits are the host number.
c) The first three bits are 110, the next 21 bits are the network number, and the remaining 8 bits are the host number.
d) The first four bits are 1110, and the remaining 28  bits consist of an Identification for a specific multicast group.

bnso

31. Which file associates an RPC program with its unique RPC program number?

a) /etc/rpc
b) /etc/rc2.d/S69inet
c) /etc/inet/inetd.conf
d) /etc/rc2.d/S72inetsvc

For 7
1.        At which layer in the ISO/OSI 7 layer model is the ethernet address added to the packet?

A.        The Application Layer
B.        The Network Interface Layer
C.        The Data Link Layer
D.        The Hardware Layer

C (The ethernet address is added to the ISO/OSI model at the Data Link Layer, while it is added to the TCP/IP model at the Network Interface Layer)

2.        Which protocol for the transport layer of the ISO/OSI 7 layer model has no error checking?

A.        TP-0
B.        udp
C.        tcp
D.        TP-4

A (udp is the correct answer for the TCP/IP model, however in the ISO/OSI model, it is TP-0)

3.        At which layer in the ISO/OSI 7 layer model does routing take place?

A.        Transport Layer
B.        Hardware Layer
C.        Session Layer
D.        Network Layer

D (Routing takes place at the Network layer of the ISO/OSI model, as the router only needs to see the IP address and compare that to its own IP address)

4.        Which of the following layers are not part of the TCP/IP 5 layer model?

A.        Application Layer
B.        Session Layer
C.        Network Interface Layer
D.        Hardware Layer

B (The session, presentation, and application layers of the ISO/OSI model are all rolled into the application layer of the TCP/IP model.)

5.        At which layer of the TCP/IP model is the CRC added?

A.        Hardware Layer
B.        Network Interface Layer
C.        Internet Layer
D.        Transport Layer

B (The Cyclical Redundancy Check gets appended at the network interface layer)

bnso

1.        How does ifconfig determine the netmask for an ip address?

A.        It looks at the class for the IP block
B.        It looks at the /etc/netmasks file
C.        It is entered in at the command line when typing ifconfig
D.        It is a given that the netmask is 255.255.255.0

A, B, C (The order in which ifconfig will set up a netmask is as follows:  If the netmask is not specified at the command line, it will look at the /etc/hosts file for the network.  If there is no entry for the network address in the /etc/netmasks file, ifconfig will assign a netmask based on the IP address class, A, B, C)

2.        What determines a class A IP address block?

A.        A 0 as the first bit of the first octet
B.        A 10 as the first two bits of the first octet
C.        A 110 as the first three bits of the first octet
D.        A 1110 as the first four bits of the first octet

A (The ip address range for a class A license is 1-127)

3.        What does the ethernet address specify in the Sun environment?

A.        The 48 bit physical address of the device connected to the network
B.        The 48 bit physical address of the host on the network
C.        The 48 bit address that matches the IP address of a host on the network
D.        The 32 bit address that is put on a network interface that is connected to the network

B (While A and C are close to the truth, in a sun environment, the ethernet address (unless specified in the prom) matches the hostname.

4.        What protocol in the TCP/IP network model contains error correction?

A.        tcp
B.        udp
C.        ip
D.        icmp

A (tcp has error correction, udp does not)

5.        What protocol in the TCP/IP network model is used for routing?

A.        tcp
B.        udp
C.        ip
D.        icmp

D (ICMP is used in the RIP protocol, to update route tables)