What transport protocol is used by DHCP?
UDP
ARP
IP
TCP
What does ARP map an IP address to?
the gateway address
A NetBIOS name
the MAC address
A DNS name
What command you use in Linux to start DHCP service?
services dhcp start
services dhcpd start
service dhcp start
service dhcpd start
A DHCP _____________ acts as a proxy for a DHCP server.
Relay Agent
Register
Resource Record
Client
From MS Windows command line, a client's DHCP lease can be manually renewed with the _______________ command.
ipconfig /refresh
ifconfig /renew
ipconfig /renew
ifconfig /refresh
After 100% of the lease time elapsed without a renewal, the DHCP client will send out a ______________ packet on the network.
DHCPAck
DHCPRequest
DHCPDiscover
DHCPRequest Broadcast
Sometimes a client cannot find a DHCP server though it issued a DHCPDiscover packet. When this happens to clients that had no previous lease, Windows clients implement _____.
AIP
DHCPFind
APIPA
To communicate across an Ethernet network, your computer must use its _____ bytes physical addresses.
8
12
6
16
In Linux, what file should you consult to check what leases had been given out from the Linux DHCP server?
/var/lib/dhcpd/dhcpd.leases
/etc/dhcpd/dhcpd.leases
/etc/dhcpd.leases
/var/log/dhcpd.leases
What is the name of the configuration file for DHCP in Linux?
/etc/dhcp/dhcpd.conf
/var/lib/dhcpd.conf
/usr/sbin/dhcpd.conf
/etc/dhcp.config
What command line utility is built into Windows system to query DNS servers?
dig
DNS active query
NSlookup
zone
Which of the following is considered a DNS alias that points to another host?
BNAME
HNAME
CNAME
PNAME
The DNS query between DNS servers is a/an _________ query.
Caching
Reverse
Recursive
Iterative
What is the host name in the DNS address cse.ucsc.edu?
ucsc.edu
ucsc
edu
cse
Which two records are created by default in a standard primary Forward DNS zone in a DNS server? (Negative marks for incorrect answer)
SOA (Start of Authority)
NS (Name Server)
PTR (Pointer Record)
Host (Address)
The root domain in DNS is represented by a:
.
?
/
,
An organization responsible for a domain may divide it into subdomain to decentralize administration.
What command line utility is added to Linux based systems to query DNS servers?
NSilookup
When will a WINS client register itself with the WINS server?
When the clients cache is cleared.
When the client is shut down.
When the client attempts to connect to a share.
When the client is started up.
You will find NetBIOS names most likely in what type of network environment?
All Ethernet networks
All TCP/IP networks
Any network
A Microsoft network
To avoid causing extra DNS traffic, increase security and save processing time you can add a static entry to your ___________.
ARP cache
WINS Configuration
Hosts file
LMHosts file
When a DNS zone information is copied to a slave or secondary DNS server, this is referred to as which of the following process?
host transfer
zone transfer
static transfer
Master transfer
Which of the following command/utilities can be used to clear the NetBIOS cache on a WINS system?
net use
nbtstat
ipconfig
net view
What command would you use from the command line to start the DNS daemon in Linux system (ex: CentOS)?
service named start
service dnsd start
service bind start
service dns start
Which DNS resource records are required to locate servers running specific services?
MX Records
NS Records
Host Records
SRV Records
What is the configuration file for DNS in Linux?
/etc/named.conf
/etc/dnsd.conf
/etc/bind.conf
/etc/dns.conf
DNS Stands for….
Directory Naming server
Domain Name System
Disturbing naming service
Distributed naming service
If the DNS server does not support ___________, then an administrator must create the host record entries manually.
DNS
NSDD
NS
DDNS
Reverse DNS zones are created within the ______________ domain.
in-addr.rev
rev-addr.arpa
addr.rev
in-addr.arpa
Like other services DNS consists of a client and a server service. The terminology used for the client is called ______.
Slave
Forwarder
Resolver
Master
Match the followings; Primary DNS or Master
Authoritative for the domain
gets data for its zone from authoritative server through zone transfer
only perform queries and all queries have a TTL
Match the followings; Cache only server
Match the followings; Secondary DNS or Slave
Match the definition with its DNS resource record name, TXT
comments
Hostname to IP mapping
IP address of SMTP host
alias for an IP with an existing A record
lists authoritative DNS servers for zone
OS type
IP to host lookup
keeps info such as TTLs, serial number, e-mail and responsible person
Match the definition with its DNS resource record name: MX
Match the definition with its DNS resource record name: NS
Match the definition with its DNS resource record name: PTR
Match the definition with its DNS resource record name: A
Match the definition with its DNS resource record name CNAME
Match the definition with its DNS resource record name: SOA
Match the definition with its DNS resource record name: HINFO
