Question 1
Question
What transport protocol is used by DHCP?
Question 2
Question
What does ARP map an IP address to?
Answer
-
the gateway address
-
A NetBIOS name
-
the MAC address
-
A DNS name
Question 3
Question
What command you use in Linux to start DHCP service?
Answer
-
services dhcp start
-
services dhcpd start
-
service dhcp start
-
service dhcpd start
Question 4
Question
A DHCP _____________ acts as a proxy for a DHCP server.
Answer
-
Relay Agent
-
Register
-
Resource Record
-
Client
Question 5
Question
From MS Windows command line, a client's DHCP lease can be manually renewed with the _______________ command.
Answer
-
ipconfig /refresh
-
ifconfig /renew
-
ipconfig /renew
-
ifconfig /refresh
Question 6
Question
After 100% of the lease time elapsed without a renewal, the DHCP client will send out a ______________ packet on the network.
Answer
-
DHCPAck
-
DHCPRequest
-
DHCPDiscover
-
DHCPRequest Broadcast
Question 7
Question
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 _____.
Answer
-
AIP
-
Relay Agent
-
DHCPFind
-
APIPA
Question 8
Question
To communicate across an Ethernet network, your computer must use its _____ bytes physical addresses.
Question 9
Question
In Linux, what file should you consult to check what leases had been given out from the Linux DHCP server?
Question 10
Question
What is the name of the configuration file for DHCP in Linux?
Answer
-
/etc/dhcp/dhcpd.conf
-
/var/lib/dhcpd.conf
-
/usr/sbin/dhcpd.conf
-
/etc/dhcp.config
Question 11
Question
What command line utility is built into Windows system to query DNS servers?
Answer
-
dig
-
DNS active query
-
NSlookup
-
zone
Question 12
Question
Which of the following is considered a DNS alias that points to another host?
Question 13
Question
The DNS query between DNS servers is a/an _________ query.
Answer
-
Caching
-
Reverse
-
Recursive
-
Iterative
Question 14
Question
What is the host name in the DNS address cse.ucsc.edu?
Question 15
Question
Which two records are created by default in a standard primary Forward DNS zone in a DNS server? (Negative marks for incorrect answer)
Answer
-
SOA (Start of Authority)
-
NS (Name Server)
-
PTR (Pointer Record)
-
Host (Address)
Question 16
Question
The root domain in DNS is represented by a:
Question 17
Question
An organization responsible for a domain may divide it into subdomain to decentralize administration.
Question 18
Question
What command line utility is added to Linux based systems to query DNS servers?
Answer
-
zone
-
DNS active query
-
NSilookup
-
dig
Question 19
Question
When will a WINS client register itself with the WINS server?
Answer
-
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.
Question 20
Question
You will find NetBIOS names most likely in what type of network environment?
Answer
-
All Ethernet networks
-
All TCP/IP networks
-
Any network
-
A Microsoft network
Question 21
Question
To avoid causing extra DNS traffic, increase security and save processing time you can add a static entry to your ___________.
Answer
-
ARP cache
-
WINS Configuration
-
Hosts file
-
LMHosts file
Question 22
Question
When a DNS zone information is copied to a slave or secondary DNS server, this is referred to as which of the following process?
Answer
-
host transfer
-
zone transfer
-
static transfer
-
Master transfer
Question 23
Question
Which of the following command/utilities can be used to clear the NetBIOS cache on a WINS system?
Answer
-
net use
-
nbtstat
-
ipconfig
-
net view
Question 24
Question
What command would you use from the command line to start the DNS daemon in Linux system (ex: CentOS)?
Answer
-
service named start
-
service dnsd start
-
service bind start
-
service dns start
Question 25
Question
Which DNS resource records are required to locate servers running specific services?
Answer
-
MX Records
-
NS Records
-
Host Records
-
SRV Records
Question 26
Question
What is the configuration file for DNS in Linux?
Answer
-
/etc/named.conf
-
/etc/dnsd.conf
-
/etc/bind.conf
-
/etc/dns.conf
Question 27
Question
DNS Stands for….
Question 28
Question
If the DNS server does not support ___________, then an administrator must create the host record entries manually.
Question 29
Question
Reverse DNS zones are created within the ______________ domain.
Answer
-
in-addr.rev
-
rev-addr.arpa
-
addr.rev
-
in-addr.arpa
Question 30
Question
Like other services DNS consists of a client and a server service. The terminology used for the client is called ______.
Answer
-
Slave
-
Forwarder
-
Resolver
-
Master
Question 31
Question
Match the followings;
Primary DNS or Master
Answer
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Question 32
Question
Match the followings;
Cache only server
Answer
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Question 33
Question
Match the followings;
Secondary DNS or Slave
Answer
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Question 34
Question
Match the definition with its DNS resource record name,
TXT
Answer
-
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
Question 35
Question
Match the definition with its DNS resource record name:
MX
Answer
-
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
Question 36
Question
Match the definition with its DNS resource record name:
NS
Answer
-
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
Question 37
Question
Match the definition with its DNS resource record name:
PTR
Answer
-
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
Question 38
Question
Match the definition with its DNS resource record name:
A
Answer
-
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
Question 39
Question
Match the definition with its DNS resource record name
CNAME
Answer
-
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
Question 40
Question
Match the definition with its DNS resource record name:
SOA
Answer
-
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
Question 41
Question
Match the definition with its DNS resource record name:
HINFO
Answer
-
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