TCP/IPNetwork Administration-Solaris™ Operating Environment

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11 The -V option to snoop is called what?

Terse mode
Summary verbose mode x
Verbose mode
Normal mode

** Terse mode = no options; Verbose mode = -v

12.Which is NOT true regarding UTC?

UTC is calculated by an atomic clock based in the United States x
The current UTC time is the average of several organizations contributing current time
Several organizations provide calculations for the current UTC time
It is the official standard for current time

13.In the TCP/IP model, a segment or packet is created in which layer?

Network
Internet
Transport x
Application

** Hardware=0 and 1's; Network Interface=Frame; Internet=Datagram; Transport=Segment or Packet; Applicaton=Stream or Message

14.What is a protocol as it relates to a network model?

Set of rules governing the exchange of data between two entities x
Rules that cover timing, semantics and syntax between two entities  
It details the functions of each layer in network model x
The processes that communicate with each other on the server

15.What is the most frequently used DNS implementation used in Solaris?
"bind" or "Berkeley Internet Name Domain" is correct!
You can download the latest version of BIND from www.isc.org. Solaris 8 implements BIND 8.1.2

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16."touch /etc/notrouter" or "> /etc/notrouter" is correct!
A machine with multiple NICs is by default a router. A multi-homed host has multiple NICs but does not run routing protocols and does not forward IP packets. You must create the /etc/notrouter to enable a multi-homed system.

17.What are the disadvantages of default routing?

The host does not learn of any other gateways even if the default is down x
ICMP redirects occur if more than one router is available to a host x
With many systems, there is less system configuration needed to specify the default route
Less entries in the routing table

** With many systems, you will need to create an /etc/defaultrouter file for each system requiring more configuration than a routing protocol. Less entries in the routing table is an advantage.

18.A broadcast is defined as the OR of the network number and NOT of the netmask

True x
False

The network number is defined by the AND on the IP address and netmask.

19.An Ethernet II frame contains a Length field specifying the length of the frame.

True
False x

Ethernet II contains a type field which describes the data payload. IEEE 802.3 contains a length field.

20.What are the three types of Ethernet addresses?

Localcast
Broadcast x
Unicast x
Multicast x

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21.If the crossover occurs externally, then the connectors are considered MDI-X.

True
False x

If external to device, then port is MDI. If internal to device, then port is MDI-X.

22.Which DHCP process constructs and sends packets, listsens for responses from servers, releases or renews leases, configures interfaces, and caches the config information received?
"dhcpagent" is correct!

23.Which is a transport layer API which provides an application program interface between the OSI transport and session layers?

XDR x
TLI x
Sockets
NFS

24.which are not valid /etc/named.conf entries?
acl x
zone x

The definitions include: key, logging, options, acl, inculde, server, zone

25.What is the record type of an IPv6 DNS record?
"AAAA" is correct!

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26.Which are true regarding a DHCP client

DHCP is automatically enabled for all Solaris systems
To enable: touch /etc/dhcp.INTERFACE_NAME x
You must specify the DHCP server in the /etc/default/dhcp config file for each client
The SUNWdhcsu and SUNWdhcsr packages are required x

28.What 2 daemons enable Solaris to behave as a router in IPv6?

in.ripngd x
in.ripd
in.ndpd x
in.ndpngd

29.A crossover cable connects MDI-X to MDI ports.

True
False x

A crossover cable connects MDI-X to MDI-x or MDI to MDI

30.Which of the following describes a packet which is greater than 1500 bytes?

jabber x
huge
long x
giant x

A jabber is a packet which is longer than 1500 bytes. A long frame is between 1518 and 6000 bytes. A giant frame is more than 6000 bytes.

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31.Which are NOT valid DNS naming rules?

Can only contain alphas, numerics, and dashes. x
Domain names are decided(determined) by the NIC x
32 character limit per domain label
255 character limit including dots per FQDN

Domain names are determined by the administrator(Approved by the NIC if not taken

32.IBM's token ring topology(IEEE 802.5) uses a logical RING topology.

True
False x

It actually uses an intelligent hub which passes the token directly to the destination w/out traveling through other stations creating a logical STAR topology

33.The search keyword in the /etc/resolv.conf file is used to specify?

Specifies which domain to resolve all queries
Specifies the domain to append for non fully qualified domain queries x
Search the FQDN then the domain specified in the query
Use the DNS services provided by the search domain

The search keyword specifies the domain to append to the non-FQDN as well as what order to append them

34.What daemon starts on bootup which listens for incoming requests for services on well known ports?

"inetd" is correct!
The inetd daemon will start server processes on demand. It is configured via /etc/inet/inetd.conf.

35.Multiple primary DHCP servers can reside on the same network.

True x
False

However, they must have different ip ranges

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36.Which boot prom variable can be set which allows network drivers to use the NIC address rather than the system address?

"local-mac-address?" or "local-mac-address" is correct!

37.What NTP term defines a NTP server which has its own reference clock?

"stratum-1", "stratum1" or "stratum 1" is correct!
A stratum-1 is the top level of the strata hierarchy of NTP servers.

38.You observe the following ARP traffic statement in snoop: "ARP: Target hardware address = ?". What type of address resolution is this?

ARP x
RARP
Neighbor Discovery x
DNS

This is a broadcast arp request for the ethernet address of an IP.

39.What are the 3 implemenations of 10BASE-F

10BASE-FL x
10BASE-FP x
10BASE-FB x
10BASE-FX

40.The EIA/TIA 568 Commercial Building Telecommunications Wiring Standard addresses 2 main cabling situations. One is the Vertical Cabling System which refers to:

Cat 5 UTP cabling system
Workstation Cabling
Backbone - Fiber Optic Cabling system x
LAN Interconnect Cabling

The 2 main cabling situations are Horizontal Cabling System(workstation) Cat 5 UTP and Vertical Cabling System(backbone) Fibre optic

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41.Internet Protocol Version 6(IPv6) is also known as?

"IPng" or "Internet Protocol Next Generation" is correct!

42.An NTP client does NOT broadcast or multicast NTP messages?

True
False x

On boot-up, the xntpd process broadcasts/multicasts a request to the NTP server. The NTP server will send messages every minute.

43.Which is the proper command to enable the named daemon to dump its database(memory cached data) to an ASCII file?

/usr/sbin/in.named -d 255 > /tmp/dump
nslookup -d SERVER-IP > /tmp/dump
pkill -INT in.named x
named-debug > /tmp/dump

44.Which device interconnects different networks using different protocols?

Bridge
Router x
Switch
Gateway x

45.The /var/named/named.root file is the actual list of root servers the DNS server will use.

True
False

The named.root file should contain an up-to-date list of the root servers. The DNS server will query each root server until one responds with a list of valid root servers. This list of root servers is used instead of the local named.root file. After a specified time-to-live, the file will be consulted again to update the cache of root servers.

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46.Which solaris deamon implements RIP?

in.routed x
in.rdisc
in.ripd
in.gated

RDISC is implemented by in.rdisc.

47. What should you check if a server fails to respond to RARP request?

Check the /etc/hosts file x
Check the /etc/ethers file x
Check to make sure the in.rarpd is running x
Check the /etc/bootparams file

You should also run the "snoop -v rarp" command on a third seperate system to monitor the rarp traffic between the server and client.

48.Fiber Distributed Data Interface(FDDI) provides for simultaneous synchronous and asynchronous traffic.

True x
False

Synchronous traffic consumes a dedicated portion, while asynchronous uses the rest using a priority scheme for nodes.

49.Which specification support 10Mbps over 2 fiber optic cables and was designed to provide point-to-point connections up to 1000 meters between 2 repeaters.

100BASE-FX
10BASE-T
10BASE-F
FOIRL: Fiber Optic Inter-Repeater Link x

50. Which dhcptab symbols affect the lease time policy?

LeaseAdd
LeaseTim x
LeaseSub
LeaseNeg x

The LeaseNeg symbol allows a client to re-negotiate a lease before it expires. The LeaseTim symbol is the lease time expressed in seconds.

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51.Which commands are available to monitor NTP?

ntp
ntpq x
xntpdc x
xntpdq

52.Which are true concerning Sun Trunking?

Supports trunking up to eight 10/100 quad fast ethernet ports x
Supports trunking up to 4 gigabit ports
Supports load balancing and single MAC address x
Supports multiple load distribuition policies. x

Supports up to 2 gigabit ports.

53.What functions does SNMP perform?

Pass
Trap x
Get x
Set x

SNMP is IP based and uses UDP. It uses "Get" to poll SNMP managed devices. The "Set" function changes data on a managed device. The "Trap" function sends an unsolicited message to the management station.

54.Which is NOT a general method of troubleshooting?

Make permanent changes x
Backup, document, and test x
Take nothing for granted
Report problem/issues to proper management x

General troubleshooting guidelines are: define problem in your own words; locate lowest level of failure; take nothing for granted; backup, document and test; Make permanent changes

55.What is the flow control protocol used in Ethernet?

"CSMA/CD", "Carrier Sense Multiple Access Collision Detect", "Carrier Sense Multiple Access with Collision Detect" or "CSMACD" is correct!

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56.Which of the following are true concerning network model layers?

Each layer has pre-defined tasks x
Each layer can talk to every other layer
Only has an interface to the layer below and above x
Attaches a layer-specific header to data frame as it passes through the layer x

57.Which denotes a compression of zeros in an IPv6 address?

:: x
x
0
-

For example, 0:0:0:0:0:0:0:1 can be represented by ::1

58.What are the supported trunking policies?

MAC x
Round Robin x
IP Source and Destination x
IP Destination x

MAC is the default policy

59.A gateway functions at which layer in the TCP/IP network model?

Application x
Transport
Internet
Network Interface

The application layer of the TCP/IP model also defines the way in which networks represent data

60.Which is NOT a type of DNS server?

Primary
Forwarding
Cache
Local x

The following are DNS servers: root, primary, secondary, caching, and forwarding